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Add Volumetric Fog support for particles to modify local fog

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This commit is contained in:
Wojtek Figat
2021-03-05 13:56:07 +01:00
parent dfb502621d
commit 1dee615d6e
22 changed files with 726 additions and 84 deletions
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65
Source/Engine/Particles/ParticleManager.cpp
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@@ -524,6 +524,34 @@ void DrawEmitterCPU(RenderContext& renderContext, ParticleBuffer* buffer, DrawCa
break;
}
// Volumetric Fog Rendering
case 405:
{
const auto material = (MaterialBase*)module->Assets[0].Get();
drawCall.Material = material;
drawCall.InstanceCount = 1;
auto positionOffset = emitter->Graph.Layout.GetAttributeOffset(module->Attributes[0]);
int32 count = buffer->CPU.Count;
if (positionOffset == -1 || count < 0)
break;
auto radiusOffset = emitter->Graph.Layout.GetAttributeOffset(module->Attributes[1]);
ParticleBufferCPUDataAccessor<Vector3> positionData(buffer, positionOffset);
ParticleBufferCPUDataAccessor<float> radiusData(buffer, radiusOffset);
const bool hasRadius = radiusOffset != -1;
for (int32 i = 0; i < count; i++)
{
// Submit draw call
// TODO: use instancing for volumetric fog particles (combine it with instanced circle rasterization into 3d texture)
drawCall.Particle.VolumetricFog.Position = positionData[i];
if (emitter->SimulationSpace == ParticlesSimulationSpace::Local)
Vector3::Transform(drawCall.Particle.VolumetricFog.Position, drawCall.World, drawCall.Particle.VolumetricFog.Position);
drawCall.Particle.VolumetricFog.Radius = hasRadius ? radiusData[i] : 100.0f;
drawCall.Particle.VolumetricFog.ParticleIndex = i;
renderContext.List->VolumetricFogParticles.Add(drawCall);
}
break;
}
}
}
}
@@ -713,7 +741,12 @@ void DrawEmitterGPU(RenderContext& renderContext, ParticleBuffer* buffer, DrawCa
case 404:
{
// Not supported
CRASH;
break;
}
// Volumetric Fog Rendering
case 405:
{
// Not supported
break;
}
}
@@ -775,7 +808,12 @@ void DrawEmitterGPU(RenderContext& renderContext, ParticleBuffer* buffer, DrawCa
case 404:
{
// Not supported
CRASH;
break;
}
// Volumetric Fog Rendering
case 405:
{
// Not supported
break;
}
}
@@ -841,7 +879,12 @@ void DrawEmitterGPU(RenderContext& renderContext, ParticleBuffer* buffer, DrawCa
case 404:
{
// Not supported
CRASH;
break;
}
// Volumetric Fog Rendering
case 405:
{
// Not supported
break;
}
}
@@ -909,7 +952,6 @@ void ParticleManager::DrawParticles(RenderContext& renderContext, ParticleEffect
(view.Pass & material->GetDrawModes() & moduleDrawModes) == 0
)
break;
renderModulesIndices.Add(moduleIndex);
break;
}
@@ -929,7 +971,6 @@ void ParticleManager::DrawParticles(RenderContext& renderContext, ParticleEffect
(view.Pass & material->GetDrawModes() & moduleDrawModes) == 0
)
break;
renderModulesIndices.Add(moduleIndex);
break;
}
@@ -944,7 +985,19 @@ void ParticleManager::DrawParticles(RenderContext& renderContext, ParticleEffect
(view.Pass & material->GetDrawModes() & moduleDrawModes) == 0
)
break;
renderModulesIndices.Add(moduleIndex);
break;
}
// Volumetric Fog Rendering
case 405:
{
const auto material = (MaterialBase*)module->Assets[0].Get();
if (!material ||
!material->IsReady() ||
material->GetInfo().Domain != MaterialDomain::VolumeParticle ||
(view.Flags & ViewFlags::Fog) == 0
)
break;
renderModulesIndices.Add(moduleIndex);
break;
}