RenderTexture2DArrayExample

Examples/RenderTexture2DArrayExample.cs

@@ -0,0 +1,92 @@
+using System;
+using MoonWorks;
+using MoonWorks.Graphics;
+using MoonWorks.Input;
+
+namespace MoonWorksGraphicsTests;
+
+class RenderTexture2DArrayExample : Example
+{
+	private Texture RenderTarget;
+
+	private float t;
+	private Color[] colors =
+    [
+        Color.Red,
+		Color.Green,
+		Color.Blue,
+	];
+
+    public override void Init(Window window, GraphicsDevice graphicsDevice, Inputs inputs)
+    {
+		Window = window;
+		GraphicsDevice = graphicsDevice;
+
+		RenderTarget = Texture.CreateTexture2DArray(
+			GraphicsDevice,
+			16,
+			16,
+			(uint) colors.Length,
+			TextureFormat.R8G8B8A8,
+			TextureUsageFlags.ColorTarget | TextureUsageFlags.Sampler
+		);
+
+		CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
+
+		// Clear each depth slice of the RT to a different color
+		for (uint i = 0; i < colors.Length; i += 1)
+		{
+			ColorAttachmentInfo attachmentInfo = new ColorAttachmentInfo
+			{
+				TextureSlice = new TextureSlice
+				{
+					Texture = RenderTarget,
+					Layer = i,
+					MipLevel = 0
+				},
+				ClearColor = colors[i],
+				LoadOp = LoadOp.Clear,
+				StoreOp = StoreOp.Store
+			};
+
+			var renderPass = cmdbuf.BeginRenderPass(attachmentInfo);
+			cmdbuf.EndRenderPass(renderPass);
+		}
+
+		GraphicsDevice.Submit(cmdbuf);
+	}
+
+	public override void Update(System.TimeSpan delta) { }
+
+	public override void Draw(double alpha)
+	{
+		t += 0.01f;
+		t %= 3;
+
+		CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
+		Texture swapchainTexture = cmdbuf.AcquireSwapchainTexture(Window);
+		if (swapchainTexture != null)
+		{
+			cmdbuf.Blit(
+				new TextureRegion
+				{
+					TextureSlice = new TextureSlice
+					{
+						Texture = RenderTarget,
+						Layer = (uint) MathF.Floor(t)
+					},
+					Depth = 1
+				},
+				swapchainTexture,
+				Filter.Nearest,
+				false
+			);
+		}
+		GraphicsDevice.Submit(cmdbuf);
+	}
+
+    public override void Destroy()
+    {
+        RenderTarget.Dispose();
+    }
+}

Examples/RenderTexture2DArrayGame.cs

@@ -1,139 +0,0 @@
-using System;
-using MoonWorks.Graphics;
-using MoonWorks.Math.Float;
-
-namespace MoonWorks.Test
-{
-	class RenderTexture2DArrayGame : Game
-	{
-		private GraphicsPipeline pipeline;
-		private GpuBuffer vertexBuffer;
-		private GpuBuffer indexBuffer;
-		private Texture rt;
-		private Sampler sampler;
-
-		private float t;
-		private Color[] colors = new Color[]
-		{
-			Color.Red,
-			Color.Green,
-			Color.Blue,
-		};
-
-		struct FragUniform
-		{
-			public float Depth;
-
-			public FragUniform(float depth)
-			{
-				Depth = depth;
-			}
-		}
-
-		public RenderTexture2DArrayGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.PreferredBackends, 60, true)
-		{
-			// Load the shaders
-			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad.vert"));
-			ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad2DArray.frag"));
-
-			// Create the graphics pipeline
-			GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
-				MainWindow.SwapchainFormat,
-				vertShaderModule,
-				fragShaderModule
-			);
-			pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionTextureVertex>();
-			pipelineCreateInfo.FragmentShaderInfo = GraphicsShaderInfo.Create<FragUniform>(fragShaderModule, "main", 1);
-			pipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
-
-			// Create samplers
-			sampler = new Sampler(GraphicsDevice, SamplerCreateInfo.PointWrap);
-
-			// Create and populate the GPU resources
-			var resourceUploader = new ResourceUploader(GraphicsDevice);
-
-			vertexBuffer = resourceUploader.CreateBuffer(
-				[
-					new PositionTextureVertex(new Vector3(-1, -1, 0), new Vector2(0, 0)),
-					new PositionTextureVertex(new Vector3(1, -1, 0), new Vector2(1, 0)),
-					new PositionTextureVertex(new Vector3(1, 1, 0), new Vector2(1, 1)),
-					new PositionTextureVertex(new Vector3(-1, 1, 0), new Vector2(0, 1)),
-				],
-				BufferUsageFlags.Vertex
-			);
-
-			indexBuffer = resourceUploader.CreateBuffer<ushort>(
-				[
-					0, 1, 2,
-					0, 2, 3,
-				],
-				BufferUsageFlags.Index
-			);
-
-			resourceUploader.Upload();
-			resourceUploader.Dispose();
-
-			rt = Texture.CreateTexture2DArray(
-				GraphicsDevice,
-				16,
-				16,
-				(uint) colors.Length,
-				TextureFormat.R8G8B8A8,
-				TextureUsageFlags.ColorTarget | TextureUsageFlags.Sampler
-			);
-
-			CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-
-			// Clear each depth slice of the RT to a different color
-			for (uint i = 0; i < colors.Length; i += 1)
-			{
-				ColorAttachmentInfo attachmentInfo = new ColorAttachmentInfo
-				{
-					TextureSlice = new TextureSlice
-					{
-						Texture = rt,
-						Layer = i,
-						MipLevel = 0
-					},
-					ClearColor = colors[i],
-					LoadOp = LoadOp.Clear,
-					StoreOp = StoreOp.Store
-				};
-				cmdbuf.BeginRenderPass(attachmentInfo);
-				cmdbuf.EndRenderPass();
-			}
-
-			GraphicsDevice.Submit(cmdbuf);
-		}
-
-		protected override void Update(System.TimeSpan delta) { }
-
-		protected override void Draw(double alpha)
-		{
-			t += 0.01f;
-			t %= 3;
-			FragUniform fragUniform = new FragUniform(MathF.Floor(t));
-
-			CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-			Texture? backbuffer = cmdbuf.AcquireSwapchainTexture(MainWindow);
-			if (backbuffer != null)
-			{
-				cmdbuf.BeginRenderPass(new ColorAttachmentInfo(backbuffer, WriteOptions.Cycle, Color.Black));
-				cmdbuf.BindGraphicsPipeline(pipeline);
-				cmdbuf.BindVertexBuffers(vertexBuffer);
-				cmdbuf.BindIndexBuffer(indexBuffer, IndexElementSize.Sixteen);
-				cmdbuf.BindFragmentSamplers(new TextureSamplerBinding(rt, sampler));
-				cmdbuf.PushFragmentShaderUniforms(fragUniform);
-				cmdbuf.DrawIndexedPrimitives(0, 0, 2);
-				cmdbuf.EndRenderPass();
-			}
-			GraphicsDevice.Submit(cmdbuf);
-		}
-
-		public static void Main(string[] args)
-		{
-			RenderTexture2DArrayGame game = new RenderTexture2DArrayGame();
-			game.Run();
-		}
-	}
-}

MoonWorksGraphicsTests.csproj

@@ -40,6 +40,7 @@
 		<Compile Include="Examples\InstancingAndOffsetsExample.cs" />
 		<Compile Include="Examples\MSAACubeExample.cs" />
 		<Compile Include="Examples\MSAAExample.cs" />
+		<Compile Include="Examples\RenderTexture2DArrayExample.cs" />
 	</ItemGroup>
 
 	<Import Project=".\CopyMoonlibs.targets" />

Program.cs

@@ -23,7 +23,8 @@ class Program : Game
 		new GetBufferDataExample(),
 		new InstancingAndOffsetsExample(),
 		new MSAACubeExample(),
-		new MSAAExample()
+		new MSAAExample(),
+		new RenderTexture2DArrayExample()
 	];
 
 	int ExampleIndex = 0;