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For a tree leafs for example? The way some light would be transmitted through the leafs wile keeping the diffuse property on the lit side .

sure it is, create a diffuse material node, see how there is a "empty/circle" tick in the node, connect a rgb to that tick, there you go, a translucent material with an RGB controler. You can do the same with a map instead of the rgb for the leaf.

I still haven't mastered this translucency part of the diffuse shader (there's nothing on it in the manual - ti's not even mentioned as a diffuse shader parameter ).

Why a RGB texture instead of uniform float? How is the RGB (or better, HSV) value mapped to translucency? Saturation probably controls the intensity, what are value & hue for?

If someone could kindly explain this, It would be nice

with a float it works the same but with a color you control "the other side" color as well. Like a leaf map in the diffuse an a light green for the tranlucent. I use it for cloths and it looks good, sometimes I add some opacity but it depends

kubo wrote:with a float it works the same but with a color you control "the other side" color as well. Like a leaf map in the diffuse an a light green for the tranlucent. I use it for cloths and it looks good, sometimes I add some opacity but it depends

Thanks! I figured it might be something to do with coloring the translucency.

When re-visioning the manual, I suggest that more detailed info is included regarding the material parameters that take a texture as input. Some of them are intuitive, like diffuse, but some aren't. It would benefit Octane if the users had a better understanding how the color tuple is mapped to some parameter (preferably explained in HSV space - which is more intuitive than RGB). This is a professional tool, and technical stuff should not be omitted in favor of simplicity or "not scaring people away".

kubo wrote:sure it is, create a diffuse material node, see how there is a "empty/circle" tick in the node, connect a rgb to that tick, there you go, a translucent material with an RGB controler. You can do the same with a map instead of the rgb for the leaf.

Thanks for the tip but I have never been able to reach a good appearance of a leaf ( or similar thing) with that circle on diffuse material because the translucency is not affected by a shadows that may be cast on a front side of a surface. For example if you need to do a curtain on a window and want to see a shadows from a frame on the curtain. Am I missing something?

Hi. There's a thread covering translucency in octane.

http://www.refractivesoftware.com/forum ... f=6&t=1622

When mix material was introduced in octane things just got better because one could make mix between glossy and diffuse material with transmission.

Cheers,
n1k