Anisiotropic direction map correct?

[irwit]

Hi all

Firstly I have made a classic spun metal here, nothing special, with the anisiotropic direction map looking like this.



Now the issue is this.

When I have this image created as a gradient in max, I get a perfect reflection, however when I have this image created from a bitmap, I get a seam in the highlight where the black and white meet.

I have tried turning off filtering, 32 bit, high res etc however it just doesn't want to work without a seam. (image on left is bitmap anis direction map, image on right is gradient ramp. Seam is pretty obvious in top left. )




Is there anyway to get this to work correctly ?

[tashko.zashev]

Hi,

Thank you for sharing your results.
Actually the image

anis.jpg

doesnt use full white/black color at the border. Try to add color correction map before it with higher Contrast value (10-20 should works).
Then you may also need to set the Filtering to None.

If those steps don't work for you please post the scene file to investigate further.

[irwit]

Ah

Thanks for that Tashko. Seems to be working great now.

Another issue I had which have solved now is if you are making the gradients in photoshop, make sure you set smoothing to 0 in the gradient tool. I think this is why I wasn't getting true white and black in the image.

Anyway, thanks again for the help, much appreciated!

[tashko.zashev]

Another issue I had which have solved now is if you are making the gradients in photoshop, make sure you set smoothing to 0 in the gradient tool.

Good to know, thanks.