Fixed Point Maths or GLfloat?

[evening]

Hi all,

I’am new in OpenGL and OpenGL ES.

Should I use GLfloat in OpenGL ES? Will it slow down the program?..

In fact, I search this topic in the internet. There are many papers say that Fixed Point Maths should be implemented in moblie devices. Is it true?

Thanks for your help.

[hmwill]

If you can, yes, try to use fixed point math.
At this point, most mobile devices based on ARM do not have a core that directly supports floating point math. Also, at least in the case of Vincent, the floating point layer is a wrapper around the fixed point kernel, so using fixed point reduces the level of indirection and hence increases the performance.

• HM

[evening]

Thanks ^^