DAYSIM Header File Keyword: Specular Jitter

-sj frac

Set the specular sampling jitter to frac. This is the degree to which the highlights are sampled for rough specular materials. A value of one means that all highlights will be fully sampled using distributed ray tracing. A value of zero means that no jittering will take place, and all reflections will appear sharp even when they should be diffuse.

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