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CMeshManipulator::createMeshWelded now cloning buffers it can't weld.

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Not optimal, but making this real 32-bit is sadly a bit more work.
This way at lest meshes with mixed 16/32 bit buffers can weld the 16-bit ones.
And hopefully a bit of step in the right direction to fully support 32-bit another day.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6417 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien
2022-08-24 22:14:50 +00:00
parent 38e5bfe234
commit 31965fe599
2 changed files with 39 additions and 34 deletions
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58
source/Irrlicht/CMeshManipulator.cpp
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@ -708,38 +708,45 @@ IMesh* CMeshManipulator::createMeshUniquePrimitives(IMesh* mesh) const
// not yet 32bit
IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
{
SMesh* clone = new SMesh();
clone->BoundingBox = mesh->getBoundingBox();
SMesh* meshClone = new SMesh();
meshClone->BoundingBox = mesh->getBoundingBox();
core::array<u16> redirects;
for (u32 b=0; b<mesh->getMeshBufferCount(); ++b)
{
const IMeshBuffer* const mb = mesh->getMeshBuffer(b);
const u32 vertexCount = mb->getVertexCount();
// reset redirect list
redirects.set_used(mb->getVertexCount());
redirects.set_used(vertexCount);
const u16* indices = 0;
u32 indexCount = 0;
const video::E_INDEX_TYPE indexType = mb->getIndexType();
const u16* indices = mb->getIndices();
const u32 indexCount = mb->getIndexCount();
core::array<u16>* outIdx = 0;
if ( indexType == video::EIT_32BIT )
{
IMeshBuffer* buffer = mb->createClone();
buffer->setBoundingBox(mb->getBoundingBox());
buffer->getMaterial() = mb->getMaterial();
meshClone->addMeshBuffer(buffer);
buffer->drop();
continue; // TODO: handle 32-bit buffers beside copying them
}
switch(mb->getVertexType())
{
case video::EVT_STANDARD:
{
SMeshBuffer* buffer = new SMeshBuffer();
buffer->BoundingBox = mb->getBoundingBox();
buffer->setBoundingBox(mb->getBoundingBox());
buffer->Material = mb->getMaterial();
clone->addMeshBuffer(buffer);
meshClone->addMeshBuffer(buffer);
buffer->drop();
video::S3DVertex* v =
(video::S3DVertex*)mb->getVertices();
video::S3DVertex* v = (video::S3DVertex*)mb->getVertices();
u32 vertexCount = mb->getVertexCount();
indices = mb->getIndices();
indexCount = mb->getIndexCount();
outIdx = &buffer->Indices;
buffer->Vertices.reallocate(vertexCount);
@ -771,18 +778,14 @@ IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
case video::EVT_2TCOORDS:
{
SMeshBufferLightMap* buffer = new SMeshBufferLightMap();
buffer->BoundingBox = mb->getBoundingBox();
buffer->setBoundingBox(mb->getBoundingBox());
buffer->Material = mb->getMaterial();
clone->addMeshBuffer(buffer);
meshClone->addMeshBuffer(buffer);
buffer->drop();
video::S3DVertex2TCoords* v =
(video::S3DVertex2TCoords*)mb->getVertices();
u32 vertexCount = mb->getVertexCount();
indices = mb->getIndices();
indexCount = mb->getIndexCount();
outIdx = &buffer->Indices;
buffer->Vertices.reallocate(vertexCount);
@ -814,18 +817,13 @@ IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
case video::EVT_TANGENTS:
{
SMeshBufferTangents* buffer = new SMeshBufferTangents();
buffer->BoundingBox = mb->getBoundingBox();
buffer->setBoundingBox(mb->getBoundingBox());
buffer->Material = mb->getMaterial();
clone->addMeshBuffer(buffer);
meshClone->addMeshBuffer(buffer);
buffer->drop();
video::S3DVertexTangents* v =
(video::S3DVertexTangents*)mb->getVertices();
video::S3DVertexTangents* v = (video::S3DVertexTangents*)mb->getVertices();
u32 vertexCount = mb->getVertexCount();
indices = mb->getIndices();
indexCount = mb->getIndexCount();
outIdx = &buffer->Indices;
buffer->Vertices.reallocate(vertexCount);
@ -860,7 +858,7 @@ IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
break;
}
// Clean up any degenerate tris
// set indices for new buffer
core::array<u16> &Indices = *outIdx;
Indices.clear();
Indices.reallocate(indexCount);
@ -873,6 +871,7 @@ IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
bool drop = false;
// Clean up any degenerate tris
if (a == b || b == c || a == c)
drop = true;
@ -885,8 +884,9 @@ IMesh* CMeshManipulator::createMeshWelded(IMesh *mesh, f32 tolerance) const
Indices.push_back(c);
}
}
// indexCount-Indices.size() vertices got welded for this meshbuffer
}
return clone;
return meshClone;
}