Anisotropy

[treddie]

Hi all. Been ages since I've been back. Glad to see that 3.0 is here!

One question. It still appears that there is no support for anisotropy, and was wondering if Otoy is considering including this function or not, in the future?

[whersmy]

Was just busy with this, what kind of anisotrophy are you looking for?

This is a simple bump with multiply tex and gradient

[treddie]

Thanks for replying, whersmy.

That is a great map, by the way. But where would you plug it in Octane standalone?

[itsallgoode9]

Hi all. Been ages since I've been back. Glad to see that 3.0 is here!

One question. It still appears that there is no support for anisotropy, and was wondering if Otoy is considering including this function or not, in the future?

right now you have to create it yourself. not sure you you know how it is create but you make lots of parallel lines of micro bumps. think, grooves on a record. The map treddi gave you won't really do the job for anisotropy that reacts with the lighting correctly.

[whersmy]

That is correct, there are several ways to simulate it, scene scale and UV`s are important

[treddie]

I figured that was the case. I need a real anisotropy function, in that I have a bunch of lights on a glossy surface and that surface has to reflect the lights in only one direction so that they look like parallel streaks fading off after about 5 inches. If I kludge with an image, there would have to be a custom image for each view.

[whersmy]

Try out the orbx and see if it solves what your problem is.
Is the anisotropy needed for a flat surface?

[treddie]

Why would the orbx work? Isn't that just the Octane file format?

[whersmy]

Indeed, so you can copy and try out the material sample in your own project or see the breakdown of it.

[treddie]

But it is still an imported image kludge, if I'm following you. I think it will look "illustrated" or a bad texture, simply because it is not based on a physically accurate anisotropy. The only solution would seem to be to build a memory-hogging micro texture, bump or normal map. The anisotropy I need is not a radial texture but a linear one...all the reflections are parallel to each other.