Multires: Begin hooking it up to the new subdiv code

Currently behaves same as subsurf, support of displacement is the
next task in the line to tackle!

1 files changed, 22 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/subdiv.c b/source/blender/blenkernel/intern/subdiv.c
index 207fdf43c55..4f630e8c38c 100644
--- a/source/blender/blenkernel/intern/subdiv.c
+++ b/source/blender/blenkernel/intern/subdiv.c
@@ -30,6 +30,7 @@
 #include "BKE_subdiv.h"
 
 #include "DNA_mesh_types.h"
+#include "DNA_modifier_types.h"
 
 #include "BLI_utildefines.h"
 
@@ -42,6 +43,27 @@
 #include "opensubdiv_evaluator_capi.h"
 #include "opensubdiv_topology_refiner_capi.h"
 
+eSubdivFVarLinearInterpolation
+BKE_subdiv_fvar_interpolation_from_uv_smooth(int uv_smooth)
+{
+	switch (uv_smooth) {
+		case SUBSURF_UV_SMOOTH_NONE:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_ALL;
+		case SUBSURF_UV_SMOOTH_PRESERVE_CORNERS:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_CORNERS_ONLY;
+		case SUBSURF_UV_SMOOTH_PRESERVE_CORNERS_AND_JUNCTIONS:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_CORNERS_AND_JUNCTIONS;
+		case SUBSURF_UV_SMOOTH_PRESERVE_CORNERS_JUNCTIONS_AND_CONCAVE:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_CORNERS_JUNCTIONS_AND_CONCAVE;
+		case SUBSURF_UV_SMOOTH_PRESERVE_BOUNDARIES:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_BOUNDARIES;
+		case SUBSURF_UV_SMOOTH_ALL:
+			return SUBDIV_FVAR_LINEAR_INTERPOLATION_NONE;
+	}
+	BLI_assert(!"Unknown uv smooth flag");
+	return SUBSURF_UV_SMOOTH_NONE;
+}
+
 Subdiv *BKE_subdiv_new_from_converter(const SubdivSettings *settings,
                                       struct OpenSubdiv_Converter *converter)
 {