SE_RenderUnit* SE_MeshSimObject::createWireRenderUnit()
{
//generate world geometry data
SE_GeometryData data;
SE_Matrix4f m2w = this->getSpatial()->getWorldTransform();
SE_GeometryData::transform(mMesh->getGeometryData(),m2w,&data);
int faceNum = data.getFaceNum();
int vertexNum = data.getVertexNum();
SE_Vector3f* vertex = data.getVertexArray();
SE_Vector3i* faces = data.getFaceArray();
SE_Segment* seg = new SE_Segment[faceNum * 3];
int n = 0 ;
for(int i = 0 ; i < faceNum ; i++)
{
SE_Vector3i* f = &faces[i];
seg[n++].set(vertex[f->x], vertex[f->y]);
seg[n++].set(vertex[f->y], vertex[f->z]);
seg[n++].set(vertex[f->z], vertex[f->x]);
}
SE_RenderUnit* ru = new SE_LineSegRenderUnit(seg, faceNum * 3, SE_Vector3f(0, 1, 0));
delete[] seg;
return ru;
}
void SE_TriSurfaceRenderUnit::getVertex(_Vector3f*& vertex, int & vertexNum)
{
if(mVertex != NULL)
{
vertex = mVertex;
vertexNum = mVertexNum;
SE_ASSERT(0);
return;
}
SE_GeometryData* geomData = mSurface->getGeometryData();
int facetNum = mSurface->getFacetNum();
int* facets = mSurface->getFacetArray();
SE_Vector3i* faceArray = geomData->getFaceArray();
SE_Vector3f* vertexArray = geomData->getVertexArray();
mVertex = new _Vector3f[facetNum * 3];
mVertexNum = facetNum * 3;
int k = 0;
for(int i = 0 ; i < facetNum ; i++)
{
SE_Vector3i f = faceArray[facets[i]];
mVertex[k].d[0] = vertexArray[f.x].x;
mVertex[k].d[1] = vertexArray[f.x].y;
mVertex[k].d[2] = vertexArray[f.x].z;
k++;
mVertex[k].d[0] = vertexArray[f.y].x;
mVertex[k].d[1] = vertexArray[f.y].y;
mVertex[k].d[2] = vertexArray[f.y].z;
k++;
mVertex[k].d[0] = vertexArray[f.z].x;
mVertex[k].d[1] = vertexArray[f.z].y;
mVertex[k].d[2] = vertexArray[f.z].z;
k++;
}
vertex = mVertex;
vertexNum = mVertexNum;
}