Sculpt: Split normal radius and area radius

This enables an extra layer of control in the sculpt brushes.
For now it is enabled only in Scrape, but it should work in all brushes (like normal radius). In the future it may also be enabled in other brushes.
You can tweak in this property in the scrape brush to achieve a much better behavior when working on curve surfaces and control how much volume you want to trim. In most cases, it also fixes the bug where the brush keeps trimming in the same area without disabling accumulate.
It should be possible to fix some other artifacts in other brushes by tweaking this default property.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D5993

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_vector.h b/source/blender/blenlib/BLI_math_vector.h
index b39e979ec47..19a378269fe 100644
--- a/source/blender/blenlib/BLI_math_vector.h
+++ b/source/blender/blenlib/BLI_math_vector.h
@@ -105,6 +105,7 @@ MINLINE void add_v4_fl(float r[4], float f);
 MINLINE void add_v2_v2(float r[2], const float a[2]);
 MINLINE void add_v2_v2_db(double r[2], const double a[2]);
 MINLINE void add_v2_v2v2(float r[2], const float a[2], const float b[2]);
+MINLINE void add_v2_v2_int(int r[2], const int a[2]);
 MINLINE void add_v2_v2v2_int(int r[2], const int a[2], const int b[2]);
 MINLINE void add_v3_v3(float r[3], const float a[3]);
 MINLINE void add_v3_v3_db(double r[3], const double a[3]);