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Update shaders_basic_pbr.c

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Ray 2023-12-23 13:32:47 +01:00
parent 7ca95512d8
commit 706f74bce0
1 changed files with 34 additions and 34 deletions
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68
examples/shaders/shaders_basic_pbr.c
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@ -37,23 +37,6 @@
// Types and Structures Definition
//----------------------------------------------------------------------------------
// Light data
typedef struct {
int enabled;
int type;
Vector3 position;
Vector3 target;
float color[4];
float intensity;
int enabledLoc;
int typeLoc;
int positionLoc;
int targetLoc;
int colorLoc;
int intensityLoc;
} Light;
// Light type
typedef enum {
LIGHT_DIRECTIONAL = 0,
@ -61,6 +44,24 @@ typedef enum {
LIGHT_SPOT
} LightType;
// Light data
typedef struct {
int type;
int enabled;
Vector3 position;
Vector3 target;
float color[4];
float intensity;
// Shader light parameters locations
int typeLoc;
int enabledLoc;
int positionLoc;
int targetLoc;
int colorLoc;
int intensityLoc;
} Light;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
@ -119,16 +120,13 @@ int main()
SetShaderValue(shader, lightCountLoc, &maxLightCount, SHADER_UNIFORM_INT);
// Setup ambient color and intensity parameters
float ambientIntensity = 0.02f;
Color ambientColor = (Color){ 26, 32, 135, 255 };
Vector3 ambientColorNormalized = (Vector3){ ambientColor.r/255.0f, ambientColor.g/255.0f, ambientColor.b/255.0f };
float ambientIntensity = 0.02;
int albedoLoc = GetShaderLocation(shader, "albedo");
int ambientColorLoc = GetShaderLocation(shader, "ambientColor");
int ambientLoc = GetShaderLocation(shader, "ambient");
SetShaderValue(shader, ambientColorLoc, &ambientColorNormalized, SHADER_UNIFORM_VEC3);
SetShaderValue(shader, ambientLoc, &ambientIntensity, SHADER_UNIFORM_FLOAT);
SetShaderValue(shader, GetShaderLocation(shader, "ambientColor"), &ambientColorNormalized, SHADER_UNIFORM_VEC3);
SetShaderValue(shader, GetShaderLocation(shader, "ambient"), &ambientIntensity, SHADER_UNIFORM_FLOAT);
// Get location for shader parameters that can be modified in real time
int emissiveIntensityLoc = GetShaderLocation(shader, "emissivePower");
int emissiveColorLoc = GetShaderLocation(shader, "emissiveColor");
int textureTilingLoc = GetShaderLocation(shader, "tiling");
@ -156,12 +154,12 @@ int main()
car.materials[0].maps[MATERIAL_MAP_NORMAL].texture = LoadTexture("resources/old_car_n.png");
car.materials[0].maps[MATERIAL_MAP_EMISSION].texture = LoadTexture("resources/old_car_e.png");
// Old car model texture tiling parameter can be stored in the Material struct if required (CURRENTLY NOT USED)
// NOTE: Material.params[4] are available for generic parameters storage (float)
Vector2 carTextureTiling = (Vector2){ 0.5f, 0.5f };
// Load floor model mesh and assign material parameters
// NOTE: A basic plane shape can be generated instead of being loaded from a model file
Model floor = LoadModel("resources/models/plane.glb");
//Mesh floorMesh = GenMeshPlane(10, 10, 10, 10);
//GenMeshTangents(&floorMesh); // TODO: Review tangents generation
//Model floor = LoadModelFromMesh(floorMesh);
// Assign material shader for our floor model, same PBR shader
floor.materials[0].shader = shader;
@ -176,7 +174,9 @@ int main()
floor.materials[0].maps[MATERIAL_MAP_METALNESS].texture = LoadTexture("resources/road_mra.png");
floor.materials[0].maps[MATERIAL_MAP_NORMAL].texture = LoadTexture("resources/road_n.png");
// Floor texture tiling parameter
// Models texture tiling parameter can be stored in the Material struct if required (CURRENTLY NOT USED)
// NOTE: Material.params[4] are available for generic parameters storage (float)
Vector2 carTextureTiling = (Vector2){ 0.5f, 0.5f };
Vector2 floorTextureTiling = (Vector2){ 0.5f, 0.5f };
// Create some lights
@ -209,10 +209,10 @@ int main()
SetShaderValue(shader, shader.locs[SHADER_LOC_VECTOR_VIEW], cameraPos, SHADER_UNIFORM_VEC3);
// Check key inputs to enable/disable lights
if (IsKeyPressed(KEY_Y)) { lights[0].enabled = !lights[0].enabled; }
if (IsKeyPressed(KEY_G)) { lights[1].enabled = !lights[1].enabled; }
if (IsKeyPressed(KEY_R)) { lights[2].enabled = !lights[2].enabled; }
if (IsKeyPressed(KEY_B)) { lights[3].enabled = !lights[3].enabled; }
if (IsKeyPressed(KEY_ONE)) { lights[2].enabled = !lights[2].enabled; }
if (IsKeyPressed(KEY_TWO)) { lights[1].enabled = !lights[1].enabled; }
if (IsKeyPressed(KEY_THREE)) { lights[3].enabled = !lights[3].enabled; }
if (IsKeyPressed(KEY_FOUR)) { lights[0].enabled = !lights[0].enabled; }
// Update light values on shader (actually, only enable/disable them)
for (int i = 0; i < MAX_LIGHTS; i++) UpdateLight(shader, lights[i]);
@ -253,7 +253,7 @@ int main()
EndMode3D();
DrawText("Toggle lights: [Y][R][G][B]", 10, 40, 20, LIGHTGRAY);
DrawText("Toggle lights: [1][2][3][4]", 10, 40, 20, LIGHTGRAY);
DrawText("(c) Old Rusty Car model by Renafox (https://skfb.ly/LxRy)", screenWidth - 320, screenHeight - 20, 10, LIGHTGRAY);