Function addKeywords

script.js:431–438

(source, keywords)

};

function addKeywords (source, keywords) {
    if (keywords == null) return source;
    let keywordsString = '';
    keywords.forEach(keyword => {
        keywordsString += '#define ' + keyword + '\n';
    });
    return keywordsString + source;
}

const baseVertexShader = compileShader(gl.VERTEX_SHADER, `
    precision highp float;