Update README.md

data_generation/README.md

@@ -35,6 +35,12 @@ To customize the usage of the program:
 ./gen_3psdf_samples input.obj output.sdf output_recon.obj output_sample_points.ply octree_depth [default=9] flag_writeSDF [default=1] flag_recon_3PSDF [default=1] flag_writePLY [default=1]"
 ```
 
+`flag_writeSDF`: whether to generate `.sdf` file (currenlty can be viewed in any text editor for illustration purpose, you are welcomed to customized it into a binary format for acceleration) that encodes the raw training samples for 3PSDF learning. By default, it is set to 1 to activate sdf generation; it is disabled when set to 0. 
+
+`flag_recon_3PSDF`: whether to reconstruct the generated 3PSDF field to a mesh for debug purpose. By default, it is set to 1 to activate the generation; it is disabled when set to 0. 
+
+`flag_writePLY`: whether to generate `.ply` file that encodes the sampling points used in the `.sdf' training data. It is used for debug and visualization purpose. By default, it is set to 1 to activate the generation; it is disabled when set to 0. 
+
 
 (2) `batch_generate`: the binary that generates 3PSDF sampling points in batch. 
 
@@ -43,7 +49,7 @@ To customize the usage of the program:
 
 ```
 ./batch_generate todo_list.txt inDir outSDFDir outObjDir outPlyDir octree_depth [default=9] \
-      flag_writeSDF [default=0] flag_writeOBJ [default=1] flag_writePLY [default=1]"
+      flag_writeSDF [default=0] flag_writeOBJ [default=1] flag_writePLY [default=1] [todo_list.txt (optional)]"
 ```