@tbela99/css-parser/dist/lib/ast/transform/perspective.js

CSS parser, minifier and validator for node and the browser

import { multiply, identity } from './utils.js';

function perspective(x, from) {
    const matrix = identity();
    // @ts-ignore
    matrix[2 * 4 + 3] = typeof x == 'object' && x.val == 'none' ? 0 : x == 0 ? Number.NEGATIVE_INFINITY : -1 / x;
    return multiply(from, matrix);
}

export { perspective };