regl-shape/lib/shaders/miter-shader/index.js

2D shape shader for regl

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createMiterShader = void 0;
const shader_vert_1 = __importDefault(require("./shader.vert"));
const shader_frag_1 = __importDefault(require("./shader.frag"));
function createMiterShader(regl, offsetBuffer, baseOptions) {
    const drawConfig = Object.assign(Object.assign({}, baseOptions), { 
        // culling removes polygon creasing
        cull: {
            enable: true,
            face: "back",
        }, vert: shader_vert_1.default,
        frag: shader_frag_1.default, attributes: {
            // is line end
            lineEnd: {
                buffer: offsetBuffer,
                divisor: 0,
                stride: 8,
                offset: 0,
            },
            // is line top
            lineTop: {
                buffer: offsetBuffer,
                divisor: 0,
                stride: 8,
                offset: 4,
            },
            // left color
            aColor: {
                buffer: (_, props) => props.colorBuffer,
                stride: 4,
                offset: 0,
                divisor: 1,
            },
            // right color
            bColor: {
                buffer: (_, props) => props.colorBuffer,
                stride: 4,
                offset: 4,
                divisor: 1,
            },
            prevCoord: {
                buffer: (_, props) => props.positionBuffer,
                stride: 8,
                offset: 0,
                divisor: 1,
            },
            aCoord: {
                buffer: (_, props) => props.positionBuffer,
                stride: 8,
                offset: 8,
                divisor: 1,
            },
            bCoord: {
                buffer: (_, props) => props.positionBuffer,
                stride: 8,
                offset: 16,
                divisor: 1,
            },
            nextCoord: {
                buffer: (_, props) => props.positionBuffer,
                stride: 8,
                offset: 24,
                divisor: 1,
            },
        } });
    return regl(drawConfig);
}
exports.createMiterShader = createMiterShader;