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Fix #120843: Brush texture not mirrored in vertex paint mode #120935

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Philipp Oeser merged 2 commits from lichtwerk/blender:120843 into main 2024-04-26 07:49:50 +02:00
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1 changed files with 13 additions and 2 deletions
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15
source/blender/editors/sculpt_paint/paint_vertex.cc
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@ -1699,8 +1699,19 @@ static void vpaint_do_draw(bContext *C,
float tex_alpha = 1.0;
if (vpd->is_texbrush) {
/* NOTE: we may want to paint alpha as vertex color alpha. */
tex_alpha = paint_and_tex_color_alpha<Color>(
vp, vpd, vpd->vertexcosnos[v_index].co, &color_final);
/* If the active area is being applied for symmetry, flip it
Campbell Barton commented 2024-04-24 06:36:12 +02:00
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Worth mentioning in code-comments that this is the method used in sculpt_apply_texture.

Worth mentioning in code-comments that this is the method used in `sculpt_apply_texture`.
* across the symmetry axis and rotate it back to the original
* position in order to project it. This insures that the
* brush texture will be oriented correctly.
* This is the method also used in #sculpt_apply_texture(). */
float symm_point[3];
if (cache->radial_symmetry_pass) {
mul_m4_v3(cache->symm_rot_mat_inv.ptr(), vpd->vertexcosnos[v_index].co);
}
flip_v3_v3(symm_point, vpd->vertexcosnos[v_index].co, cache->mirror_symmetry_pass);
tex_alpha = paint_and_tex_color_alpha<Color>(vp, vpd, symm_point, &color_final);
}
Color color_orig(0, 0, 0, 0);