OTOY Forums

Hello All,

Please I'd like some help regarding transparency maps.. A few years ago I read somewhere that Octane is more efficient (speed wise) when it comes to Geometry rendering rather than transparency maps.. talking leaves, Hair Cards etc...is that still the case?

So is it better to still use geometry instead of planes with and Alpha map applied to them? what are the downsides?

Nildo

Hello Nildoe,
yes, it is correct, for example, istancing thousands of tree with alpha leaves (opacity slot), It is recommended use geometry.
Regards
Paride

Paride what if its one HAIR OBJECT with several card elements that use the same opacity map or 4 different ones? would that still be considered the same as instanced leaves like in your example?

hi nildoe,
it's not depends on instance, Octane loves geometry, it will be so fast rendering geometry instead of works on opacity (and the final render look better).
with lots and lots of opacity map in the scene, you could have some issue.
Regards
Paride

i see.. damn got it .

thanks Paride