Order-Independent Transparency

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Depth sorting alpha blended objects
http://blogs.msdn.com/b/shawnhar/archive/2009/02/18/depth-sorting-alpha-blended-objects.aspx

Order Independent Transparency with Dual Depth Peeling
http://developer.download.nvidia.com/SDK/10/opengl/src/dual_depth_peeling/doc/DualDepthPeeling.pdf

Interactive Order-Independent Transparency
http://developer.nvidia.com/object/Interactive_Order_Transparency.html

Alpha blending without sorting
http://www.gamedev.net/community/forums/topic.asp?topic_id=405755

Depth-sort based Alpha Blending
http://www.opengpu.org/bbs/archiver/?tid-422.html

Sort-Indenpency Alpha Blending
http://0rz.tw/DSYnW

Order-indenpendent transparency
http://www.wolfgang-engel.info/blogs/?p=96

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