: The commercial demo versions of SwiftShader 2.0 and 3.0 intentionally included a logo/watermark
The official demo and older free versions of SwiftShader 3.0 often included a translucent logo (watermark) in the corner of the screen during gameplay. To obtain a version without this watermark:
SwiftShader is a high-performance CPU-based software renderer developed by TransGaming (now owned by Google). The "watermark" appeared in the commercial trial versions of SwiftShader 3.0 to encourage users to purchase a license for the production software. How to Get a Version Without a Watermark