Tag archives: bugfix

Dolphin Progress Report: October 2016


This month, we have a few very important things to go over before we get to our notable changes, so let's dig right into that.


NVIDIA Vulkan Support Update

Users may remember that we recommended using older versions of the NVIDIA drivers when using Vulkan. Well, this is no longer required as once NVIDIA was aware of the bug, they fixed it in a few minutes and the fix was rolled out in driver version 375.63. Users can now use the latest ...

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Dolphin Progress Report: September 2016


There was apparently some big deal this month about getting every GameCube game to boot. But, the increasingly more amusing part of this new found accuracy is emulating game crashes. When using MMU Enabled + Single Core, it should be impossible for a game to crash Dolphin, but, much more likely to emulate a game crashing in situations where it would on console. As such, booting all games is old news, Dolphin is now onto emulating crashes in all games. One infamous one that didn't work in Dolphin is known as the Gotcha Force "Force 20" game glitch.


Gotcha Force "Force 20" Crash

Though not specially highlighted this month, our applause has to go to aldelero5 for continuing to work on and renovate Dolphin's debugger. With Dolphin's increasingly accurate MMU emulation, it's actually become even more useful to poke at and prod games. They are making it so much easier to research and prod bugs like this to delve even deeper into the game logic!

While that was merged near the beginning of the month, we had another major change merged at the end of the month. Two hours before the progress report was originally scheduled. Dolphin now has another experimental backend, this time using the Vulkan API. Much like D3D12, it should be considered experimental, with a few features still missing from the backend, and many drivers having their own issues with Vulkan.

With that out of the way, let's get onto this month's notable changes!

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Booting the Final GameCube Game


Every single GameCube game can at least boot in Dolphin 5.0. Except one. Star Wars: The Clone Wars and its complex way of using the PowerPC Memory Management Unit rendered it unplayable in Dolphin up to this day. But finally as of Dolphin 5.0-540, this challenge has come and gone: Dolphin can finally boot every single GameCube game in the official library.


Star Wars: The Clone Wars Running in Dolphin


So what makes Star Wars: The Clone Wars so special? To truly understand what's going on, you need to have some knowledge on how the PowerPC's processor handles memory management and how Dolphin emulates it.

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Dolphin Progress Report: August 2016


Dolphin started solely as a GameCube emulator, focused only on the one console. But, when the Wii was released and it was discovered to have hardware almost identical to its older sibling, Dolphin naturally evolved into a GameCube and Wii emulator. All of our readers are probably familiar with this. However, many people don't know that there is yet another console based on the GameCube, one which Dolphin has emulated - the Triforce. An arcade system board developed in a joint partnership between the three powerhouses Namco, Sega, and Nintendo, the Triforce used the GameCube hardware as the heart of many arcade games. Mario Kart GP and GP2, F-Zero AX, along with many other titles headline the Triforce's release library.

This month, Dolphin developers have removed Triforce emulation as one of Dolphin's notable features by removing the ability to use the AM-Baseboard, which was the key to activating Dolphin's Triforce features. After months of discussion, it was determined that while Dolphin should be able to emulate Triforce titles, there simply isn't anyone around to maintain and update the Triforce code. It was implemented in a different time and more or less bruteforces the Triforce games into working in Dolphin without much care into how it fits in and interfaces with the rest of the emulator. A branch still exists that is capable of booting many Triforce games for those interested in playing them.

Developers decided to disable the current triforce emulation with the intent of spurring interest of having efforts toward emulating it revived. Working from a crippled base isn't going to help anyone. The other reason for disabling it is that it has little to no relevance for users: no one is even sure if it could boot any of the triforce games in the condition that it was left in for master.

While Triforce emulation has been disabled, there have been a lot of changes improving the emulation of GameCube and Wii games this month. It's that time again, for the month's notable changes!

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Dolphin Progress Report: June and July 2016


Now that the festivities surrounding the Dolphin 5.0 (and more importantly the feature freeze) are complete, changes have begun to roll into Dolphin once again. While none of the heavy hitters have gotten in just yet, June and July had more than their fair share of merges, regressions, and reverts that make up the typical Dolphin workflow.

It's good to be back!

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Dolphin Progress Report: May 2016


This will likely be the last Progress Report before Dolphin 5.0 is released for one simple reason: we're running out of fixes and notable changes! From here on out, unless some huge bugs are discovered, all we're left with is a few minor regressions and prepwork for the release.

For those wondering why so much care is being taken into Dolphin 5.0's release, look back at Dolphin 4.0's release. It shipped with several huge day one bugs that required 2 hotfix patches to become what people now see as Dolphin 4.0.2. In order to prevent another debacle, all changes are being carefully checked over and tested before and after being merged. We want the highest possible compatibility for our releases, as they are a benchmark for the next wave of development builds until the next release!

For your viewing pleasure, we have a video of an AI being developed for Dolphin fighting its distant ancestor: the Level 9 AI. It turns out an AI built upon all we've learned about Melee in the past 15 years doesn't exactly feel fair to throw at the original AI.


Smashbot vs Level 9 AI

With that, let's get to what is hopefully the last batch of Notable Changes before the 5.0 release!

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Dolphin Progress Report: April 2016


Things have slowed down, but, that's a good thing. As we hopefully enter the final days of the 4.0 era, there are simply less changes being merged. Dolphin is under a feature freeze, and with few bugs remaining, developers have become exceedingly picky about what can be safely merged into the emulator. So we apologize for the lack of updates, but we promise it will be worth it. To make up for the lack of content, here's another weird game we sent to JMC47 in order to torment him. Enjoy that along with this month's notable changes.


Sesame Street: Cookie's Counting Carnival

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Dolphin Progress Report: March 2016


It's April Fool's day which means that the internet is full of fake articles, products, videos, and images meant to fool users into thinking they're real. We decided to do things a little differently here at the Dolphin Blog, instead of making the users our fool, we decided it would be JMC47. See, JMC47 has been going through the trouble of getting as many games possible to gain a stranglehold on the issue tracker/wiki help with testing and issue verification. In the past, he's made videos of the games he's come across upon his own will, which led to videos like the one on Speed Racer. delroth ended up finding a game so spectacularly weird that JMC47 not only had to play it, he had to record his experience. Welcome to Gummy Bears MiniGolf presented in glorious 1080p HD!


Gummy Bears Minigolf

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Dolphin Progress Report: February 2016


Another month rolls by and now the feature freeze is starting to take a toll on the new features. Aside from Android and D3D12 development, which have an exception from the feature freeze, most of the changes this month were either relatively small or involved Dolphin 5.0 blocker bugs. Progress on the eventual Dolphin 5.0 release is very promising, with over half of the remaining blocking issues with fixes pending! While there is still quite a bit of work to do, we hope this month's notable changes, featuring some oft requested tweaks, will tide people over until the feature freeze is over.

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Dolphin Progress Report: January 2016


With Dolphin in the thick of the 5.0 feature freeze, things were expected to slowdown a bit. Some of us were worried there wouldn't even be enough content for a Progress Report! Alas, while the gears have shifted toward different things to prepare for a release, there is no shortage of interesting changes. As an added bonus a feature implemented three years ago was rediscovered! That kind of thing just seems to happen over the course of a project.

Work toward Dolphin 5.0 has continued; but, a lot of these cleanups have come at a cost. There have been some noteworthy regressions (notably with netplay) and through testing we've noticed some broken features that have been working incorrectly for some time. As Dolphin approaches its next release, we hope that users will continue to update to the latest dev builds and test for regressions and issues so they can be caught before 5.0 is in everyone's hands.

Something to notice about this Progress Report is that we heavily leaned on Dolphin's FIFOCI infrastructure for screenshots and examples. These images were automatically generated on a server without user interaction and were taken from the exact same frame of instructions sent to the emulated GameCube/Wii GPU. Of course, FIFOCI is limited to graphical bugs, and certain graphical bugs at that. Without FIFOCI, it's possible that these changes would not exist, or if they did, there wouldn't be an easy way to verify what they fixed. In the case of the Wrap Negative Indirect Texture Coordinates, it was developed as a fix for F-Zero GX, but FIFOCI discovered it also affected Skyward Sword.

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