[Flightgear-devel] 2d instrument clipping...

[Syd <syd...@te...>]

Hi all,
Ive tried to tackle 2d instrument clipping and had some success , but
I'm pretty rusty , I used to do a bit of programming with the DX9 SDK ,
so a lot of Opengl looks familiar , but its still a struggle.
I tried using the glScissor test , and it works well for standard 2d
panels, but clipping is done in screen coordinates , so it doesn't work
with instruments projected onto a 3d panel . I messed around with
glViewport , but that's definitely not the answer.Could anyone with
more experience suggest another route ?
I thought of masking , but don't know enough yet to try that,and I
understand it's a 2 stage process. The only thing I think might work
would be RendertoTexture, but I'm not sure.Need to learn more.Think
it's doable , or has this all been tried before ?
Thanks,
Syd