hezproject problem

mxdirector · December 30, 2009, 6:27pm

hello , i have done the following tutorial and many others like it
http://www.pixologic.com/docs/index.php/Image_Plane

the problem is that everytime i paint only a certain area gets painted and i end up with the image seen below
http://img37.imageshack.us/i/image1px.jpg/

thats the demo head with a flat shade, im just using some random image i found on the net.
i did not purposely paint that square, but that is the only are that will paint. on another model it will only paint the circle around the eye.

why is this happening?

system · December 30, 2009, 7:11pm

According to this: http://www.zbrushcentral.com/showthread.php?t=78357
The 3.5 Zproject transpose functionality doesn’t appear to be working anymore.

mxdirector · December 31, 2009, 3:21am

i appreciate the response. sadly what i am doing has nothing to do with transposing.
zbrush will only allow me to paint that small area, i have not masked anything.

system · December 31, 2009, 1:31pm

Actually it does since you said you were following the image plane tutorial to project details from an image onto your model. In order to project from an image, you have to use transpose tool. If you just want to polypaint, follow this tutorial instead. http://www.pixologic.com/docs/index.php/Paint_It!

system · December 31, 2009, 1:40pm

I was able to duplicate what you posted by using zproject brush to paint. Don’t use zproject to paint, just use standard brush or other type of brush and turn off zadd.

Good luck, mxdirector.

mxdirector · December 31, 2009, 5:02pm

my problem is specific to project a photo on to a mesh. polypainting works absolutely fine.
but to project a image on some of my models (i stress that it only happens with some of my models not. one of the models included is the demo head) only a single area actually gets painted on.

the image i posted eariler is a model i painted. i am trying to paint the back ground image on to the model. i stress, i have tried painting that whole thing, but only that square area will get painted. there is no mask

system · December 31, 2009, 6:41pm

Before you paint, covert your demohead mesh into polymesh by pressing the make polymesh3d button under the tool menu. That should get you going.

You should check this thread out just in case, http://www.zbrushcentral.com/showthread.php?t=76323.

Bingo_Jackson:

It also seems to work fine if you actually append a plane with an image texture applied directly into the tool, and Zproject from that, but obviously, that is not as convenient.
JUst to sum up the issue, as there has been a lot of chatter, the issue I'm finding is this:

In 3.1 , If you try to Zproject color from a background image imported directly into the canvas onto a tool with subtools, with all subtools visible, only some portions of the mesh may be paintable, as if portions were sticking outside some unseen bounding box. This is evident in both the demo soldier and demo head tools to various degrees, when painting on the body and head subtools respectively.

The Problem is solved by simply hiding all the other subtools, and you can Zproject_Paint as normal.

In 3.5, the Tools exhibit the exact same projection limitations with all subtools visible, but in 3.5 hiding the other subtools makes the entire mesh unpaintable. No color is applied.

The only work around appears to be cloning the subtool in question, Zproject-painting it as desired, and re-appending it to the tool, unless someone who knows what’s going on tells us the trick to making this work now.

mxdirector · January 1, 2010, 3:58pm

well that solved it.
i knew it would be something simple i missed.

thank you for all your help, and happy new year to you.