PRG Mbox Designer Manual 3.9 - Manual (Page 149)

MBOX ® MEDIA SERVER USER MANUAL 141
By editing the X and Y coordinates of the triangle strip, you can create differently sized triangles. Editing the tX and tY
coordinates adjusts the texture mapping to the vertices of the screen object. Textures will be stretched as required to
match the coordinates, be careful, otherwise your texture may be distorted! The + and - buttons allow you to add or
delete individual vertices to as to create shapes that are not four-sided.
Triangle Fan screen objects are similar to triangle strip objects, but the ordering of the vertices is different and the
origin is used as one point in every triangle. The same screen object from the illustrations above becomes far more
complex when converted into a triangle fan. Instead of being two triangles, the object is now four triangles. Each
triangle is made up of the first vertex and two other adjacent vertices.
In this manner you can make an object with radial symmetry and with enough vertices to smooth the curve, create an
arc or circle.