void FFinalSkinVertexBuffer::InitVertexData(FStaticLODModel& LodModel)
{
// Create the buffer rendering resource
uint32 Size = LodModel.NumVertices * sizeof(FFinalSkinVertex);
FRHIResourceCreateInfo CreateInfo;
void* Buffer = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(Size,BUF_Dynamic, CreateInfo, Buffer);
// Initialize the vertex data
// All chunks are combined into one (rigid first, soft next)
check(LodModel.VertexBufferGPUSkin.GetNumVertices() == LodModel.NumVertices);
FFinalSkinVertex* DestVertex = (FFinalSkinVertex*)Buffer;
for( uint32 VertexIdx=0; VertexIdx < LodModel.NumVertices; VertexIdx++ )
{
const TGPUSkinVertexBase<bExtraBoneInfluencesT>* SrcVertex = LodModel.VertexBufferGPUSkin.GetVertexPtr<bExtraBoneInfluencesT>(VertexIdx);
DestVertex->Position = LodModel.VertexBufferGPUSkin.GetVertexPositionFast<bExtraBoneInfluencesT>(VertexIdx);
DestVertex->TangentX = SrcVertex->TangentX;
// w component of TangentZ should already have sign of the tangent basis determinant
DestVertex->TangentZ = SrcVertex->TangentZ;
FVector2D UVs = LodModel.VertexBufferGPUSkin.GetVertexUVFast<bExtraBoneInfluencesT>(VertexIdx,0);
DestVertex->U = UVs.X;
DestVertex->V = UVs.Y;
DestVertex++;
}
// Unlock the buffer.
RHIUnlockVertexBuffer(VertexBufferRHI);
}
virtual void InitRHI() override
{
FRHIResourceCreateInfo CreateInfo;
void* VertexBufferData = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(Vertices.Num() * sizeof(FDynamicMeshVertex), BUF_Static, CreateInfo, VertexBufferData);
// Copy the vertex data into the vertex buffer.
FMemory::Memcpy(VertexBufferData, Vertices.GetData(), Vertices.Num() * sizeof(FDynamicMeshVertex));
RHIUnlockVertexBuffer(VertexBufferRHI);
}
/**
* Initialize the RHI for this rendering resource
*/
void FLandscapeVertexBufferMobile::InitRHI()
{
// create a static vertex buffer
FRHIResourceCreateInfo CreateInfo;
void* VertexData = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(DataSize, BUF_Static, CreateInfo, VertexData);
// Copy stored platform data
FMemory::Memcpy(VertexData, (uint8*)Data, DataSize);
RHIUnlockVertexBuffer(VertexBufferRHI);
}
/**
* Initialize the RHI for this rendering resource
*/
virtual void InitRHI() override
{
// create a static vertex buffer
FRHIResourceCreateInfo CreateInfo;
void* BufferData = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(sizeof(FVector2D) * 4, BUF_Static | BUF_ShaderResource, CreateInfo, BufferData);
FMemory::Memzero(BufferData, sizeof(FVector2D) * 4);
RHIUnlockVertexBuffer(VertexBufferRHI);
VertexBufferSRV = RHICreateShaderResourceView(VertexBufferRHI, sizeof(FVector2D), PF_G32R32F);
}
/**
* Creates a vertex buffer holding texture coordinates for the four corners of a sprite.
*/
void FParticleTexCoordVertexBuffer::InitRHI()
{
const uint32 Size = sizeof(FVector2D) * 4 * MAX_PARTICLES_PER_INSTANCE;
FRHIResourceCreateInfo CreateInfo;
void* BufferData = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(Size, BUF_Static, CreateInfo, BufferData);
FVector2D* Vertices = (FVector2D*)BufferData;
for (uint32 SpriteIndex = 0; SpriteIndex < MAX_PARTICLES_PER_INSTANCE; ++SpriteIndex)
{
Vertices[SpriteIndex*4 + 0] = FVector2D(0.0f, 0.0f);
Vertices[SpriteIndex*4 + 1] = FVector2D(0.0f, 1.0f);
Vertices[SpriteIndex*4 + 2] = FVector2D(1.0f, 1.0f);
Vertices[SpriteIndex*4 + 3] = FVector2D(1.0f, 0.0f);
}
RHIUnlockVertexBuffer( VertexBufferRHI );
}
/**
* Creates a vertex buffer holding texture coordinates for eight corners of a polygon.
*/
void FParticleEightTexCoordVertexBuffer::InitRHI()
{
const uint32 Size = sizeof(FVector2D) * 8 * MAX_PARTICLES_PER_INSTANCE;
FRHIResourceCreateInfo CreateInfo;
void* BufferData = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(Size, BUF_Static, CreateInfo, BufferData);
FVector2D* Vertices = (FVector2D*)BufferData;
for (uint32 SpriteIndex = 0; SpriteIndex < MAX_PARTICLES_PER_INSTANCE; ++SpriteIndex)
{
// The contents of this buffer does not matter, whenever it is used, cutout geometry will override
Vertices[SpriteIndex*8 + 0] = FVector2D(0.0f, 0.0f);
Vertices[SpriteIndex*8 + 1] = FVector2D(0.0f, 1.0f);
Vertices[SpriteIndex*8 + 2] = FVector2D(1.0f, 1.0f);
Vertices[SpriteIndex*8 + 3] = FVector2D(1.0f, 0.0f);
Vertices[SpriteIndex*8 + 4] = FVector2D(1.0f, 0.0f);
Vertices[SpriteIndex*8 + 5] = FVector2D(1.0f, 0.0f);
Vertices[SpriteIndex*8 + 6] = FVector2D(1.0f, 0.0f);
Vertices[SpriteIndex*8 + 7] = FVector2D(1.0f, 0.0f);
}
RHIUnlockVertexBuffer( VertexBufferRHI );
}
void FFinalSkinVertexBuffer::InitVertexData(FStaticLODModel& LodModel)
{
// this used to be check, but during clothing importing (when replacing Apex asset)
// it comes here with incomplete data causing crash during that intermediate state
// so I'm changing to ensure, and update won't do anything since it contains Invalid VertexBufferRHI
if (ensure(LodModel.VertexBufferGPUSkin.GetNumVertices() == LodModel.NumVertices))
{
// Create the buffer rendering resource
uint32 Size = LodModel.NumVertices * sizeof(FFinalSkinVertex);
// Initialize the vertex data
// All chunks are combined into one (rigid first, soft next)
FRHIResourceCreateInfo CreateInfo;
void* Buffer = nullptr;
VertexBufferRHI = RHICreateAndLockVertexBuffer(Size, BUF_Dynamic, CreateInfo, Buffer);
FFinalSkinVertex* DestVertex = (FFinalSkinVertex*)Buffer;
for (uint32 VertexIdx = 0; VertexIdx < LodModel.NumVertices; VertexIdx++)
{
const TGPUSkinVertexBase<bExtraBoneInfluencesT>* SrcVertex = LodModel.VertexBufferGPUSkin.GetVertexPtr<bExtraBoneInfluencesT>(VertexIdx);
DestVertex->Position = LodModel.VertexBufferGPUSkin.GetVertexPositionFast<bExtraBoneInfluencesT>(VertexIdx);
DestVertex->TangentX = SrcVertex->TangentX;
// w component of TangentZ should already have sign of the tangent basis determinant
DestVertex->TangentZ = SrcVertex->TangentZ;
FVector2D UVs = LodModel.VertexBufferGPUSkin.GetVertexUVFast<bExtraBoneInfluencesT>(VertexIdx, 0);
DestVertex->U = UVs.X;
DestVertex->V = UVs.Y;
DestVertex++;
}
// Unlock the buffer.
RHIUnlockVertexBuffer(VertexBufferRHI);
}
}
