Anisotropic rotation problem 1.5Sp2

V-Ray V-Ray for 3ds Max Issues
1

Hello Vlado,

I’m using Anisotropic rotation and here is the render’s result (Annoying line):

Here is the anisotropic rotation map (No Filter):

Here is the shader diffuse map (Pyramidal Filter ) :

Here is the shader setup :

My render setup are Adaptive DMC 1/100 - ctrl tresh : 0,005 and AA filter Quadratic.

With Pyramidal filter or Summed area into aniso rot. map… no difference… even worse !
Same problem with VrayBmpFilter, but the line is smaller.

The problem is due to bitmap interpolation (or something close) RGB value from 255 to 0 are not correct, I try with 16Bits and 32 bits and no difference…
From 4K aniso rot. map to 10K same problem !!!

But I haven’t got a problem with max circular ramp… (Mathematical ramp, no bitmap)

Please help !!!

I know… my english s**ks… I hope I’m precise enough !!!

Best regards…

Edit :

Here you can find a simple scene with the problem…

http://www.chaosgroup.com/forums/vbulletin/showpost.php?p=378523&postcount=7

2

Hello Vlado I can give you the maps if you want to test…

Tell me…

Best regards…

3

What happens, when you turn off bump ?

4

Same problem… No bump but line still there…

The problem is from the aniso rot map…

Best regards.

5

Can you then assemble the scene, so I can look at it ? I have issues with aniso ward shader too.

6

Ok, I’ve got some urgent work to do… then I setup a simple scene with the problem…

Best regards..

7

Hello Guys,

I’ve just made this simple scene (Max2008 64Bits + Vray 1.5Sp2)

here are some tests :

Here is the scene (Render Region because too long for test :slight_smile: ):

http://www.digitalsoap.ch/le-truc/Vray/TestBouchonet\_VCH.rar

Now everybody can play with me… :wink:

Best regards.

8

Max 9 x64 bro :slight_smile:

9

How did you create those maps? If you zoom in close, you will see there is a 1-pixel wide vertical grey line between the black and white portions of the radial gradient. This line is causing your problems. The transition should be from pure black to pure white without medium levels.

Best regards,
Vlado

10

Ok,

but how to achieve that…

With a 10k map and photoshop or any bitmap software… any idea… I can’ t make a 50K map just to have a perfect black and white…

I use AFX for making the main aniso map and the diffuse one. How to avoid bitmap effects…

I’ll try a 10K map with a ramp into afx and do a 32Bits render and I tell you…

Best regards.

11

The 3ds Max Ramp texture does it… so you can render this to a file and then use it as a base to replicate it.

Best regards,
Vlado

12

Ok i’ll try and I tell you…

Thanks !

Best regards…

13

ps your english is great.