Dear author,
I have some questions about the code in def forward at class FlameDeformationModuleOnlyHead in deformation.py. I understand that you use grid to approximate deformation field. But there are operations that I don't understand:
- Line 706, what is the purpose of
world2grid?
- Line 707, why do we need to use
torch.flip? I think the last dim of x_grids already in xyzorder.
- Line 734, why
x_c = x_c + x_t? I think x_c is already the canonical points.

Dear author,
I have some questions about the code in
def forward at class FlameDeformationModuleOnlyHead in deformation.py. I understand that you use grid to approximate deformation field. But there are operations that I don't understand:world2grid?torch.flip? I think the last dim ofx_gridsalready inxyzorder.x_c = x_c + x_t? I thinkx_cis already the canonical points.