diff options
Diffstat (limited to 'examples/src/models/models_material_pbr.c')
| -rw-r--r-- | examples/src/models/models_material_pbr.c | 83 |
1 files changed, 47 insertions, 36 deletions
diff --git a/examples/src/models/models_material_pbr.c b/examples/src/models/models_material_pbr.c index 5c308cf..8d51eef 100644 --- a/examples/src/models/models_material_pbr.c +++ b/examples/src/models/models_material_pbr.c @@ -25,12 +25,12 @@ // PBR material loading static Material LoadMaterialPBR(Color albedo, float metalness, float roughness); -int main() +int main(void) { // Initialization //-------------------------------------------------------------------------------------- - int screenWidth = 800; - int screenHeight = 450; + const int screenWidth = 800; + const int screenHeight = 450; SetConfigFlags(FLAG_MSAA_4X_HINT); // Enable Multi Sampling Anti Aliasing 4x (if available) InitWindow(screenWidth, screenHeight, "raylib [models] example - pbr material"); @@ -45,7 +45,7 @@ int main() // Load model and PBR material Model model = LoadModel("resources/pbr/trooper.obj"); - + // Mesh tangents are generated... and uploaded to GPU // NOTE: New VBO for tangents is generated at default location and also binded to mesh VAO MeshTangents(&model.meshes[0]); @@ -54,13 +54,13 @@ int main() // Define lights attributes // NOTE: Shader is passed to every light on creation to define shader bindings internally - Light lights[MAX_LIGHTS] = { + Light lights[MAX_LIGHTS] = { CreateLight(LIGHT_POINT, (Vector3){ LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 0, 255 }, model.materials[0].shader), CreateLight(LIGHT_POINT, (Vector3){ 0.0f, LIGHT_HEIGHT, LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 255, 0, 255 }, model.materials[0].shader), CreateLight(LIGHT_POINT, (Vector3){ -LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 0, 255, 255 }, model.materials[0].shader), - CreateLight(LIGHT_DIRECTIONAL, (Vector3){ 0.0f, LIGHT_HEIGHT*2.0f, -LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 255, 255 }, model.materials[0].shader) + CreateLight(LIGHT_DIRECTIONAL, (Vector3){ 0.0f, LIGHT_HEIGHT*2.0f, -LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 255, 255 }, model.materials[0].shader) }; - + SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital camera mode SetTargetFPS(60); // Set our game to run at 60 frames-per-second @@ -72,7 +72,7 @@ int main() // Update //---------------------------------------------------------------------------------- UpdateCamera(&camera); // Update camera - + // Send to material PBR shader camera view position float cameraPos[3] = { camera.position.x, camera.position.y, camera.position.z }; SetShaderValue(model.materials[0].shader, model.materials[0].shader.locs[LOC_VECTOR_VIEW], cameraPos, UNIFORM_VEC3); @@ -87,7 +87,7 @@ int main() BeginMode3D(camera); DrawModel(model, Vector3Zero(), 1.0f, WHITE); - + DrawGrid(10, 1.0f); EndMode3D(); @@ -114,11 +114,12 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness) { Material mat = { 0 }; // NOTE: All maps textures are set to { 0 } - #define PATH_PBR_VS "resources/shaders/pbr.vs" // Path to physically based rendering vertex shader - #define PATH_PBR_FS "resources/shaders/pbr.fs" // Path to physically based rendering fragment shader - - mat.shader = LoadShader(PATH_PBR_VS, PATH_PBR_FS); - +#if defined(PLATFORM_DESKTOP) + mat.shader = LoadShader("resources/shaders/glsl330/pbr.vs", "resources/shaders/glsl330/pbr.fs"); +#else // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB + mat.shader = LoadShader("resources/shaders/glsl100/pbr.vs", "resources/shaders/glsl100/pbr.fs"); +#endif + // Get required locations points for PBR material // NOTE: Those location names must be available and used in the shader code mat.shader.locs[LOC_MAP_ALBEDO] = GetShaderLocation(mat.shader, "albedo.sampler"); @@ -136,7 +137,7 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness) mat.shader.locs[LOC_MATRIX_MODEL] = GetShaderLocation(mat.shader, "matModel"); mat.shader.locs[LOC_MATRIX_VIEW] = GetShaderLocation(mat.shader, "view"); mat.shader.locs[LOC_VECTOR_VIEW] = GetShaderLocation(mat.shader, "viewPos"); - + // Set PBR standard maps mat.maps[MAP_ALBEDO].texture = LoadTexture("resources/pbr/trooper_albedo.png"); mat.maps[MAP_NORMAL].texture = LoadTexture("resources/pbr/trooper_normals.png"); @@ -144,23 +145,33 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness) mat.maps[MAP_ROUGHNESS].texture = LoadTexture("resources/pbr/trooper_roughness.png"); mat.maps[MAP_OCCLUSION].texture = LoadTexture("resources/pbr/trooper_ao.png"); - // Set environment maps - #define PATH_CUBEMAP_VS "resources/shaders/cubemap.vs" // Path to equirectangular to cubemap vertex shader - #define PATH_CUBEMAP_FS "resources/shaders/cubemap.fs" // Path to equirectangular to cubemap fragment shader - #define PATH_SKYBOX_VS "resources/shaders/skybox.vs" // Path to skybox vertex shader - #define PATH_IRRADIANCE_FS "resources/shaders/irradiance.fs" // Path to irradiance (GI) calculation fragment shader - #define PATH_PREFILTER_FS "resources/shaders/prefilter.fs" // Path to reflection prefilter calculation fragment shader - #define PATH_BRDF_VS "resources/shaders/brdf.vs" // Path to bidirectional reflectance distribution function vertex shader - #define PATH_BRDF_FS "resources/shaders/brdf.fs" // Path to bidirectional reflectance distribution function fragment shader - - Shader shdrCubemap = LoadShader(PATH_CUBEMAP_VS, PATH_CUBEMAP_FS); - printf("Loaded shader: cubemap\n"); - Shader shdrIrradiance = LoadShader(PATH_SKYBOX_VS, PATH_IRRADIANCE_FS); - printf("Loaded shader: irradiance\n"); - Shader shdrPrefilter = LoadShader(PATH_SKYBOX_VS, PATH_PREFILTER_FS); - printf("Loaded shader: prefilter\n"); - Shader shdrBRDF = LoadShader(PATH_BRDF_VS, PATH_BRDF_FS); - printf("Loaded shader: brdf\n"); + // Load equirectangular to cubemap shader +#if defined(PLATFORM_DESKTOP) + Shader shdrCubemap = LoadShader("resources/shaders/glsl330/cubemap.vs", "resources/shaders/glsl330/cubemap.fs"); +#else // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB + Shader shdrCubemap = LoadShader("resources/shaders/glsl100/cubemap.vs", "resources/shaders/glsl100/cubemap.fs"); +#endif + + // Load irradiance (GI) calculation shader +#if defined(PLATFORM_DESKTOP) + Shader shdrIrradiance = LoadShader("resources/shaders/glsl330/skybox.vs", "resources/shaders/glsl330/irradiance.fs"); +#else // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB + Shader shdrIrradiance = LoadShader("resources/shaders/glsl100/skybox.vs", "resources/shaders/glsl100/irradiance.fs"); +#endif + + // Load reflection prefilter calculation shader +#if defined(PLATFORM_DESKTOP) + Shader shdrPrefilter = LoadShader("resources/shaders/glsl330/skybox.vs", "resources/shaders/glsl330/prefilter.fs"); +#else + Shader shdrPrefilter = LoadShader("resources/shaders/glsl100/skybox.vs", "resources/shaders/glsl100/prefilter.fs"); +#endif + + // Load bidirectional reflectance distribution function shader +#if defined(PLATFORM_DESKTOP) + Shader shdrBRDF = LoadShader("resources/shaders/glsl330/brdf.vs", "resources/shaders/glsl330/brdf.fs"); +#else + Shader shdrBRDF = LoadShader("resources/shaders/glsl100/brdf.vs", "resources/shaders/glsl100/brdf.fs"); +#endif // Setup required shader locations SetShaderValue(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, UNIFORM_INT); @@ -174,27 +185,27 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness) mat.maps[MAP_BRDF].texture = GenTextureBRDF(shdrBRDF, BRDF_SIZE); UnloadTexture(cubemap); UnloadTexture(texHDR); - + // Unload already used shaders (to create specific textures) UnloadShader(shdrCubemap); UnloadShader(shdrIrradiance); UnloadShader(shdrPrefilter); UnloadShader(shdrBRDF); - + // Set textures filtering for better quality SetTextureFilter(mat.maps[MAP_ALBEDO].texture, FILTER_BILINEAR); SetTextureFilter(mat.maps[MAP_NORMAL].texture, FILTER_BILINEAR); SetTextureFilter(mat.maps[MAP_METALNESS].texture, FILTER_BILINEAR); SetTextureFilter(mat.maps[MAP_ROUGHNESS].texture, FILTER_BILINEAR); SetTextureFilter(mat.maps[MAP_OCCLUSION].texture, FILTER_BILINEAR); - + // Enable sample usage in shader for assigned textures SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "albedo.useSampler"), (int[1]){ 1 }, UNIFORM_INT); SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "normals.useSampler"), (int[1]){ 1 }, UNIFORM_INT); SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "metalness.useSampler"), (int[1]){ 1 }, UNIFORM_INT); SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "roughness.useSampler"), (int[1]){ 1 }, UNIFORM_INT); SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "occlusion.useSampler"), (int[1]){ 1 }, UNIFORM_INT); - + int renderModeLoc = GetShaderLocation(mat.shader, "renderMode"); SetShaderValue(mat.shader, renderModeLoc, (int[1]){ 0 }, UNIFORM_INT); |