spin:esc203_fs2022
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spin:esc203_fs2022 [2022/04/11 14:59] stadel [Lectures] |
spin:esc203_fs2022 [2022/04/11 15:04] (current) stadel [List of assignments] |
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| - When you get the triangles rendered as factettes, then you are ready to compute the vertex normals using some sort of averaging of the face normals of the surrounding triangles. Then use the barycentric triangle coordinates to mix the 3 vertex normals to calculate an interpolated normal when calculating the absorption, reflection and transmission. This should give you a pretty smooth teapot. | - When you get the triangles rendered as factettes, then you are ready to compute the vertex normals using some sort of averaging of the face normals of the surrounding triangles. Then use the barycentric triangle coordinates to mix the 3 vertex normals to calculate an interpolated normal when calculating the absorption, reflection and transmission. This should give you a pretty smooth teapot. | ||
| + | 11. Apr. 2022: | ||
| + | - Get a multigrid (start with 2 grids) solver working for the simpler case of having the boundary conditions align with grid points at all levels of grid refinement. The BC should lie ontop of points in all of the grids. This requires a bit of care with the central plate that the power of 2 reductions of the grid remain on the endpoints of this plate. You can compare speed to SOR, but due to overheads, it my actually take longer with just 2 grids. With a deeper V-cycle this aspect should improve though. | ||
spin/esc203_fs2022.txt ยท Last modified: 2022/04/11 15:04 by stadel
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