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@ -42,10 +42,11 @@ int main(void) |
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const int screenWidth = 800; |
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const int screenHeight = 450; |
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SetConfigFlags(FLAG_MSAA_4X_HINT); |
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// Shadows are a HUGE topic, and this example shows an extremely simple implementation of the shadowmapping algorithm, |
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// which is the industry standard for shadows. This algorithm can be extended in a ridiculous number of ways to improve |
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// realism and also adapt it for different scenes. This is pretty much the simplest possible implementation |
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SetConfigFlags(FLAG_MSAA_4X_HINT); |
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InitWindow(screenWidth, screenHeight, "raylib [shaders] example - shadowmap rendering"); |
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Camera3D camera = (Camera3D){ 0 }; |
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@ -143,8 +144,8 @@ int main(void) |
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// Draw |
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//---------------------------------------------------------------------------------- |
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// First, render all objects into the shadowmap |
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// The idea is, we record all the objects' depths (as rendered from the light source's point of view) in a buffer |
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// PASS 01: Render all objects into the shadowmap render texture |
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// We record all the objects' depths (as rendered from the light source's point of view) in a buffer |
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// Anything that is "visible" to the light is in light, anything that isn't is in shadow |
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// We can later use the depth buffer when rendering everything from the player's point of view |
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// to determine whether a given point is "visible" to the light |
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@ -160,7 +161,7 @@ int main(void) |
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EndTextureMode(); |
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lightViewProj = MatrixMultiply(lightView, lightProj); |
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// Draw the scene using the generated shadowmap |
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// PASS 02: Draw the scene into main framebuffer, using the generated shadowmap |
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BeginDrawing(); |
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ClearBackground(RAYWHITE); |
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@ -199,7 +200,7 @@ int main(void) |
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} |
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// Load render texture for shadowmap projection |
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// NOTE: Load frmaebuffer with only a texture depth attachment, |
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// NOTE: Load framebuffer with only a texture depth attachment, |
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// no color attachment required for shadowmap |
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static RenderTexture2D LoadShadowmapRenderTexture(int width, int height) |
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{ |
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@ -214,11 +215,11 @@ static RenderTexture2D LoadShadowmapRenderTexture(int width, int height) |
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rlEnableFramebuffer(target.id); |
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// Create depth texture |
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// ">We don't need a color texture for the shadowmap |
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// l">NOTE: No need a color texture attachment for the shadowmap |
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target.depth.id = rlLoadTextureDepth(width, height, false); |
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target.depth.width = width; |
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target.depth.height = height; |
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target.depth.format = 19; //DEPTH_COMPONENT_24BIT? |
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target.depth.format = 19; // DEPTH_COMPONENT_24BIT? |
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target.depth.mipmaps = 1; |
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// Attach depth texture to FBO |
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@ -245,8 +246,8 @@ static void UnloadShadowmapRenderTexture(RenderTexture2D target) |
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} |
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} |
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// Draw scene |
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// NOTE: Required several calls to generate shadowmap |
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// Draw full scene projecting shadows |
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// NOTE: Required to be called several time to generate shadowmap |
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static void DrawScene(Model cube, Model robot) |
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{ |
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DrawModelEx(cube, Vector3Zero(), (Vector3) { 0.0f, 1.0f, 0.0f }, 0.0f, (Vector3) { 10.0f, 1.0f, 10.0f }, BLUE); |
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