Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Josh Babcock
Chris Metzler wrote:
For those of you who've worked on 3d modelling/texturing, please please
please tell me I'm missing something here.
I've an object I've created in Blender.  Using the UV Face Editor, I
load one texture file and map some of the faces to it (or actually,
to a region much much larger than it, because I want the texture
tiled many times over the faces in question).  I load another texture
file and map the other faces to it.  I look at my object in Blender,
and it looks fine.  I export it to AC3D format, and only one texture
shows up.
I've done some poking around with the .ac files that come with FG,
and haven't found one with more than one texture file associated
with one object, and now I'm worried.  Is this something Blender
can do, but AC3D (and thus AC3D files) cannot?
-c


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AC3D does not support multiple textures per object, AFAIK.
Josh
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Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Jim Wilson
Josh Babcock said:

 AC3D does not support multiple textures per object, AFAIK.
 Josh

This is correct.

http://www.ac3d.org/ac3d/man/ac3dfileformat.html

It is possible to group multiple objects under a single name.

Best,

Jim


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Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Chris Metzler
On Wed, 28 Jul 2004 13:59:37 -0400
Josh Babcock [EMAIL PROTECTED] wrote:
Chris Metzler wrote:
 For those of you who've worked on 3d modelling/texturing, please
 please please tell me I'm missing something here.
 
 I've an object I've created in Blender.  Using the UV Face Editor, I
 load one texture file and map some of the faces to it (or actually,
 to a region much much larger than it, because I want the texture
 tiled many times over the faces in question).  I load another texture
 file and map the other faces to it.  I look at my object in Blender,
 and it looks fine.  I export it to AC3D format, and only one texture
 shows up.
 
 I've done some poking around with the .ac files that come with FG,
 and haven't found one with more than one texture file associated
 with one object, and now I'm worried.  Is this something Blender
 can do, but AC3D (and thus AC3D files) cannot?

 AC3D does not support multiple textures per object, AFAIK.

Oh, that sucks.  That truly, truly sucks.  Having finished several
objects, I now have to go back and break each of them up into
multiple smaller objects.  Using one unified texture, and UVmapping
on it, isn't an option since it'd require a 2048x2048 texture.

Dangit.

-c

-- 
Chris Metzler   [EMAIL PROTECTED]
(remove snip-me. to email)

As a child I understood how to give; I have forgotten this grace since I
have become civilized. - Chief Luther Standing Bear


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Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Curtis L. Olson
Chris Metzler wrote:
On Wed, 28 Jul 2004 13:59:37 -0400
Josh Babcock [EMAIL PROTECTED] wrote:
 

Chris Metzler wrote:
   

For those of you who've worked on 3d modelling/texturing, please
please please tell me I'm missing something here.
I've an object I've created in Blender.  Using the UV Face Editor, I
load one texture file and map some of the faces to it (or actually,
to a region much much larger than it, because I want the texture
tiled many times over the faces in question).  I load another texture
file and map the other faces to it.  I look at my object in Blender,
and it looks fine.  I export it to AC3D format, and only one texture
shows up.
I've done some poking around with the .ac files that come with FG,
and haven't found one with more than one texture file associated
with one object, and now I'm worried.  Is this something Blender
can do, but AC3D (and thus AC3D files) cannot?
 

AC3D does not support multiple textures per object, AFAIK.
   

Oh, that sucks.  That truly, truly sucks.  Having finished several
objects, I now have to go back and break each of them up into
multiple smaller objects.  Using one unified texture, and UVmapping
on it, isn't an option since it'd require a 2048x2048 texture.
 

Be careful how many 2048x2048 textures you use.  Just one of those is 
12.5Mb of your card's onboard video RAM.  If your texture has an alpha 
component, that grows to almost 17Mb of RAM.

Think seriously about how big your object will be on the screen (pixels 
x pixels) from normal viewing range.  Sure it would be great to be able 
to zoom on on a building and see the molecular structure of the brick, 
but remember this is a flight sim and typically we keep a reasonable 
distance between the aircraft and the environment.

Regards,
Curt.
--
Curtis Olsonhttp://www.flightgear.org/~curt 
HumanFIRST Program  http://www.humanfirst.umn.edu/
FlightGear Project  http://www.flightgear.org
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Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Chris Metzler
On Wed, 28 Jul 2004 13:48:03 -0500
Curtis L. Olson [EMAIL PROTECTED] wrote:
 Chris Metzler wrote:

 Oh, that sucks.  That truly, truly sucks.  Having finished several
 objects, I now have to go back and break each of them up into
 multiple smaller objects.  Using one unified texture, and UVmapping
 on it, isn't an option since it'd require a 2048x2048 texture.
 
 Be careful how many 2048x2048 textures you use.  Just one of those is 
 12.5Mb of your card's onboard video RAM.  If your texture has an alpha 
 component, that grows to almost 17Mb of RAM.

Yeah, that's why I'm not gonna do it.  It makes more sense -- even if
it *is* tedious -- to break up the objects.

-c

-- 
Chris Metzler   [EMAIL PROTECTED]
(remove snip-me. to email)

As a child I understood how to give; I have forgotten this grace since I
have become civilized. - Chief Luther Standing Bear


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Re: [Flightgear-devel] blender -- AC3D: one texture file per object??

2004-07-28 Thread Ampere K. Hardraade
On July 28, 2004 02:40 pm, Chris Metzler wrote:
 Oh, that sucks.  That truly, truly sucks.

Don't feel bad.  I don't think 3D Studio supports multiple textures per object 
either.

On July 28, 2004 02:48 pm, Curtis L. Olson wrote:
 Be careful how many 2048x2048 textures you use.  Just one of those is
 12.5Mb of your card's onboard video RAM.  If your texture has an alpha
 component, that grows to almost 17Mb of RAM.
How does that work?

Regards,
Ampere

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