in the future I would be very grateful for native corona HDRI loader with basic color adjustments (exposure, hue, saturation),
but mainly LINKED with the sun rotation. Sun can be turned off, still will work as a helper for this rotation.
just the same like using the VRAY HDRI map, it is nicely that you can turn the HDRI by angular (U direction).
But you cannot get “the horizon higher”(read move up or down), only rotate (V direction).
I do not know if it technically would be possible to only get “angular rotation” on the U direction and “metric moving” on the V direction.
But if so I would love it. Especially (for interior scenes) to get more control over the position of where the sun (of HDRI) is shining on floors/walls. (In case you lit your scene only with HDRI)
Yes, we have own wired “sun rig”, exactly like you wrote, but why not do is clean and Corona native?
I understand, Corona cant be able to do everything, but I still think that good and user friendly HDRI lighting could be one of primary features modern renderer. Current HDRI workflow with offset bitmap, or horizontal rotate in VrayHDRI, ok, standard for now, but little obsolete too.
And CoronaHDRI idea, CoronaSun in this scenario is only horizontal rotation helper and is typically turned off.
Ok, offset is basic workflow, but I can not be satisfied with it, for me is obsolete.
And about viewport envir rotation, one of best method for setting light direction is from Top view, you see scene geometry, you can imagine where is sun going, shadow direction.