Marble-like shader for eyeglasses?

[Monogon]

Hello There,

does anybody know to approach a material like this?

Cheers
Felix

[super gnu]

im sure you could do something with vray environment fog constrained inside the mesh, but it would be pretty slow to render.

[Macker]

Pretty sure the fog colour will do exactly this, now that it supports maps.

[Vizioen]

Pretty sure the fog colour will do exactly this, now that it supports maps.

Can't the 3D berconmaps be used here?

EDIT: quick test. Together with an SSS or translucency material and in a vrayblendmtl with a glossy topcoat should do the trick?

[super gnu]

yeah, you could get something reasonable with fog colour, but iirc its not truly volumetric. its only a surface effect. i was veery excited when it was first made mappable, and the first thing i did was plug a 3d texture into it, but it didnt give the 3d effect i was hoping.

ive not played with it but the new vrayscattervolume material in 3.0 should also handle this type of material.

[super gnu]

scrub all that.. the vray sss2 material with color mode set to "scatter coefficient and fog color" seems to work well. i had a quick test, nothing approaching the material in question (will need some work to get right, and im on a deadline) but setting the mode to raytrace, and putting a noise map in the scatter radius slot will give the volumetric colour changes inside a glassy material.

[Jason Stewart]

I think regular VrayMtl would be fine with translucency. There was a good write up on how to use translucency a few weeks back that I found very helpful.

[Mokiki]

Just had a quick go using vraymtl + translucency. The brighter yellow/orange parts aren't exactly right and still require more tweaking. But I think you can get it working with just the vray mtl.