There are various ways of creating color effects that lend interest to a bland expanse of wall. You can either work with traditional paints commercially prepared, or you can create your own effects with readily available latex or eggshell paints, tints and pigments. Traditional techniques include sponging, colorwash, rag-rolling, ragging on, dry-brushing and liming. These methods involve the use of a base coat to cover the Wall or ceiling followed by a glaze or tint applied in various different ways.
Other metal techniques include the hammering into shape of metal (especially wrought iron) which has been softened by heating; and an additive process of constructing a work of sculpture with blobs of molten metal using welding equipment and materials. Both of these techniques are most used for small works since the products are apt to be solid and therefore very heavy for their size.
Photography has redefined the nature of time and motion with continuous recording techniques, by which images are constantly registered from a continuously changing vantage point. Here traditional perspective is restated, vanishing points become straight lines, and the photograph is not made from any discrete place or at any specific time.