[Bf-blender-cvs] [dad260c164a] blender2.8: GP: Primitive: Fix jitter
Charlie Jolly
noreply at git.blender.org
Wed Dec 19 13:29:23 CET 2018
Commit: dad260c164adf0f86853e2f8046916739fccaffd
Author: Charlie Jolly
Date: Wed Dec 19 12:18:16 2018 +0000
Branches: blender2.8
https://developer.blender.org/rBdad260c164adf0f86853e2f8046916739fccaffd
GP: Primitive: Fix jitter
Missing vector calculation.
===================================================================
M source/blender/editors/gpencil/gpencil_primitive.c
===================================================================
diff --git a/source/blender/editors/gpencil/gpencil_primitive.c b/source/blender/editors/gpencil/gpencil_primitive.c
index d856c1859bb..a2f9de39940 100644
--- a/source/blender/editors/gpencil/gpencil_primitive.c
+++ b/source/blender/editors/gpencil/gpencil_primitive.c
@@ -826,12 +826,27 @@ static void gp_primitive_update_strokes(bContext *C, tGPDprimitive *tgpi)
/* exponential value */
const float exfactor = SQUARE(brush->gpencil_settings->draw_jitter + 2.0f);
const float fac = p2d->rnd[0] * exfactor * jitter;
+
+ /* vector */
+ float mvec[2], svec[2];;
+ if (i > 0) {
+ mvec[0] = (p2d->x - (p2d - 1)->x);
+ mvec[1] = (p2d->y - (p2d - 1)->y);
+ normalize_v2(mvec);
+ }
+ else {
+ zero_v2(mvec);
+ }
+ svec[0] = -mvec[1];
+ svec[1] = mvec[0];
+
if (p2d->rnd[0] > 0.5f) {
- add_v2_fl(&p2d->x, -fac);
+ mul_v2_fl(svec, -fac);
}
else {
- add_v2_fl(&p2d->x, fac);
+ mul_v2_fl(svec, fac);
}
+ add_v2_v2(&p2d->x, svec);
}
/* apply randomness to pressure */
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