I shall try. Firstly, I get all teh cool benefits you describe in your video. Great for creating studio lighting. I want to enhance HDR image lighting.
I load an object. Put in a floor. Make it a matt object. Load an HDR image in the Environtment and change the heading based on how I like it. Boom! Looks like this.
Activate HDR STudio. Clear the sample lighting. Click on the background Icon that lets me load an HDR for the lighting, rotate it the same as in my example. Boom! WTF?
Firstlly, you can see the HDR is now useless as a background, and blowing out the lighting.
I try to adjust the brightness down, but it does not show in the IPR until I do a reload. This is the closest I can get to what Octane was giving me on its own...
I try to adjust the lighting using the HDR Canvas Exposure, but again it doesn't change in IPR. If I do a reload, all the lighting goes.
Understan?