In Blender 3.3+ (my version. might be previous versions too) to add a driver right click on rotation y in transform menu. Click 'Add driver'

Choose Drivers editor as the view for the left of the screen (instead of Graph Editor)

The new driver will appear on the left of the driver editor. Rest of steps are the same

In Blender 3.3+ you have to update the Owner space of a ball in constraints. Change it to 'Custom Space' and set object to Cube

why not just use the empty to move and scale the ball, and use the ball itself for rotation without the need for drivers at all???

Can I edit my own comments? If your variable has a different name than rotation_euler, use that. The name is not important. Just check that the name under "Add input variable" is the same as in the expression.

Select the empty square. Get the sidebar with N, Select the Item Tab and right click with your mouse on Rotation Y. Choose "Copy as new driver". Then select the empty cross. Right Click on Rotation Y. Select "Copy driver". Right click again and select "Edit Driver". Change Type to Scripted Expression. In the field unter "Expression:" enter "- rotation_euler" (put a - sign in front of it). Thats it. You're done.

Now in Blender (I've got 2.91.2) is the driver stuff much simpler.

I tried a 3 vector version with the imlementation of X e Z but I did something wrong. So I found a different solution of this exercise not "driver driven": add a "maintain volume" to the ball and parent the ball with a Lattice object (standard parenting). But I know there is another tut next using bones, so I will continue learning. Thanks for this amazing tutorials even if the version is old! The principles and mechanism is what it matters to me.

It seems absolutely ridiculous for me paying a premium to have ease of access for information but I just spent an hour on YouTube and Google (free resources) researching about Drivers and the Graph Mode to even see if I can still access Drivers from the graph editor with all the new UI changes. I'm a beginner, I'm completely blind if these Graph mode and Driver stuff is common sense or not as I gain experience but I can't even get the new Graph mode in 2.8 to show Drivers. Is it not necessary anymore? I have no idea.

It seems to make the Blender team disorganized and unprofessional. This may seem like a small complaint but if Blender really wants to be taken seriously by industry professionals and become a competitor to other companies this stuff needs to stop. Why is the Blender fundamentals course outdated and the NEW course entirely up on YouTube for free? I don't mind that it's on YouTube but why has it not even replaced the old course here on the PREMIUM section. It just makes me feel like I'm wasting my money if you guys don't quality check this stuff. Absolutely fucking ridiculous.

Edit: After unnecessary suffering I figured out that they're separate now, nice

Hi, I'm new to Blender. I am using Blender 2.80. I am not able to add drivers. It's not working as you said in the tutorial. It's on Y rotation of Empty Plain Axis. It says Invalid Python Expression. What should I do?

Hello, I'm new to Blender Cloud. How do I bookmark my place in the videos to come back on a another device?

Why not directly add a driver to the Y rotation of the ball? It functions the same in this case.

uiiiiii :D

im on blender 2.79 and when i hit to enter the driver the options are different. i tried all of them, and the cursor changes to an eyedropper tool... whatever i picked doesnt turn to purple and not showing in the drivers tab :(

Hey, I got to the part of making the square the balls parent but when I go to scale the square on the z-axes the ball does squishes but the ball keeps squishing past the so the ball is on the outside of the square, but it stay's inside on the top and bottom. What should I do?

The ball no longer seems to do the "Squash and Stretch" scaling inside the Parent Cube. At least, it isn't for me.

I love the option "Image" you can give this boring empty any image you like, helps to keep things interesting.

A little more explanation of counter animation would be helpful (why is that important, use of).