Function called without first calling 'glutInit'

[saulrh]

I get the following error after GRIP loads a world:

freeglut ERROR: Function <glutSolidCube> called without first calling 'glutInit'.

The world loads, but GRIP crashes as soon as it tries to render. GRIP is unusable in this state.

[ehuang3]

I will replace drawCube (and other draw calls) with pure gl calls instead of glut calls. I believe dart's apps uses glut but it seems grip does not use glut.

[saulrh]

Turns out it was a bad commit that Tobias made to DART; it's been fixed.

[saulrh]

You can remove the glut calls if you want, though. Probably not a big deal.

[ehuang3]

Let's leave this issue open for now, I want to remove the glut calls because they will crash GRIP if used.

[tobiaskunz]

Why are they crashing GRIP?

[ehuang3]

I believe glut expects to be called within it's own execution context, glutMainLoop(). Therefore it reports an error when called out of context. glutSolidCube is a convenience function for drawing a cube that glut provides.

[tobiaskunz]

Are we calling glutInit when using GRIP? May be we are just not initializing glut.

[ehuang3]

No, we are not calling glutInit in GRIP. wx runs the main loop in GRIP. I do not think we can run glut in GRIP as glut expects control of the main loop.