Search found 33 matches

by tokiop
Fri Nov 27, 2020 5:51 pm
Forum: User Support
Topic: Specular reflection vs diffuse reflection.
Replies: 21
Views: 1019

Re: Specular reflection vs diffuse reflection.

It seems "simple/single number IOR" are only valid for dielectrics, non-dielectics materials like metals requiring "Complex/full IOR" with more complex equation and additional components/values. Maybe the "simple" real IORs that can be found in some list, for some metals for example, don't make sens...
by tokiop
Fri Nov 27, 2020 3:40 pm
Forum: User Support
Topic: Specular reflection vs diffuse reflection.
Replies: 21
Views: 1019

Re: Specular reflection vs diffuse reflection.

The mixer test would be perfect if you would be allowed to use a fresnel function to blend the nodes. It cannot be a constant value (like it is in maxwell after version alpha) but a value which varies accordingly to the incidence angle. It is pure non technical speculation, but as I understand : IO...
by tokiop
Thu Nov 26, 2020 8:29 pm
Forum: User Support
Topic: Specular reflection vs diffuse reflection.
Replies: 21
Views: 1019

Re: Specular reflection vs diffuse reflection.

B.Y.O.B. wrote:
Thu Nov 26, 2020 7:24 pm
Color values in the materials are clamped to (0, 1)
thanks for the info and your work B.Y.O.B. !
by tokiop
Thu Nov 26, 2020 6:02 pm
Forum: User Support
Topic: Specular reflection vs diffuse reflection.
Replies: 21
Views: 1019

Re: Specular reflection vs diffuse reflection.

Hi Daros, your material-testing setup is great ! Happy to see you here, I remember your quality works from Maxwell days :) The fringe looks like it could be IOR related. Not sure how it is taken in account by the various shaders. Mixing a Matte and Glossy material seems to provide better control ove...
by tokiop
Fri Oct 30, 2020 9:43 am
Forum: General Discussion
Topic: Luxcore today
Replies: 3
Views: 1026

Luxcore today

Hi community, in case you missed it, LuxCore was mentioned in last Blender Today Live . Pablo is not most up to date regarding LuxCore, therefore mentioned the idea of inviting a guest to talk about it. It looks like a nice idea, maybe if devs or advanced users here are interested, it could help get...
by tokiop
Tue Sep 29, 2020 3:00 pm
Forum: Finished Work
Topic: Luxcore product advertising
Replies: 11
Views: 1561

Re: Luxcore product advertising

Congratulations for the great job, and thanks for all that you do for Lux ! You show that non-developpers can contribute a lot for FLOSS creative tools ! 8-)
by tokiop
Wed Jul 29, 2020 12:44 pm
Forum: Development
Topic: Camera non uniform bokeh support
Replies: 31
Views: 4350

Re: Camera non uniform bokeh support

Wow awesome !! :D :lol:

The bokeh-logo in the second's sphere reflection is very neat..
by tokiop
Sat Jul 25, 2020 3:33 pm
Forum: User Support
Topic: Complex Anisotropic Texture
Replies: 5
Views: 796

Re: Complex Anisotropic Texture

You can buils such texture in Inkscape for example : multiple-anisotropic-texture-height.resized.png make a document 1024x1024 px add a 1024x1024 circle with radial gradient, repeat : reflected, scale the gradient proportional with ctrl+shift to make the groves smaller (the size you want) create clo...
by tokiop
Thu Jul 23, 2020 4:11 pm
Forum: Development
Topic: Camera non uniform bokeh support
Replies: 31
Views: 4350

Re: Camera non uniform bokeh support

Nice feature, thanks Dade! On the subject, some renderers can make use of an "aperture map", an image texture providing the bokeh shape, for example to produce "heart bokeh", or simlate imperfections. Not sure how useful it is, but being able to provide a map is user friendly.
by tokiop
Thu Jul 16, 2020 12:22 pm
Forum: User Support
Topic: Angular roughness/Angular glossiness
Replies: 22
Views: 2649

Re: Angular roughness/Angular glossiness

How I understand this question is similar to the "The grass is always greener on your neighbor's yard" proverb : seen from the top, we mostly see the brown ground, but seen from the side, everything looks green. If a physical surface has a lot of microscopic hills, seen from the front, reflections a...