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                                            Shaohua Liu

Question about `render.py`

> 1. yes culling is done during rasterization > 2. z values are in euclidean space > 3. `screenspace_points` is passed to `rasterizer` function which fills this variable with the...

getProjectionMatrix is used to project the 3D point from the camera view space to NDC space，maybe you can refer to https://www.scratchapixel.com/lessons/3d-basic-rendering/perspective-and-orthographic-projection-matrix/building-basic-perspective-projection-matrix.html to learn more

about projection_matrix

> > getProjectionMatrix is used to project the 3D point from the camera view space to NDC space，maybe you can refer to https://www.scratchapixel.com/lessons/3d-basic-rendering/perspective-and-orthographic-projection-matrix/building-basic-perspective-projection-matrix.html to learn more > > I have...