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Diffstat (limited to 'deps/raylib/examples/shaders/shaders_simple_mask.c')
-rw-r--r-- | deps/raylib/examples/shaders/shaders_simple_mask.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/deps/raylib/examples/shaders/shaders_simple_mask.c b/deps/raylib/examples/shaders/shaders_simple_mask.c new file mode 100644 index 0000000..11e0ac2 --- /dev/null +++ b/deps/raylib/examples/shaders/shaders_simple_mask.c @@ -0,0 +1,150 @@ +/******************************************************************************************* +* +* raylib [shaders] example - Simple shader mask +* +* Example originally created with raylib 2.5, last time updated with raylib 3.7 +* +* Example contributed by Chris Camacho (@chriscamacho) and reviewed by Ramon Santamaria (@raysan5) +* +* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified, +* BSD-like license that allows static linking with closed source software +* +* Copyright (c) 2019-2024 Chris Camacho (@chriscamacho) and Ramon Santamaria (@raysan5) +* +******************************************************************************************** +* +* After a model is loaded it has a default material, this material can be +* modified in place rather than creating one from scratch... +* While all of the maps have particular names, they can be used for any purpose +* except for three maps that are applied as cubic maps (see below) +* +********************************************************************************************/ + +#include "raylib.h" +#include "raymath.h" + +#if defined(PLATFORM_DESKTOP) + #define GLSL_VERSION 330 +#else // PLATFORM_ANDROID, PLATFORM_WEB + #define GLSL_VERSION 100 +#endif + +//------------------------------------------------------------------------------------ +// Program main entry point +//------------------------------------------------------------------------------------ +int main(void) +{ + // Initialization + //-------------------------------------------------------------------------------------- + const int screenWidth = 800; + const int screenHeight = 450; + + InitWindow(screenWidth, screenHeight, "raylib [shaders] example - simple shader mask"); + + // Define the camera to look into our 3d world + Camera camera = { 0 }; + camera.position = (Vector3){ 0.0f, 1.0f, 2.0f }; // Camera position + camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point + camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target) + camera.fovy = 45.0f; // Camera field-of-view Y + camera.projection = CAMERA_PERSPECTIVE; // Camera projection type + + // Define our three models to show the shader on + Mesh torus = GenMeshTorus(0.3f, 1, 16, 32); + Model model1 = LoadModelFromMesh(torus); + + Mesh cube = GenMeshCube(0.8f,0.8f,0.8f); + Model model2 = LoadModelFromMesh(cube); + + // Generate model to be shaded just to see the gaps in the other two + Mesh sphere = GenMeshSphere(1, 16, 16); + Model model3 = LoadModelFromMesh(sphere); + + // Load the shader + Shader shader = LoadShader(0, TextFormat("resources/shaders/glsl%i/mask.fs", GLSL_VERSION)); + + // Load and apply the diffuse texture (colour map) + Texture texDiffuse = LoadTexture("resources/plasma.png"); + model1.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = texDiffuse; + model2.materials[0].maps[MATERIAL_MAP_DIFFUSE].texture = texDiffuse; + + // Using MATERIAL_MAP_EMISSION as a spare slot to use for 2nd texture + // NOTE: Don't use MATERIAL_MAP_IRRADIANCE, MATERIAL_MAP_PREFILTER or MATERIAL_MAP_CUBEMAP as they are bound as cube maps + Texture texMask = LoadTexture("resources/mask.png"); + model1.materials[0].maps[MATERIAL_MAP_EMISSION].texture = texMask; + model2.materials[0].maps[MATERIAL_MAP_EMISSION].texture = texMask; + shader.locs[SHADER_LOC_MAP_EMISSION] = GetShaderLocation(shader, "mask"); + + // Frame is incremented each frame to animate the shader + int shaderFrame = GetShaderLocation(shader, "frame"); + + // Apply the shader to the two models + model1.materials[0].shader = shader; + model2.materials[0].shader = shader; + + int framesCounter = 0; + Vector3 rotation = { 0 }; // Model rotation angles + + DisableCursor(); // Limit cursor to relative movement inside the window + SetTargetFPS(60); // Set to run at 60 frames-per-second + //-------------------------------------------------------------------------------------- + + // Main game loop + while (!WindowShouldClose()) // Detect window close button or ESC key + { + // Update + //---------------------------------------------------------------------------------- + UpdateCamera(&camera, CAMERA_FIRST_PERSON); + + framesCounter++; + rotation.x += 0.01f; + rotation.y += 0.005f; + rotation.z -= 0.0025f; + + // Send frames counter to shader for animation + SetShaderValue(shader, shaderFrame, &framesCounter, SHADER_UNIFORM_INT); + + // Rotate one of the models + model1.transform = MatrixRotateXYZ(rotation); + //---------------------------------------------------------------------------------- + + // Draw + //---------------------------------------------------------------------------------- + BeginDrawing(); + + ClearBackground(DARKBLUE); + + BeginMode3D(camera); + + DrawModel(model1, (Vector3){ 0.5f, 0.0f, 0.0f }, 1, WHITE); + DrawModelEx(model2, (Vector3){ -0.5f, 0.0f, 0.0f }, (Vector3){ 1.0f, 1.0f, 0.0f }, 50, (Vector3){ 1.0f, 1.0f, 1.0f }, WHITE); + DrawModel(model3,(Vector3){ 0.0f, 0.0f, -1.5f }, 1, WHITE); + DrawGrid(10, 1.0f); // Draw a grid + + EndMode3D(); + + DrawRectangle(16, 698, MeasureText(TextFormat("Frame: %i", framesCounter), 20) + 8, 42, BLUE); + DrawText(TextFormat("Frame: %i", framesCounter), 20, 700, 20, WHITE); + + DrawFPS(10, 10); + + EndDrawing(); + //---------------------------------------------------------------------------------- + } + + // De-Initialization + //-------------------------------------------------------------------------------------- + UnloadModel(model1); + UnloadModel(model2); + UnloadModel(model3); + + UnloadTexture(texDiffuse); // Unload default diffuse texture + UnloadTexture(texMask); // Unload texture mask + + UnloadShader(shader); // Unload shader + + CloseWindow(); // Close window and OpenGL context + //-------------------------------------------------------------------------------------- + + return 0; +} |