LuxCoreRender Forums

But an IOR setting can be activated (I assume this does activate angle dependent (fresnel) reflection).
The question is what happens when inside a volume with the same or a different IOR, how is the fresnel effect calculated?


The related code: https://github.com/LuxCoreRender/LuxCore/blob ...

LuxCore uses a kernel cache so a specific version of the code is compiled only one time (i.e. the first time is used). The option to compile
many types of code fragments at once is also available (it is in LuxCoreUI).

If you run the pre-view 2 times in a row, you should notice that there is no ...

I should have fixed the problem.

lacilaci wrote: Wed Apr 03, 2019 1:10 pm Very interesting.. So I've figured there was a shading issue, autosmooth + bevel modifier changed shading and that resulted in the error.
The interesting part is that this type of shading issue doesn't seem to affect cycles at all. This is frustrating

So was it normal interpolation related ?

Thanks, I merged the pull request on "new_conv_test" branch so we can work there without hurry. Let's start:

1) There seem to be a problem on borders. You are always dividing by 81 (9 * 9) however the pixels near borders have less neighbors so the convergence values are not correct.

2) Can we ...

Done thanks you !


The scene you sent me uses "glass", not "archglass" :?:

It is pretty easy to spot, this is a direct light only rendering with "glass":


glass.jpg


and this if I switch to "archglass":


archglass.jpg


It works as expected. I looked into and edited the exported scene ...

Glossy is not a transparent material so there is no refraction at all Or are you mixing glossy with something else ?

Sharlybg wrote: Tue Apr 02, 2019 9:08 pm But can't understand why the box down is so dark. it is the same arch glass shader use for other transparent part of the frige.

If you post a test scene I can look into it.

As far as I remember Cycles glossy is based on GGX model, Lux glossy(2) was written a lot before GGX was even invented

Is the wall made of Glossy material ?


Yes, the problem is only appearing on glossy material


What kind of material do you use with Cycles ? I assume the black border is the result of too Lux glossy specular component and not enough diffuse componente.
I'm not happy of current status of ...