convert submodules to normal folders for now

raylib/examples/shaders/shaders_simple_mask.c

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+/*******************************************************************************************
+*
+*   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;
+}