Hi Yvonne,
it works so far. Now I have just one more thing, a warning:
WARNING: FBO render post OpenGL Error: stack overflow!
or
WARNING: FBO render post OpenGL Error: stack underflow!
What does it mean? Is it an OpenSG or OpenGL warning?
regards,
Oliver
Oliver Kutter schrieb:
Hi Yvonne,
Yvonne Jung schrieb:
Hi Oliver,
this only has to be done if the image size changes.
Really? What happens if the texture changes to another texture with
the same size?
If you have many textures
with different sizes in which you want to render, it is better to assign each
of them a different FBOViewport.
I have different viewports with different textures. But I'll have to
use the "double buffer" concept, because I'm using the output of an
fbo as input for the next step, and then change the textures, so that
the next step is the input for the step after the next step.
BTW, perhaps you also want to try a more
current daily build, because there have been some fixes since 1.8.
I'll try...
Bye
Yvonne
regards
Oliver
Am Fr, 9.05.2008, 18:52, schrieb Oliver Kutter:
Hi Yvonne,
thanks, that's it. But now it is very very slow. Can't I just call the
dirty function once or is there another way to do whatever this function
does?
regards,
Oliver
Yvonne Jung schrieb:
Hi Oliver,
you also need to set the dirty flag.
Bye,
Yvonne
Hi,
I was not working for a very long time with OpenSG. At that time I
used OpenSG 1.6 with an alpha Version of Yvonne Jung's FBOViewport class.
Now I was trying to get it running again with the Windows Install
Version 1.8. As information, I'm doing some general purpose
computation with the fbo class.
It's nearly working, but when I'm rendering to texture and I'm
changing the size of the texture, e.g. 256x256 to 128x128, I'm getting
this warnings:
WARNING: FBO render post OpenGL Error: (null)!
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
and I think, this leads to the fact, that my programm is not working
correctly.
This is my code how I'm changing the size of the texture and the fbo
storage. The code was working the the old 1.6 and alpha fbo class version.
beginEditCP (fboViewport, FBOViewport::StorageWidthFieldMask |
FBOViewport::StorageHeightFieldMask);
fboViewport->setSize(0, 0, width-1, width-1);
fboViewport->setStorageWidth(width);
fboViewport->setStorageHeight(height);
endEditCP (fboViewport, FBOViewport::StorageWidthFieldMask |
FBOViewport::StorageHeightFieldMask);
beginEditCP(fboImage);
fboImage->set(Image::OSG_RGBA_PF, width, height, 1, 1, 1, 0, NULL,
Image::OSG_FLOAT32_IMAGEDATA);
endEditCP(fboImage);
Anyone ideas?
regards,
Oliver
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Yvonne Jung
Fraunhofer-IGD | Tel.: ++49-6151-155-290
Fraunhoferstr. 5 | Fax.: ++49-6151-155-196
64283 Darmstadt | email: [EMAIL PROTECTED]
Germany | http://www.igd.fhg.de/igd-a4
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