Model surface normal calculating method
A surface normal and calculation method technology, applied in the field of computer graphics, can solve problems such as not being smooth enough, and achieve the effect of eliminating uneven transition and small contrast
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[0039] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0040] A calculation method for the surface normal of a model. For a triangular network model with multiple triangles spliced to describe the surface structure of an object, it is rasterized by the GPU, that is, each vertex and pixel is interpolated and converted into the position and method of the pixel. Line information, then calculate the direction of the normal of each pixel to get the lighting information of the model surface,
[0041] There are two cases for calculating the normal direction of each pixel;
[0042] The first case: perform normal calculation on a model without a normal map;
[0043] Second case: Calculation of model normals with normal maps. ...
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