65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package main
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import (
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"github.com/gen2brain/raylib-go/raylib"
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)
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func main() {
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screenWidth := int32(800)
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screenHeight := int32(450)
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rl.InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing")
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camera := rl.Camera{}
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camera.Position = rl.NewVector3(18.0, 16.0, 18.0)
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camera.Target = rl.NewVector3(0.0, 0.0, 0.0)
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camera.Up = rl.NewVector3(0.0, 1.0, 0.0)
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camera.Fovy = 45.0
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image := rl.LoadImage("heightmap.png") // Load heightmap image (RAM)
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texture := rl.LoadTextureFromImage(image) // Convert image to texture (VRAM)
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mesh := rl.GenMeshHeightmap(*image, rl.NewVector3(16, 8, 16)) // Generate heightmap mesh (RAM and VRAM)
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model := rl.LoadModelFromMesh(mesh) // Load model from generated mesh
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model.Material.Maps[rl.MapDiffuse].Texture = texture // Set map diffuse texture
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mapPosition := rl.NewVector3(-8.0, 0.0, -8.0) // Set model position
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rl.UnloadImage(image) // Unload heightmap image from RAM, already uploaded to VRAM
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rl.SetCameraMode(camera, rl.CameraOrbital) // Set an orbital camera mode
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rl.SetTargetFPS(60)
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for !rl.WindowShouldClose() {
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// Update
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rl.UpdateCamera(&camera) // Update camera
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// Draw
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rl.BeginDrawing()
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rl.ClearBackground(rl.RayWhite)
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rl.BeginMode3D(camera)
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rl.DrawModel(model, mapPosition, 1.0, rl.Red)
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rl.DrawGrid(20, 1.0)
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rl.EndMode3D()
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rl.DrawTexture(texture, screenWidth-texture.Width-20, 20, rl.White)
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rl.DrawRectangleLines(screenWidth-texture.Width-20, 20, texture.Width, texture.Height, rl.Green)
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rl.DrawFPS(10, 10)
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rl.EndDrawing()
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}
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rl.UnloadTexture(texture) // Unload map texture
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rl.UnloadModel(model) // Unload map model
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rl.CloseWindow()
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}
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