public virtual void Draw()
{
gl.Enable(WebGLRenderingContextBase.DEPTH_TEST);
gl.Viewport(0, 0, canvasWidth, canvasHeight);
gl.ClearColor(clearColor.X, clearColor.Y, clearColor.Z, clearColor.W);
gl.Clear(WebGLRenderingContextBase.COLOR_BUFFER_BIT);
gl.UniformMatrix4fv(pMatrixUniform, false, projectionMatrix.ToArray());
gl.UniformMatrix4fv(vMatrixUniform, false, viewMatrix.ToArray());
gl.UniformMatrix4fv(wMatrixUniform, false, worldMatrix.ToArray());
gl.DrawElements(WebGLRenderingContextBase.TRIANGLES, indices.Length, WebGLRenderingContextBase.UNSIGNED_SHORT, 0);
}