PDA

View Full Version : Hardware Blending?



DarthPaul
04-08-2003, 04:27 AM
How can I prove that OpenGL uses hardware to blend textures for both 2D and 3D textures?

raverbach
04-08-2003, 04:37 AM
everything ,that every software does, uses a hardware some way or other

blending texture is a thing
OpenGL is a software

so OpenGL uses hardware for blending textures http://www.opengl.org/discussion_boards/ubb/biggrin.gif

Logically proved http://www.opengl.org/discussion_boards/ubb/smile.gif

DarthPaul
04-08-2003, 04:44 AM
Yes, but does it use graphics card to accelerate the computations for blending?

nutball
04-08-2003, 04:51 AM
Yes, if you have the right card and the right drivesr.

hcdlt
04-08-2003, 04:54 AM
i think you can tell by looking to your program. if it runs smooth or at least at reasonable frame rates it definitely IS done in hardware, otherwise you would get an annoying slow result (assuming you've implemented some sort of time-based rendering...).

raverbach
04-08-2003, 05:02 AM
Yup , if you code it to do it http://www.opengl.org/discussion_boards/ubb/smile.gif

raverbach
04-08-2003, 05:29 AM
One of the most well known cases is hardware that donīt support multitexturing http://www.opengl.org/discussion_boards/ubb/frown.gif
so your glMultiTexCoordXX calls will not work ..