Distance between Cam lens and object?

archonforest · January 20, 2015, 09:13:30 AM

Possible to measure the distance between the lens and the object somehow? I am struggling again to figure out the focus distance. Even If I turn on the Dof preview it goes bananas sometimes. Like whatever number I set the preview stays on the same place? Like 1 m or 500m and the focus line(coloring) not moving.
Best would be to have an option where I can say "show distance between camera and this object".

Dune · January 20, 2015, 11:08:26 AM

If you hover above the scene (object and camera) in the preview you can use the measure tool for just that.

choronr · January 20, 2015, 11:15:25 AM

Great idea, never have thought of that. This would apply for the 'Distance shader' as well?

archonforest · January 20, 2015, 11:28:27 AM

Quote from: Dune on January 20, 2015, 11:08:26 AM
If you hover above the scene (object and camera) in the preview you can use the measure tool for just that.

Thx. I tried this idea before and the I got some raw data that was somewhat useful but it was pretty raw.
Nevertheless sometimes when u really zoomed in onto something it would be good to have some proper measure tool that can give the exact measure...

Upon Infinity · January 20, 2015, 02:11:28 PM

View Menu => 3D Preview location and then roll over your object. Best method.

Edit: Oh you mean exact to within the object itself. It may not be possible.

archonforest · January 20, 2015, 02:44:50 PM

Quote from: Upon Infinity on January 20, 2015, 02:11:28 PM
View Menu => 3D Preview location and then roll over your object. Best method.

Edit: Oh you mean exact to within the object itself. It may not be possible.

Yeah could be a right click menu...like distant between..and u choose either 2 object or the cam or an object...etc

j meyer · January 21, 2015, 12:06:06 PM

Distance between camera and object-what,surface,pivot point or what?
It's not that easy most likely.Let's say you have a helicopter,how would you
make TG know which point of the object is your point of interest?
Even harder than an autofocus feature on a real camera I'd say.
But of course I may be wrong.

archonforest · January 21, 2015, 12:48:56 PM

Quote from: j meyer on January 21, 2015, 12:06:06 PM
Distance between camera and object-what,surface,pivot point or what?
It's not that easy most likely.Let's say you have a helicopter,how would you
make TG know which point of the object is your point of interest?
Even harder than an autofocus feature on a real camera I'd say.
But of course I may be wrong.

I could use the middle of the object for sure as that is at least a precise distant. Like I want to focus on a rock for example. If I know that the middle of the rock is 1m from the lens then I am almost done. Only little adjustment would be needed.

j meyer · January 21, 2015, 01:09:12 PM

You can read out the coordinates for the pivot point of the object and you
have the camera coordinates where is the problem then?

archonforest · January 21, 2015, 01:31:43 PM

Quote from: j meyer on January 21, 2015, 01:09:12 PM
You can read out the coordinates for the pivot point of the object and you
have the camera coordinates where is the problem then?

Sounds like a great idea! Testing it now...

archonforest · January 21, 2015, 01:59:53 PM

So I did what u said and nothing...again and nothing...

...then I realized that I forgot to turn the Dof on under the render tab...

So it works man! Thx a bunch.

bobbystahr · January 22, 2015, 12:32:44 PM

Quote from: archonforest on January 21, 2015, 01:59:53 PM
So I did what u said and nothing...again and nothing...

...then I realized that I forgot to turn the Dof on under the render tab...

So it works man! Thx a bunch.

LOL...that's happened to me, well a variation anyway...