Colored Glass

[dchero]

Hi everyone,

I couldn't colored glass materials in skindigo. I tried to change surface color in specular but no chance.
I want to render my glass like plexiglas. Red,blue,yellow etc..

I need some help here

[galinette]

There is a recent topic on a very similar subject here:
http://www.indigorenderer.com/forum/vie ... 38&p=96991

The idea behind this : for a colored transparent material, color does not come from the interface properties (like the one you define in the specular model) but from the associated medium properties. Light is not colored when entering or reflecting on the surface, but while travelling inside the material.

Etienne

[dchero]

wow! you are the king
that solved my problem

[ieatfish]

I uploaded a few colors (red,green,glue) to the material database. You can change the IOR in the file to whatever medium you'd like as well.

[dchero]

I got it thanks. Soon I'll upload some renders from my project

[dchero]

What can you tell me about these?
Any advice?

[galinette]

Your glass bricks look "hollow". Was this intended, or do you want to make solid glass volumes?

In that case, you did likely forget to put a refractive index to your mediums, such as 1.52 for glass. There is no visible refraction here, which makes the blocks look like empty plastic boxes.

Also, you can add some dispersion by setting cauchy B coefficient to 0.02. But this slows the renderer (it seems to switch from broadband wavelength path tracing to per-wavelength path tracing when reaching a dispersive material)

And finally, just check that you colored the medium, not the material.

With all these, it should look ways more realistic.

Etienne