void FTangoPointCloudSceneProxy::GetDynamicMeshElements(const TArray<const FSceneView*>& Views, const FSceneViewFamily & ViewFamily, uint32 VisibilityMap, FMeshElementCollector & Collector) const
{
for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
{
if (VisibilityMap & (1 << ViewIndex))
{
//Essentially, which camera we are using
const FSceneView* View = Views[ViewIndex];
//Ask for a new render batch and link it to our data
FMeshBatch& Mesh = Collector.AllocateMesh();
Mesh.VertexFactory = &VertexFactory;
Mesh.MaterialRenderProxy = Material->GetRenderProxy(IsSelected());
Mesh.ReverseCulling = IsLocalToWorldDeterminantNegative();
Mesh.DepthPriorityGroup = SDPG_World;
Mesh.bCanApplyViewModeOverrides = false;
//GL_Points render, still need to work out how to set GL_PointSize
Mesh.Type = PT_PointList;
//Tell the render object how to index our data.
FMeshBatchElement& BatchElement = Mesh.Elements[0];
BatchElement.IndexBuffer = &IndexBuffer;
//Give all the "default" uniforms to help render. (Transform etc.)
BatchElement.PrimitiveUniformBuffer = CreatePrimitiveUniformBufferImmediate(GetLocalToWorld(), GetBounds(), GetLocalBounds(), true, UseEditorDepthTest());
BatchElement.FirstIndex = 0;
BatchElement.NumPrimitives = IndexBuffer.Indices.Num() / 3;
BatchElement.MinVertexIndex = 0;
BatchElement.MaxVertexIndex = VertexBuffer.Vertices.Num() - 1;
//All done!
Collector.AddMesh(ViewIndex, Mesh);
}
}
}
void FGeometryCacheSceneProxy::GetDynamicMeshElements(const TArray<const FSceneView*>& Views, const FSceneViewFamily& ViewFamily, uint32 VisibilityMap, FMeshElementCollector& Collector) const
{
SCOPE_CYCLE_COUNTER(STAT_GeometryCacheSceneProxy_GetMeshElements);
// Set up wireframe material (if needed)
const bool bWireframe = AllowDebugViewmodes() && ViewFamily.EngineShowFlags.Wireframe;
FColoredMaterialRenderProxy* WireframeMaterialInstance = NULL;
if (bWireframe)
{
WireframeMaterialInstance = new FColoredMaterialRenderProxy(
GEngine->WireframeMaterial ? GEngine->WireframeMaterial->GetRenderProxy(IsSelected()) : NULL,
FLinearColor(0, 0.5f, 1.f)
);
Collector.RegisterOneFrameMaterialProxy(WireframeMaterialInstance);
}
// Iterate over sections
for (const FGeomCacheTrackProxy* TrackProxy : Sections )
{
// QQQ
if (TrackProxy != nullptr)
{
INC_DWORD_STAT_BY(STAT_GeometryCacheSceneProxy_MeshBatchCount, TrackProxy->MeshData->BatchesInfo.Num());
int32 BatchIndex = 0;
for (FGeometryCacheMeshBatchInfo& BatchInfo : TrackProxy->MeshData->BatchesInfo)
{
FMaterialRenderProxy* MaterialProxy = bWireframe ? WireframeMaterialInstance : TrackProxy->Materials[BatchIndex]->GetRenderProxy(IsSelected());
for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
{
if (VisibilityMap & (1 << ViewIndex))
{
const FSceneView* View = Views[ViewIndex];
// Draw the mesh.
FMeshBatch& Mesh = Collector.AllocateMesh();
FMeshBatchElement& BatchElement = Mesh.Elements[0];
BatchElement.IndexBuffer = &TrackProxy->IndexBuffer;
Mesh.bWireframe = bWireframe;
Mesh.VertexFactory = &TrackProxy->VertexFactory;
Mesh.MaterialRenderProxy = MaterialProxy;
BatchElement.PrimitiveUniformBuffer = CreatePrimitiveUniformBufferImmediate(TrackProxy->WorldMatrix * GetLocalToWorld(), GetBounds(), GetLocalBounds(), true, UseEditorDepthTest());
BatchElement.FirstIndex = BatchInfo.StartIndex;
BatchElement.NumPrimitives = BatchInfo.NumTriangles;
BatchElement.MinVertexIndex = 0;
BatchElement.MaxVertexIndex = TrackProxy->VertexBuffer.Vertices.Num() - 1;
Mesh.ReverseCulling = IsLocalToWorldDeterminantNegative();
Mesh.Type = PT_TriangleList;
Mesh.DepthPriorityGroup = SDPG_World;
Mesh.bCanApplyViewModeOverrides = false;
Collector.AddMesh(ViewIndex, Mesh);
INC_DWORD_STAT_BY(STAT_GeometryCacheSceneProxy_TriangleCount, BatchElement.NumPrimitives);
}
}
++BatchIndex;
}
}
}
// Draw bounds
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
{
if (VisibilityMap & (1 << ViewIndex))
{
// Render bounds
RenderBounds(Collector.GetPDI(ViewIndex), ViewFamily.EngineShowFlags, GetBounds(), IsSelected());
}
}
#endif
}
