1 files changed, 65 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_sculpt.c b/source/blender/draw/engines/overlay/overlay_sculpt.c
new file mode 100644
index 00000000000..3b7f12ed804
--- /dev/null
+++ b/source/blender/draw/engines/overlay/overlay_sculpt.c
@@ -0,0 +1,65 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright 2019, Blender Foundation.
+ */
+
+/** \file
+ * \ingroup draw_engine
+ */
+
+#include "DRW_render.h"
+
+#include "overlay_private.h"
+
+#include "BKE_pbvh.h"
+#include "BKE_paint.h"
+#include "BKE_subdiv_ccg.h"
+
+void OVERLAY_sculpt_cache_init(OVERLAY_Data *vedata)
+{
+  OVERLAY_PassList *psl = vedata->psl;
+  OVERLAY_PrivateData *pd = vedata->stl->pd;
+  DRWShadingGroup *grp;
+
+  DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_BLEND_ALPHA;
+  DRW_PASS_CREATE(psl->sculpt_mask_ps, state | pd->clipping_state);
+
+  GPUShader *sh = OVERLAY_shader_sculpt_mask();
+  pd->sculpt_mask_grp = grp = DRW_shgroup_create(sh, psl->sculpt_mask_ps);
+  DRW_shgroup_uniform_float_copy(grp, "maskOpacity", pd->overlay.sculpt_mode_mask_opacity);
+}
+
+void OVERLAY_sculpt_cache_populate(OVERLAY_Data *vedata, Object *ob)
+{
+  OVERLAY_PrivateData *pd = vedata->stl->pd;
+  const DRWContextState *draw_ctx = DRW_context_state_get();
+  PBVH *pbvh = ob->sculpt->pbvh;
+
+  const bool use_pbvh = BKE_sculptsession_use_pbvh_draw(ob, draw_ctx->v3d);
+
+  if (use_pbvh || !ob->sculpt->deform_modifiers_active || ob->sculpt->shapekey_active) {
+    if (pbvh_has_mask(pbvh)) {
+      DRW_shgroup_call_sculpt(pd->sculpt_mask_grp, ob, false, true, false);
+    }
+  }
+}
+
+void OVERLAY_sculpt_draw(OVERLAY_Data *vedata)
+{
+  OVERLAY_PassList *psl = vedata->psl;
+
+  DRW_draw_pass(psl->sculpt_mask_ps);
+}