[Bf-blender-cvs] [f4e0a19d4f1] master: Fix T88803: GPencil Thickness modifier produces thicker lines

[Antonio Vazquez]

Commit: f4e0a19d4f1b656c2159d3cdd944d31ebaf9dba5
Author: Antonio Vazquez
Date:   Thu Jun 3 16:45:34 2021 +0200
Branches: master
https://developer.blender.org/rBf4e0a19d4f1b656c2159d3cdd944d31ebaf9dba5

Fix T88803: GPencil Thickness modifier produces thicker lines

There was a double apply of the thickness due a bug in the fading new parameter.

Differential Revision: https://developer.blender.org/D11483

===================================================================

M	source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c

===================================================================

diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c
index 512e3af063a..126949cd659 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c
@@ -170,8 +170,10 @@ static void deformStroke(GpencilModifierData *md,
       weight *= curvef;
     }
 
-    float fac_begin = mmd->flag & GP_THICK_NORMALIZE ? 1 : mmd->thickness_fac;
-    target *= interpf(fac_begin, mmd->fading_end_factor, factor_depth);
+    /* Apply distance fading. */
+    if (mmd->flag & GP_THICK_FADING) {
+      target = interpf(target, mmd->fading_end_factor, factor_depth);
+    }
 
     pt->pressure = interpf(target, pt->pressure, weight);