Initial commit

examples/shaders/standard_lighting/main.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.SetConfigFlags(raylib.FlagMsaa4xHint | raylib.FlagVsyncHint) // Enable Multi Sampling Anti Aliasing 4x (if available)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [shaders] example - model shader")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(4.0, 4.0, 4.0)
+	camera.Target = raylib.NewVector3(0.0, 1.5, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	position := raylib.NewVector3(0.0, 0.0, 0.0) // Set model position
+
+	dwarf := raylib.LoadModel("dwarf.obj") // Load OBJ model
+
+	material := raylib.LoadStandardMaterial()
+
+	material.TexDiffuse = raylib.LoadTexture("dwarf_diffuse.png")   // Load model diffuse texture
+	material.TexNormal = raylib.LoadTexture("dwarf_normal.png")     // Load model normal texture
+	material.TexSpecular = raylib.LoadTexture("dwarf_specular.png") // Load model specular texture
+	material.ColDiffuse = raylib.White
+	material.ColAmbient = raylib.NewColor(0, 0, 10, 255)
+	material.ColSpecular = raylib.White
+	material.Glossiness = 50.0
+
+	dwarf.Material = material // Apply material to model
+
+	spotLight := raylib.CreateLight(raylib.LightSpot, raylib.NewVector3(3.0, 5.0, 2.0), raylib.NewColor(255, 255, 255, 255))
+	spotLight.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	spotLight.Intensity = 2.0
+	spotLight.Diffuse = raylib.NewColor(255, 100, 100, 255)
+	spotLight.ConeAngle = 60.0
+
+	dirLight := raylib.CreateLight(raylib.LightDirectional, raylib.NewVector3(0.0, -3.0, -3.0), raylib.NewColor(255, 255, 255, 255))
+	dirLight.Target = raylib.NewVector3(1.0, -2.0, -2.0)
+	dirLight.Intensity = 2.0
+	dirLight.Diffuse = raylib.NewColor(100, 255, 100, 255)
+
+	pointLight := raylib.CreateLight(raylib.LightPoint, raylib.NewVector3(0.0, 4.0, 5.0), raylib.NewColor(255, 255, 255, 255))
+	pointLight.Intensity = 2.0
+	pointLight.Diffuse = raylib.NewColor(100, 100, 255, 255)
+	pointLight.Radius = 3.0
+
+	// Setup orbital camera
+	raylib.SetCameraMode(camera, raylib.CameraOrbital) // Set an orbital camera mode
+
+	//raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		raylib.UpdateCamera(&camera) // Update camera
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawModel(dwarf, position, 2.0, raylib.White) // Draw 3d model with texture
+
+		raylib.DrawLight(spotLight)  // Draw spot light
+		raylib.DrawLight(dirLight)   // Draw directional light
+		raylib.DrawLight(pointLight) // Draw point light
+
+		raylib.DrawGrid(10, 1.0) // Draw a grid
+
+		raylib.End3dMode()
+
+		raylib.DrawText("(c) Dwarf 3D model by David Moreno", screenWidth-200, screenHeight-20, 10, raylib.Gray)
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadMaterial(material) // Unload material and assigned textures
+	raylib.UnloadModel(dwarf)       // Unload model
+
+	// Destroy all created lights
+	raylib.DestroyLight(pointLight)
+	raylib.DestroyLight(dirLight)
+	raylib.DestroyLight(spotLight)
+
+	raylib.CloseWindow()
+}