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Optimize local lights sphere mesh rendering to match the area better

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This commit is contained in:
Wojtek Figat
2024-04-05 12:48:09 +02:00
parent 0cc6669cbd
commit 3efd1e4e84
6 changed files with 53 additions and 91 deletions
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57
Source/Engine/Renderer/LightPass.cpp
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@@ -40,7 +40,7 @@ bool LightPass::Init()
// Load assets
_shader = Content::LoadAsyncInternal<Shader>(TEXT("Shaders/Lights"));
_sphereModel = Content::LoadAsyncInternal<Model>(TEXT("Engine/Models/SphereLowPoly"));
_sphereModel = Content::LoadAsyncInternal<Model>(TEXT("Engine/Models/Sphere"));
if (_shader == nullptr || _sphereModel == nullptr)
{
return true;
@@ -96,7 +96,7 @@ bool LightPass::setupResources()
psDesc.BlendMode = BlendingMode::Add;
psDesc.BlendMode.RenderTargetWriteMask = BlendingMode::ColorWrite::RGB;
psDesc.VS = shader->GetVS("VS_Model");
psDesc.CullMode = CullMode::Inverted;
psDesc.CullMode = CullMode::TwoSided;
if (_psLightPointInverted.Create(psDesc, shader, "PS_Point"))
return true;
psDesc.CullMode = CullMode::Normal;
@@ -110,7 +110,7 @@ bool LightPass::setupResources()
psDesc.BlendMode = BlendingMode::Add;
psDesc.BlendMode.RenderTargetWriteMask = BlendingMode::ColorWrite::RGB;
psDesc.VS = shader->GetVS("VS_Model");
psDesc.CullMode = CullMode::Inverted;
psDesc.CullMode = CullMode::TwoSided;
if (_psLightSpotInverted.Create(psDesc, shader, "PS_Spot"))
return true;
psDesc.CullMode = CullMode::Normal;
@@ -128,7 +128,7 @@ bool LightPass::setupResources()
psDesc.PS = shader->GetPS("PS_Sky");
if (_psLightSkyNormal->Init(psDesc))
return true;
psDesc.CullMode = CullMode::Inverted;
psDesc.CullMode = CullMode::TwoSided;
if (_psLightSkyInverted->Init(psDesc))
return true;
}
@@ -183,7 +183,6 @@ void LightPass::SetupLights(RenderContext& renderContext, RenderContextBatch& re
void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureView* lightBuffer)
{
const float sphereModelScale = 3.0f;
if (checkIfSkipPass())
return;
PROFILE_GPU_CPU("Lights");
@@ -230,6 +229,7 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
// Temporary data
PerLight perLight;
PerFrame perFrame;
auto& sphereMesh = _sphereModel->LODs.Get()[0].Meshes.Get()[0];
// Bind output
GPUTexture* depthBuffer = renderContext.Buffers->DepthBuffer;
@@ -266,19 +266,12 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
{
PROFILE_GPU_CPU_NAMED("Point Light");
auto& light = mainCache->PointLights[lightIndex];
float lightRadius = light.Radius;
Float3 lightPosition = light.Position;
bool useIES = light.IESTexture != nullptr;
// Get distance from view center to light center less radius (check if view is inside a sphere)
float distance = ViewToCenterLessRadius(view, lightPosition, lightRadius * sphereModelScale);
bool isViewInside = distance < 0;
// Calculate world view projection matrix for the light sphere
Matrix world, wvp, matrix;
Matrix::Scaling(lightRadius * sphereModelScale, wvp);
Matrix::Translation(lightPosition, matrix);
Matrix::Multiply(wvp, matrix, world);
Matrix world, wvp;
bool isViewInside;
RenderTools::ComputeSphereModelDrawMatrix(renderContext.View, light.Position, light.Radius, world, isViewInside);
Matrix::Multiply(world, view.ViewProjection(), wvp);
// Fullscreen shadow mask rendering
@@ -306,7 +299,7 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
context->BindCB(1, cb1);
int32 permutationIndex = (disableSpecular ? 1 : 0) + (useIES ? 2 : 0);
context->SetState((isViewInside ? _psLightPointInverted : _psLightPointNormal).Get(permutationIndex));
_sphereModel->Render(context);
sphereMesh.Render(context);
}
context->UnBindCB(0);
@@ -316,19 +309,12 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
{
PROFILE_GPU_CPU_NAMED("Spot Light");
auto& light = mainCache->SpotLights[lightIndex];
float lightRadius = light.Radius;
Float3 lightPosition = light.Position;
bool useIES = light.IESTexture != nullptr;
// Get distance from view center to light center less radius (check if view is inside a sphere)
float distance = ViewToCenterLessRadius(view, lightPosition, lightRadius * sphereModelScale);
bool isViewInside = distance < 0;
// Calculate world view projection matrix for the light sphere
Matrix world, wvp, matrix;
Matrix::Scaling(lightRadius * sphereModelScale, wvp);
Matrix::Translation(lightPosition, matrix);
Matrix::Multiply(wvp, matrix, world);
Matrix world, wvp;
bool isViewInside;
RenderTools::ComputeSphereModelDrawMatrix(renderContext.View, light.Position, light.Radius, world, isViewInside);
Matrix::Multiply(world, view.ViewProjection(), wvp);
// Fullscreen shadow mask rendering
@@ -356,7 +342,7 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
context->BindCB(1, cb1);
int32 permutationIndex = (disableSpecular ? 1 : 0) + (useIES ? 2 : 0);
context->SetState((isViewInside ? _psLightSpotInverted : _psLightSpotNormal).Get(permutationIndex));
_sphereModel->Render(context);
sphereMesh.Render(context);
}
context->UnBindCB(0);
@@ -395,21 +381,12 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
for (int32 lightIndex = 0; lightIndex < mainCache->SkyLights.Count(); lightIndex++)
{
PROFILE_GPU_CPU_NAMED("Sky Light");
// Cache data
auto& light = mainCache->SkyLights[lightIndex];
float lightRadius = light.Radius;
Float3 lightPosition = light.Position;
// Get distance from view center to light center less radius (check if view is inside a sphere)
float distance = ViewToCenterLessRadius(view, lightPosition, lightRadius * sphereModelScale);
bool isViewInside = distance < 0;
// Calculate world view projection matrix for the light sphere
Matrix world, wvp, matrix;
Matrix::Scaling(lightRadius * sphereModelScale, wvp);
Matrix::Translation(lightPosition, matrix);
Matrix::Multiply(wvp, matrix, world);
Matrix world, wvp;
bool isViewInside;
RenderTools::ComputeSphereModelDrawMatrix(renderContext.View, light.Position, light.Radius, world, isViewInside);
Matrix::Multiply(world, view.ViewProjection(), wvp);
// Pack light properties buffer
@@ -424,7 +401,7 @@ void LightPass::RenderLights(RenderContextBatch& renderContextBatch, GPUTextureV
context->BindCB(0, cb0);
context->BindCB(1, cb1);
context->SetState(isViewInside ? _psLightSkyInverted : _psLightSkyNormal);
_sphereModel->Render(context);
sphereMesh.Render(context);
}
RenderTargetPool::Release(shadowMask);