bayaMmaseke

Applies an alpha mask to an image.

bayaMmaseke(setshwantsho, mmaseke)

Mutates image transparency using another image’s alpha channel. Masks accumulate; applying one does not create a copy and cannot restore pixels hidden by a previous mask. The source mask is unchanged. Returns undefined.

Parameters

Name	Type	Description
`setshwantsho`	`setshwantsho`	Image to mask.
`mmaseke`	`setshwantsho`	Image whose alpha channel supplies the mask.

Examples

Applies an alpha mask to an image

Open in editor ↗

tiro setaLoeto() {
  thalaKanefase(320, 220);
  bokamorago(235);
  diri s = letela tlisaSetshwantsho("mokolwane.png");
  diri g = bopaBoalo(s.bophara, s.boleele);
  dirisaMoGo(g, tlatsaMmala, 255);
  dirisaMoGo(g, thalaSediko, s.bophara / 2, s.boleele / 2, s.bophara);
  diri mmaseke = dirisaMoGo(g, mmalaWaPhikisele);
  bayaMmaseke(s, mmaseke);
  thalaSetshwantsho(s, 80, 25, 160, 170);
  emisaPoapoeletso();
}

See also

dirisaMoGo, tlisaSetshwantsho