Alpha blending

Graphics and GPU Programming Programming

Started by zhech July 31, 2001 04:27 PM

1 comment, last by zhech 22 years, 8 months ago

122

Author

July 31, 2001 04:27 PM

I''m loading a .tga file and have loaded in the GL_RGBA format. I want to use the alpha value for alpa blending. I had it working for a second then I don''t have a clue what happened and it stopped. Does anyone have any ideas?

Justin Olson

jerry2

122

July 31, 2001 07:54 PM

you can use the glBlendFunc to set pixel arithmetic,use the glAlphaFunc to set alpha test,and use glEnable(GL_BLEND)to enable alpha blending.the particular ways please see the OpenGl function reference.

jerry2

jerry2The God creates the world, the world creates the nature,the nature creates human. Human create...Everything.

zedzeek

529

July 31, 2001 11:19 PM

see my site for a recent app that shows how opengl blending works

Captain Courgette, eat more veg