instancepoint expression

[woodenduck]

Hello,

I am instancing multiple pieces of geometry on to a particle network. I am using a point exp<b></b>ression and instancepoint() in my shader to apply the particles Cd attrib to the instanced geo. My problem comes when the particles die, as the instancepoint references the point number, which causes the geo colour to change. What I really want is an inatanceid() exp<b></b>ression to reference the particles id attribute.

Anyone have any ideas?

Much obliged,

WD

[anim]

you can easily get id of the current point by using point expression, then use it for whatever you want

point("/path/to/your/particlegeometry", instancepoint(), "id", 0)[/CODE]

but maybe easier can be to precompute all data like color etc on particles then access them directly with point() expression

like

[CODE]point("/path/to/your/particlegeometry", instancepoint(), "Cd", 0)
point("/path/to/your/particlegeometry", instancepoint(), "Cd", 1)
point("/path/to/your/particlegeometry", instancepoint(), "Cd", 2)[/CODE]

Edited December 5, 2013 by anim