I’m having trouble finding a way to scale point sprites. I’m using them for my particle engine and for a few other features in my game, so I would really like to be able to scale the point sprites so my particles are not always uniform. Any help is greatly appreciated, thanks!
Point Sprite assumes EXT_point_parameters support.
http://oss.sgi.com/projects/ogl-sample/registry/ARB/point_parameters.txt
Here’s a tutorial on it but using the original SGI extension:
http://www.opengl.org/resources/code/rendering/mjktips/particles/index.html
So using point parameters you can give your points a size that varies by range so your point sprites have a scale.
Be aware that point parameters implementations have size limitations that vary accross platforms.