Search found 2574 matches

by Dade
Wed Oct 09, 2019 9:40 am
Forum: User Support
Topic: Curvature using hitpoint info
Replies: 19
Views: 698

Re: Curvature using hitpoint info

BTW, have you tried the Pointiness support ? From your links, it may be what you are looking for: https://wiki.luxcorerender.org/Shape:_Pointiness I don't think it is possible to do anything with current texture nodes but it may be easy to add a new one that just export the "curvature" information. ...
by Dade
Wed Oct 09, 2019 8:40 am
Forum: User Support
Topic: Curvature using hitpoint info
Replies: 19
Views: 698

Re: Curvature using hitpoint info

Would it be possible to calculate curvature using world position and normal data? I've been trying to make something, but couldn't get the math working :D. My idea was to use world position to calculate height difference between points with given offset. Any ideas or is it possible at all? But do y...
by Dade
Wed Oct 09, 2019 7:56 am
Forum: Development
Topic: OpenVDB support
Replies: 33
Views: 5780

Re: OpenVDB support

it is in a very early stage and it doesn't work with e.g. houdini VDB files on my side because the OpenVDB library isn't compiled with blosc support. It is https://github.com/LuxCoreRender/WindowsCompileDeps/blob/master/x64/Release/lib/blosc.lib but, may be, is a OpenVDB/Blosc version problem ? I w...
by Dade
Wed Oct 09, 2019 7:50 am
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

Is it possible to only support these features in some very specific render engine, like PATHCPU and PATHGPU only, also some forbidden "feature combination"? When one of the faking features are enabled, you can do some very strict checking and refuse to render, instead of giving inconsistent/messed ...
by Dade
Tue Oct 08, 2019 8:33 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

this hybrid glass sounds totally like a good solution for lot of rendering issues. Does it work with roughness option also (or will it work for rough transparent surfaces in near future)? Yes, it works with any materials. Could you imagine to calculate the transparency according to Fresnel equation...
by Dade
Tue Oct 08, 2019 8:28 pm
Forum: Development
Topic: LuxCore v2.3 proposed features
Replies: 83
Views: 3726

Re: LuxCore v2.3 proposed features

one more question is it already too late to ask what happend to the features that were postponed from V2.2? I placed some wishes for integration of more scientific material definitions (like tabulated data from old lux render) I really have lots of troubles to transfer wavelenght dependent material...
by Dade
Tue Oct 08, 2019 5:55 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

BTW, I'm not even to have looked in all possible problems of this new feature so it may need some intensive testing.
by Dade
Tue Oct 08, 2019 5:51 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

Just yesterday I had some werid crazy request on removing some shadows and reflections, it's a lot of work "photoshopping" it out but in cycles(also corona vray etc..) I just enable/disable some object flags or rayswitch to modify those features and I'm done... I know the community around luxcore s...
by Dade
Tue Oct 08, 2019 4:13 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

Good, so it's finaly possible to make thick glass panels and lightbulbs etc.. Yes, it solves also the "lamp inside glass" problem. It is a more general solution of the back-face only transparency however the later doesn't break energy equilibrium. Btw. will this work with disney material too? Yes b...
by Dade
Tue Oct 08, 2019 4:09 pm
Forum: Development
Topic: Shadow rays transparency for path tracers (aka hybrid glass)
Replies: 16
Views: 918

Re: Shadow rays transparency for path tracers (aka hybrid glass)

About the last renders about the juice glass. the shadow we see on the "hybrid" glass is just the shadow of the juice or the shadow of juice and glass? The shadow of the glass is very very light: 0.95 0.95 0.95 (95% of incoming light is transmitted). So it is mostly juice shadow, the glass has near...