Commit: f1981b3cfc2b592a0d3e4f227f493d0b6197d7f1
Author: Martin Felke
Date: Wed Dec 30 20:47:25 2015 +0100
Branches: fracture_modifier
https://developer.blender.org/rBf1981b3cfc2b592a0d3e4f227f493d0b6197d7f1
partial fix for displacement / autohide flicker problem, happens now only with
automerge (occasionally) and with automerge + fix normals (regularly), but for
displacement and glass you mostly need only autohide; automerge and fix normals
are for smooth objects where cracks should be nearly invisible (after
fracturing)
===================================================================
M source/blender/modifiers/intern/MOD_fracture.c
===================================================================
diff --git a/source/blender/modifiers/intern/MOD_fracture.c
b/source/blender/modifiers/intern/MOD_fracture.c
index 3b17649..4109eb6 100644
--- a/source/blender/modifiers/intern/MOD_fracture.c
+++ b/source/blender/modifiers/intern/MOD_fracture.c
@@ -2795,12 +2795,19 @@ static DerivedMesh *do_autoHide(FractureModifierData
*fmd, DerivedMesh *dm, Obje
BMO_op_callf(bm, (BMO_FLAG_DEFAULTS & ~BMO_FLAG_RESPECT_HIDE),
"automerge_keep_normals verts=%hv dist=%f", BM_ELEM_SELECT,
fmd->automerge_dist); /*need to merge larger cracks*/
- }
- //dissolve sharp edges with limit dissolve
- BMO_op_callf(bm, (BMO_FLAG_DEFAULTS & ~BMO_FLAG_RESPECT_HIDE),
"dissolve_limit_keep_normals "
- "angle_limit=%f use_dissolve_boundaries=%b verts=%av
edges=%ae delimit=%i",
- DEG2RADF(1.0f), false, 0);
+ if (fmd->fix_normals) {
+ /* dissolve sharp edges with limit dissolve
+ * this causes massive flicker with displacements and
possibly with glass too when autohide is enabled
+ * so use this only when fix normals has been requested
and automerge is enabled
+ * for glass in most cases autohide is enough, for
displacements too, fix normals and automerge are for special cases where you
+ * want to clear off nearly all cracks (with smooth
objects for example), in those cases you still might experience flickering
+ * when using glass or displacements */
+ BMO_op_callf(bm, (BMO_FLAG_DEFAULTS &
~BMO_FLAG_RESPECT_HIDE), "dissolve_limit_keep_normals "
+ "angle_limit=%f
use_dissolve_boundaries=%b verts=%av edges=%ae delimit=%i",
+ DEG2RADF(1.0f), false, 0);
+ }
+ }
result = CDDM_from_bmesh(bm, true);
BM_mesh_free(bm);
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