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Add support for up to 4 texture channels when importing meshes

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#2667
This commit is contained in:
Wojtek Figat
2025-01-11 22:40:20 +01:00
parent 756ba0a533
commit a1c46d2e6e
31 changed files with 427 additions and 475 deletions
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27
Source/Engine/Graphics/Models/Mesh.cpp
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@@ -385,8 +385,33 @@ void Mesh::Draw(const RenderContextBatch& renderContextBatch, const DrawInfo& in
renderContextBatch.GetMainContext().List->AddDrawCall(renderContextBatch, drawModes, info.Flags, shadowsMode, info.Bounds, drawCall, entry.ReceiveDecals, info.SortOrder);
}
bool Mesh::Init(uint32 vertices, uint32 triangles, const Array<const void*, FixedAllocation<3>>& vbData, const void* ibData, bool use16BitIndexBuffer, const Array<GPUVertexLayout*, FixedAllocation<3>>& vbLayout)
bool Mesh::Init(uint32 vertices, uint32 triangles, const Array<const void*, FixedAllocation<3>>& vbData, const void* ibData, bool use16BitIndexBuffer, Array<GPUVertexLayout*, FixedAllocation<3>> vbLayout)
{
// Inject lightmap uv coordinate index into the vertex layout of one of the buffers
if (LightmapUVsIndex != -1)
{
const auto vertexElementType = (VertexElement::Types)((int32)VertexElement::Types::TexCoord0 + LightmapUVsIndex);
for (int32 vbIndex = 0; vbIndex < vbLayout.Count(); vbIndex++)
{
// Check if layout contains lightmap uvs texcoords channel
GPUVertexLayout* layout = vbLayout[vbIndex];
VertexElement element = layout->FindElement(vertexElementType);
if (element.Type == vertexElementType)
{
// Ensure element doesn't exist in this layout
if (layout->FindElement(VertexElement::Types::Lightmap).Format == PixelFormat::Unknown)
{
GPUVertexLayout::Elements elements = layout->GetElements();
element.Type = VertexElement::Types::Lightmap;
elements.Add(element);
layout = GPUVertexLayout::Get(elements, true);
vbLayout[vbIndex] = layout;
}
break;
}
}
}
if (MeshBase::Init(vertices, triangles, vbData, ibData, use16BitIndexBuffer, vbLayout))
return true;