![]() Due to the performance degradations of this sampling method, this flag should only be used when necessary. This flag causes a slower but more accurate sampling method to be used to alleviate the artifacts. In some cases where a large amount of motion blur is used with depth of field, sampling artifacts could cause an undesirable result. ![]() Intended exposure Bracket in post-production to help inform the adaptive sampling.Įnable improved sampling accuracy. Set this to zero to disable this and force it to fully update the buckets that it can get to. When making rapid edits to heavy scenes and this setting is non-zero, the renderer will try to reduce tearing by updating the whole screen progressively with a dissolve-like effect. Maximum allowed pixel decimation rate for interactive rendering. Higher values cull more samples, speeding up render time while increasing noise in darker areas. Use this parameter to avoid oversampling dark areas while maintaining overall image quality. Value range: true/false.ĭe-prioritize low luminance samples in the adaptive sampler. Set to 0 (off) if the samples in adjacent pixels need to be completely decorrelated. Setting to control whether the samples should have a visually pleasing blue noise distribution or not. Supported values: contrast, variance, halfbuffer, contrast-v22, variance-v22. "variance-v22" uses the relative variance computation of RenderMan 22 and older. "contrast-v22" uses the relative contrast computation of RenderMan 22 and older. "halfbuffer" splits the samples into two classes and measures the difference between the average of each of the two sample classes. "variance" measures the variance of the samples in a pixel. "contrast" measures the contrast between samples in a pixel. ![]() Specifies the metric used to drive adaptive sampling. So turning off "adaptall" may speed up your render if some of your AOVs never reach the specified variance threshold. The default (off) will ignore the AOVs and only the beauty pass is considered for pixel convergence. When enabled, all channels (beauty pass + AOVs) are considered when deciding if a pixel is converging.
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