Compatibility Issues: Difference between revisions

'''Affects:''' Most recent versions of Windows

'''Description:''' LEGO Island was written around a very old version of DirectDraw, including a [[Direct3D Retained Mode|retained mode API]] (D3DRM) that is not only unsupported now, it's also been dropped from Windows/DirectX entirely. Many of its DirectDraw function calls are obsolete, deprecated and/or completely abandoned now. There is one specific case, on some XP computers (around the time of Vista-compatible stickers) AUTORUN.EXE, and ISLE.EXE are shown as non-compatible Win32 applications, and will refuse to run (has not been tested with Rebuilder, that might fix it).

 

* Change to one of the software modes (RGB Emulation, MMX Emulation, or - [[#Textures are heavily glitched|if using a version older than Windows 10 1809]] - Ramp Emulation) in the LEGO Island configuration. These use CPU/software rather than GPU/hardware (theoretically slower, but imperceptible on modern PCs), so hardware/DirectX API differences aren't so impactful.

* Use "Direct3D HAL" with [[dgVoodoo]] installed. dgVoodoo wraps several old DirectX API calls to modern DirectX 11 calls, fixing a huge amount of compatibility issues with modern software and hardware.

* Use "RGB Emulation" or "MMX Emulation". These modes are unaffected.

* Use "Direct3D HAL" with [[dgVoodoo]] (full screen only). Direct3D HAL is unaffected in general, but it has its own [[#General instability, graphical glitches, driving scenes unplayable, etc.|compatibility issues]] on Windows 10+ without using [[dgVoodoo]].