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Grab Doc creates Alpha with gradient?

ZBrush Usage Questions
#1

Hello,

I have encountered a problem with grab doc. I have imported an obj. to use grab doc and make an alpha. But as you can see it has a gradient (In this case I want a flat colour). Can someone explain this :

https://scontent-ams3-1.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/11826025_1772741719619299_1345924013102595081_n.jpg?oh=76a15a6e502501c2c44c25d23b9176ee&oe=563EA786

https://scontent-ams3-1.xx.fbcdn.net/hphotos-xta1/v/t1.0-9/11796415_1772741716285966_5892501344450008130_n.jpg?oh=41a036ec5261c2394f323ec07e6ce7bc&oe=56460910

I have tried grab doc as frontal as I could!

thanks in advance!
Laurens

#2

The most likely explanation is that your model is not flat on to the screen plane. When rotating your model you can hold Shift to snap the view.