LuxCoreRender Forums

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

https://blenderartists.org/t/ideas-for- ... 1162600/71

It's there, it was split thread from cycles development updates cause it was a mess.

In a paper published recently "http://jcgt.org/published/0008/01/03/" they cite an imageworks paper in which they discuss improvements they made to the principled (disney) shader to include better energy conservation, and analytical multiple scattering micro- facets. It's a pretty good read and covers at least the energy conservation byob brought up earlier regarding blenders implementation of clear coat.

From the original Disney paper, that Dade linked earlier:

For our clearcoat layer, we use a fixed ior of 1.5, representative of polyurethane, and instead allow artists to scale the overall strength of the layer using the clearcoat parameter. The normalized parameter range corresponds to an overall scale of [0, 0.25]. This layer, even though it has a large visual impact, represents a relatively small amount of energy so we don’t subtract any energy from the base layer. When set to zero, the clearcoat layer is effectively disabled and incurs no cost.

https://disney-animation.s3.amazonaws.c ... tes_v2.pdf

I have written the OpenCL code.

Dade wrote: Wed Jun 05, 2019 3:15 pm I have written the OpenCL code.

Excellent! When is a latest build available?

I downloaded latest build of luxcore for blender and still no disney shader WTF!

Dade wrote: Wed Jun 05, 2019 3:15 pm I have written the OpenCL code.

Serial coder

I'm also checking a bit the code because some of the outputs doesn't look right to me.

madcat117 wrote: Wed Jun 05, 2019 3:57 pm I downloaded latest build of luxcore for blender and still no disney shader WTF!

Hold up, it has to be added to BlendLuxCore as well, it's literally only hours since it's been completed in LuxCore.

Simon will add it soon when he has the time, no need to be rude