Fix bug #1356: .obj loading bug in picolib

There's a bug in picolib when parsing the first group in an .obj file.

The library tries to set the surface name to a surface pointer
that is still NULL.

This gets silently ignored but the problem reappears later
in a warning message when the material or a face is parsed.

diff --git a/libs/picomodel/pm_obj.c b/libs/picomodel/pm_obj.c
index a089f5f44c1be4dbd1b493f84b23638aa7a631fd..49d0fe84ed264e253f01b41abfcc961163c3fc22 100644 (file)
--- a/libs/picomodel/pm_obj.c
+++ b/libs/picomodel/pm_obj.c
@@ -676,7 +676,7 @@ static picoModel_t *_obj_load( PM_PARAMS_LOAD ){
 #endif
                        }
 
-                       if ( curFace == 0 ) {
+                       if ( curFace == 0 && curSurface != NULL ) {
                                PicoSetSurfaceName( curSurface,groupName );
                        }
                        else