ation, false, matrix);
            gl.uniform1i(diffuseLocation, 0);

            gl.bindVertexArray(vertexArray);

            gl.drawArrays(gl.TRIANGLES, 0, 6);

            // Delete WebGL resources
            gl.deleteBuffer(vertexPosBuffer);
            gl.deleteBuffer(vertexTexBuffer);
            gl.deleteTexture(texture);
            gl.deleteProgram(program);
            gl.deleteVertexArray(vertexArray);
        });
    })();
    </script>
    <div id="highlightedLines"  style="display: none">#L4