Drawing Sector around GameObject in GameView: GUITexture or 3D Object

Questions & Answers
1

What is an efficient way to draw a sector around a gameobject as shown below?

From the forums I read about drawing via Gizmos (not applicable in GameView), Projections, GUITextures and drawing a Textured 3D cylinder/sphere GameObject (would it work?) to probably achieve this effect.

Between GUITexture vs 3D cylinder/sphere approach what would be better?

Projections I read, might take up too many draw calls.

alt text

2

For what I understand, Projectors (that’s what you mean by projection ?) redraw the things they touch, so that’s a lot of draw calls. I’d say go with a plane shaped as a triangle with a transparent unlit shader.