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GPencil: Restore ability for Smooth brush to affect pressure values of strokes

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This commit is contained in:
Joshua Leung
2016-03-28 02:55:59 +13:00
parent 00cfbeef11
commit a7538b19c6
4 changed files with 28 additions and 16 deletions
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3
source/blender/editors/gpencil/gpencil_brush.c
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@@ -223,9 +223,10 @@ static bool gp_brush_smooth_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i
GP_EditBrush_Data *brush = gso->brush;
bGPDspoint *pt = &gps->points[i];
float inf = gp_brush_influence_calc(gso, radius, co);
bool affect_pressure = (brush->flag & GP_EDITBRUSH_FLAG_SMOOTH_PRESSURE) != 0;
/* perform smoothing */
return gp_smooth_stroke(gps, i, inf);
return gp_smooth_stroke(gps, i, inf, affect_pressure);
}
/* ----------------------------------------------- */

16
source/blender/editors/gpencil/gpencil_intern.h
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@@ -128,19 +128,19 @@ void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke
/**
* Apply smooth to stroke
*
* \param gps Stroke to smooth
* \param i Point index
* \param inf Smooth factor
*/
bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf);
* Apply smooth to stroke point
* \param gps Stroke to smooth
* \param i Point index
* \param inf Amount of smoothing to apply
* \param affect_pressure Apply smoothing to pressure values too?
*/
bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf, bool affect_pressure);
/**
* Subdivide a stroke
* \param gps Stroke data
* \param new_totpoints Total number of points
*/
*/
void gp_subdivide_stroke(bGPDstroke *gps, const int new_totpoints);
/* Layers Enums -------------------------------------- */

4
source/blender/editors/gpencil/gpencil_paint.c
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@@ -751,10 +751,10 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
gp_subdivide_stroke(gps, sub);
}
}
/* smooth stroke - only if there's somethign to do */
/* smooth stroke - only if there's something to do */
if (gpl->smooth_drawfac > 0.0f) {
for (i = 0; i < gps->totpoints; i++) {
gp_smooth_stroke(gps, i, gpl->smooth_drawfac);
gp_smooth_stroke(gps, i, gpl->smooth_drawfac, true);
}
}

21
source/blender/editors/gpencil/gpencil_utils.c
View File

@@ -535,13 +535,15 @@ bool gp_point_xy_to_3d(GP_SpaceConversion *gsc, Scene *scene, const float screen
/**
* Apply smooth to stroke point
* \param gps Stroke to smooth
* \param i Point index
* \param inf Smooth factor
*/
bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf)
* \param gps Stroke to smooth
* \param i Point index
* \param inf Amount of smoothing to apply
* \param affect_pressure Apply smoothing to pressure values too?
*/
bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf, bool affect_pressure)
{
bGPDspoint *pt = &gps->points[i];
float pressure = 0.0f;
float sco[3] = {0.0f};
/* Do nothing if not enough points to smooth out */
@@ -585,12 +587,21 @@ bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf)
madd_v3_v3fl(sco, &pt1->x, average_fac);
madd_v3_v3fl(sco, &pt2->x, average_fac);
/* do pressure too? */
if (affect_pressure) {
pressure += pt1->pressure * average_fac;
pressure += pt2->pressure * average_fac;
}
}
}
/* Based on influence factor, blend between original and optimal smoothed coordinate */
interp_v3_v3v3(&pt->x, &pt->x, sco, inf);
if (affect_pressure) {
pt->pressure = pressure;
}
return true;
}