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- Good at rendering densely tessellated geometry and dense scenes (forests, crowds, etc).
- Massive instancing allows for memory efficient rendering of trees/crowds and other redundant scene elements.
- Shading is usually sharper because shading is performed at each sub-sample (and not per pixel as in REYES). Although it is possible to make REYES shaper by increasing the Shading Rate, it is usually not done (as it affects performance). Whereas the Path Tracer do not have options to reduce the shading rate.
- Scales better than REYES with increased number of cores.
Cons:
- Slower with displacements.
- Need more samples to render smooth motion blur and depth of field. This happens because it is actually more precise than REYES and there is more detail in the motion blurred effect, but this also induces more noise. And the sad part is:
- Increasing pixel samples (for aliasing and to reduce noise) has a direct impact on performance.
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