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PxrPathTracer is a core final-quality integrator in RenderMan.

It implements the forward path tracing algorithm, which excels in outdoor, highly specular scenes. The simplicity of the algorithm generally makes it easy to use and to implement. Shortcomings may include slow convergence speeds, especially for scenes with significant caustic illumination (see the clampLuminance and allowCaustics parameters, below, for more information).

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