Hajin Choi issues

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                                            Hajin Choi

Exclude photons in opposite side

This PR fixes the problem of the wrong radius update (#145). I added three lines of code that prevent photons to be stored in KD-tree when the surface normal and...

Bug report: wrong radius update in SPPM due to the photons in opposite side

### Problem The SPPM integrator accidentally updates the radius when photons arrive at the opposite side of the surface. ### Cause It's because there are no exception codes to prevent...

Consistent framerate drops in 7.0

I'm experiencing consistent framerate drops in version 7.0 for path tracing, which are not present in previous versions (5.2, 6.0). Here is the plot of some GPU metrics (RTX 4090)...