After Effects + OpenGL

Question

I know that this subject was already touched upon here a couple of years ago but I want to refresh it.
I'm interested in implementing OpenGL in After Effects' plugin. Is is possible yet? If yes - how?
This is my simple example code I would like to use in After Effects plugin:
int size = 500;
glColor4f(1, 0, 0, 1);
glBegin(GL_POLYGON);
     glVertex2f(-size, -size);
     glVertex2f(-size, size);
     glVertex2f(size, size);
     glVertex2f(size, -size);
glEnd();
Any help would be appreciated.

Answer 1

Hello everybody.
I managed to make opengl work within AE. I'm creating an offset window with nsopenglview, grab all the pixels and add them to the footage. That works ok.
But I have some quetsions about opengl in AE.
1. I have an Edit button to change some opengl shapes.
When I click Edit, AE waits till I change for example the color of the shapes.
After applying the changes I use the following commands in UserChangedParam to force render in AE:
params[slider_rerender_id]->u.sd.value += 1;
params[slider_rerender_id]->uu.change_flags |= PF_ChangeFlag_CHANGED_VALUE;
params[slider_rerender_id]->uu.change_flags |= PF_OutFlag_FORCE_RERENDER;
For this I use this reRender slider:
After these lines of code, AE increments reRender slider's value  but nothing changes in the scene. I have to change parameter manually to force render...
Is there any way to force render in AE? I know that AE remembers frames but in that situation I want AE to force render every time I change something in opengl.
2. I don't know why opengl commands tend to crash Premiere. In AE opengl works ok, but in Premiere it crashes or even hangs my Mac every time I load my plugin. Is there any solution for that?
3. Is there a way to put an uneditable/hidden text field within the plugin? I know that there's nothing like textfield parameter. How can I create my textfield parameter or  save my text in some of the available parameters?
Thanks for your answer!
Dave