date:20090408

Re: [osg-users] animating textures

2009-04-08 Thread Robert Osfield

Hi Julia,

On Wed, Apr 8, 2009 at 3:57 AM, Julia Guo mrvoltem...@gmail.com wrote:

 Hi, thanks very much for the advices.

 I now have a basic MultitextureControl example working that fades a single
 texture.
 However I cant seem to activate texture unit 1. The following example only
 shows the texture if I set unit to 0:

 Code:
 addDrawable(new osg::ShapeDrawable(new osg::Cone()));
 texture = new osg::Texture2D;
 texture-setImage(osgDB::readImageFile(brick1.TGA));
 int unit = 1; // works fine when unit=0
 getOrCreateStateSet()-setTextureAttributeAndModes(unit, texture);



This doesn't really provide enough info about your overall texture set to
know whether it's appropriate.  Most likely the problems you are seeing are
related to not setting up the scene graph appropriately, but as to what you
are doing wrong I can't say.


 Like lights, is only texture 0 activated by default? Am I missing something
 to activate the texture?


All textures are off by default, you have to explicitly enable them all.


  The other way to do it is use a 3D texture and then vary the r coord.
  See the osgtexture3D example for an example of this.
 

 hi Robert: is there an advantage to this technique or has it been obsoleted
 by MultitextureControl?


It's just a different way of doing it, there are pros and cons of both
ways.  The OSG/OpenGL are just the basic language that you the programmer
use to construct your graphics app, how you use it depends upon what you are
trying to achieve.

Robert.
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[osg-users] Watch your favorite Live TV Streaming Channels in PC

2009-04-08 Thread Lita1985

Hello guys,
I have read a lot about internet satellite tv players.. to be honest, I am 
quite disappointed because the ones I tried have a pretty poor channel offering 
and do not actually offer premium channels like ESPN to watch live sports and 
stuff. After a few weeks I ended up on www.satellite-tv-player.com and it's the 
only one I would recommend to my friends.
As they claim on their website, the software comes with more than 3000 TV 
channels, 1000+ Radio channels, 1000+ online movies. This last feature is 
pretty cool. It's like you have a huge database of movies ready to go. You 
simply click on any movie name to start watching straight away with no need to 
download. But the best thing is that the 95% of the TV channels does actually 
work. Too many TV to PC software have no maintenance, with the net result that 
40-50% of the channels are like broken or offline. In this case, 
www.satellite-tv-player.com offers a dedicated team of content managers who 
tune up the TV signals on a daily basis. The updates are sent to all users via 
a live update service which can be launched anytime via software user interface 
(you will see an update button on the top right corner of the software 
window). You just click on the update button and in a matter of 5-7 seconds you 
get the updates of the day! The quality of the channels is definitely go
 od for the one-time-fee I paid (29 bucks), including ESPN, CBS, Fox, CNN 
streams (there is also plenty of European channel I do not know..). On top of 
this, I have contacted customer support twice to request the addition of two 
local channels from my area (San Diego); the customer support replied to my 
email within 12 hours (another website replied to my email after 4 days...) and 
after 3 days I noticed my 2 channels had been added into the TV Player.. pretty 
amazing! To me, this is the right choice, good luck guys, peace and love, 


--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=9877#9877





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Re: [osg-users] vpbmaster vs osgdem

2009-04-08 Thread Robert Osfield

Hi Gert,

Unfortunatly the extra details of the crash don't help too much, they just
provide a few more clues but only scant ones. It's the stack trace that is
the essential part to homing in on the cause.

Try build this task on a different OS, there is a chance that it will either
just work, or if it fails it will provide more clues as to what might be
wrong.

Another leads to follow up on is whether gdal is able to read
earthmap_merged.tif file, try using gdalinfo on the file to see it can be
read OK.

Robert.

On Wed, Apr 8, 2009 at 4:07 AM, Gert van Maren g...@k2vi.com wrote:

Hi Robert,

I did run osgdem in debug mode. No stack trace but the following error in
the output log:

First-chance exception at 0x7c812a5b in osgdemd.exe: Microsoft C++
exception: std::bad_alloc at memory location 0x00dbe350..
The thread 'Win32 Thread' (0xca0) has exited with code 1 (0x1).
The program '[2704] osgdemd.exe: Native' has exited with code 1 (0x1).

Full log attached.

Ran it multiple times now in debug and release. The log always stops with
the same last line

3479.794 : DestinationTile::readFrom(SetName=,
FileName=F:\K2Vi\Globe_data\earth\images\NEW_Global_texture\earthmap_with_clouds\earthmap_merged.tif)

Does that give a clue? Maybe data issue? Only variation is the first
number.

The only other thing I could see was a error in the DOS window when running
VPB but this happened in a earlier task:
PixelBufferWin32::makeCurrentImplementation, wglMakeCurrent error: The
handle is not valid also attached.

Gert

On Mon, 06 Apr 2009 10:05:22 +1200,
osg-users-requ...@lists.openscenegraph.org wrote:

So try simply running:

osgdem --run-path F:\K2Vi\work_in_progress\Melbourne\osgdem -s
build_master.source --subtile 13 7394 1195 --task
tasks/build_subtile_L6_X57_Y9/build_subtile_L13_X7394_Y1195.task --log
logs/build_subtile_L6_X57_Y9/build_subtile_L13_X7394_Y1195.log

Hopefully this task will fail again, if it does then try and run it in a
debugger to get a stack trace.

Beyond this we don't really have any clues what have gone wrong. Another
thing you could try is building under another OS. Windows isn't the best
platform to do heavy duty lifting like large builds on as the file system is
just too slow for this type of work.

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