raylib.h updated

raylib/raylib.h

@@ -1,22 +1,22 @@
 /**********************************************************************************************
 *
-*   raylib v5.1-dev - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
+*   raylib v5.5 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
 *
 *   FEATURES:
 *       - NO external dependencies, all required libraries included with raylib
 *       - Multiplatform: Windows, Linux, FreeBSD, OpenBSD, NetBSD, DragonFly,
 *                        MacOS, Haiku, Android, Raspberry Pi, DRM native, HTML5.
 *       - Written in plain C code (C99) in PascalCase/camelCase notation
-*       - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3 or ES2 - choose at compile)
+*       - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3, ES2, ES3 - choose at compile)
 *       - Unique OpenGL abstraction layer (usable as standalone module): [rlgl]
-*       - Multiple Fonts formats supported (TTF, XNA fonts, AngelCode fonts)
+*       - Multiple Fonts formats supported (TTF, OTF, FNT, BDF, Sprite fonts)
 *       - Outstanding texture formats support, including compressed formats (DXT, ETC, ASTC)
 *       - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more!
 *       - Flexible Materials system, supporting classic maps and PBR maps
-*       - Animated 3D models supported (skeletal bones animation) (IQM)
+*       - Animated 3D models supported (skeletal bones animation) (IQM, M3D, GLTF)
 *       - Shaders support, including Model shaders and Postprocessing shaders
 *       - Powerful math module for Vector, Matrix and Quaternion operations: [raymath]
-*       - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, XM, MOD)
+*       - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, QOA, XM, MOD)
 *       - VR stereo rendering with configurable HMD device parameters
 *       - Bindings to multiple programming languages available!
 *
@@ -27,29 +27,35 @@
 *       - One default RenderBatch is loaded on rlglInit()->rlLoadRenderBatch() [rlgl] (OpenGL 3.3 or ES2)
 *
 *   DEPENDENCIES (included):
-*       [rcore] rglfw (Camilla Löwy - github.com/glfw/glfw) for window/context management and input (PLATFORM_DESKTOP)
+*       [rcore][GLFW] rglfw (Camilla Löwy - github.com/glfw/glfw) for window/context management and input
-*       [rlgl] glad (David Herberth - github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading (PLATFORM_DESKTOP)
+*       [rcore][RGFW] rgfw (ColleagueRiley - github.com/ColleagueRiley/RGFW) for window/context management and input
+*       [rlgl] glad/glad_gles2 (David Herberth - github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading
 *       [raudio] miniaudio (David Reid - github.com/mackron/miniaudio) for audio device/context management
 *
 *   OPTIONAL DEPENDENCIES (included):
 *       [rcore] msf_gif (Miles Fogle) for GIF recording
 *       [rcore] sinfl (Micha Mettke) for DEFLATE decompression algorithm
 *       [rcore] sdefl (Micha Mettke) for DEFLATE compression algorithm
+*       [rcore] rprand (Ramon Snatamaria) for pseudo-random numbers generation
+*       [rtextures] qoi (Dominic Szablewski - https://phoboslab.org) for QOI image manage
 *       [rtextures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...)
 *       [rtextures] stb_image_write (Sean Barret) for image writing (BMP, TGA, PNG, JPG)
-*       [rtextures] stb_image_resize (Sean Barret) for image resizing algorithms
+*       [rtextures] stb_image_resize2 (Sean Barret) for image resizing algorithms
+*       [rtextures] stb_perlin (Sean Barret) for Perlin Noise image generation
 *       [rtext] stb_truetype (Sean Barret) for ttf fonts loading
 *       [rtext] stb_rect_pack (Sean Barret) for rectangles packing
 *       [rmodels] par_shapes (Philip Rideout) for parametric 3d shapes generation
 *       [rmodels] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL)
 *       [rmodels] cgltf (Johannes Kuhlmann) for models loading (glTF)
-*       [rmodels] Model3D (bzt) for models loading (M3D, https://bztsrc.gitlab.io/model3d)
+*       [rmodels] m3d (bzt) for models loading (M3D, https://bztsrc.gitlab.io/model3d)
+*       [rmodels] vox_loader (Johann Nadalutti) for models loading (VOX)
 *       [raudio] dr_wav (David Reid) for WAV audio file loading
 *       [raudio] dr_flac (David Reid) for FLAC audio file loading
 *       [raudio] dr_mp3 (David Reid) for MP3 audio file loading
 *       [raudio] stb_vorbis (Sean Barret) for OGG audio loading
 *       [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading
 *       [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading
+*       [raudio] qoa (Dominic Szablewski - https://phoboslab.org) for QOA audio manage
 *
 *
 *   LICENSE: zlib/libpng
@@ -82,9 +88,9 @@
 #include <stdarg.h>     // Required for: va_list - Only used by TraceLogCallback
 
 #define RAYLIB_VERSION_MAJOR 5
-#define RAYLIB_VERSION_MINOR 1
+#define RAYLIB_VERSION_MINOR 5
 #define RAYLIB_VERSION_PATCH 0
-#define RAYLIB_VERSION  "5.1-dev"
+#define RAYLIB_VERSION  "5.5"
 
 // Function specifiers in case library is build/used as a shared library
 // NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll
@@ -352,8 +358,10 @@ typedef struct Mesh {
     // Animation vertex data
     float *animVertices;    // Animated vertex positions (after bones transformations)
     float *animNormals;     // Animated normals (after bones transformations)
-    unsigned char *boneIds; // Vertex bone ids, max 255 bone ids, up to 4 bones influence by vertex (skinning)
+    unsigned char *boneIds; // Vertex bone ids, max 255 bone ids, up to 4 bones influence by vertex (skinning) (shader-location = 6)
-    float *boneWeights;     // Vertex bone weight, up to 4 bones influence by vertex (skinning)
+    float *boneWeights;     // Vertex bone weight, up to 4 bones influence by vertex (skinning) (shader-location = 7)
+    Matrix *boneMatrices;   // Bones animated transformation matrices
+    int boneCount;          // Number of bones
 
     // OpenGL identifiers
     unsigned int vaoId;     // OpenGL Vertex Array Object id
@@ -421,7 +429,7 @@ typedef struct ModelAnimation {
 // Ray, ray for raycasting
 typedef struct Ray {
     Vector3 position;       // Ray position (origin)
-    Vector3 direction;      // Ray direction
+    Vector3 direction;      // Ray direction (normalized)
 } Ray;
 
 // RayCollision, ray hit information
@@ -790,7 +798,10 @@ typedef enum {
     SHADER_LOC_MAP_CUBEMAP,         // Shader location: samplerCube texture: cubemap
     SHADER_LOC_MAP_IRRADIANCE,      // Shader location: samplerCube texture: irradiance
     SHADER_LOC_MAP_PREFILTER,       // Shader location: samplerCube texture: prefilter
-    SHADER_LOC_MAP_BRDF             // Shader location: sampler2d texture: brdf
+    SHADER_LOC_MAP_BRDF,            // Shader location: sampler2d texture: brdf
+    SHADER_LOC_VERTEX_BONEIDS,      // Shader location: vertex attribute: boneIds
+    SHADER_LOC_VERTEX_BONEWEIGHTS,  // Shader location: vertex attribute: boneWeights
+    SHADER_LOC_BONE_MATRICES        // Shader location: array of matrices uniform: boneMatrices
 } ShaderLocationIndex;
 
 #define SHADER_LOC_MAP_DIFFUSE      SHADER_LOC_MAP_ALBEDO
@@ -872,8 +883,7 @@ typedef enum {
     CUBEMAP_LAYOUT_LINE_VERTICAL,           // Layout is defined by a vertical line with faces
     CUBEMAP_LAYOUT_LINE_HORIZONTAL,         // Layout is defined by a horizontal line with faces
     CUBEMAP_LAYOUT_CROSS_THREE_BY_FOUR,     // Layout is defined by a 3x4 cross with cubemap faces
-    CUBEMAP_LAYOUT_CROSS_FOUR_BY_THREE,     // Layout is defined by a 4x3 cross with cubemap faces
+    CUBEMAP_LAYOUT_CROSS_FOUR_BY_THREE     // Layout is defined by a 4x3 cross with cubemap faces
-    CUBEMAP_LAYOUT_PANORAMA                 // Layout is defined by a panorama image (equirrectangular map)
 } CubemapLayout;
 
 // Font type, defines generation method
@@ -934,7 +944,7 @@ typedef enum {
 } NPatchLayout;
 
 // Callbacks to hook some internal functions
-// WARNING: These callbacks are intended for advance users
+// WARNING: These callbacks are intended for advanced users
 typedef void (*TraceLogCallback)(int logLevel, const char *text, va_list args);  // Logging: Redirect trace log messages
 typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, int *dataSize);    // FileIO: Load binary data
 typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, int dataSize);   // FileIO: Save binary data
@@ -960,36 +970,36 @@ RLAPI void CloseWindow(void);                                     // Close windo
 RLAPI bool WindowShouldClose(void);                               // Check if application should close (KEY_ESCAPE pressed or windows close icon clicked)
 RLAPI bool IsWindowReady(void);                                   // Check if window has been initialized successfully
 RLAPI bool IsWindowFullscreen(void);                              // Check if window is currently fullscreen
-RLAPI bool IsWindowHidden(void);                                  // Check if window is currently hidden (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowHidden(void);                                  // Check if window is currently hidden
-RLAPI bool IsWindowMinimized(void);                               // Check if window is currently minimized (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowMinimized(void);                               // Check if window is currently minimized
-RLAPI bool IsWindowMaximized(void);                               // Check if window is currently maximized (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowMaximized(void);                               // Check if window is currently maximized
-RLAPI bool IsWindowFocused(void);                                 // Check if window is currently focused (only PLATFORM_DESKTOP)
+RLAPI bool IsWindowFocused(void);                                 // Check if window is currently focused
 RLAPI bool IsWindowResized(void);                                 // Check if window has been resized last frame
 RLAPI bool IsWindowState(unsigned int flag);                      // Check if one specific window flag is enabled
-RLAPI void SetWindowState(unsigned int flags);                    // Set window configuration state using flags (only PLATFORM_DESKTOP)
+RLAPI void SetWindowState(unsigned int flags);                    // Set window configuration state using flags
 RLAPI void ClearWindowState(unsigned int flags);                  // Clear window configuration state flags
-RLAPI void ToggleFullscreen(void);                                // Toggle window state: fullscreen/windowed (only PLATFORM_DESKTOP)
+RLAPI void ToggleFullscreen(void);                                // Toggle window state: fullscreen/windowed, resizes monitor to match window resolution
-RLAPI void ToggleBorderlessWindowed(void);                        // Toggle window state: borderless windowed (only PLATFORM_DESKTOP)
+RLAPI void ToggleBorderlessWindowed(void);                        // Toggle window state: borderless windowed, resizes window to match monitor resolution
-RLAPI void MaximizeWindow(void);                                  // Set window state: maximized, if resizable (only PLATFORM_DESKTOP)
+RLAPI void MaximizeWindow(void);                                  // Set window state: maximized, if resizable
-RLAPI void MinimizeWindow(void);                                  // Set window state: minimized, if resizable (only PLATFORM_DESKTOP)
+RLAPI void MinimizeWindow(void);                                  // Set window state: minimized, if resizable
-RLAPI void RestoreWindow(void);                                   // Set window state: not minimized/maximized (only PLATFORM_DESKTOP)
+RLAPI void RestoreWindow(void);                                   // Set window state: not minimized/maximized
-RLAPI void SetWindowIcon(Image image);                            // Set icon for window (single image, RGBA 32bit, only PLATFORM_DESKTOP)
+RLAPI void SetWindowIcon(Image image);                            // Set icon for window (single image, RGBA 32bit)
-RLAPI void SetWindowIcons(Image *images, int count);              // Set icon for window (multiple images, RGBA 32bit, only PLATFORM_DESKTOP)
+RLAPI void SetWindowIcons(Image *images, int count);              // Set icon for window (multiple images, RGBA 32bit)
-RLAPI void SetWindowTitle(const char *title);                     // Set title for window (only PLATFORM_DESKTOP and PLATFORM_WEB)
+RLAPI void SetWindowTitle(const char *title);                     // Set title for window
-RLAPI void SetWindowPosition(int x, int y);                       // Set window position on screen (only PLATFORM_DESKTOP)
+RLAPI void SetWindowPosition(int x, int y);                       // Set window position on screen
 RLAPI void SetWindowMonitor(int monitor);                         // Set monitor for the current window
 RLAPI void SetWindowMinSize(int width, int height);               // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE)
 RLAPI void SetWindowMaxSize(int width, int height);               // Set window maximum dimensions (for FLAG_WINDOW_RESIZABLE)
 RLAPI void SetWindowSize(int width, int height);                  // Set window dimensions
-RLAPI void SetWindowOpacity(float opacity);                       // Set window opacity [0.0f..1.0f] (only PLATFORM_DESKTOP)
+RLAPI void SetWindowOpacity(float opacity);                       // Set window opacity [0.0f..1.0f]
-RLAPI void SetWindowFocused(void);                                // Set window focused (only PLATFORM_DESKTOP)
+RLAPI void SetWindowFocused(void);                                // Set window focused
 RLAPI void *GetWindowHandle(void);                                // Get native window handle
 RLAPI int GetScreenWidth(void);                                   // Get current screen width
 RLAPI int GetScreenHeight(void);                                  // Get current screen height
 RLAPI int GetRenderWidth(void);                                   // Get current render width (it considers HiDPI)
 RLAPI int GetRenderHeight(void);                                  // Get current render height (it considers HiDPI)
 RLAPI int GetMonitorCount(void);                                  // Get number of connected monitors
-RLAPI int GetCurrentMonitor(void);                                // Get current connected monitor
+RLAPI int GetCurrentMonitor(void);                                // Get current monitor where window is placed
 RLAPI Vector2 GetMonitorPosition(int monitor);                    // Get specified monitor position
 RLAPI int GetMonitorWidth(int monitor);                           // Get specified monitor width (current video mode used by monitor)
 RLAPI int GetMonitorHeight(int monitor);                          // Get specified monitor height (current video mode used by monitor)
@@ -1001,6 +1011,7 @@ RLAPI Vector2 GetWindowScaleDPI(void);                            // Get window
 RLAPI const char *GetMonitorName(int monitor);                    // Get the human-readable, UTF-8 encoded name of the specified monitor
 RLAPI void SetClipboardText(const char *text);                    // Set clipboard text content
 RLAPI const char *GetClipboardText(void);                         // Get clipboard text content
+RLAPI Image GetClipboardImage(void);                              // Get clipboard image content
 RLAPI void EnableEventWaiting(void);                              // Enable waiting for events on EndDrawing(), no automatic event polling
 RLAPI void DisableEventWaiting(void);                             // Disable waiting for events on EndDrawing(), automatic events polling
 
@@ -1039,7 +1050,7 @@ RLAPI void UnloadVrStereoConfig(VrStereoConfig config);           // Unload VR s
 // NOTE: Shader functionality is not available on OpenGL 1.1
 RLAPI Shader LoadShader(const char *vsFileName, const char *fsFileName);   // Load shader from files and bind default locations
 RLAPI Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode); // Load shader from code strings and bind default locations
-RLAPI bool IsShaderReady(Shader shader);                                   // Check if a shader is ready
+RLAPI bool IsShaderValid(Shader shader);                                   // Check if a shader is valid (loaded on GPU)
 RLAPI int GetShaderLocation(Shader shader, const char *uniformName);       // Get shader uniform location
 RLAPI int GetShaderLocationAttrib(Shader shader, const char *attribName);  // Get shader attribute location
 RLAPI void SetShaderValue(Shader shader, int locIndex, const void *value, int uniformType);               // Set shader uniform value
@@ -1066,7 +1077,7 @@ RLAPI double GetTime(void);                                       // Get elapsed
 RLAPI int GetFPS(void);                                           // Get current FPS
 
 // Custom frame control functions
-// NOTE: Those functions are intended for advance users that want full control over the frame processing
+// NOTE: Those functions are intended for advanced users that want full control over the frame processing
 // By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents()
 // To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL
 RLAPI void SwapScreenBuffer(void);                                // Swap back buffer with front buffer (screen drawing)
@@ -1093,7 +1104,7 @@ RLAPI void *MemRealloc(void *ptr, unsigned int size);             // Internal me
 RLAPI void MemFree(void *ptr);                                    // Internal memory free
 
 // Set custom callbacks
-// WARNING: Callbacks setup is intended for advance users
+// WARNING: Callbacks setup is intended for advanced users
 RLAPI void SetTraceLogCallback(TraceLogCallback callback);         // Set custom trace log
 RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // Set custom file binary data loader
 RLAPI void SetSaveFileDataCallback(SaveFileDataCallback callback); // Set custom file binary data saver
@@ -1122,10 +1133,12 @@ RLAPI const char *GetDirectoryPath(const char *filePath);         // Get full pa
 RLAPI const char *GetPrevDirectoryPath(const char *dirPath);      // Get previous directory path for a given path (uses static string)
 RLAPI const char *GetWorkingDirectory(void);                      // Get current working directory (uses static string)
 RLAPI const char *GetApplicationDirectory(void);                  // Get the directory of the running application (uses static string)
+RLAPI int MakeDirectory(const char *dirPath);                     // Create directories (including full path requested), returns 0 on success
 RLAPI bool ChangeDirectory(const char *dir);                      // Change working directory, return true on success
 RLAPI bool IsPathFile(const char *path);                          // Check if a given path is a file or a directory
+RLAPI bool IsFileNameValid(const char *fileName);                 // Check if fileName is valid for the platform/OS
 RLAPI FilePathList LoadDirectoryFiles(const char *dirPath);       // Load directory filepaths
-RLAPI FilePathList LoadDirectoryFilesEx(const char *basePath, const char *filter, bool scanSubdirs); // Load directory filepaths with extension filtering and recursive directory scan
+RLAPI FilePathList LoadDirectoryFilesEx(const char *basePath, const char *filter, bool scanSubdirs); // Load directory filepaths with extension filtering and recursive directory scan. Use 'DIR' in the filter string to include directories in the result
 RLAPI void UnloadDirectoryFiles(FilePathList files);              // Unload filepaths
 RLAPI bool IsFileDropped(void);                                   // Check if a file has been dropped into window
 RLAPI FilePathList LoadDroppedFiles(void);                        // Load dropped filepaths
@@ -1137,10 +1150,14 @@ RLAPI unsigned char *CompressData(const unsigned char *data, int dataSize, int *
 RLAPI unsigned char *DecompressData(const unsigned char *compData, int compDataSize, int *dataSize);  // Decompress data (DEFLATE algorithm), memory must be MemFree()
 RLAPI char *EncodeDataBase64(const unsigned char *data, int dataSize, int *outputSize);               // Encode data to Base64 string, memory must be MemFree()
 RLAPI unsigned char *DecodeDataBase64(const unsigned char *data, int *outputSize);                    // Decode Base64 string data, memory must be MemFree()
+RLAPI unsigned int ComputeCRC32(unsigned char *data, int dataSize);     // Compute CRC32 hash code
+RLAPI unsigned int *ComputeMD5(unsigned char *data, int dataSize);      // Compute MD5 hash code, returns static int[4] (16 bytes)
+RLAPI unsigned int *ComputeSHA1(unsigned char *data, int dataSize);      // Compute SHA1 hash code, returns static int[5] (20 bytes)
+
 
 // Automation events functionality
 RLAPI AutomationEventList LoadAutomationEventList(const char *fileName);                // Load automation events list from file, NULL for empty list, capacity = MAX_AUTOMATION_EVENTS
-RLAPI void UnloadAutomationEventList(AutomationEventList list);                        // Unload automation events list from file
+RLAPI void UnloadAutomationEventList(AutomationEventList list);                         // Unload automation events list from file
 RLAPI bool ExportAutomationEventList(AutomationEventList list, const char *fileName);   // Export automation events list as text file
 RLAPI void SetAutomationEventList(AutomationEventList *list);                           // Set automation event list to record to
 RLAPI void SetAutomationEventBaseFrame(int frame);                                      // Set automation event internal base frame to start recording
@@ -1154,7 +1171,7 @@ RLAPI void PlayAutomationEvent(AutomationEvent event);
 
 // Input-related functions: keyboard
 RLAPI bool IsKeyPressed(int key);                             // Check if a key has been pressed once
-RLAPI bool IsKeyPressedRepeat(int key);                       // Check if a key has been pressed again (Only PLATFORM_DESKTOP)
+RLAPI bool IsKeyPressedRepeat(int key);                       // Check if a key has been pressed again
 RLAPI bool IsKeyDown(int key);                                // Check if a key is being pressed
 RLAPI bool IsKeyReleased(int key);                            // Check if a key has been released once
 RLAPI bool IsKeyUp(int key);                                  // Check if a key is NOT being pressed
@@ -1173,7 +1190,7 @@ RLAPI int GetGamepadButtonPressed(void);
 RLAPI int GetGamepadAxisCount(int gamepad);                                        // Get gamepad axis count for a gamepad
 RLAPI float GetGamepadAxisMovement(int gamepad, int axis);                         // Get axis movement value for a gamepad axis
 RLAPI int SetGamepadMappings(const char *mappings);                                // Set internal gamepad mappings (SDL_GameControllerDB)
-RLAPI void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor);    // Set gamepad vibration for both motors
+RLAPI void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor, float duration); // Set gamepad vibration for both motors (duration in seconds)
 
 // Input-related functions: mouse
 RLAPI bool IsMouseButtonPressed(int button);                  // Check if a mouse button has been pressed once
@@ -1204,7 +1221,7 @@ RLAPI int GetTouchPointCount(void);                           // Get number of t
 RLAPI void SetGesturesEnabled(unsigned int flags);      // Enable a set of gestures using flags
 RLAPI bool IsGestureDetected(unsigned int gesture);     // Check if a gesture have been detected
 RLAPI int GetGestureDetected(void);                     // Get latest detected gesture
-RLAPI float GetGestureHoldDuration(void);               // Get gesture hold time in milliseconds
+RLAPI float GetGestureHoldDuration(void);               // Get gesture hold time in seconds
 RLAPI Vector2 GetGestureDragVector(void);               // Get gesture drag vector
 RLAPI float GetGestureDragAngle(void);                  // Get gesture drag angle
 RLAPI Vector2 GetGesturePinchVector(void);              // Get gesture pinch delta
@@ -1227,17 +1244,17 @@ RLAPI Texture2D GetShapesTexture(void);                                 // Get t
 RLAPI Rectangle GetShapesTextureRectangle(void);                        // Get texture source rectangle that is used for shapes drawing
 
 // Basic shapes drawing functions
-RLAPI void DrawPixel(int posX, int posY, Color color);                                                   // Draw a pixel
+RLAPI void DrawPixel(int posX, int posY, Color color);                                                   // Draw a pixel using geometry [Can be slow, use with care]
-RLAPI void DrawPixelV(Vector2 position, Color color);                                                    // Draw a pixel (Vector version)
+RLAPI void DrawPixelV(Vector2 position, Color color);                                                    // Draw a pixel using geometry (Vector version) [Can be slow, use with care]
 RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color);                // Draw a line
 RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color);                                     // Draw a line (using gl lines)
 RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color);                       // Draw a line (using triangles/quads)
-RLAPI void DrawLineStrip(Vector2 *points, int pointCount, Color color);                                  // Draw lines sequence (using gl lines)
+RLAPI void DrawLineStrip(const Vector2 *points, int pointCount, Color color);                            // Draw lines sequence (using gl lines)
 RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color);                   // Draw line segment cubic-bezier in-out interpolation
 RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color);                              // Draw a color-filled circle
 RLAPI void DrawCircleSector(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color);      // Draw a piece of a circle
 RLAPI void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw circle sector outline
-RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2);       // Draw a gradient-filled circle
+RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color inner, Color outer);         // Draw a gradient-filled circle
 RLAPI void DrawCircleV(Vector2 center, float radius, Color color);                                       // Draw a color-filled circle (Vector version)
 RLAPI void DrawCircleLines(int centerX, int centerY, float radius, Color color);                         // Draw circle outline
 RLAPI void DrawCircleLinesV(Vector2 center, float radius, Color color);                                  // Draw circle outline (Vector version)
@@ -1249,9 +1266,9 @@ RLAPI void DrawRectangle(int posX, int posY, int width, int height, Color color)
 RLAPI void DrawRectangleV(Vector2 position, Vector2 size, Color color);                                  // Draw a color-filled rectangle (Vector version)
 RLAPI void DrawRectangleRec(Rectangle rec, Color color);                                                 // Draw a color-filled rectangle
 RLAPI void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color);                 // Draw a color-filled rectangle with pro parameters
-RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2);// Draw a vertical-gradient-filled rectangle
+RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color top, Color bottom);   // Draw a vertical-gradient-filled rectangle
-RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2);// Draw a horizontal-gradient-filled rectangle
+RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color left, Color right);   // Draw a horizontal-gradient-filled rectangle
-RLAPI void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4);       // Draw a gradient-filled rectangle with custom vertex colors
+RLAPI void DrawRectangleGradientEx(Rectangle rec, Color topLeft, Color bottomLeft, Color topRight, Color bottomRight); // Draw a gradient-filled rectangle with custom vertex colors
 RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color color);                   // Draw rectangle outline
 RLAPI void DrawRectangleLinesEx(Rectangle rec, float lineThick, Color color);                            // Draw rectangle outline with extended parameters
 RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color);              // Draw rectangle with rounded edges
@@ -1259,18 +1276,18 @@ RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segment
 RLAPI void DrawRectangleRoundedLinesEx(Rectangle rec, float roundness, int segments, float lineThick, Color color); // Draw rectangle with rounded edges outline
 RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                                // Draw a color-filled triangle (vertex in counter-clockwise order!)
 RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                           // Draw triangle outline (vertex in counter-clockwise order!)
-RLAPI void DrawTriangleFan(Vector2 *points, int pointCount, Color color);                                // Draw a triangle fan defined by points (first vertex is the center)
+RLAPI void DrawTriangleFan(const Vector2 *points, int pointCount, Color color);                          // Draw a triangle fan defined by points (first vertex is the center)
-RLAPI void DrawTriangleStrip(Vector2 *points, int pointCount, Color color);                              // Draw a triangle strip defined by points
+RLAPI void DrawTriangleStrip(const Vector2 *points, int pointCount, Color color);                        // Draw a triangle strip defined by points
 RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color);               // Draw a regular polygon (Vector version)
 RLAPI void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Color color);          // Draw a polygon outline of n sides
 RLAPI void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float lineThick, Color color); // Draw a polygon outline of n sides with extended parameters
 
 // Splines drawing functions
-RLAPI void DrawSplineLinear(Vector2 *points, int pointCount, float thick, Color color);                  // Draw spline: Linear, minimum 2 points
+RLAPI void DrawSplineLinear(const Vector2 *points, int pointCount, float thick, Color color);                  // Draw spline: Linear, minimum 2 points
-RLAPI void DrawSplineBasis(Vector2 *points, int pointCount, float thick, Color color);                   // Draw spline: B-Spline, minimum 4 points
+RLAPI void DrawSplineBasis(const Vector2 *points, int pointCount, float thick, Color color);                   // Draw spline: B-Spline, minimum 4 points
-RLAPI void DrawSplineCatmullRom(Vector2 *points, int pointCount, float thick, Color color);              // Draw spline: Catmull-Rom, minimum 4 points
+RLAPI void DrawSplineCatmullRom(const Vector2 *points, int pointCount, float thick, Color color);              // Draw spline: Catmull-Rom, minimum 4 points
-RLAPI void DrawSplineBezierQuadratic(Vector2 *points, int pointCount, float thick, Color color);         // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
+RLAPI void DrawSplineBezierQuadratic(const Vector2 *points, int pointCount, float thick, Color color);         // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
-RLAPI void DrawSplineBezierCubic(Vector2 *points, int pointCount, float thick, Color color);             // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
+RLAPI void DrawSplineBezierCubic(const Vector2 *points, int pointCount, float thick, Color color);             // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
 RLAPI void DrawSplineSegmentLinear(Vector2 p1, Vector2 p2, float thick, Color color);                    // Draw spline segment: Linear, 2 points
 RLAPI void DrawSplineSegmentBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: B-Spline, 4 points
 RLAPI void DrawSplineSegmentCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: Catmull-Rom, 4 points
@@ -1288,12 +1305,13 @@ RLAPI Vector2 GetSplinePointBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vect
 RLAPI bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2);                                           // Check collision between two rectangles
 RLAPI bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, float radius2);        // Check collision between two circles
 RLAPI bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec);                         // Check collision between circle and rectangle
+RLAPI bool CheckCollisionCircleLine(Vector2 center, float radius, Vector2 p1, Vector2 p2);               // Check if circle collides with a line created betweeen two points [p1] and [p2]
 RLAPI bool CheckCollisionPointRec(Vector2 point, Rectangle rec);                                         // Check if point is inside rectangle
 RLAPI bool CheckCollisionPointCircle(Vector2 point, Vector2 center, float radius);                       // Check if point is inside circle
 RLAPI bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3);               // Check if point is inside a triangle
-RLAPI bool CheckCollisionPointPoly(Vector2 point, Vector2 *points, int pointCount);                      // Check if point is within a polygon described by array of vertices
-RLAPI bool CheckCollisionLines(Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint); // Check the collision between two lines defined by two points each, returns collision point by reference
 RLAPI bool CheckCollisionPointLine(Vector2 point, Vector2 p1, Vector2 p2, int threshold);                // Check if point belongs to line created between two points [p1] and [p2] with defined margin in pixels [threshold]
+RLAPI bool CheckCollisionPointPoly(Vector2 point, const Vector2 *points, int pointCount);                // Check if point is within a polygon described by array of vertices
+RLAPI bool CheckCollisionLines(Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint); // Check the collision between two lines defined by two points each, returns collision point by reference
 RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2);                                         // Get collision rectangle for two rectangles collision
 
 //------------------------------------------------------------------------------------
@@ -1304,13 +1322,12 @@ RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2);
 // NOTE: These functions do not require GPU access
 RLAPI Image LoadImage(const char *fileName);                                                             // Load image from file into CPU memory (RAM)
 RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize);       // Load image from RAW file data
-RLAPI Image LoadImageSvg(const char *fileNameOrString, int width, int height);                           // Load image from SVG file data or string with specified size
 RLAPI Image LoadImageAnim(const char *fileName, int *frames);                                            // Load image sequence from file (frames appended to image.data)
 RLAPI Image LoadImageAnimFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int *frames); // Load image sequence from memory buffer
 RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize);      // Load image from memory buffer, fileType refers to extension: i.e. '.png'
 RLAPI Image LoadImageFromTexture(Texture2D texture);                                                     // Load image from GPU texture data
 RLAPI Image LoadImageFromScreen(void);                                                                   // Load image from screen buffer and (screenshot)
-RLAPI bool IsImageReady(Image image);                                                                    // Check if an image is ready
+RLAPI bool IsImageValid(Image image);                                                                    // Check if an image is valid (data and parameters)
 RLAPI void UnloadImage(Image image);                                                                     // Unload image from CPU memory (RAM)
 RLAPI bool ExportImage(Image image, const char *fileName);                                               // Export image data to file, returns true on success
 RLAPI unsigned char *ExportImageToMemory(Image image, const char *fileType, int *fileSize);              // Export image to memory buffer
@@ -1330,6 +1347,7 @@ RLAPI Image GenImageText(int width, int height, const char *text);
 // Image manipulation functions
 RLAPI Image ImageCopy(Image image);                                                                      // Create an image duplicate (useful for transformations)
 RLAPI Image ImageFromImage(Image image, Rectangle rec);                                                  // Create an image from another image piece
+RLAPI Image ImageFromChannel(Image image, int selectedChannel);                                          // Create an image from a selected channel of another image (GRAYSCALE)
 RLAPI Image ImageText(const char *text, int fontSize, Color color);                                      // Create an image from text (default font)
 RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint);         // Create an image from text (custom sprite font)
 RLAPI void ImageFormat(Image *image, int newFormat);                                                     // Convert image data to desired format
@@ -1340,10 +1358,10 @@ RLAPI void ImageAlphaClear(Image *image, Color color, float threshold);
 RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                // Apply alpha mask to image
 RLAPI void ImageAlphaPremultiply(Image *image);                                                          // Premultiply alpha channel
 RLAPI void ImageBlurGaussian(Image *image, int blurSize);                                                // Apply Gaussian blur using a box blur approximation
-RLAPI void ImageKernelConvolution(Image *image, float* kernel, int kernelSize);                         // Apply Custom Square image convolution kernel
+RLAPI void ImageKernelConvolution(Image *image, const float *kernel, int kernelSize);                    // Apply custom square convolution kernel to image
 RLAPI void ImageResize(Image *image, int newWidth, int newHeight);                                       // Resize image (Bicubic scaling algorithm)
 RLAPI void ImageResizeNN(Image *image, int newWidth,int newHeight);                                      // Resize image (Nearest-Neighbor scaling algorithm)
-RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill);  // Resize canvas and fill with color
+RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill); // Resize canvas and fill with color
 RLAPI void ImageMipmaps(Image *image);                                                                   // Compute all mipmap levels for a provided image
 RLAPI void ImageDither(Image *image, int rBpp, int gBpp, int bBpp, int aBpp);                            // Dither image data to 16bpp or lower (Floyd-Steinberg dithering)
 RLAPI void ImageFlipVertical(Image *image);                                                              // Flip image vertically
@@ -1371,6 +1389,7 @@ RLAPI void ImageDrawPixel(Image *dst, int posX, int posY, Color color);
 RLAPI void ImageDrawPixelV(Image *dst, Vector2 position, Color color);                                   // Draw pixel within an image (Vector version)
 RLAPI void ImageDrawLine(Image *dst, int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw line within an image
 RLAPI void ImageDrawLineV(Image *dst, Vector2 start, Vector2 end, Color color);                          // Draw line within an image (Vector version)
+RLAPI void ImageDrawLineEx(Image *dst, Vector2 start, Vector2 end, int thick, Color color);              // Draw a line defining thickness within an image
 RLAPI void ImageDrawCircle(Image *dst, int centerX, int centerY, int radius, Color color);               // Draw a filled circle within an image
 RLAPI void ImageDrawCircleV(Image *dst, Vector2 center, int radius, Color color);                        // Draw a filled circle within an image (Vector version)
 RLAPI void ImageDrawCircleLines(Image *dst, int centerX, int centerY, int radius, Color color);          // Draw circle outline within an image
@@ -1379,6 +1398,11 @@ RLAPI void ImageDrawRectangle(Image *dst, int posX, int posY, int width, int hei
 RLAPI void ImageDrawRectangleV(Image *dst, Vector2 position, Vector2 size, Color color);                 // Draw rectangle within an image (Vector version)
 RLAPI void ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color);                                // Draw rectangle within an image
 RLAPI void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color);                   // Draw rectangle lines within an image
+RLAPI void ImageDrawTriangle(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color color);               // Draw triangle within an image
+RLAPI void ImageDrawTriangleEx(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color c1, Color c2, Color c3); // Draw triangle with interpolated colors within an image
+RLAPI void ImageDrawTriangleLines(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color color);          // Draw triangle outline within an image
+RLAPI void ImageDrawTriangleFan(Image *dst, Vector2 *points, int pointCount, Color color);               // Draw a triangle fan defined by points within an image (first vertex is the center)
+RLAPI void ImageDrawTriangleStrip(Image *dst, Vector2 *points, int pointCount, Color color);             // Draw a triangle strip defined by points within an image
 RLAPI void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec, Color tint);             // Draw a source image within a destination image (tint applied to source)
 RLAPI void ImageDrawText(Image *dst, const char *text, int posX, int posY, int fontSize, Color color);   // Draw text (using default font) within an image (destination)
 RLAPI void ImageDrawTextEx(Image *dst, Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text (custom sprite font) within an image (destination)
@@ -1389,9 +1413,9 @@ RLAPI Texture2D LoadTexture(const char *fileName);
 RLAPI Texture2D LoadTextureFromImage(Image image);                                                       // Load texture from image data
 RLAPI TextureCubemap LoadTextureCubemap(Image image, int layout);                                        // Load cubemap from image, multiple image cubemap layouts supported
 RLAPI RenderTexture2D LoadRenderTexture(int width, int height);                                          // Load texture for rendering (framebuffer)
-RLAPI bool IsTextureReady(Texture2D texture);                                                            // Check if a texture is ready
+RLAPI bool IsTextureValid(Texture2D texture);                                                            // Check if a texture is valid (loaded in GPU)
 RLAPI void UnloadTexture(Texture2D texture);                                                             // Unload texture from GPU memory (VRAM)
-RLAPI bool IsRenderTextureReady(RenderTexture2D target);                                                 // Check if a render texture is ready
+RLAPI bool IsRenderTextureValid(RenderTexture2D target);                                                 // Check if a render texture is valid (loaded in GPU)
 RLAPI void UnloadRenderTexture(RenderTexture2D target);                                                  // Unload render texture from GPU memory (VRAM)
 RLAPI void UpdateTexture(Texture2D texture, const void *pixels);                                         // Update GPU texture with new data
 RLAPI void UpdateTextureRec(Texture2D texture, Rectangle rec, const void *pixels);                       // Update GPU texture rectangle with new data
@@ -1422,6 +1446,7 @@ RLAPI Color ColorBrightness(Color color, float factor);                     // G
 RLAPI Color ColorContrast(Color color, float contrast);                     // Get color with contrast correction, contrast values between -1.0f and 1.0f
 RLAPI Color ColorAlpha(Color color, float alpha);                           // Get color with alpha applied, alpha goes from 0.0f to 1.0f
 RLAPI Color ColorAlphaBlend(Color dst, Color src, Color tint);              // Get src alpha-blended into dst color with tint
+RLAPI Color ColorLerp(Color color1, Color color2, float factor);            // Get color lerp interpolation between two colors, factor [0.0f..1.0f]
 RLAPI Color GetColor(unsigned int hexValue);                                // Get Color structure from hexadecimal value
 RLAPI Color GetPixelColor(void *srcPtr, int format);                        // Get Color from a source pixel pointer of certain format
 RLAPI void SetPixelColor(void *dstPtr, Color color, int format);            // Set color formatted into destination pixel pointer
@@ -1434,10 +1459,10 @@ RLAPI int GetPixelDataSize(int width, int height, int format);              // G
 // Font loading/unloading functions
 RLAPI Font GetFontDefault(void);                                                            // Get the default Font
 RLAPI Font LoadFont(const char *fileName);                                                  // Load font from file into GPU memory (VRAM)
-RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount);  // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set
+RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *codepoints, int codepointCount); // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set, font size is provided in pixels height
 RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar);                        // Load font from Image (XNA style)
 RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
-RLAPI bool IsFontReady(Font font);                                                          // Check if a font is ready
+RLAPI bool IsFontValid(Font font);                                                          // Check if a font is valid (font data loaded, WARNING: GPU texture not checked)
 RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *codepoints, int codepointCount, int type); // Load font data for further use
 RLAPI Image GenImageFontAtlas(const GlyphInfo *glyphs, Rectangle **glyphRecs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info
 RLAPI void UnloadFontData(GlyphInfo *glyphs, int glyphCount);                               // Unload font chars info data (RAM)
@@ -1487,6 +1512,9 @@ RLAPI int TextFindIndex(const char *text, const char *find);
 RLAPI const char *TextToUpper(const char *text);                      // Get upper case version of provided string
 RLAPI const char *TextToLower(const char *text);                      // Get lower case version of provided string
 RLAPI const char *TextToPascal(const char *text);                     // Get Pascal case notation version of provided string
+RLAPI const char *TextToSnake(const char *text);                      // Get Snake case notation version of provided string
+RLAPI const char *TextToCamel(const char *text);                      // Get Camel case notation version of provided string
+
 RLAPI int TextToInteger(const char *text);                            // Get integer value from text (negative values not supported)
 RLAPI float TextToFloat(const char *text);                            // Get float value from text (negative values not supported)
 
@@ -1499,7 +1527,7 @@ RLAPI void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color);
 RLAPI void DrawPoint3D(Vector3 position, Color color);                                                   // Draw a point in 3D space, actually a small line
 RLAPI void DrawCircle3D(Vector3 center, float radius, Vector3 rotationAxis, float rotationAngle, Color color); // Draw a circle in 3D world space
 RLAPI void DrawTriangle3D(Vector3 v1, Vector3 v2, Vector3 v3, Color color);                              // Draw a color-filled triangle (vertex in counter-clockwise order!)
-RLAPI void DrawTriangleStrip3D(Vector3 *points, int pointCount, Color color);                            // Draw a triangle strip defined by points
+RLAPI void DrawTriangleStrip3D(const Vector3 *points, int pointCount, Color color);                      // Draw a triangle strip defined by points
 RLAPI void DrawCube(Vector3 position, float width, float height, float length, Color color);             // Draw cube
 RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color);                                       // Draw cube (Vector version)
 RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color);        // Draw cube wires
@@ -1524,7 +1552,7 @@ RLAPI void DrawGrid(int slices, float spacing);
 // Model management functions
 RLAPI Model LoadModel(const char *fileName);                                                // Load model from files (meshes and materials)
 RLAPI Model LoadModelFromMesh(Mesh mesh);                                                   // Load model from generated mesh (default material)
-RLAPI bool IsModelReady(Model model);                                                       // Check if a model is ready
+RLAPI bool IsModelValid(Model model);                                                       // Check if a model is valid (loaded in GPU, VAO/VBOs)
 RLAPI void UnloadModel(Model model);                                                        // Unload model (including meshes) from memory (RAM and/or VRAM)
 RLAPI BoundingBox GetModelBoundingBox(Model model);                                         // Compute model bounding box limits (considers all meshes)
 
@@ -1533,8 +1561,10 @@ RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint);
 RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters
 RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint);          // Draw a model wires (with texture if set)
 RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters
+RLAPI void DrawModelPoints(Model model, Vector3 position, float scale, Color tint); // Draw a model as points
+RLAPI void DrawModelPointsEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model as points with extended parameters
 RLAPI void DrawBoundingBox(BoundingBox box, Color color);                                   // Draw bounding box (wires)
-RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float size, Color tint);   // Draw a billboard texture
+RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float scale, Color tint);   // Draw a billboard texture
 RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source
 RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector3 up, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation
 
@@ -1565,14 +1595,15 @@ RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize);
 // Material loading/unloading functions
 RLAPI Material *LoadMaterials(const char *fileName, int *materialCount);                    // Load materials from model file
 RLAPI Material LoadMaterialDefault(void);                                                   // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
-RLAPI bool IsMaterialReady(Material material);                                              // Check if a material is ready
+RLAPI bool IsMaterialValid(Material material);                                              // Check if a material is valid (shader assigned, map textures loaded in GPU)
 RLAPI void UnloadMaterial(Material material);                                               // Unload material from GPU memory (VRAM)
 RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture);          // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
 RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId);                  // Set material for a mesh
 
 // Model animations loading/unloading functions
 RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animCount);            // Load model animations from file
-RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame);               // Update model animation pose
+RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame);               // Update model animation pose (CPU)
+RLAPI void UpdateModelAnimationBones(Model model, ModelAnimation anim, int frame);          // Update model animation mesh bone matrices (GPU skinning)
 RLAPI void UnloadModelAnimation(ModelAnimation anim);                                       // Unload animation data
 RLAPI void UnloadModelAnimations(ModelAnimation *animations, int animCount);                // Unload animation array data
 RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim);                         // Check model animation skeleton match
@@ -1602,11 +1633,11 @@ RLAPI float GetMasterVolume(void);                                    // Get mas
 // Wave/Sound loading/unloading functions
 RLAPI Wave LoadWave(const char *fileName);                            // Load wave data from file
 RLAPI Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load wave from memory buffer, fileType refers to extension: i.e. '.wav'
-RLAPI bool IsWaveReady(Wave wave);                                    // Checks if wave data is ready
+RLAPI bool IsWaveValid(Wave wave);                                    // Checks if wave data is valid (data loaded and parameters)
 RLAPI Sound LoadSound(const char *fileName);                          // Load sound from file
 RLAPI Sound LoadSoundFromWave(Wave wave);                             // Load sound from wave data
 RLAPI Sound LoadSoundAlias(Sound source);                             // Create a new sound that shares the same sample data as the source sound, does not own the sound data
-RLAPI bool IsSoundReady(Sound sound);                                 // Checks if a sound is ready
+RLAPI bool IsSoundValid(Sound sound);                                 // Checks if a sound is valid (data loaded and buffers initialized)
 RLAPI void UpdateSound(Sound sound, const void *data, int sampleCount); // Update sound buffer with new data
 RLAPI void UnloadWave(Wave wave);                                     // Unload wave data
 RLAPI void UnloadSound(Sound sound);                                  // Unload sound
@@ -1624,7 +1655,7 @@ RLAPI void SetSoundVolume(Sound sound, float volume);                 // Set vol
 RLAPI void SetSoundPitch(Sound sound, float pitch);                   // Set pitch for a sound (1.0 is base level)
 RLAPI void SetSoundPan(Sound sound, float pan);                       // Set pan for a sound (0.5 is center)
 RLAPI Wave WaveCopy(Wave wave);                                       // Copy a wave to a new wave
-RLAPI void WaveCrop(Wave *wave, int initSample, int finalSample);     // Crop a wave to defined samples range
+RLAPI void WaveCrop(Wave *wave, int initFrame, int finalFrame);       // Crop a wave to defined frames range
 RLAPI void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format
 RLAPI float *LoadWaveSamples(Wave wave);                              // Load samples data from wave as a 32bit float data array
 RLAPI void UnloadWaveSamples(float *samples);                         // Unload samples data loaded with LoadWaveSamples()
@@ -1632,7 +1663,7 @@ RLAPI void UnloadWaveSamples(float *samples);                         // Unload
 // Music management functions
 RLAPI Music LoadMusicStream(const char *fileName);                    // Load music stream from file
 RLAPI Music LoadMusicStreamFromMemory(const char *fileType, const unsigned char *data, int dataSize); // Load music stream from data
-RLAPI bool IsMusicReady(Music music);                                 // Checks if a music stream is ready
+RLAPI bool IsMusicValid(Music music);                                 // Checks if a music stream is valid (context and buffers initialized)
 RLAPI void UnloadMusicStream(Music music);                            // Unload music stream
 RLAPI void PlayMusicStream(Music music);                              // Start music playing
 RLAPI bool IsMusicStreamPlaying(Music music);                         // Check if music is playing
@@ -1649,7 +1680,7 @@ RLAPI float GetMusicTimePlayed(Music music);                          // Get cur
 
 // AudioStream management functions
 RLAPI AudioStream LoadAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Load audio stream (to stream raw audio pcm data)
-RLAPI bool IsAudioStreamReady(AudioStream stream);                    // Checks if an audio stream is ready
+RLAPI bool IsAudioStreamValid(AudioStream stream);                    // Checks if an audio stream is valid (buffers initialized)
 RLAPI void UnloadAudioStream(AudioStream stream);                     // Unload audio stream and free memory
 RLAPI void UpdateAudioStream(AudioStream stream, const void *data, int frameCount); // Update audio stream buffers with data
 RLAPI bool IsAudioStreamProcessed(AudioStream stream);                // Check if any audio stream buffers requires refill