[OpenGL 3, Render Mode 5] UV texture mapping should be used for Glitter Material

[nilsschmidt1337]

This is how the material looks like:

The following MATERIAL definitions are official:

GLITTER VALUE v [ALPHA a] [LUMINANCE l] FRACTION f VFRACTION vf SIZE s | MINSIZE min MAXSIZE max
SPECKLE VALUE v [ALPHA a] [LUMINANCE l] FRACTION f SIZE s | MINSIZE min MAXSIZE max

GLITTER is used to specify a color that includes glitter mixed into the transparent plastic. Individual glitter grains are assumed to be flat squares, with arbitrary orientation.
SPECKLE is used to specify a color that has a speckled pattern of an alternate color on its surface. Individual speckle grains are assumed to be roughly round.

FRACTION f is the portion of the surface that uses the alternate color, expressed as a decimal number greater than 0.0 and less than 1.0.
VFRACTION vf is the portion of the volume that uses the alternate color, expressed as a decimal number greater than 0.0 and less than 1.0. Renderers that support volume rendering will use this value instead of the FRACTION value.
SIZE is the size of each speckle/glitter grain, in LDraw units. It must be greater than 0. This is mutually exclusive with MINSIZE and MAXSIZE.
MINSIZE and MAXSIZE provide a range of sizes for grains, in LDraw units. If either of these is specified, both must be specified, and they are mutually exclusive with SIZE.

Here is an example usage of GLITTER:

0 !COLOUR Glitter_Trans_Dark_Pink CODE 114 VALUE #DF6695 EDGE #B9275F ALPHA 128 MATERIAL GLITTER VALUE #B92790 FRACTION 0.17 VFRACTION 0.2 SIZE 1