Sphere resolution fix filter

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filter-2014.png

Description

This filter fixes the high noise level caused by the equirectangular projection at the upper and lower parts of spherical renders. The image is filtered anisotropically following the pixel/solid angle projection differential. This ensure uniform resolution and noise levels when projected back on a sphere.

sphereresolutionfix-postprocessing-before.png sphereresolutionfix-postprocessing-after.png
Spherical render without the filter Spherical render with the filter


Input and output channels

Input channels
Any channels
Output channels
Same as input channels
Output size
Same as input size


Parameters

None

Ocean XML 2.0 example

<filter type="sphereresolutionfix" name="#"/>

See also

Filter types