diff --git a/3d-viewer/3d_cache/3d_filename_resolver.cpp b/3d-viewer/3d_cache/3d_filename_resolver.cpp
index ad04cf6588..b4a885045c 100644
--- a/3d-viewer/3d_cache/3d_filename_resolver.cpp
+++ b/3d-viewer/3d_cache/3d_filename_resolver.cpp
@@ -182,7 +182,23 @@ wxString S3D_FILENAME_RESOLVER::ResolvePath( const wxString& aFileName )
 
     // first attempt to use the name as specified:
     wxString aResolvedName;
-    wxString fname = aFileName;
+    wxString fname;
+
+    // normalize paths with "${VARNAME}" to support legacy behavior
+    if( aFileName.StartsWith( wxT( "${" ) ) )
+    {
+        wxFileName tmp( aFileName );
+
+        if( tmp.Normalize() )
+            fname = tmp.GetFullPath();
+        else
+            fname = aFileName;
+
+    }
+    else
+    {
+        fname = aFileName;
+    }
 
 #ifdef _WIN32
     // translate from KiCad's internal UNIX-like path to MSWin paths
diff --git a/3d-viewer/3d_cache/sg/sg_node.cpp b/3d-viewer/3d_cache/sg/sg_node.cpp
index 27eaaf3a15..198433322d 100644
--- a/3d-viewer/3d_cache/sg/sg_node.cpp
+++ b/3d-viewer/3d_cache/sg/sg_node.cpp
@@ -30,7 +30,7 @@
 #include "3d_cache/sg/sg_node.h"
 #include "plugins/3dapi/c3dmodel.h"
 
-static const std::string node_names[V2_END + 1] = {
+static const std::string node_names[S3D::SGTYPE_END + 1] = {
     "TXFM",
     "APP",
     "COL",
diff --git a/3d-viewer/3d_rendering/3d_render_ogl_legacy/c3d_render_createscene_ogl_legacy.cpp b/3d-viewer/3d_rendering/3d_render_ogl_legacy/c3d_render_createscene_ogl_legacy.cpp
index fec8dbda51..e7ae88cfd6 100644
--- a/3d-viewer/3d_rendering/3d_render_ogl_legacy/c3d_render_createscene_ogl_legacy.cpp
+++ b/3d-viewer/3d_rendering/3d_render_ogl_legacy/c3d_render_createscene_ogl_legacy.cpp
@@ -28,8 +28,8 @@
  */
 
 #include "c3d_render_ogl_legacy.h"
-
 #include "ogl_legacy_utils.h"
+#include "geometry/shape_poly_set.h"
 
 #include "../3d_render_raytracing/shapes2D/cpolygon2d.h"
 #include "../3d_render_raytracing/shapes2D/ctriangle2d.h"
@@ -98,7 +98,7 @@ void C3D_RENDER_OGL_LEGACY::reload()
         const SHAPE_POLY_SET boardPoly = m_settings.GetBoardPoly();
         SHAPE_POLY_SET boardPolyCopy = boardPoly;
 
-        boardPolyCopy.Simplify( true );
+        boardPolyCopy.Simplify( SHAPE_POLY_SET::PM_FAST );
 
         if( boardPolyCopy.OutlineCount() == 1 )
         {