HDRI & Animation

ravenzvideo

Hi, Is it possible in Daz3d to make an HDRI animation where the camera moves slowly without the 3d objects in the scene looking as if they are floating off in the wrong direction?

Gordig

HDRIs are relative to the camera, so any camera movement is going to change how the HDRI looks. It is theoretically possible to create an animated HDRI and track the camera motion, but none of that is possible within DS.

WendyLuvsCatz

only rotating the camera on all axis,

it is fixed in one point but you can rotate it as much as you like

ravenzvideo

Thanks for the answer.  I was driving myself crazy because I thought if I chose the right focal length for the camera in Daz Studio it would all match up perfectly.

Wendy, thanks for saying it so well.  I understand!  ps. your cat avatar is very cute. It is fun to look at.

Gordig, are you referring to compositing in After Effects as a solution for correct HDRI Tracking Animation?  

Gordig

To be clear, what I'm talking about is a very high-level solution that, even if you had both the equipment and the know-how to pull it off, probably wouldn't be worth the effort compared to just using some geometry in the scene.

WendyLuvsCatz

it is possible to zoom in 3Delight and Octane but not in iray if your HDRi is on a physical dome, translation to an extent too

in 3Delight an Uberenvironment dome is actual geometry or you can use an image mapped to a big sphere with cast shadows disabled and  it stays in one place so some limited zooming and movement is doable.

This is also doable in Octane render if you make the geometry sphere an Octane object and disable shadows

I say some because too much it becomes obvious the background is a big textured sphere

same with a big plane or cyclorama as a background

iray cannot have shadows disabled on objects and an iray dome is not actual geometry so you cannot do this.

Gordig

To make an animated camera move with an HDRI work in DS, you'd probably have to use a script to make dome rotation animatable. 

ravenzvideo

Thanks for the insight into this sort of a brain teaser problem.  

Gordig, some geometry in the scene seems the best solution at my level of skill.  Thanks for putting it so clear.

Wendy, I know what you mean and I understand even better my options.  Thank you.

On the blender forum, they mention accompanying backplates (backgrounds) that come with some HDRI sets.  They could be used to help make the parallax effect when the camera tracks along with some geometry.