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From: SharkD
Subject: New version screen.inc
Date: 13 Nov 2009 03:07:54
Message: <4afccd8a$1@news.povray.org>
I modified screen.inc so that it works with orthographic cameras as 
well. Simply add "yes" or "no" as a new parameter when calling the 
"Set_Camera" macro.

There are some glitches, however. In the demo scene, setting the 
"scaling" parameter to low values (i.e. below 1) causes artifacts when 
orthographic mode is turned on. Also, while the crosshairs are visible, 
the pigment/texture looks a lot different than when using a 
non-orthographic camera.

Anyone have any idea how to fix these?

Thanks.

Mike


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From: SharkD
Subject: Re: New version screen.inc
Date: 13 Nov 2009 03:08:58
Message: <4afccdca$1@news.povray.org>
On 11/12/2009 10:07 PM, SharkD wrote:
> I modified screen.inc so that it works with orthographic cameras as
> well. Simply add "yes" or "no" as a new parameter when calling the
> "Set_Camera" macro.
>
> There are some glitches, however. In the demo scene, setting the
> "scaling" parameter to low values (i.e. below 1) causes artifacts when
> orthographic mode is turned on. Also, while the crosshairs are visible,
> the pigment/texture looks a lot different than when using a
> non-orthographic camera.
>
> Anyone have any idea how to fix these?
>
> Thanks.
>
> Mike

Forgot to attach the file.

Mike


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Attachments:
Download 'screen.inc.txt' (6 KB)

From: SharkD
Subject: Re: New version screen.inc
Date: 13 Nov 2009 04:53:11
Message: <4afce637$1@news.povray.org>
On 11/12/2009 10:08 PM, SharkD wrote:
> Forgot to attach the file.
>
> Mike

Slightly tweaked version. Also, the demo scene which I forgot to add 
earlier.

Mike


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Attachments:
Download 'screen.inc.txt' (6 KB)
Download 'screen.pov.txt' (6 KB)

From: SharkD
Subject: Re: New version screen.inc
Date: 16 Nov 2009 03:10:46
Message: <4b00c2b6$1@news.povray.org>
Update:

Includes the changes I made in my last post to enable the script to work 
with orthographic cameras. Also includes a new macro called 
"Get_Screen_XY" to return the 2D screen location of a set of 3D coordinates.

The lighting/material issues WRT the crosshairs and orthographic cameras 
remains unresolved.

Mike


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Attachments:
Download 'screen.pov.txt' (7 KB)
Download 'screen.inc.txt' (6 KB)

From: Captain Jack
Subject: Re: New version screen.inc
Date: 16 Nov 2009 14:12:01
Message: <4b015db1$1@news.povray.org>
"SharkD" <mikh2161 [at] gmailcom> wrote in message 
news:4b00c2b6$1@news.povray.org...
> Update:
>
> Includes the changes I made in my last post to enable the script to work
> with orthographic cameras. Also includes a new macro called
> "Get_Screen_XY" to return the 2D screen location of a set of 3D 
> coordinates.
>
> The lighting/material issues WRT the crosshairs and orthographic cameras
> remains unresolved.
>
> Mike

Very cool, indeed... looking forward to trying it out. :D Thanks for the 
work.


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From: SharkD
Subject: Re: New version screen.inc
Date: 16 Nov 2009 21:22:03
Message: <4b01c27b$1@news.povray.org>
On 11/16/2009 9:13 AM, Captain Jack wrote:
> Very cool, indeed... looking forward to trying it out. :D Thanks for the
> work.

I know of one bug already. I've already fixed it and will upload it 
soon. Let me know if you notice any others.

Mike


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From: Captain Jack
Subject: Re: New version screen.inc
Date: 16 Nov 2009 21:31:49
Message: <4b01c4c5$1@news.povray.org>
"SharkD" <mikh2161 [at] gmailcom> wrote in message 
news:4b01c27b$1@news.povray.org...
> On 11/16/2009 9:13 AM, Captain Jack wrote:
>> Very cool, indeed... looking forward to trying it out. :D Thanks for the
>> work.
>
> I know of one bug already. I've already fixed it and will upload it soon. 
> Let me know if you notice any others.
>
> Mike

I'm setting up an animation now... my goal is to create a text file that 
lists, for each frame, the pixel position of an object I'm tracking in the 
scene. I'll try to get it  tested by tomorrow.

--
Jack


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From: SharkD
Subject: Re: New version screen.inc
Date: 17 Nov 2009 12:53:30
Message: <4b029cca$1@news.povray.org>
OK, here's the latest version. I added support for specifying the camera 
direction, right and up vectors directly. Use the macro "Set_Camera_Alt" 
instead of "Set_Camera" if you want this. Please report any bugs you may 
encounter. I tested versus a series of scenes including ones with 
perspective projection, orthographic projection and even oblique 
projection. I also tested different aspect ratios and output sizes. I 
may have missed something however.

Mike


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Attachments:
Download 'screen.inc.txt' (8 KB)

From: SharkD
Subject: Re: New version screen.inc
Date: 17 Nov 2009 13:28:52
Message: <4b02a514$1@news.povray.org>
On 11/17/2009 7:53 AM, SharkD wrote:
> OK, here's the latest version. I added support for specifying the camera
> direction, right and up vectors directly. Use the macro "Set_Camera_Alt"
> instead of "Set_Camera" if you want this. Please report any bugs you may
> encounter. I tested versus a series of scenes including ones with
> perspective projection, orthographic projection and even oblique
> projection. I also tested different aspect ratios and output sizes. I
> may have missed something however.
>
> Mike


Ooops. had some values reversed.

Mike


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Attachments:
Download 'screen.inc.txt' (8 KB)

From: Captain Jack
Subject: Re: New version screen.inc
Date: 17 Nov 2009 19:40:46
Message: <4b02fc3e@news.povray.org>
"SharkD" <mikh2161 [at] gmailcom> wrote in message 
news:4b02a514$1@news.povray.org...
> On 11/17/2009 7:53 AM, SharkD wrote:
>> OK, here's the latest version. I added support for specifying the camera
>> direction, right and up vectors directly. Use the macro "Set_Camera_Alt"
>
> Mike
>

I'm rendering an animation now where I'm tracking part of the object using 
the Get_Screen_XY function to build a file of screen coordinates. Once I get 
that run, I'll try importing the data into another program and comping the 
results. So far, it seems to be working fine and I haven't gotten any 
errors; looks great, Mike.

--
Jack


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