Cycles: modernize usage of rna iterators

Using rna iterators in range-based for loops is possible since {rBc4286ddb095d32714c9d5f10751a14f5871b3844}.

This patch only updates the places that are easy to update
without more changes in surrounding code.

Differential Revision: https://developer.blender.org/D10195

1 files changed, 2 insertions, 6 deletions

diff --git a/intern/cycles/blender/blender_volume.cpp b/intern/cycles/blender/blender_volume.cpp
index 094d4bbc08c..410f7a72cf5 100644
--- a/intern/cycles/blender/blender_volume.cpp
+++ b/intern/cycles/blender/blender_volume.cpp
@@ -222,9 +222,7 @@ class BlenderVolumeLoader : public VDBImageLoader {
     b_volume.grids.load(b_data.ptr.data);
 
 #ifdef WITH_OPENVDB
-    BL::Volume::grids_iterator b_grid_iter;
-    for (b_volume.grids.begin(b_grid_iter); b_grid_iter != b_volume.grids.end(); ++b_grid_iter) {
-      BL::VolumeGrid b_volume_grid(*b_grid_iter);
+    for (BL::VolumeGrid &b_volume_grid : b_volume.grids) {
       if (b_volume_grid.name() == grid_name) {
         const bool unload = !b_volume_grid.is_loaded();
 
@@ -260,9 +258,7 @@ static void sync_volume_object(BL::BlendData &b_data,
   volume->set_object_space((b_render.space() == BL::VolumeRender::space_OBJECT));
 
   /* Find grid with matching name. */
-  BL::Volume::grids_iterator b_grid_iter;
-  for (b_volume.grids.begin(b_grid_iter); b_grid_iter != b_volume.grids.end(); ++b_grid_iter) {
-    BL::VolumeGrid b_grid = *b_grid_iter;
+  for (BL::VolumeGrid &b_grid : b_volume.grids) {
     ustring name = ustring(b_grid.name());
     AttributeStandard std = ATTR_STD_NONE;