Have you tried your original code with tga?

@Emre, for commercial projects I completely agree for not taking the risks. I did some searching by the way and found some ways how you can show tga files as a icon (/thumbnail) in windows folders. I have not tried it myself yet so scan it before trying it ofcourse but it looks legit:

seems totally free http://www.zbrushcentral.com/showthread....-thumbnails!!!!

only free trial -> http://mysticcoder.net/mysticthumbs.html

@DLively, not yet. But it is worth checking it out, since I still seem to get the error cause of the shadow/png file or code.

png can cause troubles, simply don't use it. tga or dds DXT5 are fine. I had problems with shadow_stencil = 2 (bad shadows if camera goes into shadow volume), so I used only with 1.

Oh I will use tga than. But how can one save tga will alpha channels? I am trying it both in photoshop as tga 32 (I cannot mark the alpha channel in Photoshop on), and in paint shop pro (9) as tga 24, both give pic without alpha channel. I am trying with both new transparant images aswell as the png ones.

in photoshop there is a checkbox in the save dialog for saving with alpha as 32b, but if you open a 32b png it definitely will save as 32b tga, and you can add an alpha channel too if it does not exists. but I use a very old version...

you can do it with Gimp too, but Gimp does not load/save colour data for fully transparent pixels in case of png files...

Ah I got it working in photoshop. Apperently, you have to manually add a alpha layer even when you started with an transparent image or a transparant png file.

http://www.youtube.com/watch?v=LebQpPAxfQ0