New answers tagged raytracing
1
This is conceptually a bit perplexing because it is a bit counter intuitive. You do not account for it. Why not?
Lets assume the plane covers atleast one pixel at the furthest distance. It is true that the light attenuates like a point light. But see there is another point light right next to it, and another point. This cancels the effect. So yes individual ...
3
Most manufactured items that are made by grinder, milling, shaper or lathe that have not been polished. Due to tiny grooves caused by the cutting head.
Intentionally brushed surfaces. Mainly to make it harder to see scratching. Used for example on metal panels of elevators, escalators etc.
Hair, animal or human. Hair has a microstructure much like a surface ...
4
A really common case in the real world are industrially fabricated metal surfaces which often contain patterns (due to their creation process) with strongly anisotropic surface distributions, especially if they haven't been polished.
Some of these patterns may only occur at the macro scale from common viewpoints (i.e. irrelevant for your BRDF), but on a lot ...
2
What you're looking for is called tone mapping, which is the process of mapping from HDR color values generated by a physically based renderer, to LDR color values suitable for display on a screen. It also incorporates changes in saturation, such as desaturating the color when the values get very bright. You will likely also need exposure compensation prior ...
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