   uniforms : [
                'projViewMatrix',
                'modelMatrix',
                'positionMatrix',
                'fill'
            ],
            positionAttribute : 'POSITION',
            extraCommandProps : {
            }
        })
        function drawScene() { 
            const matrix = getViewProjection();
            uniforms['projViewMatrix'] = matrix.projViewMatrix;
            uniforms['projMatrix'] = matrix.projMatrix;
            uniforms['viewMatrix'] = matrix.viewMatrix;
