Fix T73947: Support radial symmetry in Multiplane Scrape

This includes the following changes:
- Use always the angle stored in the StrokeCache when deforming
- Interpolate between the previous and the new sampled angles
- Calculate the cursor matrix only on the 0 radial symmetry iteration

Reviewed By: brecht

Maniphest Tasks: T73947

Differential Revision: https://developer.blender.org/D6901

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/editors/sculpt_paint/paint_cursor.c b/source/blender/editors/sculpt_paint/paint_cursor.c
index cabf17e8534..ff26b347035 100644
--- a/source/blender/editors/sculpt_paint/paint_cursor.c
+++ b/source/blender/editors/sculpt_paint/paint_cursor.c
@@ -1231,7 +1231,7 @@ static void sculpt_multiplane_scrape_preview_draw(const uint gpuattr,
   float local_mat_inv[4][4];
   invert_m4_m4(local_mat_inv, ss->cache->stroke_local_mat);
   GPU_matrix_mul(local_mat_inv);
-  float angle = ss->cache->multiplane_scrape_sampled_angle;
+  float angle = ss->cache->multiplane_scrape_angle;
   if (ss->cache->pen_flip || ss->cache->invert) {
     angle = -angle;
   }