标签存档:D3D

The New Era of Video Backends: The Unification of VideoCommon

It's not common for a rewrite to be something that warrants an article, but, this is one of the exceptions. Over the past few years, parts of Dolphin's video core have seen renovations to make way for new features, but a fundamental problem remained. Dolphin's video backends suffered from both having too many unique features while also duplicating tons of code from the other backends, making it difficult to add new features and maintain old ones.

Those that have followed Dolphin from the very beginning may remember that its video backends ...

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D3D9: Why It's Not a Part of Dolphin's Future

D3D9: Why It's Not a Part of Dolphin's Future

As many people have noticed, revision 4.0-155 removed D3D9 as a video backend, leaving D3D11 and OpenGL as the sole hardware backends in Dolphin. For the longest time, D3D9 was considered Dolphin’s fastest backend and was a favorite of Windows users. But then, why would it be removed?

While it was enjoyed by users, it was a source of endless frustration for the developers. D3D9 is inherently flawed, and working around its problems wasted time and slowed development. With D3D9 removed, the developers can focus their effort on making the emulator better instead of pandering to the ever growing demands of a flawed backend. This is why the D3D9 backend was removed.

D3D9: Inherently Flawed

Dolphin's D3D9 backend was mostly known for its speed. On AMD and Integrated Graphics cards, it is by far the fastest backend. But Direct3D9 is very old; it was released in 2001 and received its last update in 2004. Its age means that many modern features are simply not available for it, features that Dolphin needs for GameCube and Wii emulation. And that's where its speed came from. The D3D9 backend was as fast as it was because it simply didn't emulate certain effects. All kinds of modern functions are simply not possible in D3D9.

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