Billboard

[big9s]

Could anyone tell me how to make a billboard?Just like the tree in common 3d game.I have tried using *.tga image as texture,but it always comes with a black background colour.

[Hiraghm]

Make sure it's a 32 bit .tga. What program do you use to create the .tga?

I use Aura, and export LW 32-bit tga. I get transparent alpha every time.

[big9s]

Photoshop7.0
I am using Photoshop7.0..
The image is ok when open in Photoshop,but it comes with black
background colour when using it as a texture

[Hiraghm]

In the opengl view, it will be a black background.

if it's black in the final render, you need to save out of photoshop in a 32 bit format. I prefer tga, but I think png might work too.

[Valter]

photoshop 7.0 get a problem with alpha channel.
try export to tiff 32bit or update to 7.0.1 version.

cheers