138 lines
4.3 KiB
C++
138 lines
4.3 KiB
C++
// Copyright (C) 2024 Jérôme "SirLynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Graphics/Algorithm.hpp>
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#include <Nazara/Graphics/MaterialPass.hpp>
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#include <Nazara/Graphics/Debug.hpp>
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namespace Nz
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{
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inline RenderSubmesh::RenderSubmesh(int renderLayer, std::shared_ptr<MaterialInstance> materialInstance, MaterialPassFlags materialFlags, std::shared_ptr<RenderPipeline> renderPipeline, const WorldInstance& worldInstance, const SkeletonInstance* skeletonInstance, std::size_t indexCount, IndexType indexType, std::shared_ptr<RenderBuffer> indexBuffer, std::shared_ptr<RenderBuffer> vertexBuffer, const Recti& scissorBox) :
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RenderElement(BasicRenderElement::Submesh),
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m_indexBuffer(std::move(indexBuffer)),
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m_vertexBuffer(std::move(vertexBuffer)),
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m_materialInstance(std::move(materialInstance)),
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m_renderPipeline(std::move(renderPipeline)),
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m_indexCount(indexCount),
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m_skeletonInstance(skeletonInstance),
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m_worldInstance(worldInstance),
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m_indexType(indexType),
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m_materialFlags(materialFlags),
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m_scissorBox(scissorBox),
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m_renderLayer(renderLayer)
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{
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}
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inline UInt64 RenderSubmesh::ComputeSortingScore(const Frustumf& frustum, const RenderQueueRegistry& registry) const
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{
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UInt64 layerIndex = registry.FetchLayerIndex(m_renderLayer);
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if (m_materialFlags.Test(MaterialPassFlag::SortByDistance))
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{
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UInt64 matFlags = 1;
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float distanceNear = frustum.GetPlane(FrustumPlane::Near).SignedDistance(m_worldInstance.GetWorldMatrix().GetTranslation());
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UInt64 distance = DistanceAsSortKey(distanceNear);
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// Transparent RQ index:
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// - Layer (8bits)
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// - Sorted by distance flag (1bit)
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// - Distance to near plane (32bits) - could by reduced to 24 or even 16 if required
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// - ?? (23bits)
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return (layerIndex & 0xFF) << 56 |
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(matFlags) << 55 |
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(distance) << 23;
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}
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else
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{
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UInt64 elementType = GetElementType();
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UInt64 materialInstanceIndex = registry.FetchMaterialInstanceIndex(m_materialInstance.get());
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UInt64 pipelineIndex = registry.FetchPipelineIndex(m_renderPipeline.get());
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UInt64 vertexBufferIndex = registry.FetchVertexBuffer(m_vertexBuffer.get());
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UInt64 skeletonIndex = 0;
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if (m_skeletonInstance)
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skeletonIndex = registry.FetchSkeletonIndex(m_skeletonInstance->GetSkeleton().get());
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UInt64 matFlags = 0;
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// Opaque RQ index:
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// - Layer (8bits)
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// - Sorted by distance flag (1bit)
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// - Element type (4bits)
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// - Pipeline (16bits)
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// - MaterialPass (16bits)
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// - VertexBuffer (8bits)
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// - Skeleton (8bits)
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// - Unused (3bits)
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return (layerIndex & 0xFF) << 56 |
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(matFlags) << 55 |
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(elementType & 0xF) << 51 |
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(pipelineIndex & 0xFFFF) << 35 |
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(materialInstanceIndex & 0xFFFF) << 19 |
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(vertexBufferIndex & 0xFF) << 11 |
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(skeletonIndex & 0xFF) << 3;
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}
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}
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inline const RenderBuffer* RenderSubmesh::GetIndexBuffer() const
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{
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return m_indexBuffer.get();
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}
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inline std::size_t RenderSubmesh::GetIndexCount() const
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{
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return m_indexCount;
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}
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inline IndexType RenderSubmesh::GetIndexType() const
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{
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return m_indexType;
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}
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inline const MaterialInstance& RenderSubmesh::GetMaterialInstance() const
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{
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return *m_materialInstance;
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}
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inline const RenderPipeline* RenderSubmesh::GetRenderPipeline() const
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{
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return m_renderPipeline.get();
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}
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inline const Recti& RenderSubmesh::GetScissorBox() const
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{
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return m_scissorBox;
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}
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inline const SkeletonInstance* RenderSubmesh::GetSkeletonInstance() const
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{
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return m_skeletonInstance;
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}
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inline const RenderBuffer* RenderSubmesh::GetVertexBuffer() const
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{
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return m_vertexBuffer.get();
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}
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inline const WorldInstance& RenderSubmesh::GetWorldInstance() const
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{
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return m_worldInstance;
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}
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inline void RenderSubmesh::Register(RenderQueueRegistry& registry) const
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{
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registry.RegisterLayer(m_renderLayer);
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registry.RegisterMaterialInstance(m_materialInstance.get());
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registry.RegisterPipeline(m_renderPipeline.get());
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registry.RegisterVertexBuffer(m_vertexBuffer.get());
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if (m_skeletonInstance)
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registry.RegisterSkeleton(m_skeletonInstance->GetSkeleton().get());
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}
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}
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#include <Nazara/Graphics/DebugOff.hpp>
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