[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [36319] trunk/blender/source/blender/ modifiers/intern/MOD_displace.c: Displace Modifier - Optimisation Tweaks for jpbouza and ZanQdo

[Joshua Leung]

Revision: 36319
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=36319
Author:   aligorith
Date:     2011-04-25 06:27:32 +0000 (Mon, 25 Apr 2011)
Log Message:
-----------
Displace Modifier - Optimisation Tweaks for jpbouza and ZanQdo

- When strength is 0, there's no need to perform any of the
calculations at all
- When the vertexgroup weight for a vert is set to 0, skip evaluating
the modifier for that vertex as it should result in no-change to the
final result

Modified Paths:
--------------
    trunk/blender/source/blender/modifiers/intern/MOD_displace.c

Modified: trunk/blender/source/blender/modifiers/intern/MOD_displace.c
===================================================================
--- trunk/blender/source/blender/modifiers/intern/MOD_displace.c        
2011-04-25 04:36:59 UTC (rev 36318)
+++ trunk/blender/source/blender/modifiers/intern/MOD_displace.c        
2011-04-25 06:27:32 UTC (rev 36319)
@@ -260,6 +260,7 @@
        float (*tex_co)[3];
 
        if(!dmd->texture) return;
+       if(dmd->strength == 0.0f) return;
 
        defgrp_index = defgroup_name_index(ob, dmd->defgrp_name);
 
@@ -284,7 +285,7 @@
                                        break;
                                }
                        }
-                       if(!def_weight) continue;
+                       if(!def_weight || def_weight->weight==0.0f) continue;
                }
 
                texres.nor = NULL;

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