[Bf-blender-cvs] [ee91697acb2] greasepencil-object: GPencil: Fix Time modifier error for frame Zero

[Antonio Vazquez]

Commit: ee91697acb21cd44b9fe6cb19dbd33d9758b2364
Author: Antonio Vazquez
Date:   Sat Nov 30 17:02:10 2019 +0100
Branches: greasepencil-object
https://developer.blender.org/rBee91697acb21cd44b9fe6cb19dbd33d9758b2364

GPencil: Fix Time modifier error for frame Zero

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M	source/blender/gpencil_modifiers/intern/MOD_gpenciltime.c

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

diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpenciltime.c b/source/blender/gpencil_modifiers/intern/MOD_gpenciltime.c
index 01bb0ae2b93..e3ad5a64ac3 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpenciltime.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpenciltime.c
@@ -71,8 +71,14 @@ static int remapTime(struct GpencilModifierData *md,
   const bool invpass = mmd->flag & GP_TIME_INVERT_LAYERPASS;
   int sfra = custom ? mmd->sfra : scene->r.sfra;
   int efra = custom ? mmd->efra : scene->r.efra;
-  CLAMP_MIN(sfra, 1);
-  CLAMP_MIN(efra, 1);
+  CLAMP_MIN(sfra, 0);
+  CLAMP_MIN(efra, 0);
+
+  /* Avoid inverse ranges. */
+  if (efra < sfra) {
+    return cfra;
+  }
+
   const int time_range = efra - sfra + 1;
   int offset = mmd->offset;
   int segments = 0;