diff options
author | Antony Riakiotakis <kalast@gmail.com> | 2013-03-15 13:48:51 +0400 |
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committer | Antony Riakiotakis <kalast@gmail.com> | 2013-03-15 13:48:51 +0400 |
commit | 99ee23aec5f50f36fc39c37a795a504540cfb177 (patch) | |
tree | 300b0ee9b957455352240ad595f8b6686b25efd1 /source/blender/blenkernel/intern/brush.c | |
parent | 1ea16dcf9b5337a7f8983a09d7f92b6164a7670f (diff) |
Support for rake in 2D image painting.
Diffstat (limited to 'source/blender/blenkernel/intern/brush.c')
-rw-r--r-- | source/blender/blenkernel/intern/brush.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/brush.c b/source/blender/blenkernel/intern/brush.c index d341a2c06e1..6adcdbd2c3e 100644 --- a/source/blender/blenkernel/intern/brush.c +++ b/source/blender/blenkernel/intern/brush.c @@ -565,15 +565,37 @@ float BKE_brush_sample_tex_3D(const Scene *scene, Brush *br, /* Brush Sampling for 2D brushes. when we unify the brush systems this will be necessarily a separate function */ float BKE_brush_sample_tex_2D(const Scene *scene, Brush *brush, const float xy[2], float rgba[4], struct ImagePool *pool) { + UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings; MTex *mtex = &brush->mtex; if (mtex && mtex->tex) { float co[3], tin, tr, tg, tb, ta; + float x = xy[0], y = xy[1]; int hasrgb; - const int radius = BKE_brush_size_get(scene, brush); + int radius = BKE_brush_size_get(scene, brush); + float rotation = -mtex->rot; + + if (mtex->brush_map_mode == MTEX_MAP_MODE_VIEW) { + rotation += ups->brush_rotation; + radius = ups->pixel_radius; + } + + x /= radius; + y /= radius; + + if (rotation > 0.001f || rotation < -0.001f) { + const float angle = atan2f(y, x) + rotation; + const float flen = sqrtf(x * x + y * y); + + x = flen * cosf(angle); + y = flen * sinf(angle); + } + + x *= brush->mtex.size[0]; + y *= brush->mtex.size[1]; - co[0] = xy[0] / radius; - co[1] = xy[1] / radius; + co[0] = x + brush->mtex.ofs[0]; + co[1] = y + brush->mtex.ofs[1]; co[2] = 0.0f; hasrgb = externtex(mtex, co, &tin, &tr, &tg, &tb, &ta, 0, pool); |