What is the maximum number of triangles a geo shader can output

The limit is 1024 scalar attributes. So, if your vertex (which is an output for VS and an input for GS) consists of 3-float position, 2-float tex coordinate and 4-float color, you have 9-float vertex, which means 113 vertices at max. So the maximum number of triangles in that case will be 111 (a very long strip).

However, on early HW at least, large vertex count becomes impractical (read: slow). Though things may change in some time.

KapoulkineArseny at 2007-9-3 >