Commit: fa3c3438a23bf8cf39e2027784a5fe8a8d6fd681
Author: Antonio Vazquez
Date: Tue Nov 7 18:34:40 2017 +0100
Branches: greasepencil-object
https://developer.blender.org/rBfa3c3438a23bf8cf39e2027784a5fe8a8d6fd681
Apply stabilization in segments with a minimum size
If the points are too near, the stabilization must be disabled.
This modification is still WIP, needs more artist feedback to verify if works.
===================================================================
M source/blender/editors/gpencil/gpencil_paint.c
===================================================================
diff --git a/source/blender/editors/gpencil/gpencil_paint.c
b/source/blender/editors/gpencil/gpencil_paint.c
index 4a919da92a4..c8d6acd945d 100644
--- a/source/blender/editors/gpencil/gpencil_paint.c
+++ b/source/blender/editors/gpencil/gpencil_paint.c
@@ -191,6 +191,8 @@ typedef struct tGPsdata {
/* minimum length of new segment before new point can be added */
#define MIN_EUCLIDEAN_PX (U.gp_euclideandist)
+#define MIN_STROKE_SEGMENT_SQUARE 60.0f
+
static bool gp_stroke_added_check(tGPsdata *p)
{
return (p->gpf && p->gpf->strokes.last && p->flags &
GP_PAINTFLAG_STROKEADDED);
@@ -492,6 +494,7 @@ static void copy_v2float_v2int(float r[2], const int a[2])
*/
static bool gp_smooth_buffer_point(bGPdata *gpd, float inf)
{
+
tGPspoint *pt, *pta, *ptb;
float fpt[2], fpta[2], fptb[2];
float estimated_co[2] = { 0.0f };
@@ -518,14 +521,17 @@ static bool gp_smooth_buffer_point(bGPdata *gpd, float
inf)
/* current point */
pt = (tGPspoint *)gpd->sbuffer + i;
- /* compute estimated position projecting over last two points vector
the
+ /* compute estimated position projecting over last two points vector the
* vector to new point.
*/
copy_v2float_v2int(fpta, &pta->x);
copy_v2float_v2int(fptb, &ptb->x);
copy_v2float_v2int(fpt, &pt->x);
+
+ float sqsize = len_squared_v2v2(fpta, fpt);
float lambda = closest_to_line_v2(estimated_co, fpt, fpta, fptb);
- if (lambda > 0.0f) {
+ /* need a minimum space between points to apply */
+ if ((lambda > 0.0f) && (sqsize > MIN_STROKE_SEGMENT_SQUARE)) {
/* blend between original and optimal smoothed coordinate */
interp_v2_v2v2(fpt, fpt, estimated_co, inf);
copy_v2int_v2float(&pt->x, fpt);
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