@thi.ng/shader-ast-stdlib/tex/index-coord.js

Function collection for modular GPGPU / shader programming with @thi.ng/shader-ast

import { uvec2 } from "@thi.ng/shader-ast/ast/lit";
import { div, madd, modi } from "@thi.ng/shader-ast/ast/ops";
import { $x, $y } from "@thi.ng/shader-ast/ast/swizzle";
const indexToCoord = (i, width) => uvec2(modi(i, width), div(i, width));
const coordToIndex = (coord, width) => madd($y(coord), width, $x(coord));
export {
  coordToIndex,
  indexToCoord
};