How can i project cubemap from location and play it as a 360 video?

Hi i have a problem with cubemaps. I have figured out that i can’t use .exr as a cubemap, But is there a way to get a 2D texture to receive float3 inputs in the uv channel?

I want to do this because have to run a HDR 360 video as a projection onto geometry from a world location. I have modified the HDRI backdrop to do this, but i can’t make it work with the media player, because .hdr is not supported for that.

.exr are supported so that is why i want to use that instead. If there are any other suggestions on how to do it differently i would love to hear them as well.