[fpc-pascal] GLExt crashing

[Michalis Kamburelis]

Ryan Joseph wrote:
> I’m using OpenGLES 1.1 because it was easier to learn but I don’t see
> glBlendEquation being included in the GLES11 unit. Maybe it didn’t
> exist until OpenGLES 2.0?
> 

Indeed, glBlendEquation is simply not available in OpenGLES 1.1.

See the specs: https://www.khronos.org/opengles/ , e.g. the list of
OpenGLES 1.1 functions on
https://www.khronos.org/opengles/sdk/1.1/docs/man/ .

Michalis