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srp-demos's Issues

请问给投影矩阵加上jitter的原理如何理解?

如题所述,您在代码里加上了随机偏移,我有一点不理解的是,4*4的投影矩阵,如果要在x,y方向加上偏移量,应该
是m03, m13, 为何这里是m02, m12?(2这个位置不应该是z分量吗)

var jitteredProjection = camera.projectionMatrix;
jitteredProjection.m02 += (offset.x * 2 - 1) / camera.pixelWidth;
jitteredProjection.m12 += (offset.x * 2 - 1) / camera.pixelHeight;

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