Peter Castine

Is there any sample code using gldrawpixels with the Jitter OpenGL objects?

What I want to be able to do is to read an image file from disk into a jit.qt object and from there to place it (probably with scaling, definitely including the alpha channel) at arbitrary positions in the GL context.

I've read the jit.gl.sketch Help File and Reference. The latter helpfully says "Please see the OpenGL 'Red Book' or 'Blue Book' for more information." What I have is the SuperBible 5thEd., which I've duly consulted, but the reference section goes from glDrawElementsInstancedBaseVertex to glDrawRangeElements, so not much help there.

I will look at the online Red Book next, but if someone can shed some light on this I would be grateful.

examples-of-gldrawpixels-in-jit-gl-sketch

20 minutes in the library and I'm further along… I needed to read up on glRasterPos() and glPixelZoom().

Still, if anyone has sample patch putting these things together it would be greatly appreciated.

Examples of gldrawpixels in jit.gl.sketch?