I wanted to make 2 shaders that could easily be used for showing particles for instance.
In the case where you want to use billboards, point sprites can be faster, but I would like to be able to switch between them without having to tweak anything.
Having inspired my shader heavily on Viktor Vicsek’s point sprite fx, it scales properly perspective-wise, but I am having trouble to get the same scale on every renderer. That is, the viewport size seems to influence the way it looks.
I attached a patch that shows this, and I was wondering if anyone knew how I could get rid of this viewport dependence (if at all possible).
point sprite size control.zip (5.2 kB)