Fixes for 8vytes scalar types used in DNA (int64 and double)

- makesdna wasn't checking whether such scalars are aligned to 8 bytes.
  Now it should be handled correct.
- Some scalars in Object structure weren't 8 bytes aligned, which lead
  to some incorrectly loaded files.

  Fixed by adding void *pad. It's a bit tricky part of patch, but can't
  see clearer way to make alignment correct

  Usually ints/chars were used for padding, but in this case there are
  some leading pointer properties before int64 properties and using
  pointer as a padding resolves alignment on both 32 and 64 bit
  platforms.

  Using pointers as padding weren't needed before, because all types
  were correctly aligned independent of whether pointers are 4 or 8
  bytes.

This fixes #31774: Empty offset Y parameter is resetting

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index 83bfec3cc52..2e774e4ea84 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -258,6 +258,7 @@ typedef struct Object {
 	struct FluidsimSettings *fluidsimSettings; /* if fluidsim enabled, store additional settings */
 
 	struct DerivedMesh *derivedDeform, *derivedFinal;
+	int *pad;
 	uint64_t lastDataMask;   /* the custom data layer mask that was last used to calculate derivedDeform and derivedFinal */
 	uint64_t customdata_mask; /* (extra) custom data layer mask to use for creating derivedmesh, set by depsgraph */
 	unsigned int state;			/* bit masks of game controllers that are active */