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Port Morten's orthographic FPTL changes to HDRP

/main
Evgenii Golubev 7 年前
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845d5061
共有 7 个文件被更改,包括 107 次插入39 次删除
  1. 1
      Assets/ScriptableRenderPipeline/HDRenderPipeline/HDShaderIDs.cs
  2. 10
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/LightingConvexHullUtils.hlsl
  3. 6
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/TilePass.cs
  4. 43
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild-bigtile.compute
  5. 43
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild-clustered.compute
  6. 33
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild.compute
  7. 10
      Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/scrbound.compute

1
Assets/ScriptableRenderPipeline/HDRenderPipeline/HDShaderIDs.cs


internal static readonly int g_LayeredSingleIdxBuffer = Shader.PropertyToID("g_LayeredSingleIdxBuffer");
internal static readonly int _EnvLightIndexShift = Shader.PropertyToID("_EnvLightIndexShift");
internal static readonly int g_isOrthographic = Shader.PropertyToID("g_isOrthographic");
internal static readonly int g_iNrVisibLights = Shader.PropertyToID("g_iNrVisibLights");
internal static readonly int g_mScrProjection = Shader.PropertyToID("g_mScrProjection");
internal static readonly int g_mInvScrProjection = Shader.PropertyToID("g_mInvScrProjection");

10
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/LightingConvexHullUtils.hlsl


return float4(vN, -dot(vN,p0));
}
bool DoesSphereOverlapTile(float3 dir, float halfTileSizeAtZDistOne, float3 sphCen, float sphRadiusIn)
bool DoesSphereOverlapTile(float3 dir, float halfTileSizeAtZDistOne, float3 sphCen_in, float sphRadiusIn, bool isOrthographic)
float3 V = dir; // ray direction down center of tile (does not need to be normalized).
float3 V = float3(isOrthographic ? 0.0 : dir.x, isOrthographic ? 0.0 : dir.y, dir.z); // ray direction down center of tile (does not need to be normalized).
float3 sphCen = float3(sphCen_in.x - (isOrthographic ? dir.x : 0.0), sphCen_in.y - (isOrthographic ? dir.y : 0.0), sphCen_in.z);
#if 1
float3 maxZdir = float3(-sphCen.z*sphCen.x, -sphCen.z*sphCen.y, sphCen.x*sphCen.x + sphCen.y*sphCen.y); // cross(sphCen,cross(Zaxis,sphCen))

// enlarge sphere so it overlaps the center of the tile assuming it overlaps the tile to begin with.
#if USE_LEFT_HAND_CAMERA_SPACE
float sphRadius = sphRadiusIn + (sphCen.z+offs)*halfTileSizeAtZDistOne;
float s = sphCen.z+offs;
float sphRadius = sphRadiusIn - (sphCen.z-offs)*halfTileSizeAtZDistOne;
float s = -(sphCen.z-offs);
float sphRadius = sphRadiusIn + (isOrthographic ? 1.0 : s)*halfTileSizeAtZDistOne;
float a = dot(V,V);
float CdotV = dot(sphCen,V);

6
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/TilePass.cs


cmd.SetComputeBufferParam(buildPerVoxelLightListShader, s_ClearVoxelAtomicKernel, HDShaderIDs.g_LayeredSingleIdxBuffer, s_GlobalLightListAtomic);
cmd.DispatchCompute(buildPerVoxelLightListShader, s_ClearVoxelAtomicKernel, 1, 1, 1);
bool isOrthographic = camera.orthographic;
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
cmd.SetComputeIntParam(buildPerVoxelLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
cmd.SetComputeMatrixParam(buildPerVoxelLightListShader, HDShaderIDs.g_mScrProjection, projscr);

temp.SetRow(3, new Vector4(0.0f, 0.0f, 0.0f, 1.0f));
var projscr = temp * proj;
var invProjscr = projscr.inverse;
bool isOrthographic = camera.orthographic;
cmd.SetRenderTarget(new RenderTargetIdentifier((Texture)null));

var projh = temp * proj;
var invProjh = projh.inverse;
cmd.SetComputeIntParam(buildScreenAABBShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
cmd.SetComputeIntParam(buildScreenAABBShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);
cmd.SetComputeBufferParam(buildScreenAABBShader, s_GenAABBKernel, HDShaderIDs.g_data, s_ConvexBoundsBuffer);

// enable coarse 2D pass on 64x64 tiles (used for both fptl and clustered).
if (m_TileSettings.enableBigTilePrepass)
{
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
cmd.SetComputeIntParams(buildPerBigTileLightListShader, HDShaderIDs.g_viDimensions, w, h);
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
cmd.SetComputeIntParam(buildPerBigTileLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);

if (usingFptl) // optimized for opaques only
{
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs.g_isOrthographic, isOrthographic ? 1 : 0);
cmd.SetComputeIntParams(buildPerTileLightListShader, HDShaderIDs.g_viDimensions, w, h);
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs._EnvLightIndexShift, m_lightList.lights.Count);
cmd.SetComputeIntParam(buildPerTileLightListShader, HDShaderIDs.g_iNrVisibLights, m_lightCount);

43
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild-bigtile.compute


uniform float4x4 g_mScrProjection;
uniform float g_fNearPlane;
uniform float g_fFarPlane;
uniform uint g_isOrthographic;
uniform int _EnvLightIndexShift;
StructuredBuffer<float3> g_vBoundsBuffer : register( t1 );

groupshared unsigned int lightsListLDS[MAX_NR_BIG_TILE_LIGHTS_PLUS_ONE];
groupshared uint lightOffs;
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float3 vP = float3(0.0f,0.0f,zDptBufSpace);
float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
return v4Pres.z / v4Pres.w;
}
// for perspective projection m22 is zero and m23 is +1/-1 (depends on left/right hand proj)
// however this function must also work for orthographic projection so we keep it like this.
float m22 = g_mInvScrProjection[2].z, m23 = g_mInvScrProjection[2].w;
float m32 = g_mInvScrProjection[3].z, m33 = g_mInvScrProjection[3].w;
return (m22*zDptBufSpace+m23) / (m32*zDptBufSpace+m33);
//float3 vP = float3(0.0f,0.0f,zDptBufSpace);
//float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
//return v4Pres.z / v4Pres.w;
}
bool isOrthographic = g_isOrthographic!=0;
float fCx = g_mScrProjection[0].z;
float fCy = g_mScrProjection[1].z;
float fCx = isOrthographic ? g_mScrProjection[0].w : g_mScrProjection[0].z;
float fCy = isOrthographic ? g_mScrProjection[1].w : g_mScrProjection[1].z;
return fLinDepth*float3( ((v2ScrPos.x-fCx)/fSx), ((v2ScrPos.y-fCy)/fSy), 1.0 );
bool useLeftHandVersion = true;
return fLinDepth*float3( -((v2ScrPos.x+fCx)/fSx), -((v2ScrPos.y+fCy)/fSy), 1.0 );
bool useLeftHandVersion = isOrthographic;
float s = useLeftHandVersion ? 1 : (-1);
float2 p = float2( (s*v2ScrPos.x-fCx)/fSx, (s*v2ScrPos.y-fCy)/fSy);
return float3(isOrthographic ? p.xy : (fLinDepth*p.xy), fLinDepth);
}
float GetOnePixDiagWorldDistAtDepthOne()

{
SFiniteLightBound lgtDat = g_data[lightsListLDS[l]];
if( !DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lgtDat.center.xyz, lgtDat.radius) )
if( !DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lgtDat.center.xyz, lgtDat.radius, g_isOrthographic!=0) )
lightsListLDS[l]=0xffffffff;
}

int i=iSwizzle + (2*(iSection&0x2)); // offset by 4 at section 2
vP0 = GetTileVertex(uint2(viTilLL.x, viTilUR.y), uint2(viTilUR.x, viTilLL.y), i, fTileFarPlane);
vE0 = iSection == 0 ? vP0 : (((iSwizzle & 0x2) == 0 ? 1.0f : (-1.0f)) * ((int)(iSwizzle & 0x1) == (iSwizzle >> 1) ? float3(1, 0, 0) : float3(0, 1, 0)));
#if USE_LEFT_HAND_CAMERA_SPACE
float3 edgeSectionZero = g_isOrthographic==0 ? vP0 : float3(0.0,0.0,1.0);
#else
float3 edgeSectionZero = g_isOrthographic==0 ? vP0 : float3(0.0,0.0,-1.0);
#endif
vE0 = iSection == 0 ? edgeSectionZero : (((iSwizzle & 0x2) == 0 ? 1.0f : (-1.0f)) * ((int)(iSwizzle & 0x1) == (iSwizzle >> 1) ? float3(1, 0, 0) : float3(0, 1, 0)));
}
void CullByExactEdgeTests(uint threadID, int iNrCoarseLights, uint2 viTilLL, uint2 viTilUR)

43
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild-clustered.compute


int g_iNrVisibLights;
float4x4 g_mInvScrProjection;
float4x4 g_mScrProjection;
uint g_isOrthographic;
int _EnvLightIndexShift;
float g_fClustScale;

groupshared uint lightOffsSph;
#endif
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float3 vP = float3(0.0f,0.0f,zDptBufSpace);
float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
return v4Pres.z / v4Pres.w;
// for perspective projection m22 is zero and m23 is +1/-1 (depends on left/right hand proj)
// however this function must also work for orthographic projection so we keep it like this.
float m22 = g_mInvScrProjection[2].z, m23 = g_mInvScrProjection[2].w;
float m32 = g_mInvScrProjection[3].z, m33 = g_mInvScrProjection[3].w;
return (m22*zDptBufSpace+m23) / (m32*zDptBufSpace+m33);
//float3 vP = float3(0.0f,0.0f,zDptBufSpace);
//float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
//return v4Pres.z / v4Pres.w;
bool isOrthographic = g_isOrthographic!=0;
float fCx = g_mScrProjection[0].z;
float fCy = g_mScrProjection[1].z;
float fCx = isOrthographic ? g_mScrProjection[0].w : g_mScrProjection[0].z;
float fCy = isOrthographic ? g_mScrProjection[1].w : g_mScrProjection[1].z;
return fLinDepth*float3( ((v2ScrPos.x-fCx)/fSx), ((v2ScrPos.y-fCy)/fSy), 1.0 );
bool useLeftHandVersion = true;
return fLinDepth*float3( -((v2ScrPos.x+fCx)/fSx), -((v2ScrPos.y+fCy)/fSy), 1.0 );
bool useLeftHandVersion = isOrthographic;
float s = useLeftHandVersion ? 1 : (-1);
float2 p = float2( (s*v2ScrPos.x-fCx)/fSx, (s*v2ScrPos.y-fCy)/fSy);
return float3(isOrthographic ? p.xy : (fLinDepth*p.xy), fLinDepth);
}
float GetOnePixDiagWorldDistAtDepthOne()

{
SFiniteLightBound lgtDat = g_data[coarseList[l]];
if( !DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lgtDat.center.xyz, lgtDat.radius) )
if( !DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lgtDat.center.xyz, lgtDat.radius, g_isOrthographic!=0) )
coarseList[l]=0xffffffff;
}

int i=iSwizzle + (2*(iSection&0x2)); // offset by 4 at section 2
vP0 = GetTileVertex(uint2(viTilLL.x, viTilUR.y), uint2(viTilUR.x, viTilLL.y), i, fTileFarPlane);
vE0 = iSection==0 ? vP0 : (((iSwizzle&0x2)==0 ? 1.0f : (-1.0f))*((iSwizzle&0x1)==(iSwizzle>>1) ? float3(1,0,0) : float3(0,1,0)));
#if USE_LEFT_HAND_CAMERA_SPACE
float3 edgeSectionZero = g_isOrthographic==0 ? vP0 : float3(0.0,0.0,1.0);
#else
float3 edgeSectionZero = g_isOrthographic==0 ? vP0 : float3(0.0,0.0,-1.0);
#endif
vE0 = iSection == 0 ? edgeSectionZero : (((iSwizzle & 0x2) == 0 ? 1.0f : (-1.0f)) * ((int)(iSwizzle & 0x1) == (iSwizzle >> 1) ? float3(1, 0, 0) : float3(0, 1, 0)));
}
int CullByExactEdgeTests(uint threadID, int iNrCoarseLights, uint2 viTilLL, uint2 viTilUR, float fTileFarPlane)

33
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/lightlistbuild.compute


uniform uint2 g_viDimensions;
uniform float4x4 g_mInvScrProjection;
uniform float4x4 g_mScrProjection;
uniform uint g_isOrthographic;
uniform int _EnvLightIndexShift;
uniform uint g_BaseFeatureFlags;

// return v4Pres.z / v4Pres.w;
//}
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
float3 vP = float3(0.0f,0.0f,zDptBufSpace);
float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
return v4Pres.z / v4Pres.w;
}
// for perspective projection m22 is zero and m23 is +1/-1 (depends on left/right hand proj)
// however this function must also work for orthographic projection so we keep it like this.
float m22 = g_mInvScrProjection[2].z, m23 = g_mInvScrProjection[2].w;
float m32 = g_mInvScrProjection[3].z, m33 = g_mInvScrProjection[3].w;
return (m22*zDptBufSpace+m23) / (m32*zDptBufSpace+m33);
//float3 vP = float3(0.0f,0.0f,zDptBufSpace);
//float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
//return v4Pres.z / v4Pres.w;
}
bool isOrthographic = g_isOrthographic!=0;
float fCx = g_mScrProjection[0].z;
float fCy = g_mScrProjection[1].z;
float fCx = isOrthographic ? g_mScrProjection[0].w : g_mScrProjection[0].z;
float fCy = isOrthographic ? g_mScrProjection[1].w : g_mScrProjection[1].z;
return fLinDepth*float3( ((v2ScrPos.x-fCx)/fSx), ((v2ScrPos.y-fCy)/fSy), 1.0 );
bool useLeftHandVersion = true;
return fLinDepth*float3( -((v2ScrPos.x+fCx)/fSx), -((v2ScrPos.y+fCy)/fSy), 1.0 );
bool useLeftHandVersion = isOrthographic;
float s = useLeftHandVersion ? 1 : (-1);
float2 p = float2( (s*v2ScrPos.x-fCx)/fSx, (s*v2ScrPos.y-fCy)/fSy);
return float3(isOrthographic ? p.xy : (fLinDepth*p.xy), fLinDepth);
}
float GetOnePixDiagWorldDistAtDepthOne()

{
SFiniteLightBound lightData = g_data[prunedList[l]];
if( DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lightData.center.xyz, lightData.radius) )
if( DoesSphereOverlapTile(V, halfTileSizeAtZDistOne, lightData.center.xyz, lightData.radius, g_isOrthographic!=0) )
{
unsigned int uIndex;
InterlockedAdd(lightOffsSph, 1, uIndex);

10
Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/TilePass/scrbound.compute


#include "../../../ShaderLibrary/common.hlsl"
#include "TilePass.cs.hlsl"
uniform int g_isOrthographic;
uniform int g_iNrVisibLights;
uniform float4x4 g_mInvProjection;
uniform float4x4 g_mProjection;

else
{
//if((center.z+radius)<0.0)
if( length(center)>radius)
if(g_isOrthographic==0 && length(center)>radius)
{
float2 vMi, vMa;
bool2 bMi, bMa;

vMax.xy = bMa ? min(vMax.xy, vMa) : vMax.xy;
}
else if(g_isOrthographic!=0)
{
float2 vMi = mul(g_mProjection, float4(center.xyz-radius,1)).xy; // no division needed for ortho
float2 vMa = mul(g_mProjection, float4(center.xyz+radius,1)).xy; // no division needed for ortho
vMin.xy = max(vMin.xy, vMi);
vMax.xy = min(vMax.xy, vMa);
}
#if USE_LEFT_HAND_CAMERA_SPACE

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