Hi Oliver,
The osgprerender example has a code path that does render to image and
then modifies the image.
On 6/11/07, Oliver Kutter <[EMAIL PROTECTED]> wrote:
Hi,
I use a CameraNode to render my scene to an image:
cameraNode->attach(osg::CameraNode::COLOR_BUFFER,
_image.get());
Later I want to change the image content by setting the r,g & b values of
the image data:
// myCamera is the class which provides the rendering to the image
osg::Image* image = myCamera->getImage();
unsigned char* data = image->data();
int size = image->s() * image->t();
// just as an example: I want to set the image color to black
for (int i=0; i<size*3; i++) {
data[i] = 0;
}
But I don't get the image color set to black. I wonder what kind of data I
get with image->data()? The const or the non-const data? Because I think
that I should be able to change the color if I get the non-const data. So I
think that I'm getting the const data.
But what do I get exactly?
regards
Oliver
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