Is there a way to rotate the hdri without affecting the lightning it gives?

Illidanstorm

Can this product maybe help with this https://www.daz3d.com/ibl-master-for-daz-studio ? or is there another way?

30 dollar isn't cheap so I better ask

barbult

Not if you use the HDRI to provide both the lighting and the background (Dome ON) when you render in Iray. The HDRI lighting and the rendered dome background are controlled by the same rotation values.

You could kludge this with two renders. First render with Dome ON and all of your scene objects turned off, so you render only the HDRI dome. Then use that render as a backdrop image in the Environment pane (not Environment section of Render Settings) during a second render, The second render should have all of your scene objects visible and Dome OFF. In the second render, you can rotate the HDRI to make the lighting come from a different direction. But then the background lighting direction/shadows will not match the lighting direction/shadows on your rendered scene objects.

I don't think IBL Master will help you separate lighting and background rotation.

The Diigitals

barbult said:

Not if you use the HDRI to provide both the lighting and the background (Dome ON) when you render in Iray. The HDRI lighting and the rendered dome background are controlled by the same rotation values.

You could kludge this with two renders. First render with Dome ON and all of your scene objects turned off, so you render only the HDRI dome. Then use that render as a backdrop image in the Environment pane (not Environment section of Render Settings) during a second render, The second render should have all of your scene objects visible and Dome OFF. In the second render, you can rotate the HDRI to make the lighting come from a different direction. But then the background lighting direction/shadows will not match the lighting direction/shadows on your rendered scene objects.

I don't think IBL Master will help you separate lighting and background rotation.

I second what Barbult says excpet rather than set it as the backdrop, I would do one render with no back ground and then one render of nothing but the HDRI rotated as you like (hide all figures and props) then combine the two.