![how to speed up citra emulator mac how to speed up citra emulator mac](https://tellaspoy.weebly.com/uploads/1/2/5/2/125297878/900730872.jpg)
- HOW TO SPEED UP CITRA EMULATOR MAC DRIVERS
- HOW TO SPEED UP CITRA EMULATOR MAC SOFTWARE
- HOW TO SPEED UP CITRA EMULATOR MAC CODE
- HOW TO SPEED UP CITRA EMULATOR MAC PC
- HOW TO SPEED UP CITRA EMULATOR MAC MAC
HOW TO SPEED UP CITRA EMULATOR MAC PC
This works great for PC games, where you know all the textures you want to upload ahead of time and can send them in one large batch, but ends up hurting performance for Citra since we can’t know in advance when the emulated game will do something that requires a texture upload. The communication between CPU and GPU is optimized for large amounts of data transferred, but as a tradeoff, it’s not very fast. This is called a texture upload, and it’s slow for a good reason. Whenever a texture is used in the hardware renderer, the hardware renderer will try to use a copy of the texture already in the GPU memory, but if that fails, it has to reload the texture from the emulated 3DS memory. Writing that missing method fixed upscaling while making the game much faster Metroid: Samus Returns heavily used a PICA200 feature that had a comment // TODO: implement this in the hardware renderer
HOW TO SPEED UP CITRA EMULATOR MAC CODE
The new texture forwarding code increases the speed of many games, and fixes upscaled rendering in some other games as well. Their first major contribution was a massive, complete rewrite of the texture forwarding support that was added back in 2016. We traced it back to how textures were juggled between the 3DS memory and the host GPU, but we don’t have many developers that use Mac, so we never did find the root cause.įor a little bit of good news, this is fixed in the latest nightly, but only because the entire texture handling code was rewritten! Moving Forward with the Hardware Renderer: Cleaning up Texture Forwardingĭespite the issues mentioned above, OpenGL has been a fair choice for a hardware renderer, and phantom has been hard at work improving the renderer.
HOW TO SPEED UP CITRA EMULATOR MAC MAC
In the linked issue, only on Mac OSX, Citra would leak memory from the hardware renderer.
![how to speed up citra emulator mac how to speed up citra emulator mac](https://www.xda-developers.com/files/2019/03/Screenshot_2019-03-04-08-37-17-898_org.citra_.citra_android.png)
This means performance and features can vary widely between operating systems, graphics driver, and the physical graphics card.Īs you might have guessed, this leads to some OS specific bugs that are very hard to track down.
HOW TO SPEED UP CITRA EMULATOR MAC DRIVERS
OpenGL is also great for emulator developers because it’s a cross-platform standard for graphics, with support for all major desktop platforms.īut because OpenGL is just a specification, every vendor is left up to their own to make their drivers support the specification for every individual platform. The infamous Pokémon outlines bug was one such example of something that OpenGL just doesn’t handle well This leads to cases where sometimes we just have to live with minor inaccuracies as a tradeoff for speed. That said, we tend to run into edge cases that the PICA200 supports, but frankly, OpenGL is not well suited to support.
![how to speed up citra emulator mac how to speed up citra emulator mac](https://i.ytimg.com/vi/x3YoQh2h69o/mqdefault.jpg)
Whenever the tasks the PICA200 can perform matches up with tasks you can do on a GPU using OpenGL, everything is fast and everyone is happy! For a hardware renderer, Citra isn’t using the GPU much!Īs a general rule of thumb, CPUs are fast at computing general tasks, while GPUs are blazing fast at computing very specific tasks. The green shaded portions are what Citra emulates using the GPU. To understand why, we need to dive a little deeper into the difference between CPUs and modern GPUs. Challenges in the Hardware RendererĮarlier it was stated that the OpenGL hardware renderer was emulating the PICA200 by using the GPU instead of the CPU, and … that’s only partially true.Īs it stands, only a portion of the PICA200 emulation is running on the GPU most of it is running on the CPU!
HOW TO SPEED UP CITRA EMULATOR MAC SOFTWARE
However, it’s not all sunshine and daisies there’s always tradeoffs in software development. On the other hand, the second video is using the OpenGL hardware renderer, which emulates the PICA200 by using your computer’s GPU.įrom those videos, using your GPU to emulate the 3DS GPU is the clear winner when it comes to speed! The first video is showing off the software renderer, which emulates the PICA200 by using your computer’s CPU. The speed difference boils down to how the 3DS GPU is being emulated. Why is there such a major difference in speed from the first and the second video? Good thing that shield flashing bug still isn’t around