121 lines
4.4 KiB
C#
121 lines
4.4 KiB
C#
/*******************************************************************************************
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*
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* raylib [models] example - heightmap rendering
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*
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* Example complexity rating: [★☆☆☆] 1/4
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*
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* Example originally created with raylib 1.8, last time updated with raylib 3.5
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*
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2015-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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using System.Numerics;
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using static Raylib_cs.Raylib;
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namespace Examples.Models;
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public partial class HeightmapDemo : IExample
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{
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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public string Name => "Models / Heightmap Demo";
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public string Title => "raylib [models] example - heightmap rendering";
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private Camera3D camera;
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private Texture2D texture;
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private Model model;
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private Vector3 mapPosition;
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public void Init()
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{
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// Define our custom camera to look into our 3d world
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camera = new();
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camera.Position = new Vector3(18.0f, 21.0f, 18.0f); // Camera position
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camera.Target = new Vector3(0.0f, 0.0f, 0.0f); // Camera looking at point
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camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
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camera.FovY = 45.0f; // Camera field-of-view Y
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camera.Projection = CameraProjection.Perspective; // Camera projection type
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var image = LoadImage("resources/heightmap.png"); // Load heightmap image (RAM)
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texture = LoadTextureFromImage(image); // Convert image to texture (VRAM)
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var mesh = GenMeshHeightmap(image, new Vector3(16, 8, 16)); // Generate heightmap mesh (RAM and VRAM)
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model = LoadModelFromMesh(mesh); // Load model from generated mesh
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// Set map diffuse texture
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Raylib.SetMaterialTexture(ref model, 0, MaterialMapIndex.Albedo, ref texture);
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mapPosition = new(-8.0f, 0.0f, -8.0f); // Define model position
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UnloadImage(image); // Unload heightmap image from RAM, already uploaded to VRAM
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}
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(ref camera, CameraMode.Orbital);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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BeginMode3D(camera);
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DrawModel(model, mapPosition, 1.0f, Color.Red);
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DrawGrid(20, 1.0f);
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EndMode3D();
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DrawTexture(texture, screenWidth - texture.Width - 20, 20, Color.White);
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DrawRectangleLines(screenWidth - texture.Width - 20, 20, texture.Width, texture.Height, Color.Green);
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DrawFPS(10, 10);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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public void Unload()
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{
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UnloadTexture(texture); // Unload texture
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UnloadModel(model); // Unload model
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}
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public static int Main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap rendering");
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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var game = new HeightmapDemo();
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game.Init();
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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game.Update();
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}
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game.Unload();
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// De-Initialization
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//--------------------------------------------------------------------------------------
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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}
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