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better random_blocks

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Tonton Th
2020-12-23 16:40:45 +01:00
parent bef5954b93
commit 1a185d05c5
2 changed files with 12 additions and 6 deletions
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16
Fonderie/glitches.c
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@@ -100,13 +100,19 @@ int random_blocks(FloatImg *picture, int percent)
{
int x, y;
for (y=0; y<picture->height; y+=8) {
for (x=0; x<picture->width; x+=8) {
if ( (picture->width%16) || (picture->height%8) )
{
fprintf(stderr, "%s: %d%d bad dims\n", __func__,
picture->width, picture->height);
}
for (y=0; y<picture->height; y+=16) {
for (x=0; x<picture->width; x+=16) {
if (percent < (rand()%100) ) {
un_petit_flou_8x8(picture,x, y);
un_petit_flou_8x8(picture, x, y);
un_petit_flou_8x8(picture, x+8, y);
un_petit_flou_8x8(picture, x, y+8);
un_petit_flou_8x8(picture, x+8, y+8);
}
}