render camera field of view in 3ds max

ndbeser · 22-06-2010, 06:23 PM

After creating a camera, I can see the field of view by activating the show cone option on the properties. I would like to render the camera Field of View the final image (showing the overlapping cameras in the system). I have not been able to find an option that would tell the renderprocess to draw the camera Cone. Is there an option that would support that? Can anyone suggest a method of creating the camera field of view? I can kludge it by creating pyramids that match the camera FOV, and then make the pyramids transparent. I prefer to control the cone in the properties option.

Nick Beser
Johns Hopkins University

Nukie · 22-06-2010, 10:56 PM

So, you want the cone (the blue lines) to be rendered? Why do you want to do that?

As far as I know this can not be done, since the cone is only there for correct camera placement.

ndbeser · 23-06-2010, 02:12 AM

I am validating a stereo image processing setup, and need to show the overlap of the two cameras. While I can show it with a screen capture, I prefer to do a render. I would also like to show the occulusion of field of view due to other structure.

Nick

The Prime · 23-06-2010, 08:42 AM

Hi ndbeser,
Your best plan of action would be to create the fov using geometry in max, and give it some sort of semi transparent material. Something too precise and fiddly will just be painful, and by the sounds of this it is for a project, so clarity is more important than precision in presentation.

There is also a checkbox in the camera settings to show the fov, though this may not be what you're after.

ndbeser · 23-06-2010, 12:34 PM

Sounds about right. I used a pyramid model, fit to the camera FOV, and using the material editor created a transparent color. It is a royal pain to fit it to the camera model. I am curious how other people do effects like this. I know if I were simulating light in a fog, I would show a cone of translucent material, but there should be a better way. I wanted to also show the loss of efficiency due to poor camera placement (structure blocks the FOV. I want to show the effect of occusion as shadow on a scene. Maybe that is a potential solution.

Nick

22-06-2010, 06:23 PM	#1
ndbeser Registered User Join Date: Jun 2010 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	render camera field of view in 3ds max After creating a camera, I can see the field of view by activating the show cone option on the properties. I would like to render the camera Field of View the final image (showing the overlapping cameras in the system). I have not been able to find an option that would tell the renderprocess to draw the camera Cone. Is there an option that would support that? Can anyone suggest a method of creating the camera field of view? I can kludge it by creating pyramids that match the camera FOV, and then make the pyramids transparent. I prefer to control the cone in the properties option. Nick Beser Johns Hopkins University

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22-06-2010, 10:56 PM	#2
Nukie Registered User Join Date: Aug 2005 Location: Netherlands Posts: 1,644 Thanks: 7 Thanked 24 Times in 23 Posts Awards Showcase Total Awards: 2	So, you want the cone (the blue lines) to be rendered? Why do you want to do that? As far as I know this can not be done, since the cone is only there for correct camera placement.

23-06-2010, 02:12 AM	#3
ndbeser Registered User Join Date: Jun 2010 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	I am validating a stereo image processing setup, and need to show the overlap of the two cameras. While I can show it with a screen capture, I prefer to do a render. I would also like to show the occulusion of field of view due to other structure. Nick

23-06-2010, 08:42 AM	#4
The Prime Registered Abuser Join Date: Apr 2010 Location: Staffordshire, UK Posts: 586 Thanks: 15 Thanked 17 Times in 17 Posts Awards Showcase Total Awards: 1	Hi ndbeser, Your best plan of action would be to create the fov using geometry in max, and give it some sort of semi transparent material. Something too precise and fiddly will just be painful, and by the sounds of this it is for a project, so clarity is more important than precision in presentation. There is also a checkbox in the camera settings to show the fov, though this may not be what you're after.

23-06-2010, 12:34 PM	#5
ndbeser Registered User Join Date: Jun 2010 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	Sounds about right. I used a pyramid model, fit to the camera FOV, and using the material editor created a transparent color. It is a royal pain to fit it to the camera model. I am curious how other people do effects like this. I know if I were simulating light in a fog, I would show a cone of translucent material, but there should be a better way. I wanted to also show the loss of efficiency due to poor camera placement (structure blocks the FOV. I want to show the effect of occusion as shadow on a scene. Maybe that is a potential solution. Nick

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