ZBrushCentral

Vray Displacement Seams (((

ZBrush Usage Questions
#1

Hey guys! already tried 4096x4096 resolution…no way (( 3ds max 2009 even not recognize him…
How can i vanish those seams?? imported real low-res mesh…modifier VrayDisp…Rendered in Vray 1.5 SP2. AUVTiles…here’s the screenshot.

[[img]http://img407.imageshack.us/img407/9297/seamshu8.th.jpg[/img]](http://img407.imageshack.us/my.php?image=seamshu8.jpg)

Advise pls … cant go on without this knowledge :cry:

Luck!

#2

Aurick, guys! please ADVISE!! ive read all the threads bout the displacement problems, but nothing similar to mine :cry: … cant progress myself without this tip/trick :slight_smile:

i made all the thing to avoid any trouble with disp concerning these steps:


  • Texture Filtering. Things like mip-mapping and texture antialiasing when applied to a Tiles displacement map will almost always result in artifacts. Make sure not to use them.
  • Map Offset. Not all programs register the 0,0 point on the UV’s exactly the same. Tiles mapping is a precision mapping method, and so is very sensitive to any offsets. This is only exaggerated with displacement maps! You may need to offset the map slightly in the U and/or V direction. You can probably do this in Max, but ZBrush also has adjustment features found in the Tool>Texture menu. Once you know the right offsets for your engine, you can use them every time. In fact, you can even create a macro for one-click adjusting.
  • Poor UV Calculation. A common mistake when applying AUVTiles or GUVTiles mapping is to just click the button. If no texture is applied to the model, ZBrush will calculate the map based on a 1024 size. If you then export a map of a different size, the mapping will no longer be as high quality as it should be. Remember: Tiles are precision mapping methods. So before assigning either of the Tiles types, always apply a blank texture to your model that is the same size as the map you’ll be creating. Then press the AUVTiles or GUVTiles button. This ensures the optimal mapping for your texture size.
BTW newbies make a copy of that text for ur ‘knowledge base’ :wink:

tried many settings with MD3…alas…same result

Share your ideas…knowledge…experience pls :idea:

Luck!

#3

I don’t know, but try to load it in with a linear gamma(in the open window dialog). Choose the gamma 1.0. Both bump, normal bump and displ must be loaded in as 1.0 gama images. I had seams with normal bump until I realised it must be loaded not as 2.2 gamma image.