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您好,我想请问在多重网格法中,K^{l+1}=R^{l+1}{l}·K^{l}·I^{l}{l+1}这里面的R矩阵和I矩阵是三线性插值矩阵吗?以及在三维体素中,u和f都是三维的,那么K是一个6维的矩阵,所以请问一下这两个矩阵的具体的shape和数值是怎样的。
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插值矩阵是使用的三线性插值,一般来说每个顶点上保存的Kv是27个3x3的小矩阵,也叫numerical stencil,具体细节也可以参考这篇论文"A real-time multigrid finite hexahedra method for elasticity simulation using CUDA"
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您好,我想请问在多重网格法中,K^{l+1}=R^{l+1}{l}·K^{l}·I^{l}{l+1}这里面的R矩阵和I矩阵是三线性插值矩阵吗?以及在三维体素中,u和f都是三维的,那么K是一个6维的矩阵,所以请问一下这两个矩阵的具体的shape和数值是怎样的。
The text was updated successfully, but these errors were encountered: