The geometry files consist mainly of the nodes and elements in a triangular mesh and is in the following format.
VTE 1.4 ASCII
GEOMETRY triangular_mesh
GEOMETRY_COLORS 1
0.55 0.6 0.833 1
GEOMETRY_COLORS_END
NODES 3
1 0 0 1
0 1 0 1
0 0 1 1
NODES_END
CELLS 1
1 2 3
CELLS_END
GEOMETRY_END
In the geometry colors section the 4 numbers range from 0 to 1 and are thus:
Red Green Blue Transparency
It is possible to have as many colors as you wish.
The numbers under nodes are in the following format:
X Position Y Position Z Position Color Number
The numbers under cells refers to the node number.