Hi there!
as title says.. i'm trying to change the size of a fboviewport after it's
been created.. i couldn't find a solution to this.. here's the code:
// create FBO
colorIMG = Image::create();
beginEditCP(colorIMG);
colorIMG->set(Image::OSG_RGBA_PF, width, height);
endEditCP(colorIMG);
colorTX = TextureChunk::create();
beginEditCP(colorTX);
colorTX->setEnvMode(GL_MODULATE);
colorTX->setMinFilter(GL_LINEAR);
colorTX->setMagFilter(GL_LINEAR);
colorTX->setTarget(GL_TEXTURE_2D);
colorTX->setInternalFormat(GL_RGBA8);
colorTX->setImage(colorIMG);
endEditCP(colorTX);
fboViewport = FBOViewport::create();
beginEditCP(fboViewport);
fboViewport->setSize(0, 0, width-1, height-1);
fboViewport->setStorageWidth(width);
fboViewport->setStorageHeight(height);
fboViewport->setBackground(PassiveBackground::create());
fboViewport->setCamera(PerspectiveCamera::create());
fboViewport->setParent(parent);
fboViewport->setRoot(makePlane(1,1,1,1));
fboViewport->getTextures().push_back(colorTX);
endEditCP(fboViewport);
and now i want to change size:
beginEditCP(colorIMG);
colorIMG->setWidth(width);
colorIMG->setHeight(height);
endEditCP(colorIMG);
// let the texture know about it..
beginEditCP(colorTX);
endEditCP(colorTX);
beginEditCP(fboViewport);
fboViewport->setSize(0, 0, width-1, height-1);
fboViewport->setStorageWidth(width);
fboViewport->setStorageHeight(height);
endEditCP(fboViewport);
this fails and program exits.. if i just try to do this
beginEditCP(fboViewport);
fboViewport->setSize(0, 0, width-1, height-1);
fboViewport->setStorageWidth(width);
fboViewport->setStorageHeight(height);
endEditCP(fboViewport);
without changing image size and texture, the program doesn't exit but all i
get is a black screen.. any clues?
thanks!
Stefano
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