Hi all,
I'm using openSG 1.8 ( dailybuild 9 Nov 2009 ) for a personal project
but I have some issues.
I'm using two FBOs to calculate some values with a "ping pong approach":
the outputs of the first FBO are the inputs of the second and viceversa.
The output of each FBOs is written on two different texture for a total
of 4 texture. If these texture are "small" ( 8x8 or 16x16 ) everything works
and I get consistent results. But if gave them a bigger texture (
1024x1024 ) whenever I render the FBOs openSG gives me some warning, and
the results are garbage.
Here is the small piece of code that produces the errors:
//Render initialization pass
beginEditCP( m_MainDistanceShader );
m_MainDistanceShader->setUniformParameter( "initializationPass",
true );
endEditCP( m_MainDistanceShader);
m_MainDistanceMapFBO->render( action );
std::cout << "\nDistance maps initialization complete!\n";
beginEditCP( MainDistanceShader );
MainDistanceShader ->setUniformParameter( "initializationPass",
false );
endEditCP( MainDistanceShader );
//Render remaining passes
int max_dimension = osgMax<int>( m_SourceWindow->getWidth(),
m_SourceWindow->getHeight() );
int num_passes = osglog( max_dimension )/ osglog( srch_wnd ) + 1;
for( int pass = 0; pass < num_passes; pass += 2 )
{
m_SecondaryDistanceMapFBO->render( action );
m_MainDistanceMapFBO->render( action )
}
std::cout << "\nDistance maps rendering complete!";
And here is the output:
Distance maps initialization complete!
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
WARNING: 8cd9: framebuffer FRAMEBUFFER_DIMENSIONS
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,1788):
TextureChunk::activate precheck failed: (null) (0x506)
WARNING:
(f:\devel\opensg\source\system\state\osgtexturechunk.cpp,2411):
TextureChunk::deactivate precheck failed: (null) (0x506)
Distance maps rendering complete!
FYI, the texture I'm using is 496x736, while srch_wnd is 4. The number
of passes is 6 ( including the initialization pass ). As you can see
everytime one of the FBOs is rendered I got three different warnings.
Any idea on how to fix that?
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