I sort of made a reverse matcap thing, where a gray product render + AI generated normalmap are used to create a HDRI 360 map that has a no questions asked reconstruction of the light..
At the end of the process I have a sphere that has the guessed light intensity in a point attribute, it's values go from 0.0 to around 15.0
So I figured I put a cam in the middle, set it to polar lens and render out a 360 HDRI for reuse, that works fine only the EXR that is saved is clamped between for 0.0 to 1.0, as are live renders and render gallery renders. So I suspect it's some Karma setting/issue and an file format issue.
As a material it's a simple mtlxsurface_unlit with the material_properties wiring the point attribute in the emission:
(when I make the emission_color on the mtlxsurface, which is I guess multiplied with the emission amount, darker I see the highlights fade nicely, so the attribute is read in full range.
So where is this clipping happening?
