[Bf-committers] Map Camera Coordinates to UV layer patch

Sat Nov 14 23:19:07 CET 2009

off the top of my head, simply texture paint the stretched areas
with the remove alpha brush. That will make the stretched tex
transparent, and allow the second to show through.

but surely it could not be that simple :)

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Sent by Roger Wickes for intended recipient. If you are not the intended recipient, please delete this message and contact Mr. Wickes immediately.

________________________________
From: Christopher Cherrett <stuff at trackingsolutions.ca>
To: bf-blender developers <bf-committers at blender.org>
Sent: Sat, November 14, 2009 4:01:55 PM
Subject: Re: [Bf-committers] Map Camera Coordinates to UV layer patch

In maya you can camera project and then any areas that have a stretched 
texture you can project with another camera to patch in the areas with 
blender alpha masks around the edges. I have tried and tried to get 
blender to do the same thing with no success. I bought the gnomon Camper 
Projection Techniques DVD:

http://www.thegnomonworkshop.com/store/product/81/Camera-Projection-Techniques-in-Maya

In that video he projected the matte painting onto the rocks and then 
projected from other angles onto the stretched rock with rock texture 
and was able to control the blend of the new camera onto the old.

That sure would be nice to do in blender but as of this point the best I 
can find is to project and bake to custom uvs so I can paint over the 
UVs later.

Can you think of a way to make this work the way maya does? or better?! :)

-------- Original Message  --------
Subject: Re: [Bf-committers] Map Camera Coordinates to UV layer patch
From: Roger Wickes <rogerwickes at yahoo.com>
To: bf-blender developers <bf-committers at blender.org>
Date: 11/14/09 11:27
> i don't know. I do know that he was blown away by what Blender could do. 
> Evidently he was looking for a very small camera truck/pan/raise action with 
> something on that podium, and I was able to show him how he could get 
> almost a total drive-by. I never got any paid consulting work from him, 
> after his promise to "stay in touch", so I don't know where he went from there. 
>
> If anyone recognizes the altar from a scene in a flick, I'd love to know... 
> they were fully Maya ingrained, probably a Maya guy showed him how to do 
> the same in Maya, and the status quo won out rather than switch.
>
>  ----------------
> Sent by Roger Wickes for intended recipient. If you are not the intended recipient, please delete this message and contact Mr. Wickes immediately.
>
>
>
>
> ________________________________
> From: Sean Olson <shatter98 at hotmail.com>
> To: bf-committers at blender.org
> Sent: Fri, November 13, 2009 6:48:12 PM
> Subject: Re: [Bf-committers] Map Camera Coordinates to UV layer patch
>
>
> Did he switch?
>
>
>  
>> Date: Fri, 13 Nov 2009 11:00:49 -0800
>> From: rogerwickes at yahoo.com
>> To: bf-committers at blender.org
>> Subject: Re: [Bf-committers] Map Camera Coordinates to UV layer patch
>>
>> I did a tutorial on all of this last year for a hollywood guy who said
>> he would switch to Blender if I could convince him it was as good 
>> as Maya. So I did. 
>>
>> http://wiki.blender.org/index.php/Doc:Tutorials/Textures/UV/Camera_Mapping
>>
>> If there are improvements that could be made to the tutorial,
>> please do so. I would like it to be a catalog of the different
>> workflows available. Thanks.
>>
>>
>>  --PapaSmurf----------------
>> Sent by Roger Wickes for intended recipient. If you are not the intended recipient, please delete this message and contact Mr. Wickes immediately.
>>
>>
>>
>>
>> ________________________________
>> From: Roland Hess <rolandh at reed-witting.com>
>> To: bf-committers at blender.org
>> Sent: Fri, November 13, 2009 1:31:08 PM
>> Subject: [Bf-committers] Map Camera Coordinates to UV layer patch
>>
>> It's the hoops and the workflow that bug me. When doing camera mapping, 
>> I find it much easier to just build my initial forms, drop into camera 
>> view with a background image, then align everything right there. Done. 
>> If I could bake that camera view directly into UV coords, then my job is 
>> done, and with a familiar, easily tweakable result.
>>
>> Brecht made the comment in the patch tracker that this is really UV 
>> wrapping functionality, and should be included as an unwrap option. 
>> After going through the code for the various unwrap methods, I'm 
>> thinking that the best approach would be this:
>>
>> Have "Unwrap from View" simply do this correctly when the view is a 
>> camera view. It's what you would expect anyway, but the unwrap code 
>> doesn't really deliver. There's even a note in the source about how 
>> "scaling gets weird" when you do it from camera view. I'd propose that I 
>> just fix that "weirdness" so that when you "Unwrap from View" in a 
>> camera view, you get what you should have gotten all along: a direct 
>> translation of the 2D representation of the mesh in the camera view in 
>> the UV Editor.
>>
>> With that fixed, there is no need for sticky coordinates and they can 
>> just go away.
>>    
>>> The main issue I have with UV Projection modifier is that in order to
>>> have it bake to a uv layout that you can paint over you have to jump
>>> through some crazy hoops. If you apply the modifier it projects to view
>>> which is useless if you would like to paint the backside of the object.
>>>
>>> Briggs walked me through a very complex setup about 6 months ago to bake
>>> to a custom defined uv layout that I had made. That was good but after
>>> leaving it for a few months there is no way I could duplicate it. I did
>>> not understand the reasoning behind why it was so hard to do but Briggs
>>> described it as two sepearte systems not communicating well.
>>>
>>> Ideally you could bake what is projected to a UV layout.
>>>      
>> -- 
>>
>> Roland Hess
>> harkyman
>>
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