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Rendering plants with opacity maps

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Message 1 of 4
hl24a3
250 Views, 3 Replies

Rendering plants with opacity maps

How do you people go around rendering a large amount of plants?

I have a cornfield it's just one object but it's scattered with FP there's hundreds of it, and it has opacity maps on leaves. I did remove the filtering on the opacity bitmap and lowered the blur to minimum BUT it still takes painfully long to render.

Arnold's' AA settings are pretty low not higher than 244 on most passes and much lower than that on some.

Is a real geometry the only solution or there is some kind of a trick to do it?

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Message 2 of 4
madsd
in reply to: hl24a3

Just use "thin wall" and up the SSS to get translucency, dont use opacity, you ONLY use opacity to control the Alpha cutout border so a leaf becomes a leaf and not a rectangle with a leaf on.

I have rendered a ton of vegetation, no problems, maybe your light kit is not ideal.
Send over a plant, I have FP too, so I can render it np.

Message 3 of 4
lee_griggs
in reply to: hl24a3

Camera (AA): 244?

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 4 of 4
hl24a3
in reply to: hl24a3


Mads Drøschler> I don't use translucency in my scene, just cutouts

Lee Griggs> sorry I meant min/max values for diff and other ones. My lowered new settings helped a little but just tiny bit.



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