ARB_point_sprite and shaders

OpenGL
1

Hello,

I wanted to know if it is possible to render point sprites using shaders. If possible, how do we render it in the shader?

Thank you!

2

Kinda depends on the hw.

Anything less than sm4 hw you can roll your own with a vertex shader trick by stuffing your quad vertex offset/index into you per-vertex data.

With anything greater than sm4 hw you can create your own axis aligned quad in a geometry shader.

3

Also with SM4 you can use instanced rendering. :smiley:

4

Sure it’s possible:
http://lumina.sourceforge.net/Tutorials/Point_sprites.html

5

Thanks oc2k1! It work as per the link you provided.

6

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