How do I see environmental HDRI lighting in the viewport?
Upirium
Posts: 722
I am trying to relearn Daz, but I don't really understand any of it. I have Revolution HDRI Lights and I can't seem to figure out how they work. I think they are rendering right but I'm not sure. I just have to go in blind it seems like. I don't know what the lighting is going to look like until I render it.
When I select a light preset nothing in the viewport changes. So I don't know if I like the way the light looks or not. I saw somewhere you needed to change your viewport to 'IRAY' if that's the setting you're using but I tried to do that in th draw settings and then my figure lost all of its textures until I put it back to texture shaded. So I STILL don't have an idea of what the light's going to look like until I render it. What am I missing here?

Comments
Sorry, should have read the last part. I was going to suggest setting the Draw Mode to IRay.
It will stay white until it renders and that can take quite a while and lock up your computer
thats why there is an auxiliary viewport you can set very tiny
The Iray preview is the way to go. Make sure you have Dome and Scene, or Dome only in Render Settings->Environment and then Draw Dome ON. Your system will take a few seconds (okay maybe 10-20 depending on how complex it is) for the textures to be loaded into the GPU. Then you will see something in the preview.
You usually set the preview mode using the sphere icon at top-right of the Viewport, next to the camera picker. The Iray preview will sit for a bit in Smooth Shaded mode as it is uploading the scene to Iray.
Some us love this: https://www.daz3d.com/ibl-master-for-daz-studio/

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Wait... Does this work for HDRI, or just JPEG?
IBL Master is awesome. It works for HDMI but you still need to render to see how it looks. However, It makes it much faster to set up the HDRI placement. When you apply an HDRI to the render settings, it places the image on the ball so you can aim the sun just by rotating the ball. It will also let you enhance the sun with mesh lights that are easy to position to the same spot as the sun by moving the disks that are attached to the ball. One of its other great features is it adds a fake light to the scene to light up the viewport when the camera head lamp is turned off.
Wow! I had no idea. I'll pick this up ASAP. Thanks!
Only reason why I still didn't pick up IBL Master: it's really a 3Delight product, with two features (seeing and rotating the HDRI in a non-iRay viewport) that's actually useful for iRay. And for just those feature, it is a bit pricey. At least, for me it is. For someone who uses iRay professionally, just those two features make a huge difference in the speed of their workflow and thus the amount of renders they could push out on a daily basis. And yes, then those 30 bucks are definitely worth it.