I just figured out that controlling things based on the distance from camera is really usefull. For example HW particles (mainly points and streaks) are sized in pixels. So no matter how far they...

Ok here's one which I just figured out.

Driving a shader attribute with distance from camera

Let's dig in to this with an example:

1. Create a lambert shader
2. Create a ramp texture...

Here's a little tip. If you use the seed() function you can be sure your expression with rand() functions run always the same way.


{
seed(1234);

float $foo = rand(-5, 5);
}