Arnold toon shader test

I am starting to test Arnold Renderer in Houdini Solaris. it took me a while to figure how to makes it work in Solaris context. I’ve need to create beauty render pass and render product with contour sampling.

its work pretty good, there some crashes from Solaria. the live render navigation is difficult to navigate, because it take 2nd sample round to generate hatches.
the shading is yet quite simple, but i will start to generate more complex toon shadings.

refraction rendering Anrold vs Indigo

I’ve did little test to compare Arnold refraction rendering vs Indigo renderer. since Arnold used spectral calculations for refraction, it was interesting to see how its sticks up to full spectral renderer like Indigo.

the render settings are fairly optimized for Arnold, Indigo gives not much room for optimizing. to be as fair as possible i use only pure the path tracer in Indigo. Anrold6 GPU is disappointed like always.
GPU was Nvidia quadro RTX 6000 with clockspeed at 1455 Mhz, the CPU was Intel XeonE-2276M at 2.8Ghz


2 minutes render time

it turns Arnold and specially ArnoldGPU is extremely bad with HDRi textures. with physical sky the times improved by the factor 3-6. with resolution limits on Hdri, Arnold gets a decent speed up, but Arnold GPU calculates forever on noises.

marble rendertest

Inspired by great Marble renders and Shader hack by Lee Griggs. I’ve decided to recreate some tricks with different render engines, a little render Comparison.

The basic idea, using a glass shader for outter shell and an inner sphere with textured volume to fake depth. this way, you will save a lots of work with actually modeling the inner part of a marble. Spectral renderer don’t use this kind of trickery they can actully the inner part as real glass medium (using textures).

I’ve use Cycles (Blender), Renderman, Arnold, Octane and Indigo Renderer. I’ve tried to create a Marvel in Redshift, but i could make it work with single texture and 2 spheres. For Redshift you need actually model a marvel to get realistic rendering.

the spectral rendere engines was the fastest by far. that’s because with spectral render I used a medium instead of volume for interia, that’s saves a lot of render time.

here is quick test with single glass object with Indigo and Cycles :

this here are glass spheres with regular solid texture spheres inside: