BlendLuxCore Development

[B.Y.O.B.]

Added mist, vignetting, color aberration and background image plugins.

[jensverwiebe]

Great.
Possibly would make sense to have the tonemapping default on ?

[B.Y.O.B.]

Of course, thanks.
A typical "Copy-paste regression".

[B.Y.O.B.]

Added the contour lines plugin.

I think that was all of them.
In my opinion OUTPUT_SWITCHER is not needed because we now have proper Blender integration for AOVs.

By the way, LuxCore is missing the Glare plugin from Classic Lux.

[jensverwiebe]

Added the contour lines plugin.

I think that was all of them.
In my opinion OUTPUT_SWITCHER is not needed because we now have proper Blender integration for AOVs.

By the way, LuxCore is missing the Glare plugin from Classic Lux.

Looks all fine.
Glare and other s can be as well done with blender compositor. So no big loss

[B.Y.O.B.]

True. Some other plugins can also be done in compositor (like bloom or background image).
But I'll leave them, they are quick to use.

[B.Y.O.B.]

Thanks to Philstix I was inspired to write a material selection dropdown with search feature:

[kintuX]

Thanks to Philstix we now have a node with IOR presets - and you can even search them comfortably.

This is nice tho...

1. Glossy Material is still missing "Use IOR" option

2. Tried using IOR node for Mixing Materials (Matte + Glossy Coat, IOR pluged in 'Mix Factor') but that doesn't work.
'Material 1' gets occluded (black).

3. How can user add presets to IOR node? Is there a 'list' to which one could simply add more?

[B.Y.O.B.]

2. Tried using IOR node for Mixing Materials (Matte + Glossy Coat, IOR pluged in 'Mix Factor') but that doesn't work.
'Material 1' gets occluded (black).

IOR output is a floating point number (e.g. 1.5).
Mix factor is a floating point number that is clamped to 0..1 range (0: only show material 1, 1: only show material 2).
If you put any IOR greater than or equal to 1 into the mix amount, you will only get material 2.
All working as it should

I know what you mean though... you want a texture that evaluates the dot product between camera ray and surface normal.
Maybe we can add that. However I'm not sure it's super useful because most LuxCore materials already include the fresnel effect.
But extra flexibility is never wrong I guess.

3. How can user add presets to IOR node? Is there a 'list' to which one could simply add more?

You can fork the repo, edit the list and send a pull request as described here: viewtopic.php?f=5&t=9&p=1312#p1312
Here's the list: https://github.com/LuxCoreRender/BlendL ... ets.py#L21

[B.Y.O.B.]

1. Glossy Material is still missing "Use IOR" option

By the way I'm not sure why people keep nagging me about this feature and seem to be super keen on it.
If I look at the code, it just seems to be a scale factor for the specular color: https://github.com/LuxCoreRender/LuxCor ... y2.cpp#L56
So if your IOR is higher, you get a brigher specular color, and if it is lower, you get a darker specular color.
Please enlighten me why this is such a big deal.

Not meaning to sound rude, I'm genuinely interested.
By the way, the wiki says:

IOR of the coating. IOR overrides color Ks if both are specified

But this does not seem to be the case in the actual code.
Which of the two is wrong?