[Bf-blender-cvs] [d518438479f] master: Subdiv: Enable topology cache for animation

[Sergey Sharybin]

Commit: d518438479fea395970ddf7395d71452cbe1e57b
Author: Sergey Sharybin
Date:   Thu Feb 21 15:15:10 2019 +0100
Branches: master
https://developer.blender.org/rBd518438479fea395970ddf7395d71452cbe1e57b

Subdiv: Enable topology cache for animation

This commit makes it so both Subdivision Surface and Multiresolution
modifiers are caching OpenSubdiv topology. This cuts down evaluation
time quite a bit, especially for meshes which don't have many extra
ordinary verticies.

Only working for animation. Other modifications like edit mode needs
more work to make topology cache preserved by copy-on-write.

===================================================================

M	source/blender/modifiers/intern/MOD_multires.c
M	source/blender/modifiers/intern/MOD_subsurf.c

===================================================================

diff --git a/source/blender/modifiers/intern/MOD_multires.c b/source/blender/modifiers/intern/MOD_multires.c
index 34162b85386..0b3c9e1275d 100644
--- a/source/blender/modifiers/intern/MOD_multires.c
+++ b/source/blender/modifiers/intern/MOD_multires.c
@@ -80,9 +80,7 @@ static Subdiv *subdiv_descriptor_ensure(MultiresModifierData *mmd,
 {
 	Subdiv *subdiv = BKE_subdiv_update_from_mesh(
 	        mmd->subdiv, subdiv_settings, mesh);
-	if (false) {
-		mmd->subdiv = subdiv;
-	}
+	mmd->subdiv = subdiv;
 	return subdiv;
 }
 
diff --git a/source/blender/modifiers/intern/MOD_subsurf.c b/source/blender/modifiers/intern/MOD_subsurf.c
index be1dffd2c2c..d079d532938 100644
--- a/source/blender/modifiers/intern/MOD_subsurf.c
+++ b/source/blender/modifiers/intern/MOD_subsurf.c
@@ -123,9 +123,7 @@ static Subdiv *subdiv_descriptor_ensure(SubsurfModifierData *smd,
 {
 	Subdiv *subdiv = BKE_subdiv_update_from_mesh(
 	        smd->subdiv, subdiv_settings, mesh);
-	if (false) {
-		smd->subdiv = subdiv;
-	}
+	smd->subdiv = subdiv;
 	return subdiv;
 }