Working on examples...
This commit is contained in:
Ray
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# Blender v2.78 (sub 0) OBJ File: 'lowpoly-tower.blend'
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# www.blender.org
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||||
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|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 24 KiB |
|
|
@ -1,152 +0,0 @@
|
|||
#version 100
|
||||
|
||||
precision mediump float;
|
||||
|
||||
varying vec3 fragPosition;
|
||||
varying vec2 fragTexCoord;
|
||||
varying vec4 fragColor;
|
||||
varying vec3 fragNormal;
|
||||
|
||||
uniform sampler2D texture0;
|
||||
uniform sampler2D texture1;
|
||||
uniform sampler2D texture2;
|
||||
|
||||
uniform vec4 colAmbient;
|
||||
uniform vec4 colDiffuse;
|
||||
uniform vec4 colSpecular;
|
||||
uniform float glossiness;
|
||||
|
||||
uniform int useNormal;
|
||||
uniform int useSpecular;
|
||||
|
||||
uniform mat4 modelMatrix;
|
||||
uniform vec3 viewDir;
|
||||
|
||||
struct Light {
|
||||
int enabled;
|
||||
int type;
|
||||
vec3 position;
|
||||
vec3 direction;
|
||||
vec4 diffuse;
|
||||
float intensity;
|
||||
float radius;
|
||||
float coneAngle;
|
||||
};
|
||||
|
||||
const int maxLights = 8;
|
||||
uniform Light lights[maxLights];
|
||||
|
||||
vec3 ComputeLightPoint(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1.0));
|
||||
vec3 surfaceToLight = l.position - surfacePos;
|
||||
|
||||
// Diffuse shading
|
||||
float brightness = clamp(float(dot(n, surfaceToLight)/(length(surfaceToLight)*length(n))), 0.0, 1.0);
|
||||
float diff = 1.0/dot(surfaceToLight/l.radius, surfaceToLight/l.radius)*brightness*l.intensity;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diff > 0.0)
|
||||
{
|
||||
vec3 h = normalize(-l.direction + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
return (diff*l.diffuse.rgb + spec*colSpecular.rgb);
|
||||
}
|
||||
|
||||
vec3 ComputeLightDirectional(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 lightDir = normalize(-l.direction);
|
||||
|
||||
// Diffuse shading
|
||||
float diff = clamp(float(dot(n, lightDir)), 0.0, 1.0)*l.intensity;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diff > 0.0)
|
||||
{
|
||||
vec3 h = normalize(lightDir + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
// Combine results
|
||||
return (diff*l.intensity*l.diffuse.rgb + spec*colSpecular.rgb);
|
||||
}
|
||||
|
||||
vec3 ComputeLightSpot(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1));
|
||||
vec3 lightToSurface = normalize(surfacePos - l.position);
|
||||
vec3 lightDir = normalize(-l.direction);
|
||||
|
||||
// Diffuse shading
|
||||
float diff = clamp(float(dot(n, lightDir)), 0.0, 1.0)*l.intensity;
|
||||
|
||||
// Spot attenuation
|
||||
float attenuation = clamp(float(dot(n, lightToSurface)), 0.0, 1.0);
|
||||
attenuation = dot(lightToSurface, -lightDir);
|
||||
|
||||
float lightToSurfaceAngle = degrees(acos(attenuation));
|
||||
if (lightToSurfaceAngle > l.coneAngle) attenuation = 0.0;
|
||||
|
||||
float falloff = (l.coneAngle - lightToSurfaceAngle)/l.coneAngle;
|
||||
|
||||
// Combine diffuse and attenuation
|
||||
float diffAttenuation = diff*attenuation;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diffAttenuation > 0.0)
|
||||
{
|
||||
vec3 h = normalize(lightDir + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
return (falloff*(diffAttenuation*l.diffuse.rgb + spec*colSpecular.rgb));
|
||||
}
|
||||
|
||||
void main()
|
||||
{
|
||||
// Calculate fragment normal in screen space
|
||||
// NOTE: important to multiply model matrix by fragment normal to apply model transformation (rotation and scale)
|
||||
mat3 normalMatrix = mat3(modelMatrix);
|
||||
vec3 normal = normalize(normalMatrix*fragNormal);
|
||||
|
||||
// Normalize normal and view direction vectors
|
||||
vec3 n = normalize(normal);
|
||||
vec3 v = normalize(viewDir);
|
||||
|
||||
// Calculate diffuse texture color fetching
|
||||
vec4 texelColor = texture2D(texture0, fragTexCoord);
|
||||
vec3 lighting = colAmbient.rgb;
|
||||
|
||||
// Calculate normal texture color fetching or set to maximum normal value by default
|
||||
if (useNormal == 1)
|
||||
{
|
||||
n *= texture2D(texture1, fragTexCoord).rgb;
|
||||
n = normalize(n);
|
||||
}
|
||||
|
||||
// Calculate specular texture color fetching or set to maximum specular value by default
|
||||
float spec = 1.0;
|
||||
if (useSpecular == 1) spec = texture2D(texture2, fragTexCoord).r;
|
||||
|
||||
for (int i = 0; i < maxLights; i++)
|
||||
{
|
||||
// Check if light is enabled
|
||||
if (lights[i].enabled == 1)
|
||||
{
|
||||
// Calculate lighting based on light type
|
||||
if(lights[i].type == 0) lighting += ComputeLightPoint(lights[i], n, v, spec);
|
||||
else if(lights[i].type == 1) lighting += ComputeLightDirectional(lights[i], n, v, spec);
|
||||
else if(lights[i].type == 2) lighting += ComputeLightSpot(lights[i], n, v, spec);
|
||||
|
||||
// NOTE: It seems that too many ComputeLight*() operations inside for loop breaks the shader on RPI
|
||||
}
|
||||
}
|
||||
|
||||
// Calculate final fragment color
|
||||
gl_FragColor = vec4(texelColor.rgb*lighting*colDiffuse.rgb, texelColor.a*colDiffuse.a);
|
||||
}
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
#version 100
|
||||
|
||||
attribute vec3 vertexPosition;
|
||||
attribute vec3 vertexNormal;
|
||||
attribute vec2 vertexTexCoord;
|
||||
attribute vec4 vertexColor;
|
||||
|
||||
varying vec3 fragPosition;
|
||||
varying vec2 fragTexCoord;
|
||||
varying vec4 fragColor;
|
||||
varying vec3 fragNormal;
|
||||
|
||||
uniform mat4 mvpMatrix;
|
||||
|
||||
void main()
|
||||
{
|
||||
fragPosition = vertexPosition;
|
||||
fragTexCoord = vertexTexCoord;
|
||||
fragColor = vertexColor;
|
||||
fragNormal = vertexNormal;
|
||||
|
||||
gl_Position = mvpMatrix*vec4(vertexPosition, 1.0);
|
||||
}
|
||||
|
|
@ -1,150 +0,0 @@
|
|||
#version 330
|
||||
|
||||
in vec3 fragPosition;
|
||||
in vec2 fragTexCoord;
|
||||
in vec4 fragColor;
|
||||
in vec3 fragNormal;
|
||||
|
||||
out vec4 finalColor;
|
||||
|
||||
uniform sampler2D texture0;
|
||||
uniform sampler2D texture1;
|
||||
uniform sampler2D texture2;
|
||||
|
||||
uniform vec4 colAmbient;
|
||||
uniform vec4 colDiffuse;
|
||||
uniform vec4 colSpecular;
|
||||
uniform float glossiness;
|
||||
|
||||
uniform int useNormal;
|
||||
uniform int useSpecular;
|
||||
|
||||
uniform mat4 modelMatrix;
|
||||
uniform vec3 viewDir;
|
||||
|
||||
struct Light {
|
||||
int enabled;
|
||||
int type;
|
||||
vec3 position;
|
||||
vec3 direction;
|
||||
vec4 diffuse;
|
||||
float intensity;
|
||||
float radius;
|
||||
float coneAngle;
|
||||
};
|
||||
|
||||
const int maxLights = 8;
|
||||
uniform Light lights[maxLights];
|
||||
|
||||
vec3 ComputeLightPoint(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1));
|
||||
vec3 surfaceToLight = l.position - surfacePos;
|
||||
|
||||
// Diffuse shading
|
||||
float brightness = clamp(float(dot(n, surfaceToLight)/(length(surfaceToLight)*length(n))), 0.0, 1.0);
|
||||
float diff = 1.0/dot(surfaceToLight/l.radius, surfaceToLight/l.radius)*brightness*l.intensity;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diff > 0.0)
|
||||
{
|
||||
vec3 h = normalize(-l.direction + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
return (diff*l.diffuse.rgb + spec*colSpecular.rgb);
|
||||
}
|
||||
|
||||
vec3 ComputeLightDirectional(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 lightDir = normalize(-l.direction);
|
||||
|
||||
// Diffuse shading
|
||||
float diff = clamp(float(dot(n, lightDir)), 0.0, 1.0)*l.intensity;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diff > 0.0)
|
||||
{
|
||||
vec3 h = normalize(lightDir + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
// Combine results
|
||||
return (diff*l.intensity*l.diffuse.rgb + spec*colSpecular.rgb);
|
||||
}
|
||||
|
||||
vec3 ComputeLightSpot(Light l, vec3 n, vec3 v, float s)
|
||||
{
|
||||
vec3 surfacePos = vec3(modelMatrix*vec4(fragPosition, 1));
|
||||
vec3 lightToSurface = normalize(surfacePos - l.position);
|
||||
vec3 lightDir = normalize(-l.direction);
|
||||
|
||||
// Diffuse shading
|
||||
float diff = clamp(float(dot(n, lightDir)), 0.0, 1.0)*l.intensity;
|
||||
|
||||
// Spot attenuation
|
||||
float attenuation = clamp(float(dot(n, lightToSurface)), 0.0, 1.0);
|
||||
attenuation = dot(lightToSurface, -lightDir);
|
||||
|
||||
float lightToSurfaceAngle = degrees(acos(attenuation));
|
||||
if (lightToSurfaceAngle > l.coneAngle) attenuation = 0.0;
|
||||
|
||||
float falloff = (l.coneAngle - lightToSurfaceAngle)/l.coneAngle;
|
||||
|
||||
// Combine diffuse and attenuation
|
||||
float diffAttenuation = diff*attenuation;
|
||||
|
||||
// Specular shading
|
||||
float spec = 0.0;
|
||||
if (diffAttenuation > 0.0)
|
||||
{
|
||||
vec3 h = normalize(lightDir + v);
|
||||
spec = pow(abs(dot(n, h)), 3.0 + glossiness)*s;
|
||||
}
|
||||
|
||||
return (falloff*(diffAttenuation*l.diffuse.rgb + spec*colSpecular.rgb));
|
||||
}
|
||||
|
||||
void main()
|
||||
{
|
||||
// Calculate fragment normal in screen space
|
||||
// NOTE: important to multiply model matrix by fragment normal to apply model transformation (rotation and scale)
|
||||
mat3 normalMatrix = mat3(modelMatrix);
|
||||
vec3 normal = normalize(normalMatrix*fragNormal);
|
||||
|
||||
// Normalize normal and view direction vectors
|
||||
vec3 n = normalize(normal);
|
||||
vec3 v = normalize(viewDir);
|
||||
|
||||
// Calculate diffuse texture color fetching
|
||||
vec4 texelColor = texture(texture0, fragTexCoord);
|
||||
vec3 lighting = colAmbient.rgb;
|
||||
|
||||
// Calculate normal texture color fetching or set to maximum normal value by default
|
||||
if (useNormal == 1)
|
||||
{
|
||||
n *= texture(texture1, fragTexCoord).rgb;
|
||||
n = normalize(n);
|
||||
}
|
||||
|
||||
// Calculate specular texture color fetching or set to maximum specular value by default
|
||||
float spec = 1.0;
|
||||
if (useSpecular == 1) spec = texture(texture2, fragTexCoord).r;
|
||||
|
||||
for (int i = 0; i < maxLights; i++)
|
||||
{
|
||||
// Check if light is enabled
|
||||
if (lights[i].enabled == 1)
|
||||
{
|
||||
// Calculate lighting based on light type
|
||||
if (lights[i].type == 0) lighting += ComputeLightPoint(lights[i], n, v, spec);
|
||||
else if (lights[i].type == 1) lighting += ComputeLightDirectional(lights[i], n, v, spec);
|
||||
else if (lights[i].type == 2) lighting += ComputeLightSpot(lights[i], n, v, spec);
|
||||
}
|
||||
}
|
||||
|
||||
// Calculate final fragment color
|
||||
finalColor = vec4(texelColor.rgb*lighting*colDiffuse.rgb, texelColor.a*colDiffuse.a);
|
||||
}
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
#version 330
|
||||
|
||||
in vec3 vertexPosition;
|
||||
in vec3 vertexNormal;
|
||||
in vec2 vertexTexCoord;
|
||||
in vec4 vertexColor;
|
||||
|
||||
out vec3 fragPosition;
|
||||
out vec2 fragTexCoord;
|
||||
out vec4 fragColor;
|
||||
out vec3 fragNormal;
|
||||
|
||||
uniform mat4 mvpMatrix;
|
||||
|
||||
void main()
|
||||
{
|
||||
fragPosition = vertexPosition;
|
||||
fragTexCoord = vertexTexCoord;
|
||||
fragColor = vertexColor;
|
||||
fragNormal = vertexNormal;
|
||||
|
||||
gl_Position = mvpMatrix*vec4(vertexPosition, 1.0);
|
||||
}
|
||||
|
|
@ -1,482 +0,0 @@
|
|||
/*******************************************************************************************
|
||||
*
|
||||
* raylib [shaders] example - Standard lighting (materials and lights)
|
||||
*
|
||||
* NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
|
||||
* OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
|
||||
*
|
||||
* NOTE: Shaders used in this example are #version 330 (OpenGL 3.3), to test this example
|
||||
* on OpenGL ES 2.0 platforms (Android, Raspberry Pi, HTML5), use #version 100 shaders
|
||||
* raylib comes with shaders ready for both versions, check raylib/shaders install folder
|
||||
*
|
||||
* This example has been created using raylib 1.7 (www.raylib.com)
|
||||
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
|
||||
*
|
||||
* Copyright (c) 2016-2017 Ramon Santamaria (@raysan5)
|
||||
*
|
||||
********************************************************************************************/
|
||||
|
||||
#include "raylib.h"
|
||||
|
||||
#include <stdlib.h> // Required for: NULL
|
||||
#include <string.h> // Required for: strcpy()
|
||||
#include <math.h> // Required for: vector math
|
||||
|
||||
//----------------------------------------------------------------------------------
|
||||
// Defines and Macros
|
||||
//----------------------------------------------------------------------------------
|
||||
#define MAX_LIGHTS 8 // Max lights supported by standard shader
|
||||
|
||||
//----------------------------------------------------------------------------------
|
||||
// Types and Structures Definition
|
||||
//----------------------------------------------------------------------------------
|
||||
|
||||
// Light type
|
||||
typedef struct LightData {
|
||||
unsigned int id; // Light unique id
|
||||
bool enabled; // Light enabled
|
||||
int type; // Light type: LIGHT_POINT, LIGHT_DIRECTIONAL, LIGHT_SPOT
|
||||
|
||||
Vector3 position; // Light position
|
||||
Vector3 target; // Light direction: LIGHT_DIRECTIONAL and LIGHT_SPOT (cone direction target)
|
||||
float radius; // Light attenuation radius light intensity reduced with distance (world distance)
|
||||
|
||||
Color diffuse; // Light diffuse color
|
||||
float intensity; // Light intensity level
|
||||
|
||||
float coneAngle; // Light cone max angle: LIGHT_SPOT
|
||||
} LightData, *Light;
|
||||
|
||||
// Light types
|
||||
typedef enum { LIGHT_POINT, LIGHT_DIRECTIONAL, LIGHT_SPOT } LightType;
|
||||
|
||||
//----------------------------------------------------------------------------------
|
||||
// Global Variables Definition
|
||||
//----------------------------------------------------------------------------------
|
||||
static Light lights[MAX_LIGHTS]; // Lights pool
|
||||
static int lightsCount = 0; // Enabled lights counter
|
||||
static int lightsLocs[MAX_LIGHTS][8]; // Lights location points in shader: 8 possible points per light:
|
||||
// enabled, type, position, target, radius, diffuse, intensity, coneAngle
|
||||
|
||||
//----------------------------------------------------------------------------------
|
||||
// Module Functions Declaration
|
||||
//----------------------------------------------------------------------------------
|
||||
static Light CreateLight(int type, Vector3 position, Color diffuse); // Create a new light, initialize it and add to pool
|
||||
static void DestroyLight(Light light); // Destroy a light and take it out of the list
|
||||
static void DrawLight(Light light); // Draw light in 3D world
|
||||
|
||||
static void GetShaderLightsLocations(Shader shader); // Get shader locations for lights (up to MAX_LIGHTS)
|
||||
static void SetShaderLightsValues(Shader shader); // Set shader uniform values for lights
|
||||
|
||||
// Vector3 math functions
|
||||
static float VectorLength(const Vector3 v); // Calculate vector lenght
|
||||
static void VectorNormalize(Vector3 *v); // Normalize provided vector
|
||||
static Vector3 VectorSubtract(Vector3 v1, Vector3 v2); // Substract two vectors
|
||||
|
||||
|
||||
//https://www.gamedev.net/topic/655969-speed-gluniform-vs-uniform-buffer-objects/
|
||||
//https://www.reddit.com/r/opengl/comments/4ri20g/is_gluniform_more_expensive_than_glprogramuniform/
|
||||
//http://cg.alexandra.dk/?p=3778 - AZDO
|
||||
//https://developer.apple.com/library/content/documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/BestPracticesforShaders/BestPracticesforShaders.html
|
||||
|
||||
//------------------------------------------------------------------------------------
|
||||
// Program main entry point
|
||||
//------------------------------------------------------------------------------------
|
||||
int main()
|
||||
{
|
||||
// Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
int screenWidth = 800;
|
||||
int screenHeight = 450;
|
||||
|
||||
SetConfigFlags(FLAG_MSAA_4X_HINT); // Enable Multi Sampling Anti Aliasing 4x (if available)
|
||||
|
||||
InitWindow(screenWidth, screenHeight, "raylib [shaders] example - model shader");
|
||||
|
||||
// Define the camera to look into our 3d world
|
||||
Camera camera = {{ 4.0f, 4.0f, 4.0f }, { 0.0f, 1.5f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
|
||||
Vector3 position = { 0.0f, 0.0f, 0.0f }; // Set model position
|
||||
|
||||
Model dwarf = LoadModel("resources/model/dwarf.obj"); // Load OBJ model
|
||||
|
||||
Material material;// = LoadStandardMaterial();
|
||||
|
||||
material.shader = LoadShader("resources/shaders/glsl330/standard.vs", "resources/shaders/glsl330/standard.fs");
|
||||
|
||||
// Try to get lights location points (if available)
|
||||
GetShaderLightsLocations(material.shader);
|
||||
|
||||
material.texDiffuse = LoadTexture("resources/model/dwarf_diffuse.png"); // Load model diffuse texture
|
||||
material.texNormal = LoadTexture("resources/model/dwarf_normal.png"); // Load model normal texture
|
||||
material.texSpecular = LoadTexture("resources/model/dwarf_specular.png"); // Load model specular texture
|
||||
material.colDiffuse = WHITE;
|
||||
material.colAmbient = (Color){0, 0, 10, 255};
|
||||
material.colSpecular = WHITE;
|
||||
material.glossiness = 50.0f;
|
||||
|
||||
dwarf.material = material; // Apply material to model
|
||||
|
||||
Light spotLight = CreateLight(LIGHT_SPOT, (Vector3){3.0f, 5.0f, 2.0f}, (Color){255, 255, 255, 255});
|
||||
spotLight->target = (Vector3){0.0f, 0.0f, 0.0f};
|
||||
spotLight->intensity = 2.0f;
|
||||
spotLight->diffuse = (Color){255, 100, 100, 255};
|
||||
spotLight->coneAngle = 60.0f;
|
||||
|
||||
Light dirLight = CreateLight(LIGHT_DIRECTIONAL, (Vector3){0.0f, -3.0f, -3.0f}, (Color){255, 255, 255, 255});
|
||||
dirLight->target = (Vector3){1.0f, -2.0f, -2.0f};
|
||||
dirLight->intensity = 2.0f;
|
||||
dirLight->diffuse = (Color){100, 255, 100, 255};
|
||||
|
||||
Light pointLight = CreateLight(LIGHT_POINT, (Vector3){0.0f, 4.0f, 5.0f}, (Color){255, 255, 255, 255});
|
||||
pointLight->intensity = 2.0f;
|
||||
pointLight->diffuse = (Color){100, 100, 255, 255};
|
||||
pointLight->radius = 3.0f;
|
||||
|
||||
// Set shader lights values for enabled lights
|
||||
// NOTE: If values are not changed in real time, they can be set at initialization!!!
|
||||
SetShaderLightsValues(material.shader);
|
||||
|
||||
//SetShaderActive(0);
|
||||
|
||||
// Setup orbital camera
|
||||
SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital 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);
|
||||
|
||||
Begin3dMode(camera);
|
||||
|
||||
DrawModel(dwarf, position, 2.0f, WHITE); // Draw 3d model with texture
|
||||
|
||||
DrawLight(spotLight); // Draw spot light
|
||||
DrawLight(dirLight); // Draw directional light
|
||||
DrawLight(pointLight); // Draw point light
|
||||
|
||||
DrawGrid(10, 1.0f); // Draw a grid
|
||||
|
||||
End3dMode();
|
||||
|
||||
DrawText("(c) Dwarf 3D model by David Moreno", screenWidth - 200, screenHeight - 20, 10, GRAY);
|
||||
|
||||
DrawFPS(10, 10);
|
||||
|
||||
EndDrawing();
|
||||
//----------------------------------------------------------------------------------
|
||||
}
|
||||
|
||||
// De-Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
UnloadMaterial(material); // Unload material and assigned textures
|
||||
UnloadModel(dwarf); // Unload model
|
||||
|
||||
// Destroy all created lights
|
||||
DestroyLight(pointLight);
|
||||
DestroyLight(dirLight);
|
||||
DestroyLight(spotLight);
|
||||
|
||||
// Unload lights
|
||||
if (lightsCount > 0)
|
||||
{
|
||||
for (int i = 0; i < lightsCount; i++) free(lights[i]);
|
||||
lightsCount = 0;
|
||||
}
|
||||
|
||||
CloseWindow(); // Close window and OpenGL context
|
||||
//--------------------------------------------------------------------------------------
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------
|
||||
// Module Functions Definitions
|
||||
//--------------------------------------------------------------------------------------------
|
||||
|
||||
// Create a new light, initialize it and add to pool
|
||||
Light CreateLight(int type, Vector3 position, Color diffuse)
|
||||
{
|
||||
Light light = NULL;
|
||||
|
||||
if (lightsCount < MAX_LIGHTS)
|
||||
{
|
||||
// Allocate dynamic memory
|
||||
light = (Light)malloc(sizeof(LightData));
|
||||
|
||||
// Initialize light values with generic values
|
||||
light->id = lightsCount;
|
||||
light->type = type;
|
||||
light->enabled = true;
|
||||
|
||||
light->position = position;
|
||||
light->target = (Vector3){ 0.0f, 0.0f, 0.0f };
|
||||
light->intensity = 1.0f;
|
||||
light->diffuse = diffuse;
|
||||
|
||||
// Add new light to the array
|
||||
lights[lightsCount] = light;
|
||||
|
||||
// Increase enabled lights count
|
||||
lightsCount++;
|
||||
}
|
||||
else
|
||||
{
|
||||
// NOTE: Returning latest created light to avoid crashes
|
||||
light = lights[lightsCount];
|
||||
}
|
||||
|
||||
return light;
|
||||
}
|
||||
|
||||
// Destroy a light and take it out of the list
|
||||
void DestroyLight(Light light)
|
||||
{
|
||||
if (light != NULL)
|
||||
{
|
||||
int lightId = light->id;
|
||||
|
||||
// Free dynamic memory allocation
|
||||
free(lights[lightId]);
|
||||
|
||||
// Remove *obj from the pointers array
|
||||
for (int i = lightId; i < lightsCount; i++)
|
||||
{
|
||||
// Resort all the following pointers of the array
|
||||
if ((i + 1) < lightsCount)
|
||||
{
|
||||
lights[i] = lights[i + 1];
|
||||
lights[i]->id = lights[i + 1]->id;
|
||||
}
|
||||
}
|
||||
|
||||
// Decrease enabled physic objects count
|
||||
lightsCount--;
|
||||
}
|
||||
}
|
||||
|
||||
// Draw light in 3D world
|
||||
void DrawLight(Light light)
|
||||
{
|
||||
switch (light->type)
|
||||
{
|
||||
case LIGHT_POINT:
|
||||
{
|
||||
DrawSphereWires(light->position, 0.3f*light->intensity, 8, 8, (light->enabled ? light->diffuse : GRAY));
|
||||
|
||||
DrawCircle3D(light->position, light->radius, (Vector3){ 0, 0, 0 }, 0.0f, (light->enabled ? light->diffuse : GRAY));
|
||||
DrawCircle3D(light->position, light->radius, (Vector3){ 1, 0, 0 }, 90.0f, (light->enabled ? light->diffuse : GRAY));
|
||||
DrawCircle3D(light->position, light->radius, (Vector3){ 0, 1, 0 },90.0f, (light->enabled ? light->diffuse : GRAY));
|
||||
} break;
|
||||
case LIGHT_DIRECTIONAL:
|
||||
{
|
||||
DrawLine3D(light->position, light->target, (light->enabled ? light->diffuse : GRAY));
|
||||
|
||||
DrawSphereWires(light->position, 0.3f*light->intensity, 8, 8, (light->enabled ? light->diffuse : GRAY));
|
||||
DrawCubeWires(light->target, 0.3f, 0.3f, 0.3f, (light->enabled ? light->diffuse : GRAY));
|
||||
} break;
|
||||
case LIGHT_SPOT:
|
||||
{
|
||||
DrawLine3D(light->position, light->target, (light->enabled ? light->diffuse : GRAY));
|
||||
|
||||
Vector3 dir = VectorSubtract(light->target, light->position);
|
||||
VectorNormalize(&dir);
|
||||
|
||||
DrawCircle3D(light->position, 0.5f, dir, 0.0f, (light->enabled ? light->diffuse : GRAY));
|
||||
|
||||
//DrawCylinderWires(light->position, 0.0f, 0.3f*light->coneAngle/50, 0.6f, 5, (light->enabled ? light->diffuse : GRAY));
|
||||
DrawCubeWires(light->target, 0.3f, 0.3f, 0.3f, (light->enabled ? light->diffuse : GRAY));
|
||||
} break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
|
||||
// Get shader locations for lights (up to MAX_LIGHTS)
|
||||
static void GetShaderLightsLocations(Shader shader)
|
||||
{
|
||||
char locName[32] = "lights[x].\0";
|
||||
char locNameUpdated[64];
|
||||
|
||||
for (int i = 0; i < MAX_LIGHTS; i++)
|
||||
{
|
||||
locName[7] = '0' + i;
|
||||
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "enabled\0");
|
||||
lightsLocs[i][0] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "type\0");
|
||||
lightsLocs[i][1] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "position\0");
|
||||
lightsLocs[i][2] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "direction\0");
|
||||
lightsLocs[i][3] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "radius\0");
|
||||
lightsLocs[i][4] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "diffuse\0");
|
||||
lightsLocs[i][5] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "intensity\0");
|
||||
lightsLocs[i][6] = GetShaderLocation(shader, locNameUpdated);
|
||||
|
||||
locNameUpdated[0] = '\0';
|
||||
strcpy(locNameUpdated, locName);
|
||||
strcat(locNameUpdated, "coneAngle\0");
|
||||
lightsLocs[i][7] = GetShaderLocation(shader, locNameUpdated);
|
||||
}
|
||||
}
|
||||
|
||||
// Set shader uniform values for lights
|
||||
// NOTE: It would be far easier with shader UBOs but are not supported on OpenGL ES 2.0
|
||||
// TODO: Replace glUniform1i(), glUniform1f(), glUniform3f(), glUniform4f():
|
||||
//SetShaderValue(Shader shader, int uniformLoc, float *value, int size)
|
||||
//SetShaderValuei(Shader shader, int uniformLoc, int *value, int size)
|
||||
static void SetShaderLightsValues(Shader shader)
|
||||
{
|
||||
int tempInt[8] = { 0 };
|
||||
float tempFloat[8] = { 0.0f };
|
||||
|
||||
for (int i = 0; i < MAX_LIGHTS; i++)
|
||||
{
|
||||
if (i < lightsCount)
|
||||
{
|
||||
tempInt[0] = lights[i]->enabled;
|
||||
SetShaderValuei(shader, lightsLocs[i][0], tempInt, 1); //glUniform1i(lightsLocs[i][0], lights[i]->enabled);
|
||||
|
||||
tempInt[0] = lights[i]->type;
|
||||
SetShaderValuei(shader, lightsLocs[i][1], tempInt, 1); //glUniform1i(lightsLocs[i][1], lights[i]->type);
|
||||
|
||||
tempFloat[0] = (float)lights[i]->diffuse.r/255.0f;
|
||||
tempFloat[1] = (float)lights[i]->diffuse.g/255.0f;
|
||||
tempFloat[2] = (float)lights[i]->diffuse.b/255.0f;
|
||||
tempFloat[3] = (float)lights[i]->diffuse.a/255.0f;
|
||||
SetShaderValue(shader, lightsLocs[i][5], tempFloat, 4);
|
||||
//glUniform4f(lightsLocs[i][5], (float)lights[i]->diffuse.r/255, (float)lights[i]->diffuse.g/255, (float)lights[i]->diffuse.b/255, (float)lights[i]->diffuse.a/255);
|
||||
|
||||
tempFloat[0] = lights[i]->intensity;
|
||||
SetShaderValue(shader, lightsLocs[i][6], tempFloat, 1);
|
||||
|
||||
switch (lights[i]->type)
|
||||
{
|
||||
case LIGHT_POINT:
|
||||
{
|
||||
tempFloat[0] = lights[i]->position.x;
|
||||
tempFloat[1] = lights[i]->position.y;
|
||||
tempFloat[2] = lights[i]->position.z;
|
||||
SetShaderValue(shader, lightsLocs[i][2], tempFloat, 3);
|
||||
|
||||
tempFloat[0] = lights[i]->radius;
|
||||
SetShaderValue(shader, lightsLocs[i][4], tempFloat, 1);
|
||||
|
||||
//glUniform3f(lightsLocs[i][2], lights[i]->position.x, lights[i]->position.y, lights[i]->position.z);
|
||||
//glUniform1f(lightsLocs[i][4], lights[i]->radius);
|
||||
} break;
|
||||
case LIGHT_DIRECTIONAL:
|
||||
{
|
||||
Vector3 direction = VectorSubtract(lights[i]->target, lights[i]->position);
|
||||
VectorNormalize(&direction);
|
||||
|
||||
tempFloat[0] = direction.x;
|
||||
tempFloat[1] = direction.y;
|
||||
tempFloat[2] = direction.z;
|
||||
SetShaderValue(shader, lightsLocs[i][3], tempFloat, 3);
|
||||
|
||||
//glUniform3f(lightsLocs[i][3], direction.x, direction.y, direction.z);
|
||||
} break;
|
||||
case LIGHT_SPOT:
|
||||
{
|
||||
tempFloat[0] = lights[i]->position.x;
|
||||
tempFloat[1] = lights[i]->position.y;
|
||||
tempFloat[2] = lights[i]->position.z;
|
||||
SetShaderValue(shader, lightsLocs[i][2], tempFloat, 3);
|
||||
|
||||
//glUniform3f(lightsLocs[i][2], lights[i]->position.x, lights[i]->position.y, lights[i]->position.z);
|
||||
|
||||
Vector3 direction = VectorSubtract(lights[i]->target, lights[i]->position);
|
||||
VectorNormalize(&direction);
|
||||
|
||||
tempFloat[0] = direction.x;
|
||||
tempFloat[1] = direction.y;
|
||||
tempFloat[2] = direction.z;
|
||||
SetShaderValue(shader, lightsLocs[i][3], tempFloat, 3);
|
||||
//glUniform3f(lightsLocs[i][3], direction.x, direction.y, direction.z);
|
||||
|
||||
tempFloat[0] = lights[i]->coneAngle;
|
||||
SetShaderValue(shader, lightsLocs[i][7], tempFloat, 1);
|
||||
//glUniform1f(lightsLocs[i][7], lights[i]->coneAngle);
|
||||
} break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
tempInt[0] = 0;
|
||||
SetShaderValuei(shader, lightsLocs[i][0], tempInt, 1); //glUniform1i(lightsLocs[i][0], 0); // Light disabled
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Calculate vector lenght
|
||||
float VectorLength(const Vector3 v)
|
||||
{
|
||||
float length;
|
||||
|
||||
length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z);
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
// Normalize provided vector
|
||||
void VectorNormalize(Vector3 *v)
|
||||
{
|
||||
float length, ilength;
|
||||
|
||||
length = VectorLength(*v);
|
||||
|
||||
if (length == 0.0f) length = 1.0f;
|
||||
|
||||
ilength = 1.0f/length;
|
||||
|
||||
v->x *= ilength;
|
||||
v->y *= ilength;
|
||||
v->z *= ilength;
|
||||
}
|
||||
|
||||
// Substract two vectors
|
||||
Vector3 VectorSubtract(Vector3 v1, Vector3 v2)
|
||||
{
|
||||
Vector3 result;
|
||||
|
||||
result.x = v1.x - v2.x;
|
||||
result.y = v1.y - v2.y;
|
||||
result.z = v1.z - v2.z;
|
||||
|
||||
return result;
|
||||
}
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