[Openexr-devel] working with "half float" textures in OpenGL

[Paul Miller]

For those of you who have worked with these, I have a couple of questions:

1. what extension(s) should you check for to detect if the hardware 
supports the GL_HALF_FLOAT_NV texture format? This assumes you want the 
broadest range of hardware.  Currently I am checking for 
"GL_NV_half_float" but I haven't tried this on ATI hardware yet.

2. is it possible to have an RGBA half-float texture organized with the 
channels in a different order (such as BGRA or ARGB)? Or must the 
components be in RGBA order?

Many thanks!

--
Paul Miller | address@hidden | www.fxtech.com | Got Tivo?