chore: clean recommit

Examples/Shaders/VertexDisplacement.cs

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+/*******************************************************************************************
+*
+*   raylib [shaders] example - vertex displacement
+*
+*   Example complexity rating: [★★★☆] 3/4
+*
+*   Example originally created with raylib 5.0, last time updated with raylib 4.5
+*
+*   Example contributed by Alex ZH (@ZzzhHe) 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) 2023-2025 Alex ZH (@ZzzhHe)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+using static Raylib_cs.Rlgl;
+
+namespace Examples.Shaders;
+
+public partial class VertexDisplacement : IExample
+{
+    private const int screenWidth = 800;
+    private const int screenHeight = 450;
+
+#if BROWSER
+    const int GlslVersion = 100;    // WebGL1 needs GLSL ES 100
+#else
+    private const int GlslVersion = 330;
+#endif
+
+    public string Name => "Shaders / Vertex Displacement";
+
+    public string Title => "raylib [shaders] example - vertex displacement";
+
+    private Camera3D camera;
+    private Shader shader;
+    private Texture2D perlinNoiseMap;
+    private Model planeModel;
+    private float time;
+
+    public unsafe void Init()
+    {
+        // set up camera
+        camera = new();
+        camera.Position = new Vector3(20.0f, 5.0f, -20.0f);
+        camera.Target = new Vector3(0.0f, 0.0f, 0.0f);
+        camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
+        camera.FovY = 60.0f;
+        camera.Projection = CameraProjection.Perspective;
+
+        // Load vertex and fragment shaders
+        shader = LoadShader(
+            $"resources/shaders/glsl{GlslVersion}/vertex_displacement.vs",
+            $"resources/shaders/glsl{GlslVersion}/vertex_displacement.fs"
+        );
+
+        // Load perlin noise texture
+        var perlinNoiseImage = GenImagePerlinNoise(512, 512, 0, 0, 1.0f);
+        perlinNoiseMap = LoadTextureFromImage(perlinNoiseImage);
+        UnloadImage(perlinNoiseImage);
+
+        // Set shader uniform location
+        var perlinNoiseMapLoc = GetShaderLocation(shader, "perlinNoiseMap");
+        EnableShader(shader.Id);
+        ActiveTextureSlot(1);
+        EnableTexture(perlinNoiseMap.Id);
+        SetUniformSampler(perlinNoiseMapLoc, 1);
+
+        // Create a plane mesh and model
+        var planeMesh = GenMeshPlane(50, 50, 50, 50);
+        planeModel = LoadModelFromMesh(planeMesh);
+        // Set plane model material
+        var materials = planeModel.Materials;
+        materials[0].Shader = shader;
+
+        time = 0.0f;
+    }
+
+    public unsafe void Update()
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        UpdateCamera(ref camera, CameraMode.Free); // Update camera
+
+        time += GetFrameTime(); // Update time variable
+        Raylib.SetShaderValue(shader, GetShaderLocation(shader, "time"), time, ShaderUniformDataType.Float); // Send time value to shader
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+        ClearBackground(Color.RayWhite);
+
+        BeginMode3D(camera);
+
+        BeginShaderMode(shader);
+        // Draw plane model
+        DrawModel(planeModel, new Vector3(0.0f, 0.0f, 0.0f), 1.0f, new Color(255, 255, 255, 255));
+        EndShaderMode();
+
+        EndMode3D();
+
+        DrawText("Vertex displacement", 10, 10, 20, Color.DarkGray);
+        DrawFPS(10, 40);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    public void Unload()
+    {
+        UnloadShader(shader);
+        UnloadModel(planeModel);
+        UnloadTexture(perlinNoiseMap);
+    }
+
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        InitWindow(screenWidth, screenHeight, "raylib [shaders] example - vertex displacement");
+
+        SetTargetFPS(60);
+        //--------------------------------------------------------------------------------------
+
+        var game = new VertexDisplacement();
+        game.Init();
+
+        // Main game loop
+        while (!WindowShouldClose())    // Detect window close button or ESC key
+        {
+            game.Update();
+        }
+
+        game.Unload();
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        CloseWindow();        // Close window and OpenGL context
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}