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Under SDL-2, how to set alpha degree for SDL_Surface?
Nemo3773


Joined: 05 Jun 2015
Posts: 6
Post Posted: Fri Jun 05, 2015 2:18 am
SDL_SetSurfaceAlphaMod can set alpha degree, but it seems effective only for image render, not the image itself.

I need to change the alpha degree for image and save the image to disk.

Thanks Very Happy
MrTAToad


Joined: 13 Feb 2014
Posts: 205
Location: Chichester, England
Post Posted: Fri Jun 05, 2015 11:14 am
You could always render to a new surface (after setting the alpha value) and then save it.
tanks a lot
Nemo3773


Joined: 05 Jun 2015
Posts: 6
Post Posted: Wed Jun 10, 2015 2:34 am
Very Happy