initial

examples/models/models_skybox.c

@@ -0,0 +1,90 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Skybox loading and drawing
+*
+*   This example has been created using raylib 1.8 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2017 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+int main()
+[
+    # Initialization
+    #--------------------------------------------------------------------------------------
+    int screenWidth = 800
+    int screenHeight = 450
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - skybox loading and drawing")
+
+    # Define the camera to look into our 3d world
+    Camera camera = [[ 1.0, 1.0, 1.0 ], [ 0.0, 0.0, 0.0 ], [ 0.0, 1.0, 0.0 ], 45.0, 0 ]
+
+    # Load skybox model
+    Mesh cube = GenMeshCube(1.0, 1.0, 1.0)
+    Model skybox = LoadModelFromMesh(cube)
+    
+    # Load skybox shader and set required locations
+    # NOTE: Some locations are automatically set at shader loading
+    skybox.material.shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs")
+    SetShaderValuei(skybox.material.shader, GetShaderLocation(skybox.material.shader, "environmentMap"), (int[1])[ MAP_CUBEMAP ], 1)
+
+    # Load cubemap shader and setup required shader locations
+    Shader shdrCubemap = LoadShader("resources/shaders/cubemap.vs", "resources/shaders/cubemap.fs")
+    SetShaderValuei(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1])[ 0 ], 1)
+    
+    # Load HDR panorama (sphere) texture
+    Texture2D texHDR = LoadTexture("resources/dresden_square.hdr")
+    
+    # Generate cubemap (texture with 6 quads-cube-mapping) from panorama HDR texture
+    # NOTE: New texture is generated rendering to texture, shader computes the sphre->cube coordinates mapping
+    skybox.material.maps[MAP_CUBEMAP].texture = GenTextureCubemap(shdrCubemap, texHDR, 512)
+    
+    UnloadTexture(texHDR)      # Texture not required anymore, cubemap already generated
+    UnloadShader(shdrCubemap)  # Unload cubemap generation shader, not required anymore
+    
+    SetCameraMode(camera, CAMERA_FIRST_PERSON)  # Set a first person camera mode
+
+    SetTargetFPS(60)                       # Set our game to run at 60 frames-per-second
+    #--------------------------------------------------------------------------------------
+
+    # Main game loop
+    while (!WindowShouldClose())            # Detect window close button or ESC key
+    [
+        # Update
+        #----------------------------------------------------------------------------------
+        UpdateCamera(&camera)              # Update camera
+        #----------------------------------------------------------------------------------
+
+        # Draw
+        #----------------------------------------------------------------------------------
+        BeginDrawing()
+
+            ClearBackground(RAYWHITE)
+
+            BeginMode3D(camera)
+
+                DrawModel(skybox, (Vector3)[0, 0, 0], 1.0, WHITE)
+                
+                DrawGrid(10, 1.0)
+
+            EndMode3D()
+
+            DrawFPS(10, 10)
+
+        EndDrawing()
+        #----------------------------------------------------------------------------------
+    ]
+
+    # De-Initialization
+    #--------------------------------------------------------------------------------------
+    UnloadModel(skybox)        # Unload skybox model (and textures)
+
+    CloseWindow()              # Close window and OpenGL context
+    #--------------------------------------------------------------------------------------
+
+    return 0
+]