http://bugs.winehq.org/show_bug.cgi?id=13565
--- Comment #18 from Maxym Kit kitmaxter@gmail.com 2010-05-30 16:17:29 --- Created an attachment (id=28437) --> (http://bugs.winehq.org/attachment.cgi?id=28437) SW vertex blending
Indeed this patch helps. I updated it to current wine-1.2-rc2.