how does zdepth work?

[remon_v]

Hey guys, I would like to render a zdepth map.... but I don't get the result I am hoping for.
So my question is how do I need to set it up? How do I determine the z-depth black and white? And z-depth clamp on or off?

Thnx in advance

remon_v

[thomthom]

Re: how does zdepth work?

If I remember correctly you must specify the distance from the camera from where you want white fading into black. And you most likely need to enter the distance in inches.

[remon_v]

Re: how does zdepth work?

thnx if I remember correctly there was a ruby to measure the camera distance to object? anyone knows which ruby this is?

edit: got it: CameraDistance.rb

[Zaza_cg]

Re: how does zdepth work?

I've tried using z-depth before, following the tutorial available, but all I get is a full black image or a full white image :/

[fpedrogo]

Re: how does zdepth work?

Hi
Basically, you need two distances (White and Black), one of the camera to the nearest object you want in the Z-Depth and others from the camera to the farthest object you want in the z-depth. You will get a black and white gradient between those defined distance. What distance should be white or black, doesn't matter you can always invert the effect in photoshop. The distances should be in inches.

Best

[Justin Thorup]

Re: how does zdepth work?

Check out this thread. A script was posted and it works very well. Works for vfr but I don't know about sketchup.

http://forum.asgvis.com/index.php?topic=5630.0

[fpedrogo]

Re: how does zdepth work?

Check out this thread. A script was posted and it works very well. Works for vfr but I don't know about sketchup.

http://forum.asgvis.com/index.php?topic=5630.0

This is a good script, but unfortunately only work for Rhino.

[remon_v]

Re: how does zdepth work?

It works good... what I did is use a script called 'Connect Page Camera's' (cameralines.rb) this script will connect your camera's in your scene by lines. From here it's easy to measure from a vertice to the nearest and farthest point. And these vaue's must be in inches.

[thomthom]

Re: how does zdepth work?

My Guide Tools plugin let you add a CPoint to the camera eye. I use that to measure distances for my cameras.

[fpedrogo]

Re: how does zdepth work?

My Guide Tools plugin let you add a CPoint to the camera eye. I use that to measure distances for my cameras

Where I can find this plugin?

Best

[mjm223]

Re: how does zdepth work?

I've tried using z-depth before, following the tutorial available, but all I get is a full black image or a full white image :/

Try checking the "Clamp Z-Depth" box. I had the same issue, but when I checked that box then it started working for me.

[thomthom]

Re: how does zdepth work?

My Guide Tools plugin let you add a CPoint to the camera eye. I use that to measure distances for my cameras

Where I can find this plugin?

Best

http://forums.sketchucation.com/view...=30506#p267835

I actually have an unreleased plugin that draws the camera frustum as faces - nice to get a visual of the camera setup. I'll upload it shortly.

[fpedrogo]

Re: how does zdepth work?

http://forums.sketchucation.com/view...=30506#p267835

I actually have an unreleased plugin that draws the camera frustum as faces - nice to get a visual of the camera setup. I'll upload it shortly.

Thank you very much Thomthom

[Justin Thorup]

Re: how does zdepth work?

This video also shows how to do it manually with measuring lines in vfr, but I'm sure it's similar to what you may need.

http://www.youtube.com/watch?v=XQr8b8OSQlU