diff --git a/librw b/librw
index b3ad490d..40eae78e 160000
--- a/librw
+++ b/librw
@@ -1 +1 @@
-Subproject commit b3ad490d1be3c1f41b416d3ceeaff3453bd2d28d
+Subproject commit 40eae78e793f234e332aff08265c41683faeb7f7
diff --git a/src/fakerw/fake.cpp b/src/fakerw/fake.cpp
index 76d7865c..e569dea9 100644
--- a/src/fakerw/fake.cpp
+++ b/src/fakerw/fake.cpp
@@ -429,8 +429,7 @@ void RwIm3DVertexSetU(RwIm3DVertex *vert, RwReal u) { vert->setU(u); }
 void RwIm3DVertexSetV(RwIm3DVertex *vert, RwReal v) { vert->setV(v); }
 void RwIm3DVertexSetRGBA(RwIm3DVertex *vert, RwUInt8 r, RwUInt8 g, RwUInt8 b, RwUInt8 a) { vert->setColor(r, g, b, a); }
 
-// WARNING: ignoring flags
-void  *RwIm3DTransform(RwIm3DVertex *pVerts, RwUInt32 numVerts, RwMatrix *ltm, RwUInt32 flags) { im3d::Transform(pVerts, numVerts, ltm); return pVerts; }
+void  *RwIm3DTransform(RwIm3DVertex *pVerts, RwUInt32 numVerts, RwMatrix *ltm, RwUInt32 flags) { im3d::Transform(pVerts, numVerts, ltm, flags); return pVerts; }
 RwBool RwIm3DEnd(void) { im3d::End(); return true; }
 RwBool RwIm3DRenderLine(RwInt32 vert1, RwInt32 vert2) {
 	RwImVertexIndex indices[2];
diff --git a/src/fakerw/rwcore.h b/src/fakerw/rwcore.h
index 22e29737..31bc5541 100644
--- a/src/fakerw/rwcore.h
+++ b/src/fakerw/rwcore.h
@@ -20,11 +20,11 @@ typedef RwUInt16 RwImVertexIndex;
 
 enum RwIm3DTransformFlags
 {
-	rwIM3D_VERTEXUV      = 1,
-	rwIM3D_ALLOPAQUE     = 2,
-	rwIM3D_NOCLIP        = 4,
-	rwIM3D_VERTEXXYZ     = 8,
-	rwIM3D_VERTEXRGBA    = 16,
+	rwIM3D_VERTEXUV      = rw::im3d::VERTEXUV,
+	rwIM3D_ALLOPAQUE     = rw::im3d::ALLOPAQUE,
+	rwIM3D_NOCLIP        = rw::im3d::NOCLIP,
+	rwIM3D_VERTEXXYZ     = rw::im3d::VERTEXXYZ,
+	rwIM3D_VERTEXRGBA    = rw::im3d::VERTEXRGBA,
 };
 
 void RwIm2DVertexSetCameraX(RwIm2DVertex *vert, RwReal camx);