* Move the curvature computation to the cavity pass: One can argue it's not
the best performance wise (it gets a tiny perf pernalty if it is done
alone without the ssao), but it make the code cleaner and reduce
considerably the number of shader variation possible.
* Lower shader variation to 2^8 instead of 2^12
Now when try to add annotation, if a grease pencil object is selected, first the object is unselected. This solution is not perfect but it's better than cancel the annotation.
Thanks Dalai for his help.
This option is per viewport.
Having view space shading make sense when working on isolated objects like
if you were holding them in your hands. But for entire scene work, it is
better to have the lighting fixed to have a better spatial representation.
This changes a bit how the userprefs solid lights works. They are not
visible until enabling the "Edit Solid Light" checkbox. Once enabled the
current studiolight used for solid mode will be overwritten.
Once the lighting settings are tweaked, the user can click the
"Save as Studio light" button to save the current settings.
This makes it easy to create new lighting without messing the other
presets.
The studio lights are stored as ASCII files on the disk using a dead
simple custom format.
The UI/UX is not perfect and will be improved in other commits.
Also includes:
* Separate LookDev HDRI selection from Solid Lights
* Hide LookDev HDRIs from the Solid Lights selection list
For most brushes, texture painting uses a special mask accumulation
table in order to ensure that the amount of added color only increases
when the same pixel is touched multiple times by the stroke.
Unfortunately, only the mask texture was added to the mask before
this check, while normal, stencil, texture alpha masks were applied
after this check. This means that the check can pass if e.g. the
pressure is increased, but the final mask value is actually lower.
One might think that the mask values are fixed per pixel, but with
symmetry that isn't true. The result is a nasty stripe artifact due
to the discrete cutoff nature of the accumulation test.
In order to fix this, apply all masks before accumulation.
This allows primatives to be drawn from the center using the ALT key.
Also fixes SHIFT constraint not working correctly in all directions.
Both options can be used together.
Differential Revision: https://developer.blender.org/D4009
Not sure what those #ifdef's were supposed to do exactly... But one
thing is for sure, clearing that flag in particlesettings after first
encounter would prevent transferring it properly to other objects that
would use same particlesettings.
The original offset was wrong because it applied a constant to
homogenous coordinates (the actual depth is z/w), which broke
totally if near clip distance was reduced.
A correct depth offset has to take slope into account like
glPolygonOffset in order to avoid dotted lines caused by
interpolation precision variations. When drawing wire lines
however only the slope of the line itself is accessible, so
also generally increase the offset when the object is close.
