Which cards can RedenFlow use?

On Windows, NVIDIA cards. On a Mac, the graphics built into any Apple Silicon chip, meaning anything from the M1 onwards, with nothing to set up. AMD and Intel graphics are not used for training, so on those machines everything runs on the processor.

Do I have to buy a graphics card?

No. RedenFlow works without one. Labelling, smart selection and export are all fine. Training is the part that takes longer.

I updated the driver and nothing changed.

Restart the computer, then press Check again. A driver installed without a restart is often not in use yet. If it still says the same thing afterwards, write to us and include everything the Account screen shows, including the AI engine line.

Why does my Mac not offer any of this?

Because there is nothing to offer. Apple Silicon graphics are used automatically and there has never been a driver to install. Intel Macs have no graphics acceleration RedenFlow can use, and no download changes that.

RedenFlow help

Your graphics card is not being used

RedenFlow noticed that the graphics card in your computer is sitting there unused. Nothing is broken. Everything still works, it is just far slower than it needs to be, and it usually takes a few minutes to fix.

Training a model is exactly the kind of arithmetic a graphics card is built for. On the processor alone, a job that would take twenty minutes can take four hours. That is the whole difference.

There are two reasons a card goes unused. They look almost identical from the outside and have nothing in common, so start from the sentence RedenFlow actually showed you.

It saidYour graphics card is not being usedYour copy of RedenFlow is out of date It saidYour graphics card is installed but not being usedYour graphics driver needs updating

Your copy of RedenFlow is out of date

Older versions of RedenFlow for Windows were built without graphics support inside them. They could not use a graphics card at all, whatever was installed on the machine. Current versions can.

What to do

Open Account from the profile icon.
Press Check for updates.
Install the update it offers. Your projects, your images and your trained models are not touched by this.
Start RedenFlow again, return to Account, and press Check again.

It should now say your graphics card is doing the work, and name the card. If it does, you are finished.

If it says you are already up to date

Then the version carrying graphics support has not been published for your platform yet. Write to info@redenflow.com and tell us which version you are running. It is on the same Account screen.

Your graphics driver needs updating

RedenFlow can use your card, but the driver on the machine is missing or older than it needs. This is by far the more common of the two, and it is not really about RedenFlow: the same machine will be slow in anything that leans on a graphics card.

What to do

Go to NVIDIA's driver download page.
Choose your card from the lists. RedenFlow prints its exact name on the Account screen next to Graphics, so you can copy it from there.
Download the driver and run it. Take the express or recommended option if you are offered a choice.
Restart the computer when it asks you to.
Open RedenFlow, go to Account, and press Check again.

You do not need the CUDA Toolkit. If you have read elsewhere that CUDA must be installed for software like this, that advice does not apply here. The Toolkit is a large package for people writing this kind of software rather than using it. RedenFlow already carries everything it needs. The driver is the only piece that comes from NVIDIA.

What the Account screen is telling you

If it says	It means
Your graphics card is doing the work	Everything is as it should be. Nothing to do.
Your Mac's graphics are doing the work	Apple Silicon acceleration is on. Nothing to install, and there is no driver to update on a Mac.
Your graphics card is installed but not being used	The driver. See above.
Your graphics card is not being used	The copy of RedenFlow. See above.
Training will use the processor	There is no graphics card here that RedenFlow can use. Everything works, larger jobs simply take longer, and nothing you install will change it.

Questions people ask

Which cards can RedenFlow use?: On Windows, NVIDIA cards. On a Mac, the graphics built into any Apple Silicon chip, meaning anything from the M1 onwards, with nothing to set up. AMD and Intel graphics are not used for training, so on those machines everything runs on the processor.
Do I have to buy a graphics card?: No. RedenFlow works without one. Labelling, smart selection and export are all fine. Training is the part that takes longer.
I updated the driver and nothing changed.: Restart the computer, then press Check again. A driver installed without a restart is often not in use yet. If it still says the same thing afterwards, write to us and include everything the Account screen shows, including the AI engine line.
Why does my Mac not offer any of this?: Because there is nothing to offer. Apple Silicon graphics are used automatically and there has never been a driver to install. Intel Macs have no graphics acceleration RedenFlow can use, and no download changes that.

Still stuck? Write to info@redenflow.com and paste what the Account screen shows. Every line of it is useful to us. You can also download the latest version.