Is it possible?
I sort my 2D meshes so I can achieve true order independent
transparency. But I want instancing too… The problem is that you
basically have to draw all of your meshes that use one type of geometry
at once, so I suppose by default the two cannot be combined.
Is there a way to make this work?
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Not in general. You could have a situation where the correct sort order
would alternate meshes or materials so that you can’t both batch similar
things together and keep them in the correct order.
BTW, sorting isn’t usually considered to be “order-independent
transparency” - the reason you sort is because the blending is
order-dependent and you’re explicitly putting things in the correct
To use batching / instancing with transparency you’d probably have to
use a “true” OIT method, such as depth peeling, A-buffer, adaptive
transparency, stochastic transparency, etc.
Ah okay, thanks :)