/// <summary>
///
/// </summary>
/// <param name="rtCube"></param>
public void CopyFromRenderTargetCube(int index, RenderTargetCube rtCube)
{
if (rtCube.MipCount != this.MipCount)
{
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different mip count");
}
if (rtCube.Width != this.Width)
{
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different width");
}
if (rtCube.Height != this.Height)
{
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different height");
}
int subResourceCount = 6 * rtCube.MipCount;
for (int i = 0; i < subResourceCount; i++)
{
int srcIndex = i;
int dstIndex = i + subResourceCount * index;
GraphicsDevice.DeviceContext.CopySubresourceRegion(rtCube.TextureResource, srcIndex, null, texCubeArray, dstIndex);
}
}
/// <summary>
///
/// </summary>
/// <param name="rtCube"></param>
public void CopyFromRenderTargetCube ( int index, RenderTargetCube rtCube )
{
if (rtCube.MipCount!=this.MipCount) {
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different mip count");
}
if (rtCube.Width!=this.Width) {
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different width");
}
if (rtCube.Height!=this.Height) {
throw new GraphicsException("CopyFromRenderTargetCube: source and destination have different height");
}
int subResourceCount = 6 * rtCube.MipCount;
for (int i=0; i<subResourceCount; i++) {
int srcIndex = i;
int dstIndex = i + subResourceCount * index;
GraphicsDevice.DeviceContext.CopySubresourceRegion( rtCube.TextureResource, srcIndex, null, texCubeArray, dstIndex );
}
}
/// <summary>
///
/// </summary>
/// <param name="dst"></param>
/// <param name="cubeSrc"></param>
/// <param name="sampleCount"></param>
public void PrefilterEnvMap ( RenderTargetCube envMap )
{
SetDefaultRenderStates();
int width = envMap.Width / 2;
int height = envMap.Height / 2;
using( new PixEvent("PrefilterEnvMap") ) {
var sides = new[]{ ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.POSX, ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.NEGX,
ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.POSY, ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.NEGY,
ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.POSZ, ShaderFlags.PREFILTER_ENVMAP | ShaderFlags.NEGZ };
// loop through mip levels from second to last specular mip level :
for (int mip=1; mip<RenderSystem.EnvMapSpecularMipCount; mip++) {
float roughness = (float)mip / (float)(RenderSystem.EnvMapSpecularMipCount-1);
float step = 1.0f / width;
vectorCB.SetData( new Vector4( roughness, step,0,0 ) );
for (int face=0; face<6; face++) {
rs.SetTargets( null, envMap.GetSurface( mip, (CubeFace)face ) );
rs.SetViewport( 0,0, width, height );
rs.PixelShaderConstants[0] = vectorCB;
rs.PipelineState = factory[ (int)sides[face] ];
rs.VertexShaderResources[0] = envMap.GetCubeShaderResource( mip-1 );
rs.PixelShaderResources[0] = envMap.GetCubeShaderResource( mip-1 );
rs.PixelShaderSamplers[0] = SamplerState.LinearWrap;
rs.VertexShaderConstants[0] = matrixCB;
rs.Draw( 3, 0 );
}
width /= 2;
height /= 2;
}
}
rs.ResetStates();
}
/// <summary>
///
/// </summary>
public override void Initialize()
{
skyCube = new RenderTargetCube( rs, ColorFormat.Rgba16F, 128, true );
skyConstsCB = new ConstantBuffer( rs, typeof(SkyConsts) );
LoadContent();
Game.Reloading += (s,e) => LoadContent();
var skySphere = SkySphere.GetVertices(4).Select( v => new SkyVertex{ Vertex = v } ).ToArray();
skyVB = new VertexBuffer( Game.GraphicsDevice, typeof(SkyVertex), skySphere.Length );
skyVB.SetData( skySphere );
randVectors = new Vector3[64];
for (int i=0; i<randVectors.Length; i++) {
Vector3 randV;
do {
randV = rand.NextVector3( -Vector3.One, Vector3.One );
} while ( randV.Length()>1 && randV.Y < 0 );
randVectors[i] = randV.Normalized();
}
}
/// <summary>
///
/// </summary>
/// <param name="view"></param>
/// <param name="projection"></param>
internal void RenderLighting ( StereoEye stereoEye, Camera camera, HdrFrame hdrFrame, RenderWorld viewLayer, RenderTargetCube envLight )
{
using ( new PixEvent("TiledLighting") ) {
var view = camera.GetViewMatrix( stereoEye );
var projection = camera.GetProjectionMatrix( stereoEye );
var device = Game.GraphicsDevice;
device.ResetStates();
var width = hdrFrame.HdrBuffer.Width;
var height = hdrFrame.HdrBuffer.Height;
ICSMController csmCtrl = viewLayer.LightSet.DirectLight.CSMController ?? csmController;
int activeCascadeCount = Math.Min( cascadedShadowMap.CascadeCount, csmCtrl.GetActiveCascadeCount() );
//
// Setup compute shader parameters and states :
//
try {
var cbData = new LightingParams();
var invView = Matrix.Invert( view );
var invVP = Matrix.Invert( view * projection );
var viewPos = invView.TranslationVector;
cbData.DirectLightDirection = new Vector4( viewLayer.LightSet.DirectLight.Direction, 0 );
cbData.DirectLightIntensity = viewLayer.LightSet.DirectLight.Intensity.ToVector4();
cbData.Projection = projection;
cbData.CSMViewProjection0 = csmCtrl.GetShadowViewMatrix(0) * csmCtrl.GetShadowProjectionMatrix(0);
cbData.CSMViewProjection1 = csmCtrl.GetShadowViewMatrix(1) * csmCtrl.GetShadowProjectionMatrix(1);
cbData.CSMViewProjection2 = csmCtrl.GetShadowViewMatrix(2) * csmCtrl.GetShadowProjectionMatrix(2);
cbData.CSMViewProjection3 = csmCtrl.GetShadowViewMatrix(3) * csmCtrl.GetShadowProjectionMatrix(3);
cbData.View = view;
cbData.ViewPosition = new Vector4(viewPos,1);
cbData.InverseViewProjection = invVP;
cbData.CSMFilterRadius = new Vector4( CSMFilterSize );
cbData.AmbientColor = viewLayer.LightSet.AmbientLevel;
cbData.Viewport = new Vector4( 0, 0, width, height );
cbData.ShowCSLoadOmni = ShowOmniLightTileLoad ? 1 : 0;
cbData.ShowCSLoadEnv = ShowEnvLightTileLoad ? 1 : 0;
cbData.ShowCSLoadSpot = ShowSpotLightTileLoad ? 1 : 0;
cbData.CascadeCount = activeCascadeCount;
cbData.CascadeScale = 1.0f / (float)cascadedShadowMap.CascadeCount;
ComputeOmniLightsTiles( view, projection, viewLayer.LightSet );
ComputeSpotLightsTiles( view, projection, viewLayer.LightSet );
ComputeEnvLightsTiles( view, projection, viewLayer.LightSet );
//
// set states :
//
device.SetTargets( null, hdrFrame.HdrBuffer.Surface );
lightingCB.SetData( cbData );
device.ComputeShaderSamplers[0] = SamplerState.PointClamp;
device.ComputeShaderSamplers[1] = SamplerState.LinearClamp;
device.ComputeShaderSamplers[2] = SamplerState.ShadowSampler;
device.ComputeShaderSamplers[3] = SamplerState.LinearPointWrap;
device.ComputeShaderResources[0] = hdrFrame.DiffuseBuffer;
device.ComputeShaderResources[1] = hdrFrame.SpecularBuffer;
device.ComputeShaderResources[2] = hdrFrame.NormalMapBuffer;
device.ComputeShaderResources[3] = hdrFrame.ScatteringBuffer;
device.ComputeShaderResources[4] = hdrFrame.DepthBuffer;
device.ComputeShaderResources[5] = cascadedShadowMap.ColorBuffer;
device.ComputeShaderResources[6] = spotColor;
device.ComputeShaderResources[7] = viewLayer.LightSet.SpotAtlas==null ? rs.WhiteTexture.Srv : viewLayer.LightSet.SpotAtlas.Texture.Srv;
device.ComputeShaderResources[8] = omniLightBuffer;
device.ComputeShaderResources[9] = spotLightBuffer;
device.ComputeShaderResources[10] = envLightBuffer;
device.ComputeShaderResources[11] = rs.SsaoFilter.OcclusionMap;
device.ComputeShaderResources[12] = viewLayer.RadianceCache;
device.ComputeShaderResources[13] = viewLayer.ParticleSystem.SimulatedParticles;
device.ComputeShaderResources[14] = cascadedShadowMap.ParticleShadow;
device.ComputeShaderConstants[0] = lightingCB;
device.SetCSRWTexture( 0, hdrFrame.LightAccumulator.Surface );
device.SetCSRWTexture( 1, hdrFrame.SSSAccumulator.Surface );
device.SetCSRWBuffer( 2, viewLayer.ParticleSystem.ParticleLighting );
//
// Dispatch solids :
//
using (new PixEvent("Solid Lighting")) {
device.PipelineState = factory[ (int)LightingFlags.SOLIDLIGHTING ];
device.Dispatch( MathUtil.IntDivUp( width, BlockSizeX ), MathUtil.IntDivUp( height, BlockSizeY ), 1 );
}
//
// Dispatch particles :
//
using (new PixEvent("Particle Lighting")) {
if (stereoEye!=StereoEye.Right) {
int threadGroupCount = MathUtil.IntDivUp( ParticleSystem.MaxSimulatedParticles, ParticleSystem.BlockSize );
device.PipelineState = factory[ (int)LightingFlags.PARTICLES ];
device.Dispatch( threadGroupCount, 1, 1 );
}
}
} catch ( UbershaderException e ) {
Log.Warning("{0}", e.Message );
}
//
// Add accumulated light :
//
rs.Filter.OverlayAdditive( hdrFrame.HdrBuffer.Surface, hdrFrame.LightAccumulator );
// Uncomment to enable SSS :
#if false
rs.Filter.GaussBlur( hdrFrame.SSSAccumulator, hdrFrame.LightAccumulator, 5, 0 );
rs.Filter.OverlayAdditive( hdrFrame.HdrBuffer.Surface, hdrFrame.SSSAccumulator );
#endif
device.ResetStates();
if (rs.ShowLightCounters) {
var ls = viewLayer.LightSet;
Log.Message("lights: {0,5} omni {1,5} spot {2,5} env", ls.OmniLights.Count, ls.SpotLights.Count, ls.EnvLights.Count );
}
}
}
/// <summary>
/// Creates ViewLayerHDR instance
/// </summary>
/// <param name="Game">Game engine</param>
/// <param name="width">Target width.</param>
/// <param name="height">Target height.</param>
public RenderWorld ( Game game, int width, int height ) : base( game )
{
var vp = Game.GraphicsDevice.DisplayBounds;
if (width<=0) {
width = vp.Width;
}
if (height<=0) {
height = vp.Height;
}
HdrSettings = new HdrSettings();
SkySettings = new SkySettings();
DofSettings = new DofSettings();
Instances = new List<MeshInstance>();
LightSet = new LightSet( Game.RenderSystem );
debug = new DebugRender( Game );
particleSystem = new ParticleSystem( Game.RenderSystem, this );
MeasuredOld = new RenderTarget2D( Game.GraphicsDevice, ColorFormat.Rgba32F, 1, 1 );
MeasuredNew = new RenderTarget2D( Game.GraphicsDevice, ColorFormat.Rgba32F, 1, 1 );
radianceFrame = new HdrFrame( Game, 512,512 );
Radiance = new RenderTargetCube( Game.GraphicsDevice, ColorFormat.Rgba16F, RenderSystem.EnvMapSize, true );
RadianceCache = new TextureCubeArray( Game.GraphicsDevice, 128, RenderSystem.MaxEnvLights, ColorFormat.Rgba16F, true );
Resize( width, height );
}
