LuxCoreRender Forums

The author of the technique byob shared is the same developer who wrote the tangent space normal mapping standard we use in lux. He has actually posted a new method that is state of the art. It also allows mixing of bump and normal maps, and to my knowledge doesn't require uvs. He also provides sou...

The author of the technique byob shared is the same developer who wrote the tangent space normal mapping standard we use in lux. He has actually posted a new method that is state of the art. It also allows mixing of bump and normal maps, and to my knowledge doesn't require uvs. He also provides sou...

marcatore wrote: ↑Thu Jan 09, 2020 8:43 am Dade, you say that you need a "space" to reference the axis...but why object space or world space is not suitable?

It is not an object "space" but the intersection point "space" (i.e. Z along the point normal, etc.).

Is it possible to exclude some objects from baking? I know one can change render settings individually editing the config file, but naming conventions are still a bit difficult for complex scenes, and finding the correct objects is quite hard... But even with small render setting these objects do r...

Cycles seems to use this method: Bump Mapping Unparameterized Surfaces on the GPU https://github.com/sobotka/blender/blob/master/intern/cycles/kernel/shaders/node_bump.osl As far as I understand, this looks like bump mapping done in "screen space". It uses the partial derivative of screen...

Why should UV's have something to do with Triplanar? I mean, Triplanar is there to avoid UV's so in any case Triplanar should ignore current UV's, right? See above, it is (supposed to be) a problem specific bump mapping (and some other specific stuff like anisotropic highlights orientation of gloss...

Both of these issues only go completely away with proper UV's (at which point you might as well use that instead of triplanar!) This problem is present only for bump mapping and I'm not aware of a solution. To explain the problem: you need a XYZ reference system to apply bump mapping. The shading n...

lacilaci wrote: ↑Wed Jan 08, 2020 10:34 am You say one for each light. Even regular area lights are building their env.cache?

No, no, only for env. light sources (i.e. HDR, Sun, Sky, etc.)

I should have already fixed that bug, you just need binaries from the very last sources. So the daily build on github either isn't up to date, or the problem(s) still exists. I should have now fixed this problem too: it was related to using a transformation in triplanar node (it was already working...

lacilaci wrote: ↑Wed Jan 08, 2020 10:12 am Oh, so environment cache is stored together with photongi? same file?

No, it is a separate file/setting. I assume it should be available on the light panel among other parameters (there is one cache for each light).