Home Forums Games202-高质量实时渲染 作业2 PRT 多次inter-reflection的结果问题

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      qc
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      各位大佬,我开发的多次反射代码如下:
      假设计算完shadowed后,每个顶点的球谐系数为SH[0]
      每次反射k:
      每个顶点
      类似与sh::projectfunction,采样100条光线,计算交点,使用的是重心的SH系数。
      这个SH系数是k-1次反射的sh结果result[k-1]
      L'(x,wi,k)的sh系数, SH[k] = sum(bary of SH[k-1] * dot(n,wi)) * 4 * PI / 采样数

      result[k] = SH[K]/PI + SH[0]

      最后在shader代码里,在计算最终光照时,要再除以PI。
      但是这个结果输出以后,我感觉有点亮,是否正确没有把握,请各位大佬看看是否ok。
      附件是5次反射的结果。

      • This topic was modified 2 years ago by qc.
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