LuxCoreRender Forums

Dade wrote: Thu May 17, 2018 11:32 pm
You are confusing object transparency (or opacity if you prefer) with object surface+volume. Transparency makes all object (surface+volume) transparent, like with alpha channel. In your case must be set to 0, it is not what you are looking for.

The object material describes the surface (i.e. the "skin") of an object while volume describes the interior.

So what? You just don't want to see the pictures I attach. Look, the objects are completely white (it's the "Transmission color", I've tested it) . This is not how they should be.
And now for what I expected to see: Not some transparency or whatever.
But with a slightly different angle I see this: Somehow this doesn't happen to objects in example by B.Y.O.B.

I can reproduce a weird view-dependent effect in your scene.
https://youtu.be/oDtza9dQTYs

edit: I have check if the cause is this bug: https://github.com/LuxCoreRender/LuxCore/issues/106
But even with a pyluxcore from the v2.0.x branch the problem appears.

It also happens with sun+sky instead of an HDRI.
I opened a github issue: https://github.com/LuxCoreRender/LuxCore/issues/113

B.Y.O.B. wrote: Fri May 18, 2018 6:09 am I can reproduce a weird view-dependent effect in your scene.
https://youtu.be/oDtza9dQTYs

edit: I have check if the cause is this bug: https://github.com/LuxCoreRender/LuxCore/issues/106
But even with a pyluxcore from the v2.0.x branch the problem appears.

It also happens with sun+sky instead of an HDRI.
I opened a github issue: https://github.com/LuxCoreRender/LuxCore/issues/113

Don't know it will help, but I (suddenly!) remembered that this scene and materials was probably made originally with old lux, so I cheked that and found that that material has also old lux nodes. So I made new scene, added material in old lux, then switched to new, added nodes, but could reproduce the effect.
p.s. that means I can return to my grass, because double-sided glossy translucent actually works, though, not every time maybe. Thank you.

wasd wrote: Fri May 18, 2018 8:23 am Don't know it will help, but I (suddenly!) remembered that this scene and materials was probably made originally with old lux, so I cheked that and found that that material has also old lux nodes.

That is not a problem, they will be ignored.

I still can't finish this picture with grass and trees

Can you use heterogeneous volume?

Homo volume 10 min render


Hetero volume 10 min render