private void UpdateConstantBuffer(ConstantBufferCPU data)
{
deviceContext.UpdateSubresource(ref data, constantBuffer);
deviceContext.VertexShader.SetConstantBuffer(0, constantBuffer);
deviceContext.PixelShader.SetConstantBuffer(0, constantBuffer);
}
private void InitializeShaders()
{
ConstantBufferCPU data = new ConstantBufferCPU();
data.worldViewProjectionMatrix = Matrix.Identity;
data.time = 0.0f;
data.padding = Vector3.Zero;
constantBuffer = D3D11.Buffer.Create(device, D3D11.BindFlags.ConstantBuffer, ref data);
string textVS = System.IO.File.ReadAllText("Shaders\\MainVS.hlsl");
using (var vertexShaderByteCode = ShaderBytecode.Compile(textVS, "main", "vs_4_0", ShaderFlags.Debug | ShaderFlags.WarningsAreErrors, EffectFlags.None, null, new StreamInclude(), sourceFileName: "Shaders\\MainVS.hlsl"))
{
if (vertexShaderByteCode.Bytecode == null)
{
MessageBox.Show(vertexShaderByteCode.Message, "Shader Compilation Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
System.Environment.Exit(-1);
}
vertexShader = new D3D11.VertexShader(device, vertexShaderByteCode);
using (var inputSignature = ShaderSignature.GetInputSignature(vertexShaderByteCode))
inputLayout = new D3D11.InputLayout(device, inputSignature, inputElements);
}
string textPS = System.IO.File.ReadAllText("Shaders\\MainPS.hlsl");
using (var pixelShaderByteCode = ShaderBytecode.Compile(textPS, "main", "ps_4_0", ShaderFlags.Debug | ShaderFlags.WarningsAreErrors, EffectFlags.None, null, new StreamInclude(), sourceFileName: "Shaders\\MainPS.hlsl"))
{
if (pixelShaderByteCode.Bytecode == null)
{
MessageBox.Show(pixelShaderByteCode.Message, "Shader Compilation Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
System.Environment.Exit(-1);
}
pixelShader = new D3D11.PixelShader(device, pixelShaderByteCode);
}
}
public void Render()
{
Viewport viewport = new Viewport(0, 0, width, height);
#if RENDER_CUBE
ConstantBufferCPU data = GetConstantBufferForCube();
#else
ConstantBufferCPU data = GetConstantBufferForTriangle();
#endif
int vertexSize = Utilities.SizeOf <Vector3>();
int vertexCount = trianglePositionVertexBuffer.Description.SizeInBytes / vertexSize;
if (mode == RenderMode.RenderModeHardware)
{
deviceContext.InputAssembler.SetVertexBuffers(0, new D3D11.VertexBufferBinding(trianglePositionVertexBuffer, vertexSize, 0));
deviceContext.InputAssembler.SetVertexBuffers(1, new D3D11.VertexBufferBinding(triangleColorVertexBuffer, vertexSize, 0));
deviceContext.InputAssembler.InputLayout = inputLayout;
deviceContext.InputAssembler.PrimitiveTopology = SharpDX.Direct3D.PrimitiveTopology.TriangleList;
deviceContext.VertexShader.Set(vertexShader);
deviceContext.PixelShader.Set(pixelShader);
deviceContext.Rasterizer.SetViewport(viewport);
deviceContext.Rasterizer.State = rasterizerState;
deviceContext.OutputMerger.SetDepthStencilState(depthStencilState, 1);
deviceContext.OutputMerger.SetRenderTargets(depthDSV, backbufferRTV);
//alpha blending
deviceContext.OutputMerger.SetBlendState(blendState, new SharpDX.Color4(0.0f, 0.0f, 0.0f, 0.0f), 0xFFFFFFFF);
deviceContext.ClearDepthStencilView(depthDSV, D3D11.DepthStencilClearFlags.Depth, 1.0f, 0);
deviceContext.ClearRenderTargetView(backbufferRTV, new SharpDX.Color(32, 103, 178));
}
else
{
softwareRasterizer.Clear(new Color(32, 103, 178));
}
if (mode == RenderMode.RenderModeHardware)
{
UpdateConstantBuffer(data);
#if RENDER_CUBE
int indexCount = triangleIndexBuffer.Description.SizeInBytes / Utilities.SizeOf <int>();
deviceContext.InputAssembler.SetIndexBuffer(triangleIndexBuffer, DXGI.Format.R32_UInt, 0);
deviceContext.DrawIndexed(indexCount, 0, 0);
#else
deviceContext.Draw(vertexCount, 0);
#endif
}
#if MULTIPLE_PYRAMIDS
for (int i = 0; i < 5; i++)
{
if (mode == RenderMode.RenderModeHardware)
{
data.padding = new Vector3(0.5f * -i, 0.5f * -i, 0.5f * -i);
data.alpha.W = 0.1f * i;
UpdateConstantBuffer(data);
int indexCount = triangleIndexBuffer.Description.SizeInBytes / Utilities.SizeOf <int>();
deviceContext.InputAssembler.SetIndexBuffer(triangleIndexBuffer, DXGI.Format.R32_UInt, 0);
deviceContext.DrawIndexed(indexCount, 0, 0);
}
}
#endif
}
