Joshua Leung
f7857ec81b
This commit partially fixes the problems with Shapekeys from older files, as seen from the Regression suite (relative.blend and dolphin.blend in particular). In older files, keyblock->slidermax was never truly set to 1.0 even though the UI may have shown such a value (which was bizzarely being sourced from somewhere else). Hence, after loading the files in 2.5, the shapekeys wouldn't animate, as the value would get clamped between 0 and 0. To fix this, I've added a version patch which corrects these situations in old files, and I've adjusted the slider-RNA code so that it is not possible to set up such clamping anymore. TODO: The fixes detailed here only make it possible for these files to work again in 2.5. However, I haven't been able to find a way to get the files to actually work in 2.5 without manually changing the active shapekey (per object) after loading the files with these patches applied. Possibly it's just some depsgraph magic needed, unless there's still some other evil voodoo in the shapekey code