worldpositionoffest rotation

[Tanuki]

So Im trying to make a material that I can apply to a basic card mesh that will make the mesh rotate around always facing the camera. The card has a small plant texture that Im using as part of my foliage so it basically just needs to always face the player camera.

I think this is done using worldpositionoffset and Ive found the rotateaboutaxis instruction. Is there a tutorial on this or has anyone tried to do it? If there is a better way to accomplish the desired effect like in the mesh somewhere that will work too.

[Tanuki]

so no thoughts on this?

[Forgetful]

Why not just use particle sprites? you could create a clump of them even and use a UV offset to show different plants/foliage.

[Fartuess]

...or lens flare

[Tanuki]

all of those suggestions would work but then I wouldnt be able to use them with a foliage system. Is there anywhere (possibly another forum) that might be better explain the worldpositionoffset and the rotateaboutaxis instruction in greater detail? The UDN didnt really help very much

[A Rabbit]

I toyed with this idea for a while, i think it may be possible. At least I got the foliage to rotate when the player rotated just never got it to sync properly.

I used unreal script to change the foliages materials variables, try looking at my vertex shader to get a better idea how to modify the variables.
http://forums.epicgames.com/showthread.php?t=718347