Peter Kutz
Peter Kutz
It is possible to analytically calculate the average albedo of the F82-tint model used for metal reflectivity in OpenPBR. Specifically, the average Fresnel can be calculated by integrating the reflectivity...
Think-film iridescence can be difficult to implement, and the paper we reference can make it even more complex due to advanced color-related transformations. This task is to add more implementation...
This PR revises and expands the thin-film iridescence section of the OpenPBR documentation. It includes: - A new paragraph describing the _locally spectral_ approach to modeling thin-film interference, as described...
This PR removes the upper bound on the supported range of values for `subsurface_radius_scale`. This lets this parameter be used to decrease the volume density, not just increase it.
Some equation references in the spec are lowercase while some are uppercase. To be consistent with figure references and technical paper standards, and to clearly show that these references are...