MoonWorksGraphicsTests/InstancingAndOffsets/InstancingAndOffsetsGame.cs

106 lines
3.4 KiB
C#

using MoonWorks;
using MoonWorks.Graphics;
using MoonWorks.Math.Float;
namespace MoonWorks.Test
{
class InstancingAndOffsetsGame : Game
{
private GraphicsPipeline pipeline;
private GpuBuffer vertexBuffer;
private GpuBuffer indexBuffer;
private bool useVertexOffset;
private bool useIndexOffset;
public InstancingAndOffsetsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.PreferredBackends, 60, true)
{
Logger.LogInfo("Press Left to toggle vertex offset\nPress Right to toggle index offset");
// Load the shaders
ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("PositionColorInstanced.vert"));
ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("SolidColor.frag"));
// Create the graphics pipeline
GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
MainWindow.SwapchainFormat,
vertShaderModule,
fragShaderModule
);
pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionColorVertex>();
pipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
// Create and populate the vertex and index buffers
var resourceUploader = new ResourceUploader(GraphicsDevice);
vertexBuffer = resourceUploader.CreateBuffer(
[
new PositionColorVertex(new Vector3(-1, 1, 0), Color.Red),
new PositionColorVertex(new Vector3(1, 1, 0), Color.Lime),
new PositionColorVertex(new Vector3(0, -1, 0), Color.Blue),
new PositionColorVertex(new Vector3(-1, 1, 0), Color.Orange),
new PositionColorVertex(new Vector3(1, 1, 0), Color.Green),
new PositionColorVertex(new Vector3(0, -1, 0), Color.Aqua),
new PositionColorVertex(new Vector3(-1, 1, 0), Color.White),
new PositionColorVertex(new Vector3(1, 1, 0), Color.White),
new PositionColorVertex(new Vector3(0, -1, 0), Color.White),
],
BufferUsageFlags.Vertex
);
indexBuffer = resourceUploader.CreateBuffer<ushort>(
[
0, 1, 2,
3, 4, 5,
],
BufferUsageFlags.Index
);
resourceUploader.Upload();
resourceUploader.Dispose();
}
protected override void Update(System.TimeSpan delta)
{
if (TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Left))
{
useVertexOffset = !useVertexOffset;
Logger.LogInfo("Using vertex offset: " + useVertexOffset);
}
if (TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Right))
{
useIndexOffset = !useIndexOffset;
Logger.LogInfo("Using index offset: " + useIndexOffset);
}
}
protected override void Draw(double alpha)
{
uint vertexOffset = useVertexOffset ? 3u : 0;
uint indexOffset = useIndexOffset ? 3u : 0;
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.DrawInstancedPrimitives(vertexOffset, indexOffset, 1, 16);
cmdbuf.EndRenderPass();
}
GraphicsDevice.Submit(cmdbuf);
}
public static void Main(string[] args)
{
InstancingAndOffsetsGame p = new InstancingAndOffsetsGame();
p.Run();
}
}
}