Started by Matt, June 13, 2018, 07:18:11 am
Quote from: mdharrington on June 13, 2018, 05:48:10 pmOctane has the step length parameter in meters...as well as Houdini (AFAIK)....this will greatly affect render density appearance, overiding whatever you put in the VDB file for density (as far as render appearance). This parameter if not precisely matched, will greatly affect density/shadowing/detail appearance but is not integrated into the VDB container (AFAIK)
Quote from: pokoy on June 14, 2018, 06:46:01 amStep length - I guess this is a ray marching accuracy parameter on the renderer side only, totally independent from VDB data. We should test VDBs from TG and other packages with the same ray length settings for consistent and meaningful testing.
Quote from: mdharrington on June 13, 2018, 05:48:10 pmIf TG can have an adaptable control (or equivalent) of the ray step length through the volume....then all things being equal density should appear equal in both TG renders and external.