public GlobalIlluminationRenderer(Device device, Vector3 sceneBoundsMin, Vector3 sceneBoundsMax)
{
m_CubeObject = TextureObject.CreateCubeTexture(device, 128, 128, 1, Format.R16G16B16A16_Float, false, true);
m_CubeObjectDepth = TextureObject.CreateCubeTexture(device, 128, 128, 1, Format.R32_Typeless, true, true);
if (System.IO.File.Exists("textures\\givolumer.dds"))
{
m_GIVolumeR = TextureObject.CreateTexture3DFromFile(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumer.dds");
m_GIVolumeG = TextureObject.CreateTexture3DFromFile(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumeg.dds");
m_GIVolumeB = TextureObject.CreateTexture3DFromFile(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumeb.dds");
}
else
{
m_GIVolumeR = TextureObject.CreateTexture3D(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float);
m_GIVolumeG = TextureObject.CreateTexture3D(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float);
m_GIVolumeB = TextureObject.CreateTexture3D(device, VolumeSizeX, VolumeSizeY, VolumeSizeZ, Format.R16G16B16A16_Float);
}
m_InitialSHSet = RenderTargetSet.CreateRenderTargetSet(device, 128, 128, Format.R16G16B16A16_Float, 3, false);
m_Downsampled16x16SHSetR = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled16x16SHSetG = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled16x16SHSetB = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetR = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetG = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetB = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_GIConstantBuffer = ShaderManager.CreateConstantBufferInstance("GIConstantBuffer", device);
m_SceneBoundsMin = sceneBoundsMin;
m_SceneBoundsMax = sceneBoundsMax;
}
public VolumetricFog()
{
m_DensityTexture = null;
m_LightingTexturePing = null;
m_LightingTexturePong = null;
m_ScatteringTexture = null;
m_Phase = false;
}
public VolumetricFog()
{
m_DensityTexture = null;
m_LightingTexturePing = null;
m_LightingTexturePong = null;
m_ScatteringTexture = null;
m_Phase = false;
}
public static void ExecuteComputeForResource(DeviceContext context, TextureObject textureResource, string shader)
{
ShaderWrapper wrapper = m_Shaders[shader];
context.ComputeShader.Set(wrapper.m_ComputeShader);
context.Dispatch(
(textureResource.m_Width + wrapper.m_ThreadsX - 1) / wrapper.m_ThreadsX,
(textureResource.m_Height + wrapper.m_ThreadsY - 1) / wrapper.m_ThreadsY,
(textureResource.m_Depth + wrapper.m_ThreadsZ - 1) / wrapper.m_ThreadsZ);
}
public void Initialize(Device device)
{
m_VolumeX = (int)ShaderManager.GetUIntShaderDefine("VOLUME_WIDTH");
m_VolumeY = (int)ShaderManager.GetUIntShaderDefine("VOLUME_HEIGHT");
m_VolumeZ = (int)ShaderManager.GetUIntShaderDefine("VOLUME_DEPTH");
m_DensityTexture = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16_Float);
m_LightingTexturePing = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
m_LightingTexturePong = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
m_ScatteringTexture = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
}
public void Initialize(Device device)
{
m_VolumeX = (int)ShaderManager.GetUIntShaderDefine("VOLUME_WIDTH");
m_VolumeY = (int)ShaderManager.GetUIntShaderDefine("VOLUME_HEIGHT");
m_VolumeZ = (int)ShaderManager.GetUIntShaderDefine("VOLUME_DEPTH");
m_DensityTexture = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16_Float);
m_LightingTexturePing = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
m_LightingTexturePong = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
m_ScatteringTexture = TextureObject.CreateTexture3D(device, m_VolumeX, m_VolumeY, m_VolumeZ, Format.R16G16B16A16_Float);
}
public static RenderTargetSet CreateRenderTargetSet(Device device, int width, int height, Format format, int numSurfaces, bool needsDepth)
{
RenderTargetSet rt = new RenderTargetSet();
rt.m_Descriptor = new RenderTargetDescriptor()
{
m_Format = format,
m_HasDepth = needsDepth,
m_Height = height,
m_NumSurfaces = numSurfaces,
m_Width = width
};
rt.m_NumRTs = numSurfaces;
for (int i = 0; i < numSurfaces; ++i)
{
rt.m_RenderTargets[i] = TextureObject.CreateTexture(device, width, height, 1, format, false, true);
}
if (needsDepth)
{
rt.m_DepthStencil = TextureObject.CreateTexture(device, width, height, 1, Format.R32_Typeless, true, false);
}
rt.m_Viewport = new Viewport(0, 0, width, height, 0.0f, 1.0f);
if (m_DepthStencilState == null)
{
DepthStencilStateDescription dsStateDesc = new DepthStencilStateDescription()
{
IsDepthEnabled = true,
IsStencilEnabled = false,
DepthWriteMask = DepthWriteMask.All,
DepthComparison = Comparison.Less,
};
m_DepthStencilState = DepthStencilState.FromDescription(device, dsStateDesc);
dsStateDesc = new DepthStencilStateDescription()
{
IsDepthEnabled = false,
IsStencilEnabled = false,
DepthWriteMask = DepthWriteMask.Zero,
DepthComparison = Comparison.Always,
};
m_DepthStencilStateNoDepth = DepthStencilState.FromDescription(device, dsStateDesc);
}
return(rt);
}
// Static functions
static public TextureObject CreateTexture3DFromFile(Device device, int width, int height, int depth, Format format, string fileName)
{
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_Depth = depth;
newTexture.m_TexFormat = format;
newTexture.m_Mips = 1;
BindFlags bindFlags = BindFlags.ShaderResource | BindFlags.RenderTarget | BindFlags.UnorderedAccess;
ImageLoadInformation imageLoadInfo = new ImageLoadInformation()
{
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
Depth = depth,
MipLevels = 1,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject3D = Texture3D.FromFile(device, fileName, imageLoadInfo);
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 0,
Format = format,
Dimension = ShaderResourceViewDimension.Texture3D,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = 1,
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject3D, srvViewDesc);
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject3D);
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject3D);
return(newTexture);
}
public RenderTargetSet()
{
for (int i = 0; i < MAX_RENDERTARGETS; ++i)
{
m_RenderTargets[i] = null;
}
for (int i = 0; i < MAX_UAVS; ++i)
{
m_UAVs[i] = null;
}
m_DepthStencil = null;
m_NumRTs = 0;
m_UAVsNum = 0;
m_Viewport = new Viewport();
}
public RenderTargetSet()
{
for (int i = 0; i < MAX_RENDERTARGETS; ++i )
{
m_RenderTargets[i] = null;
}
for (int i = 0; i < MAX_UAVS; ++i)
{
m_UAVs[i] = null;
}
m_DepthStencil = null;
m_NumRTs = 0;
m_UAVsNum = 0;
m_Viewport = new Viewport();
}
public static void GenerateCubemapMips(DeviceContext context, string shader, TextureObject targetTexture, TextureObject sourceTexture)
{
for (int m = 0; m < targetTexture.m_Mips; ++m)
{
for (int i = 0; i < 6; ++i)
{
dynamic cdb = m_CubemapDownsampleBuffer;
cdb.g_Mip = (float)m;
cdb.g_Face = i;
m_CubemapDownsampleBuffer.CompileAndBind(context);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[m * 6 + i], null, targetTexture.m_Width >> m, targetTexture.m_Height >> m);
context.PixelShader.SetShaderResource(PostEffectHelper.m_RandomNumbersBuffer.m_ShaderResourceView, 39);
context.PixelShader.SetShaderResource(sourceTexture.m_ShaderResourceView, 0);
PostEffectHelper.RenderFullscreenTriangle(context, shader);
RenderTargetSet.BindNull(context);
}
}
}
public static void GenerateCubemapMips(DeviceContext context, string shader, TextureObject targetTexture, TextureObject sourceTexture)
{
for (int m = 0; m < targetTexture.m_Mips; ++m)
{
for (int i = 0; i < 6; ++i)
{
dynamic cdb = m_CubemapDownsampleBuffer;
cdb.g_Mip = (float)m;
cdb.g_Face = i;
m_CubemapDownsampleBuffer.CompileAndBind(context);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[m * 6 + i], null, targetTexture.m_Width >> m, targetTexture.m_Height >> m);
context.PixelShader.SetShaderResource(PostEffectHelper.m_RandomNumbersBuffer.m_ShaderResourceView, 39);
context.PixelShader.SetShaderResource(sourceTexture.m_ShaderResourceView, 0);
PostEffectHelper.RenderFullscreenTriangle(context, shader);
RenderTargetSet.BindNull(context);
}
}
}
public void RenderVolumetricFog(DeviceContext context, TextureObject shadowMap, GlobalIlluminationRenderer giRenderer)
{
// Not using temporal manager as it was designed for render target sets; TODO
TextureObject previousFrameAccumulationTexture = m_Phase ? m_LightingTexturePing : m_LightingTexturePong;
TextureObject currentFrameAccumulationTexture = m_Phase ? m_LightingTexturePong : m_LightingTexturePing;
m_Phase = !m_Phase;
using (new GpuProfilePoint(context, "VolumetricFog"))
{
#if false
using (new GpuProfilePoint(context, "DensityEstimation"))
{
context.ComputeShader.SetUnorderedAccessView(m_DensityTexture.m_UnorderedAccessView, 0);
ShaderManager.ExecuteComputeForResource(context, m_DensityTexture, "CalculateDensity");
ContextHelper.ClearCSContext(context);
}
#endif
using (new GpuProfilePoint(context, "LitFogVolume"))
{
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeR.m_ShaderResourceView, 5);
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeG.m_ShaderResourceView, 6);
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeB.m_ShaderResourceView, 7);
context.ComputeShader.SetShaderResource(previousFrameAccumulationTexture.m_ShaderResourceView, 8);
context.ComputeShader.SetShaderResource(m_DensityTexture.m_ShaderResourceView, 0);
context.ComputeShader.SetShaderResource(shadowMap.m_ShaderResourceView, 1);
context.ComputeShader.SetUnorderedAccessView(currentFrameAccumulationTexture.m_UnorderedAccessView, 1);
ShaderManager.ExecuteComputeForResource(context, currentFrameAccumulationTexture, "LitFogVolume");
ContextHelper.ClearCSContext(context);
}
using (new GpuProfilePoint(context, "ComputeScattering"))
{
context.ComputeShader.SetShaderResource(currentFrameAccumulationTexture.m_ShaderResourceView, 0);
context.ComputeShader.SetUnorderedAccessView(m_ScatteringTexture.m_UnorderedAccessView, 2);
ShaderManager.ExecuteComputeForSize(context, m_VolumeX, m_VolumeY, 1, "ComputeScattering");
ContextHelper.ClearCSContext(context);
}
}
}
public void RenderVolumetricFog(DeviceContext context, TextureObject shadowMap, GlobalIlluminationRenderer giRenderer)
{
// Not using temporal manager as it was designed for render target sets; TODO
TextureObject previousFrameAccumulationTexture = m_Phase ? m_LightingTexturePing : m_LightingTexturePong;
TextureObject currentFrameAccumulationTexture = m_Phase ? m_LightingTexturePong : m_LightingTexturePing;
m_Phase = !m_Phase;
using (new GpuProfilePoint(context, "VolumetricFog"))
{
#if false
using (new GpuProfilePoint(context, "DensityEstimation"))
{
context.ComputeShader.SetUnorderedAccessView(m_DensityTexture.m_UnorderedAccessView, 0);
ShaderManager.ExecuteComputeForResource(context, m_DensityTexture, "CalculateDensity");
ContextHelper.ClearCSContext(context);
}
#endif
using (new GpuProfilePoint(context, "LitFogVolume"))
{
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeR.m_ShaderResourceView, 5);
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeG.m_ShaderResourceView, 6);
context.ComputeShader.SetShaderResource(giRenderer.m_GIVolumeB.m_ShaderResourceView, 7);
context.ComputeShader.SetShaderResource(previousFrameAccumulationTexture.m_ShaderResourceView, 8);
context.ComputeShader.SetShaderResource(m_DensityTexture.m_ShaderResourceView, 0);
context.ComputeShader.SetShaderResource(shadowMap.m_ShaderResourceView, 1);
context.ComputeShader.SetUnorderedAccessView(currentFrameAccumulationTexture.m_UnorderedAccessView, 1);
ShaderManager.ExecuteComputeForResource(context, currentFrameAccumulationTexture, "LitFogVolume");
ContextHelper.ClearCSContext(context);
}
using (new GpuProfilePoint(context, "ComputeScattering"))
{
context.ComputeShader.SetShaderResource(currentFrameAccumulationTexture.m_ShaderResourceView, 0);
context.ComputeShader.SetUnorderedAccessView(m_ScatteringTexture.m_UnorderedAccessView, 2);
ShaderManager.ExecuteComputeForSize(context, m_VolumeX, m_VolumeY, 1, "ComputeScattering");
ContextHelper.ClearCSContext(context);
}
}
}
public GlobalIlluminationRenderer(Device device, Vector3 sceneBoundsMin, Vector3 sceneBoundsMax)
{
m_VolumeSizeX = (int)ShaderManager.GetUIntShaderDefine("GI_VOLUME_RESOLUTION_X");
m_VolumeSizeY = (int)ShaderManager.GetUIntShaderDefine("GI_VOLUME_RESOLUTION_Y");
m_VolumeSizeZ = (int)ShaderManager.GetUIntShaderDefine("GI_VOLUME_RESOLUTION_Z");
m_CubeObject = TextureObject.CreateCubeTexture(device, 128, 128, 1, Format.R16G16B16A16_Float, false, true);
m_CubeObjectDepth = TextureObject.CreateCubeTexture(device, 128, 128, 1, Format.R32_Typeless, true, true);
if (System.IO.File.Exists("textures\\givolumer.dds"))
{
m_GIVolumeR = TextureObject.CreateTexture3DFromFile(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumer.dds");
m_GIVolumeG = TextureObject.CreateTexture3DFromFile(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumeg.dds");
m_GIVolumeB = TextureObject.CreateTexture3DFromFile(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float, "textures\\givolumeb.dds");
}
else
{
m_GIVolumeR = TextureObject.CreateTexture3D(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float);
m_GIVolumeG = TextureObject.CreateTexture3D(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float);
m_GIVolumeB = TextureObject.CreateTexture3D(device, m_VolumeSizeX, m_VolumeSizeY, m_VolumeSizeZ, Format.R16G16B16A16_Float);
}
m_InitialSHSet = RenderTargetSet.CreateRenderTargetSet(device, 128, 128, Format.R16G16B16A16_Float, 3, false);
m_Downsampled16x16SHSetR = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled16x16SHSetG = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled16x16SHSetB = RenderTargetSet.CreateRenderTargetSet(device, 32, 32, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetR = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetG = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_Downsampled4x4SHSetB = RenderTargetSet.CreateRenderTargetSet(device, 8, 8, Format.R16G16B16A16_Float, 1, false);
m_GIConstantBuffer = ShaderManager.CreateConstantBufferInstance("GIConstantBuffer", device);
m_SceneBoundsMin = sceneBoundsMin;
m_SceneBoundsMax = sceneBoundsMax;
}
// Static functions
static public TextureObject CreateCubeTexture(Device device, int width, int height, int mips, Format format, bool isDepthStencil, bool needsGpuWrite)
{
if (isDepthStencil && format != Format.R32_Typeless && format != Format.R24G8_Typeless)
{
throw new Exception("Unsupported depth format");
}
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_TexFormat = format;
newTexture.m_Mips = mips;
newTexture.m_IsCube = true;
newTexture.m_ArraySize = 6;
BindFlags bindFlags = BindFlags.ShaderResource;
if (isDepthStencil) bindFlags |= BindFlags.DepthStencil;
if (needsGpuWrite && !isDepthStencil) bindFlags |= BindFlags.RenderTarget;
if (needsGpuWrite && !isDepthStencil) bindFlags |= BindFlags.UnorderedAccess;
Texture2DDescription textureDescription = new Texture2DDescription
{
ArraySize = 6,
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
MipLevels = mips,
OptionFlags = ResourceOptionFlags.TextureCube | ((mips > 1 && needsGpuWrite) ? ResourceOptionFlags.GenerateMipMaps : ResourceOptionFlags.None),
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject2D = new Texture2D(device, textureDescription);
Format srvFormat = format;
// Special case for depth
if (isDepthStencil)
{
srvFormat = (format == Format.R32_Typeless) ? Format.R32_Float : Format.R24_UNorm_X8_Typeless;
}
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 6,
Format = srvFormat,
Dimension = ShaderResourceViewDimension.Texture2DArray,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = mips
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
newTexture.m_ArrayShaderResourceViews = new ShaderResourceView[6];
for (int i = 0; i < 6; ++ i )
{
srvViewDesc.ArraySize = 1;
srvViewDesc.FirstArraySlice = i;
newTexture.m_ArrayShaderResourceViews[i] = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
}
if (isDepthStencil)
{
DepthStencilViewDescription dsViewDesc = new DepthStencilViewDescription
{
ArraySize = 6,
Format = (format == Format.R32_Typeless) ? Format.D32_Float : Format.D24_UNorm_S8_UInt,
Dimension = DepthStencilViewDimension.Texture2DArray,
MipSlice = 0,
Flags = 0,
FirstArraySlice = 0
};
newTexture.m_DepthStencilView = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
newTexture.m_ArrayDepthStencilViews = new DepthStencilView[6];
for (int i = 0; i < 6; ++i)
{
dsViewDesc.ArraySize = 1;
dsViewDesc.FirstArraySlice = i;
newTexture.m_ArrayDepthStencilViews[i] = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
}
}
// No RTV for depth stencil, sorry
if (needsGpuWrite && !isDepthStencil)
{
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject2D);
RenderTargetViewDescription rtvDesc = new RenderTargetViewDescription
{
ArraySize = 6,
Dimension = RenderTargetViewDimension.Texture2DArray,
FirstArraySlice = 0,
Format = format,
};
newTexture.m_ArrayRenderTargetViews = new RenderTargetView[6];
for (int i = 0; i < 6; ++i)
{
rtvDesc.ArraySize = 1;
rtvDesc.FirstArraySlice = i;
newTexture.m_ArrayRenderTargetViews[i] = new RenderTargetView(device, newTexture.m_TextureObject2D, rtvDesc);
}
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 6,
Dimension = UnorderedAccessViewDimension.Texture2DArray,
FirstArraySlice = 0,
Format = format,
};
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
newTexture.m_ArrayUnorderedAccessViews = new UnorderedAccessView[6];
for (int i = 0; i < 6; ++i)
{
uavDesc.ArraySize = 1;
uavDesc.FirstArraySlice = i;
newTexture.m_ArrayUnorderedAccessViews[i] = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
}
}
return newTexture;
}
public static void RenderCubemap(DeviceContext context, TextureObject targetTexture, TextureObject targetDepth, SimpleSceneWrapper sceneWrapper, Vector3 position, float range, bool depthOnly = false, Color4 clearColor = new Color4())
{
//using (new GpuProfilePoint(context, "CubemapRendering"))
{
// some hardcoded near plane
Matrix projectionMatrix = Matrix.PerspectiveFovLH((float)Math.PI / 2.0f, 1.0f, 0.05f, range);
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.DepthCompare);
// set the shaders
context.VertexShader.Set(ShaderManager.GetVertexShader("VertexScene"));
context.PixelShader.Set(depthOnly ? null : ShaderManager.GetPixelShader("PixelSceneSimple"));
dynamic cvpb = m_CurrentViewportBuffer;
for (int i = 0; i < 6; ++i)
{
Vector3 lookAt = new Vector3();
Vector3 upVec = new Vector3();
switch (i)
{
case 0:
lookAt = new Vector3(1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 1:
lookAt = new Vector3(-1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 2:
lookAt = new Vector3(0.0f, 1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, -1.0f);
break;
case 3:
lookAt = new Vector3(0.0f, -1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, 1.0f);
break;
case 4:
lookAt = new Vector3(0.0f, 0.0f, 1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 5:
lookAt = new Vector3(0.0f, 0.0f, -1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
}
Matrix viewMatrix = Matrix.LookAtLH(position, position + lookAt, upVec);
cvpb.g_ProjMatrix = projectionMatrix;
cvpb.g_ViewMatrix = viewMatrix;
cvpb.g_ViewProjMatrix = viewMatrix * projectionMatrix;
{
context.ClearRenderTargetView(targetTexture.m_ArrayRenderTargetViews[i], clearColor);
context.ClearDepthStencilView(targetDepth.m_ArrayDepthStencilViews[i], DepthStencilClearFlags.Depth, 1.0f, 0);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[i], targetDepth.m_ArrayDepthStencilViews[i], targetTexture.m_Width, targetTexture.m_Height);
m_CurrentViewportBuffer.CompileAndBind(context);
// render triangles
sceneWrapper.Render(context);
RenderTargetSet.BindNull(context);
}
}
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.NoDepth);
}
}
// Static functions
static public TextureObject CreateTexture(Device device, int width, int height, int mips, Format format, bool isDepthStencil, bool needsGpuWrite)
{
if (isDepthStencil && format != Format.R32_Typeless && format != Format.R24G8_Typeless)
{
throw new Exception("Unsupported depth format");
}
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_TexFormat = format;
newTexture.m_Mips = mips;
BindFlags bindFlags = BindFlags.ShaderResource;
if (isDepthStencil)
{
bindFlags |= BindFlags.DepthStencil;
}
if (needsGpuWrite && !isDepthStencil)
{
bindFlags |= BindFlags.RenderTarget;
}
if (needsGpuWrite && !isDepthStencil)
{
bindFlags |= BindFlags.UnorderedAccess;
}
Texture2DDescription textureDescription = new Texture2DDescription
{
ArraySize = 1,
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
MipLevels = mips,
OptionFlags = (mips > 1 && needsGpuWrite) ? ResourceOptionFlags.GenerateMipMaps : ResourceOptionFlags.None,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject2D = new Texture2D(device, textureDescription);
Format srvFormat = format;
// Special case for depth
if (isDepthStencil)
{
srvFormat = (format == Format.R32_Typeless) ? Format.R32_Float : Format.R24_UNorm_X8_Typeless;
}
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 0,
Format = srvFormat,
Dimension = ShaderResourceViewDimension.Texture2D,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = mips
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
if (isDepthStencil)
{
DepthStencilViewDescription dsViewDesc = new DepthStencilViewDescription
{
ArraySize = 0,
Format = (format == Format.R32_Typeless) ? Format.D32_Float : Format.D24_UNorm_S8_UInt,
Dimension = DepthStencilViewDimension.Texture2D,
MipSlice = 0,
Flags = 0,
FirstArraySlice = 0
};
newTexture.m_DepthStencilView = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
}
// No RTV for depth stencil, sorry
if (needsGpuWrite && !isDepthStencil)
{
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject2D);
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 0,
DepthSliceCount = 1,
Dimension = UnorderedAccessViewDimension.Texture2D,
ElementCount = 1,
FirstArraySlice = 0,
FirstDepthSlice = 0,
FirstElement = 0,
Flags = UnorderedAccessViewBufferFlags.None,
Format = format,
MipSlice = 0
};
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
}
return(newTexture);
}
public void Initialize(Device device, Form form, Panel panel, int resolutionX, int resolutionY)
{
m_ResolutionX = resolutionX;
m_ResolutionY = resolutionY;
m_FullResDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_FullResAndDepthDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = true,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_ResolvedColorDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R8G8B8A8_UNorm,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_SSAODescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R8_UNorm,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY / 2,
m_Width = resolutionX / 2
};
m_HalfResDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY / 2,
m_Width = resolutionX / 2
};
m_SimpleSceneWrapper.Initialize(device, "sponza");
TemporalSurfaceManager.InitializeRenderTarget("SceneMainRender", m_FullResAndDepthDescriptor);
TemporalSurfaceManager.InitializeRenderTarget("ResolvedColor", m_ResolvedColorDescriptor );
TemporalSurfaceManager.InitializeRenderTarget("MotionVectors",
new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
});
m_PostEffectsConstantBuffer = ShaderManager.CreateConstantBufferInstance("PostEffects", device);
m_ForwardPassBuffer = ShaderManager.CreateConstantBufferInstance("ForwardPassBuffer", device);
m_ViewportConstantBuffer = ShaderManager.CreateConstantBufferInstance("GlobalViewportBuffer", device);
m_CurrentViewportBuffer = ShaderManager.CreateConstantBufferInstance("CurrentViewport", device);
Vector3 min, max;
m_SimpleSceneWrapper.GetSceneBounds(out min, out max);
m_GIRenderer = new GlobalIlluminationRenderer(device, min, max);
// Init passes
m_ScatterDOFPass = new ScatterDOFPass();
m_ScatterDOFPass.Initialize(device, resolutionX, resolutionY);
m_ResolveHDRPass = new ResolveHDRPass();
m_ResolveMotionVectorsPass = new ResolveMotionVectorsPass();
m_ResolveTemporalPass = new ResolveTemporalMotionBasedPass();
m_FxaaPass = new FxaaPass();
m_DepthOperationsPass = new DepthOperationsPass(resolutionX, resolutionY);
m_SSAOPass = new SSAOEffectPass(device, resolutionX / 2, resolutionY / 2);
m_SSReflectionsPass = new SSReflectionsEffectPass(device, resolutionX / 2, resolutionY / 2);
m_LuminanceCalculations = new LuminanceCalculations(device, resolutionX, resolutionY);
m_ShadowEVSMGenerator = new ShadowEVSMGenerator();
m_VolumetricFog = new VolumetricFog();
m_VolumetricFog.Initialize(device);
m_StartTime = DateTime.Now;
m_ViewportCamera.BindToInput(form, panel);
POISSON_SAMPLES = new float[POISSON_SAMPLE_NUM * 2]
{
0.655897408497f, 0.95575996511f,
0.944576716895f, 0.455478901428f,
0.203683172197f, 0.0177149729234f,
0.383628747896f, 0.379284571357f,
0.945473563065f, 0.779431977074f,
0.570420562284f, 0.576156483093f,
0.674354533289f, 0.286346887653f,
0.347776132801f, 0.734938485879f,
};
m_CubeObject = TextureObject.CreateCubeTexture(device, 256, 256, 1, Format.R16G16B16A16_Float, false, true);
m_CubeObjectFiltered = TextureObject.CreateCubeTexture(device, 256, 256, 7, Format.R16G16B16A16_Float, false, true);
m_CubeDepthObject = TextureObject.CreateCubeTexture(device, 256, 256, 1, Format.R32_Typeless, true, true);
}
public static void ExecuteComputeForResource(DeviceContext context, TextureObject textureResource, string shader)
{
BindDebugUAV(context);
ShaderWrapper wrapper = m_Shaders[shader];
context.ComputeShader.Set((ComputeShader)wrapper.m_ShaderObject);
context.Dispatch(
(textureResource.m_Width + wrapper.m_ThreadsX - 1) / wrapper.m_ThreadsX,
(textureResource.m_Height + wrapper.m_ThreadsY - 1) / wrapper.m_ThreadsY,
(textureResource.m_Depth + wrapper.m_ThreadsZ - 1) / wrapper.m_ThreadsZ);
}
public static void RenderCubemap(DeviceContext context, TextureObject targetTexture, TextureObject targetDepth, SimpleSceneWrapper sceneWrapper, Vector3 position, float range, bool depthOnly = false, Color4 clearColor = new Color4())
{
//using (new GpuProfilePoint(context, "CubemapRendering"))
{
// some hardcoded near plane
Matrix projectionMatrix = Matrix.PerspectiveFovLH((float)Math.PI / 2.0f, 1.0f, 0.05f, range);
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.DepthCompare);
// set the shaders
context.VertexShader.Set(ShaderManager.GetVertexShader("VertexScene"));
context.PixelShader.Set(depthOnly ? null : ShaderManager.GetPixelShader("PixelSceneSimple"));
dynamic cvpb = m_CurrentViewportBuffer;
for (int i = 0; i < 6; ++i)
{
Vector3 lookAt = new Vector3();
Vector3 upVec = new Vector3();
switch (i)
{
case 0:
lookAt = new Vector3(1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 1:
lookAt = new Vector3(-1.0f, 0.0f, 0.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 2:
lookAt = new Vector3(0.0f, 1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, -1.0f);
break;
case 3:
lookAt = new Vector3(0.0f, -1.0f, 0.0f);
upVec = new Vector3(0.0f, 0.0f, 1.0f);
break;
case 4:
lookAt = new Vector3(0.0f, 0.0f, 1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
case 5:
lookAt = new Vector3(0.0f, 0.0f, -1.0f);
upVec = new Vector3(0.0f, 1.0f, 0.0f);
break;
}
Matrix viewMatrix = Matrix.LookAtLH(position, position + lookAt, upVec);
cvpb.g_ProjMatrix = projectionMatrix;
cvpb.g_ViewMatrix = viewMatrix;
cvpb.g_ViewProjMatrix = viewMatrix * projectionMatrix;
{
context.ClearRenderTargetView(targetTexture.m_ArrayRenderTargetViews[i], clearColor);
context.ClearDepthStencilView(targetDepth.m_ArrayDepthStencilViews[i], DepthStencilClearFlags.Depth, 1.0f, 0);
RenderTargetSet.BindTextureAsRenderTarget(context, targetTexture.m_ArrayRenderTargetViews[i], targetDepth.m_ArrayDepthStencilViews[i], targetTexture.m_Width, targetTexture.m_Height);
m_CurrentViewportBuffer.CompileAndBind(context);
// render triangles
sceneWrapper.Render(context);
RenderTargetSet.BindNull(context);
}
}
ContextHelper.SetDepthStencilState(context, ContextHelper.DepthConfigurationType.NoDepth);
}
}
public void AddUAV(TextureObject uavSource)
{
m_UAVs[m_UAVsNum++] = uavSource;
}
// Static functions
static public TextureObject CreateCubeTexture(Device device, int width, int height, int mips, Format format, bool isDepthStencil, bool needsGpuWrite)
{
if (isDepthStencil && format != Format.R32_Typeless && format != Format.R24G8_Typeless)
{
throw new Exception("Unsupported depth format");
}
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_TexFormat = format;
newTexture.m_Mips = mips;
newTexture.m_IsCube = true;
newTexture.m_ArraySize = 6;
BindFlags bindFlags = BindFlags.ShaderResource;
if (isDepthStencil)
{
bindFlags |= BindFlags.DepthStencil;
}
if (needsGpuWrite && !isDepthStencil)
{
bindFlags |= BindFlags.RenderTarget;
}
if (needsGpuWrite && !isDepthStencil)
{
bindFlags |= BindFlags.UnorderedAccess;
}
Texture2DDescription textureDescription = new Texture2DDescription
{
ArraySize = 6,
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
MipLevels = mips,
OptionFlags = ResourceOptionFlags.TextureCube | ((mips > 1 && needsGpuWrite) ? ResourceOptionFlags.GenerateMipMaps : ResourceOptionFlags.None),
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject2D = new Texture2D(device, textureDescription);
Format srvFormat = format;
// Special case for depth
if (isDepthStencil)
{
srvFormat = (format == Format.R32_Typeless) ? Format.R32_Float : Format.R24_UNorm_X8_Typeless;
}
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
Format = srvFormat,
Dimension = ShaderResourceViewDimension.TextureCube,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = mips,
ArraySize = 6,
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
newTexture.m_ArrayShaderResourceViews = new ShaderResourceView[6];
for (int i = 0; i < 6; ++i)
{
srvViewDesc.ArraySize = 1;
srvViewDesc.FirstArraySlice = i;
newTexture.m_ArrayShaderResourceViews[i] = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
}
if (isDepthStencil)
{
DepthStencilViewDescription dsViewDesc = new DepthStencilViewDescription
{
ArraySize = 6,
Format = (format == Format.R32_Typeless) ? Format.D32_Float : Format.D24_UNorm_S8_UInt,
Dimension = DepthStencilViewDimension.Texture2DArray,
MipSlice = 0,
Flags = 0,
FirstArraySlice = 0
};
newTexture.m_DepthStencilView = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
newTexture.m_ArrayDepthStencilViews = new DepthStencilView[6];
for (int i = 0; i < 6; ++i)
{
dsViewDesc.ArraySize = 1;
dsViewDesc.FirstArraySlice = i;
newTexture.m_ArrayDepthStencilViews[i] = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
}
}
// No RTV for depth stencil, sorry
if (needsGpuWrite && !isDepthStencil)
{
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject2D);
RenderTargetViewDescription rtvDesc = new RenderTargetViewDescription
{
ArraySize = 6,
Dimension = RenderTargetViewDimension.Texture2DArray,
FirstArraySlice = 0,
Format = format,
};
newTexture.m_ArrayRenderTargetViews = new RenderTargetView[6 * mips];
for (int m = 0; m < mips; ++m)
{
for (int i = 0; i < 6; ++i)
{
rtvDesc.MipSlice = m;
rtvDesc.ArraySize = 1;
rtvDesc.FirstArraySlice = i;
newTexture.m_ArrayRenderTargetViews[6 * m + i] = new RenderTargetView(device, newTexture.m_TextureObject2D, rtvDesc);
}
}
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 6,
Dimension = UnorderedAccessViewDimension.Texture2DArray,
FirstArraySlice = 0,
Format = format,
};
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
newTexture.m_ArrayUnorderedAccessViews = new UnorderedAccessView[6 * mips];
for (int m = 0; m < mips; ++m)
{
for (int i = 0; i < 6; ++i)
{
uavDesc.ArraySize = 1;
uavDesc.FirstArraySlice = i;
uavDesc.MipSlice = m;
newTexture.m_ArrayUnorderedAccessViews[6 * m + i] = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
}
}
}
return(newTexture);
}
public void Initialize(Device device, Form form, Panel panel, int resolutionX, int resolutionY)
{
m_ResolutionX = resolutionX;
m_ResolutionY = resolutionY;
m_FullResDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_FullResAndDepthDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = true,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_ResolvedColorDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R8G8B8A8_UNorm,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
};
m_SSAODescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R8_UNorm,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY / 2,
m_Width = resolutionX / 2
};
m_HalfResDescriptor = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16B16A16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY / 2,
m_Width = resolutionX / 2
};
m_SimpleSceneWrapper.Initialize(device, "sponza");
TemporalSurfaceManager.InitializeRenderTarget("SceneMainRender", m_FullResAndDepthDescriptor);
TemporalSurfaceManager.InitializeRenderTarget("ResolvedColor", m_ResolvedColorDescriptor);
TemporalSurfaceManager.InitializeRenderTarget("MotionVectors",
new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = Format.R16G16_Float,
m_HasDepth = false,
m_NumSurfaces = 1,
m_Height = resolutionY,
m_Width = resolutionX
});
m_PostEffectsConstantBuffer = ShaderManager.CreateConstantBufferInstance("PostEffects", device);
m_ForwardPassBuffer = ShaderManager.CreateConstantBufferInstance("ForwardPassBuffer", device);
m_ViewportConstantBuffer = ShaderManager.CreateConstantBufferInstance("GlobalViewportBuffer", device);
m_CurrentViewportBuffer = ShaderManager.CreateConstantBufferInstance("CurrentViewport", device);
Vector3 min, max;
m_SimpleSceneWrapper.GetSceneBounds(out min, out max);
m_GIRenderer = new GlobalIlluminationRenderer(device, min, max);
// Init passes
m_ScatterDOFPass = new ScatterDOFPass();
m_ScatterDOFPass.Initialize(device, resolutionX, resolutionY);
m_ResolveHDRPass = new ResolveHDRPass();
m_ResolveMotionVectorsPass = new ResolveMotionVectorsPass();
m_ResolveTemporalPass = new ResolveTemporalMotionBasedPass();
m_FxaaPass = new FxaaPass();
m_DepthOperationsPass = new DepthOperationsPass(resolutionX, resolutionY);
m_SSAOPass = new SSAOEffectPass(device, resolutionX / 2, resolutionY / 2);
m_SSReflectionsPass = new SSReflectionsEffectPass(device, resolutionX / 2, resolutionY / 2);
m_LuminanceCalculations = new LuminanceCalculations(device, resolutionX, resolutionY);
m_ShadowEVSMGenerator = new ShadowEVSMGenerator();
m_VolumetricFog = new VolumetricFog();
m_VolumetricFog.Initialize(device);
m_StartTime = DateTime.Now;
m_ViewportCamera.BindToInput(form, panel);
POISSON_SAMPLES = new float[POISSON_SAMPLE_NUM * 2]
{
0.655897408497f, 0.95575996511f,
0.944576716895f, 0.455478901428f,
0.203683172197f, 0.0177149729234f,
0.383628747896f, 0.379284571357f,
0.945473563065f, 0.779431977074f,
0.570420562284f, 0.576156483093f,
0.674354533289f, 0.286346887653f,
0.347776132801f, 0.734938485879f,
};
m_CubeObject = TextureObject.CreateCubeTexture(device, 256, 256, 1, Format.R16G16B16A16_Float, false, true);
m_CubeObjectFiltered = TextureObject.CreateCubeTexture(device, 256, 256, 7, Format.R16G16B16A16_Float, false, true);
m_CubeDepthObject = TextureObject.CreateCubeTexture(device, 256, 256, 1, Format.R32_Typeless, true, true);
}
// Static functions
static public TextureObject CreateTexture3DFromFile(Device device, int width, int height, int depth, Format format, string fileName)
{
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_Depth = depth;
newTexture.m_TexFormat = format;
newTexture.m_Mips = 1;
BindFlags bindFlags = BindFlags.ShaderResource | BindFlags.RenderTarget | BindFlags.UnorderedAccess;
ImageLoadInformation imageLoadInfo = new ImageLoadInformation()
{
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
Depth = depth,
MipLevels = 1,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject3D = Texture3D.FromFile(device, fileName, imageLoadInfo);
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 0,
Format = format,
Dimension = ShaderResourceViewDimension.Texture3D,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = 1,
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject3D, srvViewDesc);
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject3D);
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject3D);
return newTexture;
}
// Static functions
static public TextureObject CreateTexture(Device device, int width, int height, int mips, Format format, bool isDepthStencil, bool needsGpuWrite)
{
if (isDepthStencil && format != Format.R32_Typeless && format != Format.R24G8_Typeless)
{
throw new Exception("Unsupported depth format");
}
TextureObject newTexture = new TextureObject();
// Variables
newTexture.m_Width = width;
newTexture.m_Height = height;
newTexture.m_TexFormat = format;
newTexture.m_Mips = mips;
BindFlags bindFlags = BindFlags.ShaderResource;
if (isDepthStencil) bindFlags |= BindFlags.DepthStencil;
if (needsGpuWrite && !isDepthStencil) bindFlags |= BindFlags.RenderTarget;
if (needsGpuWrite && !isDepthStencil) bindFlags |= BindFlags.UnorderedAccess;
Texture2DDescription textureDescription = new Texture2DDescription
{
ArraySize = 1,
BindFlags = bindFlags,
CpuAccessFlags = CpuAccessFlags.None,
Format = format,
Height = height,
Width = width,
MipLevels = mips,
OptionFlags = (mips > 1 && needsGpuWrite) ? ResourceOptionFlags.GenerateMipMaps : ResourceOptionFlags.None,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default
};
newTexture.m_TextureObject2D = new Texture2D(device, textureDescription);
Format srvFormat = format;
// Special case for depth
if (isDepthStencil)
{
srvFormat = (format == Format.R32_Typeless) ? Format.R32_Float : Format.R24_UNorm_X8_Typeless;
}
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 0,
Format = srvFormat,
Dimension = ShaderResourceViewDimension.Texture2D,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = mips
};
newTexture.m_ShaderResourceView = new ShaderResourceView(device, newTexture.m_TextureObject2D, srvViewDesc);
if (isDepthStencil)
{
DepthStencilViewDescription dsViewDesc = new DepthStencilViewDescription
{
ArraySize = 0,
Format = (format == Format.R32_Typeless) ? Format.D32_Float : Format.D24_UNorm_S8_UInt,
Dimension = DepthStencilViewDimension.Texture2D,
MipSlice = 0,
Flags = 0,
FirstArraySlice = 0
};
newTexture.m_DepthStencilView = new DepthStencilView(device, newTexture.m_TextureObject2D, dsViewDesc);
}
// No RTV for depth stencil, sorry
if (needsGpuWrite && !isDepthStencil)
{
newTexture.m_RenderTargetView = new RenderTargetView(device, newTexture.m_TextureObject2D);
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 0,
DepthSliceCount = 1,
Dimension = UnorderedAccessViewDimension.Texture2D,
ElementCount = 1,
FirstArraySlice = 0,
FirstDepthSlice = 0,
FirstElement = 0,
Flags = UnorderedAccessViewBufferFlags.None,
Format = format,
MipSlice = 0
};
newTexture.m_UnorderedAccessView = new UnorderedAccessView(device, newTexture.m_TextureObject2D, uavDesc);
}
return newTexture;
}
public void AddUAV(TextureObject uavSource)
{
m_UAVs[m_UAVsNum++] = uavSource;
}
