constructive geometry

[Pixel_Outlaw]

Just out of curosity has anyone here pulled off constructive geometry like adding and subtracting solids? I did see it in a demo once.

[Shockwave]

What sort of effect do you mean?

Can you describe it a bit more?

[Btw I split the topic because this seemed like a question on it's own]

[Jim]

Imagine taking a sphere and a square bar 3d object.  Stick the square bar through the sphere and subtract it away leaving a square bar shaped hole through the sphere.  Extend that to all kinds of shapes so you can add/subtract one shape from another.  It's called CSG - constructive solid geometry.

And, no, except for the most trivial stuff, I've never done much with it.

Jim

[Shockwave]

Ah, in that case I've never done it myself but I have seen in done in a demo..

http://www.pouet.net/prod.php?which=24952

It's a pretty neat effect!