GLdouble & float compatibility

[hoshi55]

could it be that the GLdouble and float datatypes are extremely incompatible to each other? i just wrote a little routine for frustum culling and it took me 2 days to find that the reason why it wasn't working is that when i cast from GLdouble to float and vice versa, the data gets completely messed up!

eik

[mikael_aronsson]

Hi !

GLdouble is a double, GLfloat is a float, type casting from GLdouble to float will loose some precision, but except from that it should work fine, take care of functions calls like printf/sprintf/fprintf so you don't pass a float when it is expecting a double and things like that.

Mikael