problem with EAAM_ALPHA_TO_COVERAGE

[kaliber]

i have a png transparent texture, and im using EMT_TRANSPARENT_ALPHA_CHANNEL_REF as the Material type.
after im change the antialias in the device creationparameter, and set the material antialiasing to EAAM_ALPHA_TO_COVERAGE

on my AMD Graphic card all fine, but when i test it on Nvidia :

the mesh become solid. the transparent area become just black, just like im not using a transparent texture.

any idea, what should i do ???

[hybrid]

Maybe some color format incompatibility. Could you please provide a test case for this so we can add it to our test suite and try to find a workaround?

[kaliber]

OK here it is
http://dl.dropbox.com/u/69618949/BUGTest.zip

[hybrid]

Ok, thanks for the test. Works here under Intel gfx card as well. Don't have nvidia to test, but I'll add this to the test suite and maybe someone else can test it.

[kaliber]

ok , thanks.