Now that I see what caused it, it's understandable. I had it referencing a file name that didn't even exist.
I finally got a system worked out for making these 3D ships.
- 36 framed linear tweened rotational animation in blender rendered as PNG. First keyframe is 10deg, last is 360deg. Background color set to one not on the ship. Anti aliasing OFF
- 36 PNG files are generated in a tmp folder. I use Game Maker 8's or GIF Movie Gears strip generating tool to merge them together.
- Using Paint.net, I slightly increase the brightness to make all zero'd black areas a lighter shade that wont turn transparent, and then finally recolor the background to black.
- After adjustments, the file is saved as an 8-bit BMP
End result:
