Search found 1456 matches

by B.Y.O.B.
Sat Dec 15, 2018 4:36 pm
Forum: User Support
Topic: Realistic simulation of camera and laser
Replies: 13
Views: 296

Re: Realistic simulation of camera and laser

It might be that those paths are very hard or impossible to render with the glass material (perfectly specular surface). You might need a more advanced algorithm for them, e.g. BidirVM. You could try with BidirVM, it's available in luxcoreui. See this post for more details: https://forums.luxcoreren...
by B.Y.O.B.
Fri Dec 14, 2018 3:17 pm
Forum: Works in Progress
Topic: playing with caustics
Replies: 19
Views: 1013

Re: playing with caustics

lacilaci wrote:
Fri Dec 14, 2018 2:07 pm
I run both windows 10 pro and ubuntu 18.10 and so far I haven't noticed any significant differences on either cycles or luxcore.
Note that this only concerns C++ CPU rendering, not OpenCL/CUDA.
by B.Y.O.B.
Fri Dec 14, 2018 1:39 pm
Forum: Works in Progress
Topic: playing with caustics
Replies: 19
Views: 1013

Re: playing with caustics

Cool! I think I read somewhere that rendering with Cycles on Win10 was slower than on Win7 or Linux. And maybe the Spectre and Meltdown patches are slowing down things? This is the case since years before Spectre/Meltdown were discovered. I don't know if the same applies to LuxCore, someone should t...
by B.Y.O.B.
Thu Dec 13, 2018 4:58 pm
Forum: User Support
Topic: Realistic simulation of camera and laser
Replies: 13
Views: 296

Re: Realistic simulation of camera and laser

Opacity=1 is the default.
I should have said "you should leave it at 1" instead of "not use it".
CodeHD wrote:
Thu Dec 13, 2018 2:46 pm
What exactly do you mean by "like alpha" then?
Like transparency in an image manipulation program or a compositor.
by B.Y.O.B.
Thu Dec 13, 2018 12:01 pm
Forum: User Support
Topic: Realistic simulation of camera and laser
Replies: 13
Views: 296

Re: Realistic simulation of camera and laser

Opacity is a common property of all LuxCore materials, meaning it's not specific to glass.
It is a bit like alpha transparency.
If you want the glass to be physically correct, you should not use it.

I think FarbigeWelt meant "vanish" in the sense of "being transparent".
by B.Y.O.B.
Wed Dec 12, 2018 11:24 am
Forum: User Support
Topic: Light strategies and importance change lighting
Replies: 24
Views: 381

Re: Light strategies and importance change lighting

Dade wrote:
Wed Dec 12, 2018 10:47 am
- no clamp of hard to render caustics (i.e. group of bright pixels), etc.
But aren't fireflies always hard to render caustics?
So the longer you render, the more caustic paths are found and eventually any single firefly develops into a clump.
by B.Y.O.B.
Tue Dec 11, 2018 4:18 pm
Forum: Development
Topic: Usability and Luxcore workflow streamlining ideas
Replies: 40
Views: 693

Re: Usability and Luxcore workflow streamlining ideas

Thanks for the mockup, those are always a great help and make the discussion more concrete.
by B.Y.O.B.
Tue Dec 11, 2018 1:55 pm
Forum: User Support
Topic: Problems with specular reflection and homogeneous volume
Replies: 10
Views: 162

Re: Problems with specular reflection and homogeneous volume

v2.0 contains a bug in the camera's volume auto detection, if I remember correctly.
You could use v2.1beta3 instead.
Or you have to specify the correct volume in the camera settings manually.