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I have recently read a little about ZDepth and wanted to try it. I setup a few columns at different distances away from the center of the image (sing the top view). I then go to render elements add VRayzdepth and render.
2 questions please :
A - It renders both the final frame and the zdepth frame (is there anyway to prevent the final frame from being rendered? I use Max 9)
B - The zdepth frame renders all black - no depth (why could that be?)
read 629 times
2/21/2009 11:17:17 PM (last edit: 2/21/2009 11:17:17 PM)
Did you set a min/max depth?
read 619 times
2/21/2009 11:34:34 PM (last edit: 2/21/2009 11:34:34 PM)
I left at the default min=0, max=500.
But what does that actually mean ? Minimum and maximum is measured from where to where ? How do I find the limits of my scene ?
read 605 times
2/22/2009 12:56:46 AM (last edit: 2/22/2009 12:56:46 AM)
use a target camera, then go to ortho/perspective viewport and adjust the target distance (in the modify panel) so it reaches the closest thing to the camera in your scene (this distance value will be your minimum zdepth value i.e. white on the zdepth pass) then increase the target distance value until the camera target reaches your farthest thing in your scene, the distance value ill now be the max value for the zdepth pass i.e. black)
REMEMBER TO TURN ON FILTERING FOR THE ZDEPTH PASS OTHERWISE IT WONT COME OUT ANTI-ALIASED.
to answer your questions...
A. No. but if you don't want to render the whole thing again, remove all lights, turn off any advanced lighting i.e. final gather, give everything a 100% self illuminated black material and max will speed through the render and spit out the zdepth in no time.
B. That's because there was nothing in your scene between 0 and 500 units from the camera, therefore everything was further than your maximum value and therefore black
read 599 times
2/22/2009 1:40:04 AM (last edit: 2/22/2009 3:11:08 AM)
AWESOME !! that together with a previous post on how to achieve the DOF effect using photoshop has allowed me to create the exact effect that I was looking for - thanks very, very much guys !! Appreciate it !
read 586 times
2/22/2009 3:08:54 AM (last edit: 2/22/2009 3:08:54 AM)
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