Removed colTint, tint color is colDiffuse

Tint color could be applied to colDiffuse... but what's the best way?
Replace it? Multiply by? A point to think about...

examples/resources/shaders/glsl330/grayscale.fs

@@ -6,7 +6,7 @@ in vec4 fragColor;
 
 // Input uniform values
 uniform sampler2D texture0;
-uniform vec4 fragTintColor;
+uniform vec4 colDiffuse;
 
 // Output fragment color
 out vec4 finalColor;
@@ -16,7 +16,7 @@ out vec4 finalColor;
 void main()
 {
     // Texel color fetching from texture sampler
-    vec4 texelColor = texture(texture0, fragTexCoord)*fragTintColor*fragColor;
+    vec4 texelColor = texture(texture0, fragTexCoord)*colDiffuse*fragColor;
     
     // Convert texel color to grayscale using NTSC conversion weights
     float gray = dot(texelColor.rgb, vec3(0.299, 0.587, 0.114));

examples/resources/shaders/standard.fs

@@ -11,7 +11,6 @@ uniform sampler2D texture0;
 uniform sampler2D texture1;
 uniform sampler2D texture2;
 
-uniform vec4 colTint;
 uniform vec4 colAmbient;
 uniform vec4 colDiffuse;
 uniform vec4 colSpecular;
@@ -55,7 +54,7 @@ vec3 CalcPointLight(Light l, vec3 n, vec3 v, float s)
         spec = pow(dot(n, h), 3 + glossiness)*s;
     }
     
-    return (diff*l.diffuse.rgb*colDiffuse.rgb + spec*colSpecular.rgb);
+    return (diff*l.diffuse.rgb + spec*colSpecular.rgb);
 }
 
 vec3 CalcDirectionalLight(Light l, vec3 n, vec3 v, float s)
@@ -74,7 +73,7 @@ vec3 CalcDirectionalLight(Light l, vec3 n, vec3 v, float s)
     }
     
     // Combine results
-    return (diff*l.intensity*l.diffuse.rgb*colDiffuse.rgb + spec*colSpecular.rgb);
+    return (diff*l.intensity*l.diffuse.rgb + spec*colSpecular.rgb);
 }
 
 vec3 CalcSpotLight(Light l, vec3 n, vec3 v, float s)
@@ -150,5 +149,5 @@ void main()
     }
     
     // Calculate final fragment color
-    finalColor = vec4(texelColor.rgb*lighting*colTint.rgb, texelColor.a*colTint.a);
+    finalColor = vec4(texelColor.rgb*lighting*colDiffuse.rgb, texelColor.a*colDiffuse.a);
 }

examples/shaders_standard_lighting.c

@@ -40,9 +40,9 @@ int main()
     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 = (Color){255, 255, 255, 255};
+    material.colDiffuse = WHITE;
     material.colAmbient = (Color){0, 0, 10, 255};
-    material.colSpecular = (Color){255, 255, 255, 255};
+    material.colSpecular = WHITE;
     material.glossiness = 50.0f;
     
     dwarf.material = material;      // Apply material to model

src/models.c

@@ -780,7 +780,6 @@ Material LoadDefaultMaterial(void)
     //material.texNormal;           // NOTE: By default, not set
     //material.texSpecular;         // NOTE: By default, not set
 
-    material.colTint = WHITE;       // Tint color
     material.colDiffuse = WHITE;    // Diffuse color
     material.colAmbient = WHITE;    // Ambient color
     material.colSpecular = WHITE;   // Specular color
@@ -1298,7 +1297,7 @@ void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rota
     //Matrix matModel = MatrixMultiply(model.transform, matTransform);    // Transform to world-space coordinates
     
     model.transform = MatrixMultiply(MatrixMultiply(matScale, matRotation), matTranslation);
-    model.material.colTint = tint;
+    model.material.colDiffuse = tint;       // TODO: Multiply tint color by diffuse color?
     
     rlglDrawMesh(model.mesh, model.material, model.transform);
 }

src/raylib.h

@@ -414,7 +414,6 @@ typedef struct Material {
     Texture2D texNormal;        // Normal texture   (binded to shader mapTexture1Loc)
     Texture2D texSpecular;      // Specular texture (binded to shader mapTexture2Loc)
     
-    Color colTint;              // Tint color
     Color colDiffuse;           // Diffuse color
     Color colAmbient;           // Ambient color
     Color colSpecular;          // Specular color

src/rlgl.c

@@ -1800,9 +1800,6 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform)
         // Setup shader uniforms for lights
         SetShaderLights(material.shader);
         
-        // Upload to shader material.colSpecular
-        glUniform4f(glGetUniformLocation(material.shader.id, "colTint"), (float)material.colTint.r/255, (float)material.colTint.g/255, (float)material.colTint.b/255, (float)material.colTint.a/255);
-        
         // Upload to shader material.colAmbient
         glUniform4f(glGetUniformLocation(material.shader.id, "colAmbient"), (float)material.colAmbient.r/255, (float)material.colAmbient.g/255, (float)material.colAmbient.b/255, (float)material.colAmbient.a/255);
         

src/rlgl.h

@@ -202,7 +202,6 @@ typedef enum { OPENGL_11 = 1, OPENGL_33, OPENGL_ES_20 } GlVersion;
         Texture2D texNormal;        // Normal texture
         Texture2D texSpecular;      // Specular texture
 
-        Color colTint;              // Tint color
         Color colDiffuse;           // Diffuse color
         Color colAmbient;           // Ambient color
         Color colSpecular;          // Specular color
@@ -212,18 +211,18 @@ typedef enum { OPENGL_11 = 1, OPENGL_33, OPENGL_ES_20 } GlVersion;
     
     // Light type
     typedef struct LightData {
-        int id;
+        unsigned int id;    // Light id
-        int type;           // LIGHT_POINT, LIGHT_DIRECTIONAL, LIGHT_SPOT
+        int type;           // Light type: LIGHT_POINT, LIGHT_DIRECTIONAL, LIGHT_SPOT
-        bool enabled;
+        bool enabled;       // Light enabled
         
-        Vector3 position;
+        Vector3 position;   // Light position
-        Vector3 target;     // Used on LIGHT_DIRECTIONAL and LIGHT_SPOT (cone direction target)
+        Vector3 target;     // Light target: LIGHT_DIRECTIONAL and LIGHT_SPOT (cone direction target)
-        float radius;       // Lost of light intensity with distance (world distance)
+        float radius;       // Light attenuation radius light intensity reduced with distance (world distance)
         
-        Color diffuse;      // Use Vector3 diffuse
+        Color diffuse;      // Light diffuse color
-        float intensity;
+        float intensity;    // Light intensity level
         
-        float coneAngle;    // Spot light max angle
+        float coneAngle;    // Light cone max angle: LIGHT_SPOT
     } LightData, *Light;
 	
     // Color blending modes (pre-defined)