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I am using Blender 2.83 and want to create a scene with a lot of fog, so I've been using the Mist pass. However, this makes the HDRi invisible. Is this a limitation of the Mist pass or are my settings wrong?

These are my mist pass settings:

enter image description here

And my compositor looks like this: enter image description here

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The mist pass effectively fades out your scene the further it is from the camera (ie, the more ‘mist’ that light ray has had to travel through). The HDRI by its very nature is out at an infinite distance and, therefore, is completely obscured by the mist.

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  • $\begingroup$ But it can be mixed with the render layer to a lower value in the compositor, so that the HDR shows. $\endgroup$ – susu Jun 15 '20 at 1:06
  • $\begingroup$ @susu Quite right. Actually, to allow the HDRI to show through you could add a Maths node to Multiply the 0.0->1.0 range of the Mist by a fractional number (eg 0.8) to limit the amount of mist. Or use a Minimum maths node to limit the maximum mist, depending on the desired results. $\endgroup$ – Rich Sedman Jun 15 '20 at 8:51

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