Search found 31 matches

by Mango3
Mon Sep 09, 2019 11:02 am
Forum: General Discussion
Topic: ACES tip
Replies: 11
Views: 855

Re: ACES tip

It is not that simple. To define a color space you need 3 parameter: primaries, white point and transfer function. ACEScg uses a different set of RGB primaries (AP1) than sRGB! So to use it correctly the render engine has to internally support rendering with said AP1 primaries and additionally all (...
by Mango3
Thu Aug 29, 2019 8:21 am
Forum: General Discussion
Topic: CGI tech news box
Replies: 170
Views: 39878

Re: CGI tech news box

Well you're comparing caching and guiding as if they're competing for which does a better job. Afaik these features aren't mutually exclusive, corona does pathguiding and uses caching. Also both vray's lightcache and corona's uhd cache don't suffer from lightleaks and can be used without problems f...
by Mango3
Thu Aug 29, 2019 5:12 am
Forum: General Discussion
Topic: CGI tech news box
Replies: 170
Views: 39878

Re: CGI tech news box

Some comments on this: The beauty of path guiding is it allows to keep the simplicity of path tracer without running into issues like, for example, light leaks associated with photons, yet it is capable of rendering complex specular-diffuse-specular paths. It is unbiased (no systematic errors introd...
by Mango3
Mon Aug 19, 2019 7:36 pm
Forum: User Support
Topic: dark juice
Replies: 131
Views: 3832

Re: dark juice

Uh ? No, LuxCore sample exactly all the visible wave lengths but only if required. Cycles trick produces a far worse results and it is totally inaccurate. Sorry Dade if I stated some incorrect comments about LuxCore. I think to remember that I read in this forum that when you rewrote LuxCore you de...
by Mango3
Mon Aug 19, 2019 6:36 pm
Forum: User Support
Topic: dark juice
Replies: 131
Views: 3832

Re: dark juice

Example : Dispersion node in cycles : http://blendernews.org/xe/files/attach/images/112/420/083ae40e6965f6442022d75cdd9065b7.jpg Dispersion in luxcore : disper.jpg The node setup in Cycles (variation of the IOR for R,G, and B is exactly what LuxCore does automatically in the core. It is not any mor...
by Mango3
Sun Aug 18, 2019 8:52 pm
Forum: User Support
Topic: dark juice
Replies: 131
Views: 3832

Re: dark juice

From what I found: Unbiased Photon Gathering is great, but unable to do SDS paths. Connection-based alghorithms can do SDS, but are biased. And there where Practical Path Guiding for Efficient Light-Transport Simulation by Thomas Müller, Markus Gross, Jan Novák on CGI tech news box thread, which cl...
by Mango3
Tue Aug 13, 2019 9:46 am
Forum: General Discussion
Topic: CGI tech news box
Replies: 170
Views: 39878

Re: CGI tech news box

This is, hand down, the best stuff out of SIGGRAPH 2019: "Path Guiding in Production" (https://jo.dreggn.org/path-tracing-in-production/2019/index.html) Having the author's implementation based on a well-known codebase (Mitsuba) is great, and I'm really looking forward to see it implemented in LuxC...
by Mango3
Thu May 30, 2019 8:48 pm
Forum: Development
Topic: Disney BRDF material
Replies: 101
Views: 6493

Re: Disney BRDF material

B.Y.O.B. wrote:
Thu May 30, 2019 8:34 pm
@lacilaci can you link the thread? I only know of this: https://devtalk.blender.org/t/principle ... 603?u=byob
The link to the thread on blenderartists is here:
https://blenderartists.org/t/ideas-for- ... rs/1162600
by Mango3
Thu May 30, 2019 7:24 pm
Forum: Works in Progress
Topic: Perfume Concept Design
Replies: 10
Views: 942

Re: Perfume Concept Design

First i tried aplleseed studio(not very user friendly :shock:),than tried blenderseed addon, which gave me a bunch of errors in latest 2.79 Blender build. Being somehow involved in appleseed development I don't want to hold you off using LuxCore, on the contrary. It is a great render engine. Just t...
by Mango3
Sun Apr 07, 2019 8:56 am
Forum: General Discussion
Topic: UE4 for archviz test demo
Replies: 3
Views: 561

UE4 for archviz test demo

Seem to me that UE is encroaching ever more on traditional archviz production options. I'm not from the field and cannot comment competently on the drawbacks of using UE or other Game Engines compared to a Blender/V-Ray or Blender/LuxCore workflow for archviz animations. But this is quite impressive...