ATISA
→ MULTIPLYA mode that multiplies the two colours, so the result is always darker.
ATISAATISA multiplies each channel by the other and divides by 255. Because every number is between 0 and 255, the result can never be lighter than either input — ATISA always darkens.
Measured: (100, 150, 200) over (200, 100, 50) gives (79, 59, 40) — 200 × 100 ÷ 255 = 78.4, and so on.
It is like laying two panes of coloured glass over one another: the light has to get through both. SCREEN is its opposite.
Examples
Section titled “Examples”tiro setaLoeto() {
thalaKanefase(400, 240);
bokamorago(255);
tlogelaMothalo();
seeloSaMotswako(ATISA);
tlatsaMmala(255, 200, 60);
thalaKhutlonne(60, 40, 180, 160);
tlatsaMmala(60, 200, 220);
thalaKhutlonne(160, 40, 180, 160);
seeloSaMotswako(MOTSWAKO);
tlhalosa('Dikhutlonne tse pedi — e serolwana le e botala jwa loapi — tse di kopanang; karolo e di kopanang mo go yona e lefifi go feta tsona tsotlhe tse pedi.');
}