Search found 26 matches

by JoeDDD
Tue May 12, 2020 9:39 am
Forum: Development
Topic: Thin-film Interference
Replies: 6
Views: 9187

Re: Thin-film Interference

B.Y.O.B. wrote: Mon May 11, 2020 5:39 pm I have added support for thin-film interference to the following materials:
  • Glass
  • Arch. glass
  • Rough glass
  • Disney
Would it be possible to add film option also to anisotropic metal shader? Because the disney anisotropic works kinda weird and has less options.
Great addition btw!
by JoeDDD
Mon Oct 21, 2019 5:31 pm
Forum: User Support
Topic: Dark volume with glass problem
Replies: 10
Views: 6670

Re: Dark volume with glass problem

Dade wrote: Mon Oct 21, 2019 5:13 pm That is a MIS (Multiple Importance Sampling) bug, can you post the test scene ?
That picture is just a material preview screenshot of a mirror material and nothing else really.
by JoeDDD
Mon Oct 21, 2019 3:46 pm
Forum: User Support
Topic: Dark volume with glass problem
Replies: 10
Views: 6670

Re: Dark volume with glass problem

I think the best solution for you would be to use an OpenVDB to describe the heterogeneous volume and PhotonGI caustic cache to render under water light. But I have no idea if there is out there a tool to model such volume. I have seen this kind of stuff over time so I assume some one has looked in...
by JoeDDD
Mon Oct 21, 2019 2:14 pm
Forum: User Support
Topic: Dark volume with glass problem
Replies: 10
Views: 6670

Re: Dark volume with glass problem

Air IOR is 1 not 0 :?: IOR is the ratio between light speed in vacuum and light speed in your volume. Air has a light traversal speed very near to vacuum so IOR air is about 1: https://en.wikipedia.org/wiki/Refractive_index A IOR of 0 can not exist by definition of IOR (it would require a volume wi...
by JoeDDD
Mon Oct 21, 2019 1:39 pm
Forum: User Support
Topic: Dark volume with glass problem
Replies: 10
Views: 6670

Dark volume with glass problem

This is glass material with ior = 1 , opacity = 0 with homogenous volume https://i.ibb.co/mzzhCft/opacity-0-homvolume.png And this is glass material with ior=1 (air) and opacity = 100% and with the same volume setup . https://i.ibb.co/pwrMz4w/ior-0-homvolume.png Both pictures should look the same bu...
by JoeDDD
Wed May 01, 2019 10:19 am
Forum: Development
Topic: Material/Texture rework in v2.4
Replies: 38
Views: 25430

Re: Material/Texture rework in v2.3

Some suggestions: -better glass material (gets dark when rough, architectural rough option, reflection strength) -specular slider for glossy materials -film width and film index for iridescent materials -multiple uv maps -color ramp -fresnel node -bevel node -microdisplacement -principled shader -mo...
by JoeDDD
Mon Apr 29, 2019 4:41 pm
Forum: User Support
Topic: Shadow Catcher problem
Replies: 12
Views: 7788

Re: Shadow Catcher problem

Where can I find "only infinite lights" option? And another thing I noticed is that the shadows are more reflective which is really odd.

Image
by JoeDDD
Mon Apr 29, 2019 6:49 am
Forum: User Support
Topic: Shadow Catcher problem
Replies: 12
Views: 7788

Shadow Catcher problem

When I use shadow catcher with the area lamps the edges of the shadow catcher get darker. When I use a glossy material for the shadow catcher the difference becomes more noticeable because everything gets very reflective. Is this a bug or am I doing something wrong? here is the blend file: http://pa...
by JoeDDD
Sat Feb 09, 2019 4:39 pm
Forum: User Support
Topic: OpenCl error on windows
Replies: 5
Views: 4309

Re: OpenCl error on windows

B.Y.O.B. wrote: Sat Feb 09, 2019 4:27 pm You can also download luxmark to see your OpenCL devices.

By the way, what kind of scene do you try to render? one of the example scene, or your own? Does it work with the default cube?
Even with the default cube I get the same error message
by JoeDDD
Sat Feb 09, 2019 4:16 pm
Forum: User Support
Topic: OpenCl error on windows
Replies: 5
Views: 4309

Re: OpenCl error on windows

When I try to render with my gpu I get this error: "OpenCL device selection string has the wrong length, must be 3 instead of 1" I have tried to reinstall the addon (opencl supported) and it still doesn't work. Do you have multiple OpenCL platforms ? Like Pocl and AMD or NVIDIA OpenCL ? T...