Add-on for rotate the HDRI map using a hotkey. Works in Eevee and Cycles, you can use the HDRI from the Material Preview mode or operate with the nodes. Holding down the Ctrl + Alt + Left Mouse Button, move the mouse left or right for turn. Hotkey can be changed in the add-on settings.
I also found a problem with rotation and the mapping node attributes in Blender 2.81. The z-rotation is changed from .rotation[2] in 2.80 to .inputs[2].default_value[2] in 2.81.
Btw, why it stops at 180 degrees? Maybe there’s a way to seamlessly reset it to -180 and vise versa, so there will be not visible stumbling and user could spin the hell out of it?
+1 for the seamless rotation. I hope you find solution for this great addon should be default blender behavior like it is in unreal, marmoset and substance painter.
edit: I was doodling with my new startup node setup and find out that somehow rotate hdri started to work with seamless rotation. I don’t know how or why but here’s my node setup for you to inspect.
Edit - nevermind about the “error” I got. Note to self (and others) - don’t change the addon’s folder name.
@fiendish55 - the addon (prior to v1.1) seems to work the way you want (seamless rotation) if you create an hdri node setup for your world. I frequently use Blender’s included hdris to set up a custom node tree for the world, so that I can set a black background, but get the reflections from the hdri. Whenever I do that, I can rotate the environment as much as I want using the addon.
Well, now it works in all cases, so thanks again, Mephist0!
If error messages don’t appear it is difficult to understand what is happening, I can suggest trying to install the addon on a completely clean profile.