2 files changed, 13 insertions, 0 deletions
diff --git a/source/blender/makesdna/DNA_gpencil_modifier_defaults.h b/source/blender/makesdna/DNA_gpencil_modifier_defaults.h
index e0947085694..88eb164c2b4 100644
--- a/source/blender/makesdna/DNA_gpencil_modifier_defaults.h
+++ b/source/blender/makesdna/DNA_gpencil_modifier_defaults.h
@@ -333,6 +333,11 @@
     .point_density = 30.0f,\
     .segment_influence = 0.0f,\
     .max_angle = DEG2RAD(170.0f),\
+    .rand_start_fac = 0.0f,\
+    .rand_end_fac = 0.0f,\
+    .rand_offset = 0.0f,\
+    .seed = 0,\
+    .step = 4,\
   }
 
 #define _DNA_DEFAULT_DashGpencilModifierData \
diff --git a/source/blender/makesdna/DNA_gpencil_modifier_types.h b/source/blender/makesdna/DNA_gpencil_modifier_types.h
index f7964e1f2fa..0f69a256f56 100644
--- a/source/blender/makesdna/DNA_gpencil_modifier_types.h
+++ b/source/blender/makesdna/DNA_gpencil_modifier_types.h
@@ -492,10 +492,17 @@ typedef struct LengthGpencilModifierData {
   int layer_pass;
   /** Length. */
   float start_fac, end_fac;
+  /** Random length factors. */
+  float rand_start_fac, rand_end_fac, rand_offset;
   /** Overshoot trajectory factor. */
   float overshoot_fac;
+  /** (first element is the index) random values. */
+  int seed;
+  /** How many frames before recalculate randoms. */
+  int step;
   /** Modifier mode. */
   int mode;
+  char _pad[4];
   /* Curvature parameters. */
   float point_density;
   float segment_influence;
@@ -509,6 +516,7 @@ typedef enum eLengthGpencil_Flag {
   GP_LENGTH_INVERT_MATERIAL = (1 << 3),
   GP_LENGTH_USE_CURVATURE = (1 << 4),
   GP_LENGTH_INVERT_CURVATURE = (1 << 5),
+  GP_LENGTH_USE_RANDOM = (1 << 6),
 } eLengthGpencil_Flag;
 
 typedef enum eLengthGpencil_Type {