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Showing results for tags 'lights'.
While doing some render system refactoring I noticed that projected lights were not rendering correctly in lighting preview mode, and thought it was something I had broken until I regressed to earlier revisions and discovered that it has actually been broken for some time (in fact I tried checking out revisions from 3 years ago and the problem still reproduced). Projected lights are something of a "bug trap" because I think most mappers don't use them or the DR lighting preview very much and therefore they don't get a lot of testing. The behaviour I see is that while the rendered light pr
While working on fog issues, I noted that the spectrum keyword (which allows you to pair lights to materials based on spectrum number value) does not have an entity arg. I was considering adding one to make the spectrum feature a little more useful but it struck me that the main use case for spectrum outside of "hidden writing" is trying to keep lights from illuminating unintended surfaces. In that context, we would not want to manually specify the matching spectrum number for everything we want to be lit but rather we would want to have a flag that says "light everything except this".