Random object visibility with MaterialByElement & Opacit

V-Ray V-Ray Common Tutorials, Tips & Tricks
1

I did a quick “tutorial” about a technique I used in some project to simulate randomness in architecture, or in any kind of geometry. If you have to do a facade of randomly opened shutters for example

here it is : http://blog.pixelab.be/2007/10/tutorial-random-object-visibility-in.html

It is a flexible method but I was wondering if some of you had already faced the problem, and how do you treat it ? Any advice or method on how you treat randomness in general is useful here :slight_smile:

Does my method has any drawback in term of performance (AA? Transparency ?)

I also remebered a quick script to make random blinds : Fassadeblinds for max4/5 but you have to recreate the object for each modification you want to do…

2

Very cool. Thanks

3

Very usefull, thanx.
I use blurscripts “RandomFaceSelect” for selecting random faces on an object, this way u dont need to break all the vertices of your object, then just assign the null mat to the selected faces, or delete them.

4

this is very clever.
i like to keep things parametric because of client changes.