Quote:
A compact image element encoding format selectively allocates a bit field within the format to alternately encode either multi-bit alpha resolution or increased color resolution. This encoding technique may be advantageously used to allocate encoding bits to model semi-transparency while using those same bits for other purposes (e.g., higher color resolution) in instances where semi-transparency is not required (e.g., for opaque image elements). In one advantageous embodiment, the same encoding format can provide either RGB5 or RGB4A3, on an image-element-by-image-element basis. Applications include but are not limited to texture mapping in a 3D computer graphics system such as a home video game system or a personal computer.
What is claimed is:
1. A texture map including: a first texel encoded with a semi-transparency value and having first color resolution; and a second texel encoded without any semi-transparency value and having second color resolution greater than said first color resolution.
2. A texture map as in claim 1 wherein said first and second texels each further include a flag indicating whether said texel is encoded with a multi-bit semi-transparency value.
3. A method of generating a cutout image within a 3D graphics system having a 3D graphics pipeline that generates images based on polygons, said graphics pipeline including a texture mapping unit storing a texture map including a first set of semi-transparent colored texels, and a second set of opaque, colored texels, said method comprising: encoding each of said texels in a variable bit encoding format wherein a predetermined bit field within said format is allocated to encode semi-transparency of said first set of texels, and said predetermined bit field is allocated to encode coloration of said second set of texels; applying said texel encoding as a matte to a polygon using at least one alpha operation, to generate a set of image elements; and anti-aliasing said image elements.
anyways, guys think this might be those holographic glasses things or something that Penny Arcade was talking about right before E3 2003? they seems to be positive that they were being made down at Nintendo.