Initial commit

examples/models/heightmap/main.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(18.0, 16.0, 18.0)
+	camera.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	image := raylib.LoadImage("heightmap.png")                        // Load heightmap image (RAM)
+	texture := raylib.LoadTextureFromImage(image)                     // Convert image to texture (VRAM)
+	hmap := raylib.LoadHeightmap(image, raylib.NewVector3(16, 8, 16)) // Load heightmap model with defined size
+	hmap.Material.TexDiffuse = texture                                // Set map diffuse texture
+	mapPosition := raylib.NewVector3(-8.0, 0.0, -8.0)                 // Set model position
+
+	raylib.UnloadImage(image) // Unload cubesmap image from RAM, already uploaded to VRAM
+
+	raylib.SetCameraMode(camera, raylib.CameraOrbital) // Set an orbital camera mode
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		// Update
+
+		raylib.UpdateCamera(&camera) // Update camera
+
+		// Draw
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		// NOTE: Model is scaled to 1/4 of its original size (128x128 units)
+		raylib.DrawModel(hmap, mapPosition, 1.0, raylib.Red)
+
+		raylib.DrawGrid(20, 1.0)
+
+		raylib.End3dMode()
+
+		raylib.DrawTexture(texture, screenWidth-texture.Width-20, 20, raylib.White)
+		raylib.DrawRectangleLines(screenWidth-texture.Width-20, 20, texture.Width, texture.Height, raylib.Green)
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(texture) // Unload map texture
+	raylib.UnloadModel(hmap)      // Unload map model
+
+	raylib.CloseWindow()
+}