Random color per object Tweet

[agnes_io]

I know you can get random color per instance, but it would be very useful if it was possible to get a random color for any object in the scene, like redshift and arnold can do, to use for texture offsets or color offsets. There is a workaround to use mograph but that is not always practical.

Is there any way to do this in OSL?

[bepeg4d]

Hi,
you can do it also with c4doctane, with a couple of clicks.
Select all the desired objects, apply an Octane Object tag, and enter num in the Instance ID field, to assign a different sequential number to each object.
Then use the Instance Range node to pilot a gradient, or an OSL random projection node:

ciao Beppe

[agnes_io]

Great tip, thanks!

But where is the OSL random projection node? Can only see 'OSLProjection' which doesn't seem to do much...

[bepeg4d]

Have a look at here:
viewtopic.php?f=73&t=69211&hilit=random+osl+projection

ciao Beppe