private void refreshResources()
{
closeExistingResources();
if (material == null || model == null || cs == null || context == null)
{
return;
}
ct = new MycomputeShader(cs);
traceDisposable(ct.ComputeTask);
BufferDescription bd = new BufferDescription();
bd.CpuAccess = ResourceCpuAccess.None;
bd.Usage = ResourceUsage.Default;
bd.Flags = BufferFlags.ShaderResource | BufferFlags.UnorderedAccess | BufferFlags.BufferStructured;
bd.StructureByteStride = 12;
bd.SizeInBytes = (uint)(tmp.Length * bd.StructureByteStride);
dataBuffer = context.Factory.CreateBuffer <Vector3>(null, ref bd);
ct.Time = 2f;
ct.Stride = 8;
ct.Data = dataBuffer;
//Buffer=
//ct.TextureSlots
}
protected override async void InternalLoad()
{
var swapChainDescription = this.swapChain?.SwapChainDescription;
this.width = swapChainDescription.Value.Width;
this.height = swapChainDescription.Value.Height;
// Create Scene
BasicScene();
// Compute Resources
var spheresBufferDescription = new BufferDescription(
(uint)(Unsafe.SizeOf <Sphere>() * spheres.Length),
BufferFlags.UnorderedAccess | BufferFlags.ShaderResource | BufferFlags.BufferStructured,
ResourceUsage.Default,
ResourceCpuAccess.None,
Unsafe.SizeOf <Sphere>());
spheresBuffer = this.graphicsContext.Factory.CreateBuffer(spheres, ref spheresBufferDescription);
var materialsBufferDescription = new BufferDescription(
(uint)(Unsafe.SizeOf <Material>() * spheres.Length),
BufferFlags.UnorderedAccess | BufferFlags.ShaderResource | BufferFlags.BufferStructured,
ResourceUsage.Default,
ResourceCpuAccess.None,
Unsafe.SizeOf <Material>());
materialsBuffer = this.graphicsContext.Factory.CreateBuffer(materials, ref materialsBufferDescription);
this.threadGroupX = this.width / 16u;
this.threadGroupY = this.height / 16u;
CompilerParameters parameters = new CompilerParameters()
{
CompilationMode = CompilationMode.None,
Profile = GraphicsProfile.Level_11_0,
};
var computeShaderDescription = await this.assetsDirectory.ReadAndCompileShader(this.graphicsContext, "CS", "ComputeShader", ShaderStages.Compute, "CS", parameters);
var computeShader = this.graphicsContext.Factory.CreateShader(ref computeShaderDescription);
var textureDescription = new TextureDescription()
{
Type = TextureType.Texture2D,
Usage = ResourceUsage.Default,
Flags = TextureFlags.UnorderedAccess | TextureFlags.ShaderResource,
Format = PixelFormat.R8G8B8A8_UNorm,
Width = this.width,
Height = this.height,
Depth = 1,
MipLevels = 1,
ArraySize = 1,
CpuAccess = ResourceCpuAccess.None,
SampleCount = TextureSampleCount.None,
};
Texture texture2D = this.graphicsContext.Factory.CreateTexture(ref textureDescription);
this.computeData = new ComputeData()
{
time = 0,
width = this.width,
height = this.height,
framecount = 0,
samples = 25,
recursion = 5,
spherecount = (uint)spheres.Length,
cam = this.cam
};
var constantBufferDescription = new BufferDescription((uint)Unsafe.SizeOf <ComputeData>(), BufferFlags.ConstantBuffer, ResourceUsage.Default);
this.constantBuffer = this.graphicsContext.Factory.CreateBuffer(ref this.computeData, ref constantBufferDescription);
ResourceLayoutDescription computeLayoutDescription = new ResourceLayoutDescription(
new LayoutElementDescription(0, ResourceType.StructuredBuffer, ShaderStages.Compute),
new LayoutElementDescription(1, ResourceType.StructuredBuffer, ShaderStages.Compute),
new LayoutElementDescription(0, ResourceType.ConstantBuffer, ShaderStages.Compute),
new LayoutElementDescription(0, ResourceType.TextureReadWrite, ShaderStages.Compute));
ResourceLayout computeResourceLayout = this.graphicsContext.Factory.CreateResourceLayout(ref computeLayoutDescription);
ResourceSetDescription computeResourceSetDescription = new ResourceSetDescription(computeResourceLayout, this.spheresBuffer, this.materialsBuffer, this.constantBuffer, texture2D);
this.computeResourceSet = this.graphicsContext.Factory.CreateResourceSet(ref computeResourceSetDescription);
var computePipelineDescription = new ComputePipelineDescription()
{
ComputeShader = computeShader,
ResourceLayouts = new[] { computeResourceLayout },
ThreadGroupSizeX = 16,
ThreadGroupSizeY = 16,
ThreadGroupSizeZ = 1,
};
this.computePipelineState = this.graphicsContext.Factory.CreateComputePipeline(ref computePipelineDescription);
// Graphics Resources
var vertexShaderDescription = await this.assetsDirectory.ReadAndCompileShader(this.graphicsContext, "HLSL", "VertexShader", ShaderStages.Vertex, "VS");
var pixelShaderDescription = await this.assetsDirectory.ReadAndCompileShader(this.graphicsContext, "HLSL", "FragmentShader", ShaderStages.Pixel, "PS");
var vertexShader = this.graphicsContext.Factory.CreateShader(ref vertexShaderDescription);
var pixelShader = this.graphicsContext.Factory.CreateShader(ref pixelShaderDescription);
var samplerDescription = SamplerStates.LinearClamp;
var samplerState = this.graphicsContext.Factory.CreateSamplerState(ref samplerDescription);
// Set Params
this.paramsData.Samples = 1;
this.paramsData.IsPathTracing = false;
var paramsBufferDescription = new BufferDescription((uint)Unsafe.SizeOf <Params>(), BufferFlags.ConstantBuffer, ResourceUsage.Default);
this.paramsBuffer = this.graphicsContext.Factory.CreateBuffer(ref paramsBufferDescription);
ResourceLayoutDescription layoutDescription = new ResourceLayoutDescription(
new LayoutElementDescription(0, ResourceType.ConstantBuffer, ShaderStages.Pixel),
new LayoutElementDescription(0, ResourceType.Texture, ShaderStages.Pixel),
new LayoutElementDescription(0, ResourceType.Sampler, ShaderStages.Pixel));
ResourceLayout resourceLayout = this.graphicsContext.Factory.CreateResourceLayout(ref layoutDescription);
ResourceSetDescription resourceSetDescription = new ResourceSetDescription(resourceLayout, this.paramsBuffer, texture2D, samplerState);
this.resourceSet = this.graphicsContext.Factory.CreateResourceSet(ref resourceSetDescription);
BlendStateDescription blend = BlendStateDescription.Default;
if (this.paramsData.IsPathTracing)
{
blend.RenderTarget0.BlendEnable = true;
blend.RenderTarget0.SourceBlendColor = Blend.SourceAlpha;
blend.RenderTarget0.DestinationBlendColor = Blend.InverseSourceAlpha;
}
else
{
blend = BlendStates.Opaque;
}
var pipelineDescription = new GraphicsPipelineDescription()
{
PrimitiveTopology = PrimitiveTopology.TriangleList,
InputLayouts = null,
ResourceLayouts = new[] { resourceLayout },
Shaders = new ShaderStateDescription()
{
VertexShader = vertexShader,
PixelShader = pixelShader,
},
RenderStates = new RenderStateDescription()
{
RasterizerState = RasterizerStates.CullBack,
BlendState = blend,
DepthStencilState = DepthStencilStates.Read,
},
Outputs = this.frameBuffer.OutputDescription,
};
this.graphicsPipelineState = this.graphicsContext.Factory.CreateGraphicsPipeline(ref pipelineDescription);
this.graphicsCommandQueue = this.graphicsContext.Factory.CreateCommandQueue(CommandQueueType.Graphics);
this.computeCommandQueue = this.graphicsContext.Factory.CreateCommandQueue(CommandQueueType.Compute);
this.viewports = new Viewport[1];
this.viewports[0] = new Viewport(0, 0, this.width, this.height);
this.scissors = new Rectangle[1];
this.scissors[0] = new Rectangle(0, 0, (int)this.width, (int)this.height);
}
protected override async void InternalLoad()
{
// Compile Vertex and Pixel shaders
var vertexShaderDescription = await this.assetsDirectory.ReadAndCompileShader(this.graphicsContext, "HLSL", "VertexShader", ShaderStages.Vertex, "VS");
var pixelShaderDescription = await this.assetsDirectory.ReadAndCompileShader(this.graphicsContext, "HLSL", "FragmentShader", ShaderStages.Pixel, "PS");
var vertexShader = this.graphicsContext.Factory.CreateShader(ref vertexShaderDescription);
var pixelShader = this.graphicsContext.Factory.CreateShader(ref pixelShaderDescription);
var vertexBufferDescription = new BufferDescription((uint)Unsafe.SizeOf <VertexPositionNormalTexture>() * (uint)vertexData.Length, BufferFlags.VertexBuffer, ResourceUsage.Default);
var vertexBuffer = this.graphicsContext.Factory.CreateBuffer(vertexData, ref vertexBufferDescription);
this.view = Matrix4x4.CreateLookAt(new Vector3(0, 0, 4f), new Vector3(0, 0, 0), Vector3.UnitY);
this.proj = Matrix4x4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, (float)this.frameBuffer.Width / (float)this.frameBuffer.Height, 0.1f, 100f);
// Parameters
float density = 0.4f;
float minHairLength = 0.5f;
this.parameters = new Parameters();
this.parameters.displacement = new Vector3(0, -0.05f, 0);
this.parameters.numLayers = 50f;
this.parameters.startShadowValue = 0.2f;
this.parameters.MaxHairLength = 0.2f;
this.parameters.viewProj = Matrix4x4.Multiply(this.view, this.proj);
// Constant Buffer
var constantBufferDescription = new BufferDescription((uint)Unsafe.SizeOf <Parameters>(), BufferFlags.ConstantBuffer, ResourceUsage.Default);
this.constantBuffer = this.graphicsContext.Factory.CreateBuffer(ref this.parameters, ref constantBufferDescription);
// Create FurTexture
uint size = 1024;
var description = new TextureDescription()
{
Type = TextureType.Texture2D,
Width = size,
Height = size,
Depth = 1,
ArraySize = 1,
Faces = 1,
Usage = ResourceUsage.Default,
CpuAccess = ResourceCpuAccess.None,
Flags = TextureFlags.ShaderResource,
Format = PixelFormat.R8_UNorm,
MipLevels = 1,
SampleCount = TextureSampleCount.None,
};
var textureFur = this.graphicsContext.Factory.CreateTexture(ref description);
uint totalPixels = size * size;
byte[] data = new byte[totalPixels];
int strands = (int)(density * totalPixels);
int minValue = (int)(minHairLength * 255f);
for (int i = 0; i < strands; i++)
{
int x = rand.Next((int)size);
int y = rand.Next((int)size);
data[(x * size) + y] = (byte)rand.Next(minValue, 255);
}
this.graphicsContext.UpdateTextureData(textureFur, data);
// Color Texture
Texture texture2D = null;
////using (var stream = this.assetsDirectory.Open("Cat.ktx"))
using (var stream = this.assetsDirectory.Open("Leopard.ktx"))
////using (var stream = this.assetsDirectory.Open("Cheetah.ktx"))
////using (var stream = this.assetsDirectory.Open("GrayLeopard.ktx"))
////using (var stream = this.assetsDirectory.Open("Tiger.ktx"))
////using (var stream = this.assetsDirectory.Open("Zebra.ktx"))
{
if (stream != null)
{
VisualTests.LowLevel.Images.Image image = VisualTests.LowLevel.Images.Image.Load(stream);
var textureDescription = image.TextureDescription;
texture2D = graphicsContext.Factory.CreateTexture(image.DataBoxes, ref textureDescription);
}
}
SamplerStateDescription sampler1Description = SamplerStates.LinearClamp;
var sampler1 = this.graphicsContext.Factory.CreateSamplerState(ref sampler1Description);
SamplerStateDescription sampler2Description = SamplerStates.PointClamp;
var sampler2 = this.graphicsContext.Factory.CreateSamplerState(ref sampler2Description);
// Prepare Pipeline
var vertexLayouts = new InputLayouts()
.Add(VertexPositionNormalTexture.VertexFormat);
ResourceLayoutDescription layoutDescription = new ResourceLayoutDescription(
new LayoutElementDescription(0, ResourceType.ConstantBuffer, ShaderStages.Vertex),
new LayoutElementDescription(0, ResourceType.Texture, ShaderStages.Pixel),
new LayoutElementDescription(1, ResourceType.Texture, ShaderStages.Pixel),
new LayoutElementDescription(0, ResourceType.Sampler, ShaderStages.Pixel),
new LayoutElementDescription(1, ResourceType.Sampler, ShaderStages.Pixel));
ResourceLayout resourcesLayout = this.graphicsContext.Factory.CreateResourceLayout(ref layoutDescription);
ResourceSetDescription resourceSetDescription = new ResourceSetDescription(resourcesLayout, this.constantBuffer, texture2D, textureFur, sampler1, sampler2);
this.resourceSet = this.graphicsContext.Factory.CreateResourceSet(ref resourceSetDescription);
var pipelineDescription = new GraphicsPipelineDescription()
{
PrimitiveTopology = PrimitiveTopology.TriangleList,
InputLayouts = vertexLayouts,
ResourceLayouts = new[] { resourcesLayout },
Shaders = new ShaderStateDescription()
{
VertexShader = vertexShader,
PixelShader = pixelShader,
},
RenderStates = new RenderStateDescription()
{
RasterizerState = RasterizerStates.None,
BlendState = BlendStates.Opaque,
DepthStencilState = DepthStencilStates.None,
},
Outputs = this.frameBuffer.OutputDescription,
};
this.graphicsPipelineState = this.graphicsContext.Factory.CreateGraphicsPipeline(ref pipelineDescription);
this.graphicsCommandQueue = this.graphicsContext.Factory.CreateCommandQueue();
var swapChainDescription = this.swapChain?.SwapChainDescription;
var width = swapChainDescription.HasValue ? swapChainDescription.Value.Width : this.surface.Width;
var height = swapChainDescription.HasValue ? swapChainDescription.Value.Height : this.surface.Height;
this.viewports = new Viewport[1];
this.viewports[0] = new Viewport(0, 0, width, height);
this.scissors = new Rectangle[1];
this.scissors[0] = new Rectangle(0, 0, (int)width, (int)height);
this.vertexBuffers = new Buffer[1];
this.vertexBuffers[0] = vertexBuffer;
}