diff options
Diffstat (limited to 'source/blender/collada/MaterialExporter.cpp')
-rw-r--r-- | source/blender/collada/MaterialExporter.cpp | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/source/blender/collada/MaterialExporter.cpp b/source/blender/collada/MaterialExporter.cpp index a44fa6802f2..9d29177578d 100644 --- a/source/blender/collada/MaterialExporter.cpp +++ b/source/blender/collada/MaterialExporter.cpp @@ -37,12 +37,36 @@ MaterialsExporter::MaterialsExporter(COLLADASW::StreamWriter *sw): COLLADASW::Li void MaterialsExporter::exportMaterials(Scene *sce, bool export_selected) { - openLibrary(); + if(hasMaterials(sce)) { + openLibrary(); - MaterialFunctor mf; - mf.forEachMaterialInScene<MaterialsExporter>(sce, *this, export_selected); + MaterialFunctor mf; + mf.forEachMaterialInScene<MaterialsExporter>(sce, *this, export_selected); - closeLibrary(); + closeLibrary(); + } +} + + +bool MaterialsExporter::hasMaterials(Scene *sce) +{ + Base *base = (Base *)sce->base.first; + + while(base) { + Object *ob= base->object; + int a; + for(a = 0; a < ob->totcol; a++) + { + Material *ma = give_current_material(ob, a+1); + + // no material, but check all of the slots + if (!ma) continue; + + return true; + } + base= base->next; + } + return false; } void MaterialsExporter::operator()(Material *ma, Object *ob) |