You can select one of the following projections for the selected surfaces:

Planar—To use on a flat, uncomplicated object or surface. The map drops over the entire applied area. You can use a projection-based method to map a single material across multiple surfaces. The projection is based on a coordinate system parallel to the screen. To map surfaces for a specific rendering view, create the required rendering view and map the view with a planar projection. Render the model to create the image. You can also select a coordinate system to orient the texture along the z-axis.

Cylindrical—To use on rounded objects or surfaces. By default, the map is oriented relative to the screen coordinate system. You can orient the map to a user-defined coordinate system. For best results, orient the coordinate system such that the y-axis points along the axis of the cylindrical shape.

Spherical—To use on spherical objects or surfaces. By default, the map is oriented relative to the screen coordinate system. You can orient the map to a user-defined coordinate system. For best results, orient the coordinate system such that the y-axis points along the axis of the spherical shape.

Box—To use on objects where you want to apply textures from all six sides. Using planar projection, Box mapping projects UV parameters of a box face that faces the object surface. The U value is the X coordinate, V value is the Y coordinate, and the Z coordinate is ignored. The face of the box that has the largest U and V values at a point is chosen for the planar projection. The box is oriented according to the coordinate system of a model or face. The box can be reoriented using settings similar to planar mapping.

Parametric—To use on surfaces in your model that you can map individually with a material. This method maps according to the u-v coordinates of a surface. An easy way to tell if Parametric will work well for a surface is to examine its mesh lines. If a surface has regular mesh lines, then Parametric may be a good mapping method. Parametric mapping maps a complete copy of the material map onto each surface. If you have selected multiple surfaces, each surface is mapped independently with the complete material map.