oss/luanti
oss/luanti
1
0
Fork 0
mirror of https://github.com/luanti-org/luanti.git synced 2025-07-07 16:48:40 +00:00
Code Wiki Activity

Enable cleanTransparent filter for mipmapping and improve its' algorithm (#11145)

Browse source
This commit is contained in:
sfan5 2021-04-20 19:50:19 +02:00 • committed by GitHub
parent 90a7bd6a0a
commit 1da73418cd
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 105 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/client/imagefilters.h
View file

@ -23,13 +23,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
/* Fill in RGB values for transparent pixels, to correct for odd colors
* appearing at borders when blending. This is because many PNG optimizers
* like to discard RGB values of transparent pixels, but when blending then
* with non-transparent neighbors, their RGB values will shpw up nonetheless.
* with non-transparent neighbors, their RGB values will show up nonetheless.
*
* This function modifies the original image in-place.
*
* Parameter "threshold" is the alpha level below which pixels are considered
* transparent. Should be 127 for 3d where alpha is threshold, but 0 for
* 2d where alpha is blended.
* transparent. Should be 127 when the texture is used with ALPHA_CHANNEL_REF,
* 0 when alpha blending is used.
*/
void imageCleanTransparent(video::IImage *src, u32 threshold);