diff options
Diffstat (limited to 'source/blender/gpencil_modifiers/intern')
| -rw-r--r-- | source/blender/gpencil_modifiers/intern/MOD_gpencilnoise.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilnoise.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilnoise.c index 54218da9eb5..e0139eac6b2 100644 --- a/source/blender/gpencil_modifiers/intern/MOD_gpencilnoise.c +++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilnoise.c @@ -85,6 +85,21 @@ static bool dependsOnTime(GpencilModifierData *md) return (mmd->flag & GP_NOISE_USE_RANDOM) != 0; } +/* Get the lower number of frame for all layers. */ +static int get_lower_frame(bGPdata *gpd) +{ + int init = 99999; + for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) { + if (gpl->frames.first) { + bGPDframe *gpf = gpl->frames.first; + if (gpf->framenum < init) { + init = gpf->framenum; + } + } + } + return init; +} + /* aply noise effect based on stroke direction */ static void deformStroke( GpencilModifierData *md, Depsgraph *depsgraph, Object *ob, bGPDlayer *gpl, bGPDstroke *gps) @@ -103,6 +118,7 @@ static void deformStroke( Object *object_eval = DEG_get_evaluated_object(depsgraph, ob); GpencilModifierData *md_eval = BKE_gpencil_modifiers_findByName(object_eval, md->name); NoiseGpencilModifierData *mmd_eval = (NoiseGpencilModifierData *)md_eval; + bGPdata *gpd = (bGPdata *)ob->data; /* Random generator, only init once. (it uses eval to get same value in render) */ if (mmd_eval->rng == NULL) { @@ -110,6 +126,9 @@ static void deformStroke( rng_seed ^= POINTER_AS_UINT(mmd); mmd_eval->rng = BLI_rng_new(rng_seed); mmd->rng = mmd_eval->rng; + /* Get lower frame number */ + mmd_eval->scene_frame = get_lower_frame(gpd); + mmd->scene_frame = mmd_eval->scene_frame; } if (!is_stroke_affected_by_modifier(ob, @@ -176,19 +195,17 @@ static void deformStroke( sub_v3_v3v3(vec1, &pt1->x, &pt0->x); } vran = len_v3(vec1); - /* vector orthogonal to normal */ + /* Vector orthogonal to normal. */ cross_v3_v3v3(vec2, vec1, normal); normalize_v3(vec2); - /* use random noise */ + /* Use random noise */ if (mmd->flag & GP_NOISE_USE_RANDOM) { - sc_diff = abs(mmd->scene_frame - sc_frame); - /* only recalc if the gp frame change or the number of scene frames is bigger than step */ - if ((!gpl->actframe) || (mmd->gp_frame != gpl->actframe->framenum) || - (sc_diff >= mmd->step)) { + sc_diff = abs(sc_frame - mmd->scene_frame) % mmd->step; + /* Only recalc if the gp frame change or is a step. */ + if ((mmd->gp_frame != sc_frame) && (sc_diff == 0)) { vran = mmd->vrand1 = BLI_rng_get_float(mmd->rng); vdir = mmd->vrand2 = BLI_rng_get_float(mmd->rng); - mmd->gp_frame = gpl->actframe->framenum; - mmd->scene_frame = sc_frame; + mmd->gp_frame = sc_frame; } else { vran = mmd->vrand1; |