ttenuation * (ambient + diffuse + specular) * baseColor.rgb, baseColor.a);
        }
    </script> 
    <script type="module">
        import { PicoGL } from "../src/picogl.js";
       
        utils.addTimerElement();
        utils.instrumentAnimationFrame();

        if (!testExtension("EXT_color_buffer_float")) {
            document.body.innerHTML = "This example requires extension <b>EXT_color_buffer_float</b> which is not supported on this system."
        }
        
        let canvas = document.getE