Implements Cascaded Shadow Maps with using Texture Array
Download as PPTX, PDF3 likes2,620 views
Describe the method that implements Cascaded Shadow Maps with using Texture Array.
![Using Texture Array as RTV
struct PS_OUT_TEX_ARRAY
{
float4 Pos : SV_POSITION;
uint RTIndex : SV_RenderTargetArrayIndex;
};
[maxvertexcount(3)]
void gsDefault ( triangle GS_INPUT input[3], inout TriangleStream<PS_OUT_TEX_ARRAY> TriStream )
{
PS_OUT_TEX_ARRAY output;
for (uint i=0; i<3; i++)
{
output.Pos = mul(input[i].PosWorld,matViewProjList[i]);
output.RTIndex = N;
TriStream.Append(output[j]);
}
TriStream.RestartStrip();
}](https://image.slidesharecdn.com/cascadedshadowmapwithtexturearray-161011130430/85/Implements-Cascaded-Shadow-Maps-with-using-Texture-Array-13-320.jpg)
![cbuffer ConstantBufferShadowMap : register( b0 )
{
matrix matWorld;
matrix matViewList[MAX_CASCADE_NUM];
matrix matProjList[MAX_CASCADE_NUM];
}
struct PS_OUT_TEX_ARRAY
{
float4 Pos : SV_POSITION;
uint RTIndex : SV_RenderTargetArrayIndex;
};
struct GS_INPUT
{
float4 PosWorld: POSITION;
};
Shader Code Pass 0 , Shadow Caster](https://image.slidesharecdn.com/cascadedshadowmapwithtexturearray-161011130430/85/Implements-Cascaded-Shadow-Maps-with-using-Texture-Array-17-320.jpg)
![float4 vsShadowCaster( VS_INPUT_VL input ) : POSITION
{
float4 PosWorld = mul( input.Pos, matWorld );
return PosWorld;
}
[maxvertexcount(3*MAX_CASCADE_NUM)]
void gsShadowCaster( triangle GS_INPUT input[3], inout TriangleStream<PS_OUT_TEX_ARRAY> TriStream )
{
PS_OUT_TEX_ARRAY output[3];
for (uint i=0; i<MAX_CASCADE_NUM; i++ )
{
for (uint j=0; j<3; j++)
{
float4 PosView = mul(input[j].PosWorld,matViewList[i]);
PosView.z += 2.5f; // bias value
output[j].Pos = mul(PosView,matProjList[i]);
output[j].RTIndex = i;
TriStream.Append(output[j]);
}
TriStream.RestartStrip();
}
}
Shader Code Pass 0 , Shadow Caster](https://image.slidesharecdn.com/cascadedshadowmapwithtexturearray-161011130430/85/Implements-Cascaded-Shadow-Maps-with-using-Texture-Array-18-320.jpg)
![cbuffer ConstantBufferGBufferShader : register (b0)
{
matrix ViewInv;
matrix matShadowViewProjCascade[MAX_CASCADE_NUM];
CASCADE_CONSTNAT CascadeConst[MAX_CASCADE_NUM];
};
Texture2DArray texShadowMap: register(t2);
SamplerComparisonState samplerComp : register(s2);
void CalcIndex(out float OutIndex, in float Dist)
{
uint index = MAX_CASCADE_NUM - 1;
for (uint i = 0; i < MAX_CASCADE_NUM; i++)
{
if (Dist <= CascadeConst[i].Dist)
{
index = i;
break;
}
}
OutIndex = index;
}
Shader Code Pass 1 , Shadow Receiver](https://image.slidesharecdn.com/cascadedshadowmapwithtexturearray-161011130430/85/Implements-Cascaded-Shadow-Maps-with-using-Texture-Array-19-320.jpg)
![float3 CalcShadowColor3x3(Texture2DArray texShadowMap, SamplerComparisonState samplerComp, float4 PosWorld, float Dist)
{
float3 shadowColor = float3(1, 1, 1);
uint index;
CalcIndex(index, Dist);
float4 PosShadowSpace = mul(PosWorld, matShadowViewProjCascade[index]);
float4 texCoord = PosShadowSpace / PosShadowSpace.w;
float cmp_z = texCoord.z;
float litSum = 0;
int2 offset[9] = {-1,-1, 0,-1, 1,-1, -1,0, 0,0, 1,0, -1,1, 0,1, 1,1 };
for (int i = 0; i < 9; i++)
{
litSum += texShadowMap.SampleCmpLevelZero(samplerComp, float3(texCoord.xy,index), cmp_z, offset[i]);
}
float shadowValue = litSum / 9.0f;
shadowColor = lerp(float3(0,0,0), float3(1, 1, 1), shadowValue);
return shadowColor;
}
Shader Code Pass 1 , Shadow Receiver](https://image.slidesharecdn.com/cascadedshadowmapwithtexturearray-161011130430/85/Implements-Cascaded-Shadow-Maps-with-using-Texture-Array-20-320.jpg)
![[Ndc11 覦覩手啓] deferred shading](https://cdn.slidesharecdn.com/ss_thumbnails/ndc11deferredshading-110602220043-phpapp01-thumbnail.jpg?width=560&fit=bounds)
![[Kgc2012] deferred forward 伎綾](https://cdn.slidesharecdn.com/ss_thumbnails/kgc2012deferredforward-121010214035-phpapp02-thumbnail.jpg?width=560&fit=bounds)
![[Ndc12] 蟲 蠍一 hdr螻 るУ 覦覩手啓](https://cdn.slidesharecdn.com/ss_thumbnails/ndc12hdr-120426040134-phpapp02-thumbnail.jpg?width=560&fit=bounds)
![[0107 覦覩手啓] 所 覦一磯 hdr螻 るУ](https://cdn.slidesharecdn.com/ss_thumbnails/0107hdr-120109223948-phpapp01-thumbnail.jpg?width=560&fit=bounds)
![[0122 蟲蟆曙]蟆 豢豌襴](https://cdn.slidesharecdn.com/ss_thumbnails/random-110127021824-phpapp02-thumbnail.jpg?width=560&fit=bounds)
More Related Content
What's hot (20)
Viewers also liked (11)
![[0602 覦覩手啓] Direct2D](https://cdn.slidesharecdn.com/ss_thumbnails/0602direct2d-110602111737-phpapp01-thumbnail.jpg?width=560&fit=bounds)
![[る語ろ磯] 蠏朱 螻 伎](https://cdn.slidesharecdn.com/ss_thumbnails/smartstudy-fullremote-201506-150622075512-lva1-app6892-thumbnail.jpg?width=560&fit=bounds)
![[NDC12] 蟆 覓朱Μ 讌 企 襴 危](https://cdn.slidesharecdn.com/ss_thumbnails/ndc12-120424073025-phpapp02-thumbnail.jpg?width=560&fit=bounds)
Similar to Implements Cascaded Shadow Maps with using Texture Array (20)
![[14.10.21] Far Cry and DX9 覯(shaderstudy)](https://cdn.slidesharecdn.com/ss_thumbnails/14-141023194640-conversion-gate02-thumbnail.jpg?width=560&fit=bounds)
![[ShaderX5] 4.4 Edge Masking and Per-Texel Depth Extent Propagation For Comput...](https://cdn.slidesharecdn.com/ss_thumbnails/shaderx5-44-090608100532-phpapp01-thumbnail.jpg?width=560&fit=bounds)
![[0312 譟一] good bye dx9](https://cdn.slidesharecdn.com/ss_thumbnails/0312good-byedx9-110328070820-phpapp02-thumbnail.jpg?width=560&fit=bounds)
More from YEONG-CHEON YOU (17)
Implements Cascaded Shadow Maps with using Texture Array
- 1. Texture Array襯 伎 Cascaded Shadow Maps 豌 Microsoft Visual C++ MVP tw:@dgtman http://megayuchi.wordpress.com
- 3. 蟯(蠏碁殊襯 襴) 觀郁概螳 Shadow Caster螳 る碁(轟 豌) 襷 -> Depth Buffer(Texture)襯 蟲 蟲 Pass 0 , Shadow Caster
- 4. 蟲 Pass 1 , Shadow Receiver 蟯(蠏碁殊襯 襴) View- Space襦 覲. -1 ~ 1伎 譬螻糾 0 1企 覲. 覲 (0 1) 譬襦 Depth Buffer襦覿 depth螳 襷 Receiver depth螳螻 Depth Buffer depth螳 觜蟲 receiver_z > depth_value -> 蠏碁殊螳 襴讌
- 5. Shadow Map in Shadow Space On Rendering in Camera Space Shadow Map applied Shader Resource View Sampling z-value from Shadow Map Compare z-value and per pixel.
- 6. レ Texture襦 螻糾 蠍一 伎螳 覿譟燕. Texture 伎襯 蟆? -> 讌レ, But 焔 , GPU覃覈襴 觜 PSM, TSM, LiPSM 焔 レ Texture襷 覃伎 豕 觜 蠍磯 煙 蠏碁 郁鍵 所 覓語螳
- 7. Shadow Map 襷 レ Texture螳 レ Texture 蠏碁Μ. 觀壱ろ 螳 螻糾朱 殊 レ Shadow Map Texture襯 . 螳蟾 螻 襾 磯 Shadow Map 覦 譟一 螳. Shadow Map 伎 讀螳 磯ジ 觜螳 . Cascaded Shadow Maps
- 8. eye Shadow Light Shadow Map Texture Size(Width x N , Height)
- 9. Shadow Map朱 Texture 譴觜 N螳 Cascaded 螻襯 る Texture 伎 Width x N, Height Width x N 伎 レ Texture N螻 Shadow Map 願鍵 企. 襭襯 覃 0 ~ N-1螻蟾讌 Shadow Caster襯 襷. 觀壱 れ 覦蠖螳覃 レ Texture 覈 企. Shadow Receiver襯 襷 曙 企 Cascaded螻 れ願讌 谿場 tex譬 u焔 offset譟一 危 朱 Shadow Map螻 螳. 蟲
- 10. Cascaded螻 磯 Draw Call螳 企. CPU 觜. 貊 覲旧″伎. 覦 覈 Cascaded 螻襯 豌襴 蟾? 螳螻 苦
- 11. 襷 蠏碁襦 Texture覦一 覦一伎伎襷 Texture豌 る０ . SRV, RTV襦 螳. CPU豸 貊 API 覦覯 朱 Texture 螳. Texture襦覿 襷 譬 x,y,z焔譴 z焔 覦一伎 碁煙る Texture Array
- 12. Texture2DArray texDiffuseArray: register(t0); SamplerState samplerDiffuse: register(s0); float4 psArrayDiffuse(PS_INPUT input) : SV_Target { float3 texCoord = float3(input.TexCoord.xy,TexArrayIndex); float4 texColor = texDiffuseArray.Sample(samplerDiffuse, texCoord); float4 outColor = texColor; return outColor; } Using Texture Array as SRV
- 13. Using Texture Array as RTV struct PS_OUT_TEX_ARRAY { float4 Pos : SV_POSITION; uint RTIndex : SV_RenderTargetArrayIndex; }; [maxvertexcount(3)] void gsDefault ( triangle GS_INPUT input[3], inout TriangleStream<PS_OUT_TEX_ARRAY> TriStream ) { PS_OUT_TEX_ARRAY output; for (uint i=0; i<3; i++) { output.Pos = mul(input[i].PosWorld,matViewProjList[i]); output.RTIndex = N; TriStream.Append(output[j]); } TriStream.RestartStrip(); }
- 14. N螳 Cascaded螻螳 伎 Width , Height 覦一伎 N螳 Texture 朱 Texture 襷谿螳讌襦 RTV SRV Shader 企 Cascaded 螻 讌 螻壱螻 蠏 碁煙 螳 れ 譬 z焔朱 Texture Arrary襯 Shadow Maps
- 15. UINT Width = DEFAULT_SHADOW_MAP_WIDTH; UINT Height = DEFAULT_SHADOW_MAP_HEIGHT; UINT ArrayCount = MAX_CASCADE_NUM; D3D11_TEXTURE2D_DESC texDesc = { Width, Height, 1, ArrayCount, DXGI_FORMAT_R32_TYPELESS, 1, 0, D3D11_USAGE_DEFAULT, D3D11_BIND_DEPTH_STENCIL | D3D11_BIND_SHADER_RESOURCE, 0, 0 }; D3D11_DEPTH_STENCIL_VIEW_DESC dsvDesc = { DXGI_FORMAT_D32_FLOAT, D3D11_DSV_DIMENSION_TEXTURE2DARRAY, 0 }; dsvDesc.Texture2DArray.FirstArraySlice = 0; dsvDesc.Texture2DArray.ArraySize = ArrayCount; dsvDesc.Texture2DArray.MipSlice = 0; D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc = { DXGI_FORMAT_R32_FLOAT, D3D11_SRV_DIMENSION_TEXTURE2DARRAY, 0, 0 }; srvDesc.Texture2DArray.FirstArraySlice = 0; srvDesc.Texture2DArray.ArraySize = ArrayCount; srvDesc.Texture2DArray.MipLevels = 1; srvDesc.Texture2DArray.MostDetailedMip = 0; ID3D11Texture2D* pTex = nullptr; HRESULT hr = m_pD3DDevice->CreateTexture2D(&texDesc, NULL, &pTex); if (FAILED(hr)) __debugbreak(); hr = m_pD3DDevice->CreateDepthStencilView(pTex, &dsvDesc, &m_pShadowMapDSV); if (FAILED(hr)) __debugbreak(); hr = m_pD3DDevice->CreateShaderResourceView(pTex, &srvDesc, &m_pShadowMapSRV); if (FAILED(hr)) __debugbreak(); pTex->Release(); Creating SRV,DSV from Texture Array
- 16. Texture Texture Array // set matrix for shadow-space, SetCascadedLightSpaceAll(N); // Draw shadow casters to Depth Buffer DrawShadowCasters(); for (DWORD i=0; i<N; i++) { // set matrix for shadow-space, SetCascadedLightSpace(i); // Draw shadow casters to Depth Buffer DrawShadowCasters(); } CPU Code Shadow Caster 襷 觜蟲
- 17. cbuffer ConstantBufferShadowMap : register( b0 ) { matrix matWorld; matrix matViewList[MAX_CASCADE_NUM]; matrix matProjList[MAX_CASCADE_NUM]; } struct PS_OUT_TEX_ARRAY { float4 Pos : SV_POSITION; uint RTIndex : SV_RenderTargetArrayIndex; }; struct GS_INPUT { float4 PosWorld: POSITION; }; Shader Code Pass 0 , Shadow Caster
- 18. float4 vsShadowCaster( VS_INPUT_VL input ) : POSITION { float4 PosWorld = mul( input.Pos, matWorld ); return PosWorld; } [maxvertexcount(3*MAX_CASCADE_NUM)] void gsShadowCaster( triangle GS_INPUT input[3], inout TriangleStream<PS_OUT_TEX_ARRAY> TriStream ) { PS_OUT_TEX_ARRAY output[3]; for (uint i=0; i<MAX_CASCADE_NUM; i++ ) { for (uint j=0; j<3; j++) { float4 PosView = mul(input[j].PosWorld,matViewList[i]); PosView.z += 2.5f; // bias value output[j].Pos = mul(PosView,matProjList[i]); output[j].RTIndex = i; TriStream.Append(output[j]); } TriStream.RestartStrip(); } } Shader Code Pass 0 , Shadow Caster
- 19. cbuffer ConstantBufferGBufferShader : register (b0) { matrix ViewInv; matrix matShadowViewProjCascade[MAX_CASCADE_NUM]; CASCADE_CONSTNAT CascadeConst[MAX_CASCADE_NUM]; }; Texture2DArray texShadowMap: register(t2); SamplerComparisonState samplerComp : register(s2); void CalcIndex(out float OutIndex, in float Dist) { uint index = MAX_CASCADE_NUM - 1; for (uint i = 0; i < MAX_CASCADE_NUM; i++) { if (Dist <= CascadeConst[i].Dist) { index = i; break; } } OutIndex = index; } Shader Code Pass 1 , Shadow Receiver
- 20. float3 CalcShadowColor3x3(Texture2DArray texShadowMap, SamplerComparisonState samplerComp, float4 PosWorld, float Dist) { float3 shadowColor = float3(1, 1, 1); uint index; CalcIndex(index, Dist); float4 PosShadowSpace = mul(PosWorld, matShadowViewProjCascade[index]); float4 texCoord = PosShadowSpace / PosShadowSpace.w; float cmp_z = texCoord.z; float litSum = 0; int2 offset[9] = {-1,-1, 0,-1, 1,-1, -1,0, 0,0, 1,0, -1,1, 0,1, 1,1 }; for (int i = 0; i < 9; i++) { litSum += texShadowMap.SampleCmpLevelZero(samplerComp, float3(texCoord.xy,index), cmp_z, offset[i]); } float shadowValue = litSum / 9.0f; shadowColor = lerp(float3(0,0,0), float3(1, 1, 1), shadowValue); return shadowColor; } Shader Code Pass 1 , Shadow Receiver
- 21. Draw Call 譴 . CPU豸 覲覈 譴 貊螳 覲企 螳蟆壱伎. Texture Array レ
- 22. 螳螳 Light View Space ろ culling ろ culling 襾殊 Constant Buffer襯 牛 bit flags襦 . Geometry Shader 0,1,2,3 螳 觜碁ゼ 豌危覃 0 N蟾讌 Cascaded螻 讌襯 蟆. 觜瑚 0企 蠏碁襦 蠍. GPU 企Μ 企伎覩襦 CPU豸′ 覲 Culling 螳 螳覃 蟲褐 螳 讌???? 豢螳 豕