DirectDraw: vertical lines appearing instead of transprent color

Graphics and GPU Programming Programming

Started by Lucky_Dave September 15, 2002 04:07 PM

2 comments, last by Lucky_Dave 21 years, 7 months ago

122

Author

September 15, 2002 04:07 PM

I am blitting DD7 surfaces onto my backbuffer. My problem is that my transparent color is not transparent. Instead, it displays vertical lines, one transparent, one with the color that was supposed to be transparent, and so one. What''s happening ? Anyone would help please ?

atcdevil

145

September 15, 2002 04:10 PM

Make sure the size of the destination and source rects are equal. I''ve run into similar problems when they were off by one or something like that.
-Andrew

Aldacron

4,545

September 16, 2002 05:53 AM

Dest and source rects do not have to be equal. Eit her one can be larger or smaller than the other. Are you converting your transparent color to the current bit depth before you send the value to the surface?

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