void NzMesh::Transform(const NzMatrix4f& matrix)
{
#if NAZARA_UTILITY_SAFE
if (!m_impl)
{
NazaraError("Mesh not created");
return;
}
if (m_impl->animationType != nzAnimationType_Static)
{
NazaraError("Mesh must be static");
return;
}
#endif
if (matrix.IsIdentity())
return;
for (NzSubMesh* subMesh : m_impl->subMeshes)
{
NzStaticMesh* staticMesh = static_cast<NzStaticMesh*>(subMesh);
NzBufferMapper<NzVertexBuffer> mapper(staticMesh->GetVertexBuffer(), nzBufferAccess_ReadWrite);
NzMeshVertex* vertices = static_cast<NzMeshVertex*>(mapper.GetPointer());
NzBoxf aabb(vertices->position.x, vertices->position.y, vertices->position.z, 0.f, 0.f, 0.f);
unsigned int vertexCount = staticMesh->GetVertexCount();
for (unsigned int i = 0; i < vertexCount; ++i)
{
vertices->position = matrix.Transform(vertices->position);
aabb.ExtendTo(vertices->position);
vertices++;
}
staticMesh->SetAABB(aabb);
}
// Il ne faut pas oublier d'invalider notre AABB
m_impl->aabbUpdated = false;
}
void NzMesh::Recenter()
{
#if NAZARA_UTILITY_SAFE
if (!m_impl)
{
NazaraError("Mesh not created");
return;
}
if (m_impl->animationType != nzAnimationType_Static)
{
NazaraError("Mesh must be static");
return;
}
#endif
// Le centre de notre mesh est le centre de l'AABB *globale*
NzVector3f center = GetAABB().GetCenter();
for (NzSubMesh* subMesh : m_impl->subMeshes)
{
NzStaticMesh* staticMesh = static_cast<NzStaticMesh*>(subMesh);
NzBufferMapper<NzVertexBuffer> mapper(staticMesh->GetVertexBuffer(), nzBufferAccess_ReadWrite);
NzMeshVertex* vertices = static_cast<NzMeshVertex*>(mapper.GetPointer());
unsigned int vertexCount = staticMesh->GetVertexCount();
for (unsigned int i = 0; i < vertexCount; ++i)
{
vertices->position -= center;
vertices++;
}
// l'AABB ne change pas de dimensions mais seulement de position, appliquons-lui le même procédé
NzBoxf aabb = staticMesh->GetAABB();
aabb.Translate(-center);
staticMesh->SetAABB(aabb);
}
// Il ne faut pas oublier d'invalider notre AABB
m_impl->aabbUpdated = false;
}
