LuxCoreRender Forums

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...

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 edite...

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 LuxCore mater...

@Dade I think that DLSC should have more love. Using it together with PGI is a nice combo to take down rendertime but, in my opinion, should be developed further to correct splotches. Yes, I have somewhat the problem to decide which route to take: I could integrate DLSC into PGI with many benefits....

Is the wall made of Glossy material ?

This is interesting, the problem is due to Intel Oidn: FYI, It looks like the problem is not related to camera motion blur but a problem of Oidn with totally black surfaces. You can find the details here: https://github.com/OpenImageDenoise/oidn/issues/22 It is a corner case but it is better know.