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Graphics/ForwardFramePipeline: Frustum cull lights

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This commit is contained in:
Jérôme Leclercq
2022-02-02 19:39:46 +01:00
parent 29cd77db55
commit de7fee348a
10 changed files with 33 additions and 18 deletions
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32
src/Nazara/Graphics/ForwardFramePipeline.cpp
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@@ -244,7 +244,7 @@ namespace Nz
BoundingVolumef boundingVolume(renderable->GetAABB());
boundingVolume.Update(worldInstance->GetWorldMatrix());
if (!frustum.Contains(boundingVolume.aabb))
if (!frustum.Contains(boundingVolume))
continue;
auto& visibleRenderable = m_visibleRenderables.emplace_back();
@@ -259,6 +259,20 @@ namespace Nz
visibilityHash = CombineHash(visibilityHash, std::hash<const void*>()(worldInstance.get()));
}
// TODO: Lights update shouldn't trigger a rebuild of the depth prepass
m_visibleLights.clear();
for (auto&& [light, lightData] : m_lights)
{
const BoundingVolumef& boundingVolume = light->GetBoundingVolume();
// TODO: Use more precise tests for point lights (frustum/sphere is cheap)
if (renderMask & lightData.renderMask && frustum.Contains(boundingVolume))
{
m_visibleLights.push_back(light);
visibilityHash = CombineHash(visibilityHash, std::hash<const void*>()(light));
}
}
if (viewerData.visibilityHash != visibilityHash)
{
viewerData.rebuildDepthPrepass = true;
@@ -317,26 +331,26 @@ namespace Nz
renderableBoundingVolume.Update(renderableData.worldInstance->GetWorldMatrix());
// Select lights (TODO: Cull lights in frustum)
m_visibleLights.clear();
for (auto&& [light, lightData] : m_lights)
m_renderableLights.clear();
for (const Light* light : m_visibleLights)
{
const BoundingVolumef& boundingVolume = light->GetBoundingVolume();
if ((renderMask & lightData.renderMask) && boundingVolume.Intersect(renderableBoundingVolume.aabb))
m_visibleLights.push_back(light);
if (boundingVolume.Intersect(renderableBoundingVolume.aabb))
m_renderableLights.push_back(light);
}
// Sort lights
std::sort(m_visibleLights.begin(), m_visibleLights.end(), [&](Light* lhs, Light* rhs)
std::sort(m_renderableLights.begin(), m_renderableLights.end(), [&](const Light* lhs, const Light* rhs)
{
return lhs->ComputeContributionScore(renderableBoundingVolume) < rhs->ComputeContributionScore(renderableBoundingVolume);
});
std::size_t lightCount = std::min(m_visibleLights.size(), MaxLightCountPerDraw);
std::size_t lightCount = std::min(m_renderableLights.size(), MaxLightCountPerDraw);
LightKey lightKey;
lightKey.fill(nullptr);
for (std::size_t i = 0; i < lightCount; ++i)
lightKey[i] = m_visibleLights[i];
lightKey[i] = m_renderableLights[i];
RenderBufferView lightUboView;
@@ -383,7 +397,7 @@ namespace Nz
UInt8* lightPtr = static_cast<UInt8*>(lightDataPtr) + lightOffsets.lightsOffset;
for (std::size_t i = 0; i < lightCount; ++i)
{
m_visibleLights[i]->FillLightData(lightPtr);
m_renderableLights[i]->FillLightData(lightPtr);
lightPtr += lightOffsets.lightSize;
}