Need help with gem shader

[Ozbend]

The gem with glitter. All methods that I know is not good.

[burnin]

Checked this?

Specy Flakes materials (carpaint, snow, sand... advanced)

Just found an article about V-Ray’s practical stochastic rendering of ‘spec-y’ things by Mike Seymour on fxguide. "Materials such as snow, sand, metallic paints, rough plastics, and metals often exhibit a bright sparkling or glittering surface feature, as anyone who has rendered a metallic paint 3D car will know. These features can catch the light and vary based on your orientation to the surface and the light sources. Having this characteristic spec ping can make a huge difference to how …

or

How to make this glitter material?

Hi guy! I have problem in making this material for cosmetic product! Here is the original: [image] and this is my node setup! [image] [image] I can see the glitter effect but it is not nice, shiny and obvious! I tried to add a bit of bump because as you can see the glitter effect is not flat in original! Could you please help me out with my node setup Thank you for your time

BTW, from your reference image it’s not clear, if the object is a gem (precious stone) or fake plastic kitsch. Define…

[moony]

OP - you need to start posting higher resolution example images. Your orb thread contained a similar, tiny, very low resolution image and it makes it difficult for people to see what it is you are trying to achieve.

It’s not clear from your image whether you want to replicate actual glitter or refractive dispersion (like you get on a diamond).

If it’s the latter - you could look at some examples in this thread:

Will cycles get dispersion effects?

You can achieve dispersion a number of ways in cycles. The first and easiest method is to add three glass shaders. Each glass shader is set to either R, G or B - and the IOR is set differently for each one. This method is quite slow because you are using multiple glass shaders. The second method is to add a procedural texture - then drive the RGB and IOR values through it. If you make the texture size small enough - you’ll get the dispersion effect without actually seeing the texture. I al…

[Ozbend]

Sorry, now I haven’t better quality refer. But thanks for your responds.

[zanzio]

Do either of these work for you?

Heres the blend file:glitter ball.blend (527.4 KB)

[Ozbend]

My shader looks exactly the same.

[ouraf]

the only thing missing is to make a sphere around the “glitter ball” with a glass shader and some transmission properties

[Ozbend]

I know, but I can’t, because I’ll assign the shader to thousands of models by automatic script.

[RickyBlender]

1000’s ?
can you elaborate

with that many objects blender might get very sluggish
unless you use some Group instancing !

happy cl

[Ozbend]

I have an addon. He loads model one by one to scene, assigns materials (I can choose which material to use), render it from few cameras (I can choose which camera to use) and saves images.

[zanzio]

I’d imagine that a volumetric shader of some kind along with a simple glass shader for the surface would do better. Unfortunately, I’m not very good with volumetric stuff, so I can’t do better than this using shaders alone.

@Ozbend

I have an addon. He loads model one by one to scene, assigns materials (I can choose which material to use), render it from few cameras (I can choose which camera to use) and saves images.

Maybe it’s best to make an addon that creates a particle system that fills the volume of the object with objects that have the look you want. I don’t know python, but It doesn’t sound too hard to make.