[Tung Ling Leung]

Hi Everyone,

I'm using V2 now. I have a problem of my image map. Anyone can give me any advise to solve my problem? My rendering was good from the begining, after I changing my material editor my rendering become like the picture below.



Thanks!
Tony Leung

[Tung Ling Leung]

Here is the rendering.

Thanks!
Tony

[JDHill]

It looks like I'm seeing individual image pixels on the ring's outer surface -- how is it texture mapped?

[Tung Ling Leung]

Hi JD
The image is ideal for brush or emery finish. My file is in png format 1200x1200 set in 72pixel/in from PS. From my first couple of my renderings was fine, but somehow all of my my renderings become single pixel like this and all of my other materials has same problem now.
Thanks!
Tony

[zdeno]

it looks like UV map problem, check if uv channel is the same as in earlier scenes.
is mapping look correct in studio viewport?

BTW this kind of reflection shoud be mapped on anisotropy slot not bump. but mayby in V2 it looks better than in 1.7.1 version.

[polynurb]

tony, check in the rhino object properties, under texture mapping which channel you are using for the ring.

if there is no "additional" channel (use multiple projectors unchecked), you are using 0, which would be technically ok, as the material uses 0 as well.

if you did not setup any projector (planar, box, etc.) you are using nurbs UV to apply the texture, aka surface mapping

now there can be several reasons for a bad channel 0 / surface mapping ...

is the ring a polysurface? ... if so try to extract the outer part, and run "shrink surface" and/or "improve"

alternatively leave as polysurface and run "unpack textures", which will restore the mapping of the individual subsurfaces as they were before joining.

rhino, due to its nature as a nurbs modeler, is tricky when it comes to mapping, and i can strongly recommend to read all the info in the help document of rhino concerning mapping... especially "packing & unpacking" of textures is very tricky....

[polynurb]

if there is no "additional" channel (use multiple projectors unchecked), you are using 0, which would be technically ok, as the material uses 0 as well.

... i was thinking of rhino5 beta here.. sorry ... if you are using rhino 4, under texture mapping in properties, you check "show advanced ui" instead, where you can add new channels with different projectors (box,planar,etc.)

[Tung Ling Leung]

Hi Ploynurb and Zdeno

Thanks for your advise! I will try to solve the problem by using your suggestions!

Tony

[Tung Ling Leung]

Hi Ploynurb,

Thanks very much! I did solve the problem!
Tony