gl-matrix

问题 Recently I am working on some way to transform a given bone (rotate by some angle ) using Assimp in visual Studio C++. I read at many sites procedure to do this and still I am not able to find error with multiple trials for matrix multiplication orders. What I'm doing is given a model I firstly find the perVertexBone data and then I find bone locations prior any transformation and then represent all vertices in Model using linear weight assignment with bones using perVertexBone data

问题 I'm trying to create a 2D graph visualization using WebGL (regl, to be more specific). With my current implementation I can already see the force layout being applied to each node, which is good. The problem comes when I try to zoom with respect to the current mouse position. According to my research, to achieve this behavior, it is necessary to apply matrix transformations in the following order: translate(nodePosition, mousePosition) scale(scaleFactor) translate(nodePosition, -mousePosition

问题 I'm trying to create a 2D graph visualization using WebGL (regl, to be more specific). With my current implementation I can already see the force layout being applied to each node, which is good. The problem comes when I try to zoom with respect to the current mouse position. According to my research, to achieve this behavior, it is necessary to apply matrix transformations in the following order: translate(nodePosition, mousePosition) scale(scaleFactor) translate(nodePosition, -mousePosition