Hi,
I'm having a problem in my custom shader while updating my texture2D using
image->dirty() function. Following there is the relevant code snippet.
Code:
osg::StateSet* stateset = geom1->getOrCreateStateSet();
osg::ref_ptr<osg::Program> program = new osg::Program;
osg::ref_ptr<osg::Shader> vertexSource = new osg::Shader(osg::Shader::VERTEX);
osg::ref_ptr<osg::Shader> fragmentSource = new
osg::Shader(osg::Shader::FRAGMENT);
vertexSource->setShaderSource(vert);
fragmentSource->setShaderSource(frag);
program->addShader(vertexSource);
program->addShader(fragmentSource);
stateset->setAttributeAndModes(program.get());
stateset->setDataVariance(osg::Object::DYNAMIC);
////
osg::ref_ptr<osg::Image> diffuseImage = osgDB::readImageFile(".\\img0.png");
std::cout << " File " << diffuseImage->getFileName() << " " << std::endl; // it
prints img0
osg::ref_ptr<osg::Texture2D> diffuseTex = new osg::Texture2D;
diffuseTex->setDataVariance(osg::Object::DYNAMIC);
diffuseTex->setImage(diffuseImage.get());
stateset->setTextureAttributeAndModes(0, diffuseTex.get(),
osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
osg::ref_ptr<osg::Uniform> cDiffTex = new
osg::Uniform(osg::Uniform::SAMPLER_2D, "cDiffTex");
cDiffTex->set(0);
stateset->addUniform(cDiffTex.get());
diffuseImage = osgDB::readImageFile(".\\img1.jpg");
diffuseImage->dirty();
std::cout << " File " << diffuseImage->getFileName() << " " << std::endl; // it
prints img1->GOOD the diffuseImage is updated
std::cout << " Tex " << diffuseTex->getImage()->getFileName() << " " <<
std::endl; // it prints img0->BAD the image object of texture is not updated
// NEED TO TELL TEXTURE TO SET THE IMAGE TO HAVE IT UPDATED
//diffuseTex->setImage(diffuseImage);
//std::cout << " Tex " << diffuseTex->getImage()->getFileName() << " " <<
std::endl;
I simply set an image (img0) to a texture2D (diffuseTex) and what I would like
to do is updating the image\texture. Unfortunately what I get is that the
diffuseTex->getImage() function is pointing to the original image while the
object diffuseImage is correctly updated.
If I'm putting the setImage again on texture it is correctly updated.
Am I doing something wrong in passing the image to a texture? Because I've read
that using dirty() function is possible to update all textures that are sharing
the image object with no further actions.
Sorry I'm a newbie in OSG.
Thank you!
Cheers,
Fabrizio[/i]
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http://forum.openscenegraph.org/viewtopic.php?p=60841#60841
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