Hi, I'm trying to create a 3d texture, which will be accessed in a shader
program. I think i'm having problems with the texture creation, because the
following message is always
printed:
WARNING: (..\..\..\Source\System\State\Base\WS\OSGTextureObjChunk.cpp,1187):
TextureObjChunk::initialize image failed: invalid value (0x501)
I found that this error occurs when a invalid value is passed to opengl. But
i can't see what i'm doing wrong. Here is the code:
OSG::ImageTransitPtr image3D = OSG::Image::create();
image3D->set( OSG::Image::OSG_L_PF, width, height, depth, 1, 1, 0, data,
OSG::Image::OSG_UINT8_IMAGEDATA );
// create and configure a 3d texture
_envChunk = OSG::TextureEnvChunk::create();
_envChunk->setEnvMode( GL_REPLACE );
OSG::TextureObjChunkUnrecPtr texture = OSG::TextureObjChunk::create();
texture->setImage( image3D );
texture->setTarget( GL_TEXTURE_3D );
texture->setWrapS( GL_CLAMP_TO_EDGE );
texture->setWrapT( GL_CLAMP_TO_EDGE );
texture->setWrapR( GL_CLAMP_TO_EDGE );
texture->setMagFilter( GL_LINEAR );
texture->setMinFilter( GL_LINEAR );
// create a textured material for the 3d texture
_material = OSG::SimpleMaterial::create();
_shl = OSG::SimpleSHLChunk::create();
if( !_shl->readFragmentProgram( ( Application::dataDir() + "/prog.fp"
).data() ) )
fprintf( stderr, "Couldn't read fragment program 'prog.fp'\n" );
_shl->addUniformVariable( "tex", 0 );
_material->setLit( false );
_material->addChunk( _shl );
_material->addChunk( texture );
_material->addChunk( _envChunk );
data is a array of unsigned chars with width * height * depth elements. I'm
using a nvidia quadro fx 5500, so i think the hardware is not the problem
since 3d texture is supported.
Is there anything wrong with the code above?
Tanks in advance,
Daniel
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