Volumes: add volume.grids.frame_filepath to get the current frame filepath
This can be used by external renderers that can load OpenVDB files.
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@ -85,6 +85,7 @@ bool BKE_volume_is_loaded(const struct Volume *volume);
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int BKE_volume_num_grids(const struct Volume *volume);
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const char *BKE_volume_grids_error_msg(const struct Volume *volume);
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const char *BKE_volume_grids_frame_filepath(const struct Volume *volume);
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VolumeGrid *BKE_volume_grid_get(const struct Volume *volume, int grid_index);
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VolumeGrid *BKE_volume_grid_active_get(const struct Volume *volume);
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VolumeGrid *BKE_volume_grid_find(const struct Volume *volume, const char *name);
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@ -901,6 +901,16 @@ const char *BKE_volume_grids_error_msg(const Volume *volume)
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#endif
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}
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const char *BKE_volume_grids_frame_filepath(const Volume *volume)
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{
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#ifdef WITH_OPENVDB
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return volume->runtime.grids->filepath;
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#else
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UNUSED_VARS(volume);
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return "";
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#endif
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}
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VolumeGrid *BKE_volume_grid_get(const Volume *volume, int grid_index)
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{
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#ifdef WITH_OPENVDB
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@ -194,6 +194,19 @@ static int rna_VolumeGrids_error_message_length(PointerRNA *ptr)
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return strlen(BKE_volume_grids_error_msg(volume));
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}
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/* Frame Filepath */
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static void rna_VolumeGrids_frame_filepath_get(PointerRNA *ptr, char *value)
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{
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Volume *volume = (Volume *)ptr->data;
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strcpy(value, BKE_volume_grids_frame_filepath(volume));
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}
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static int rna_VolumeGrids_frame_filepath_length(PointerRNA *ptr)
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{
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Volume *volume = (Volume *)ptr->data;
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return strlen(BKE_volume_grids_frame_filepath(volume));
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}
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#else
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static void rna_def_volume_grid(BlenderRNA *brna)
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@ -308,6 +321,16 @@ static void rna_def_volume_grids(BlenderRNA *brna, PropertyRNA *cprop)
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"Frame number that volume grids will be loaded at, based on scene time "
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"and volume parameters");
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prop = RNA_def_property(srna, "frame_filepath", PROP_STRING, PROP_FILEPATH);
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RNA_def_property_clear_flag(prop, PROP_EDITABLE);
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RNA_def_property_string_funcs(
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prop, "rna_VolumeGrids_frame_filepath_get", "rna_VolumeGrids_frame_filepath_length", NULL);
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RNA_def_property_ui_text(prop,
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"Frame File Path",
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"Volume file used for loading the volume at the current frame. Empty "
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"if the volume has not be loaded or the frame only exists in memory");
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/* API */
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FunctionRNA *func;
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PropertyRNA *parm;
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@ -446,7 +469,7 @@ static void rna_def_volume(BlenderRNA *brna)
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/* File */
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prop = RNA_def_property(srna, "filepath", PROP_STRING, PROP_FILEPATH);
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RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
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RNA_def_property_ui_text(prop, "File Path", "Volume sample file used by this Volume data-block");
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RNA_def_property_ui_text(prop, "File Path", "Volume file used by this Volume data-block");
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RNA_def_property_update(prop, 0, "rna_Volume_update_filepath");
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prop = RNA_def_property(srna, "packed_file", PROP_POINTER, PROP_NONE);
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