Add Background Shade option

animate/animate_particles.py

@@ -4,7 +4,8 @@
 #   For console only rendering (example):
 #   $ blender -noaudio --background -P animate_particles.py -- -radius=0.05 -duration=1 \
 #   -datafile="esd-detail.dat" -n_event=0 -simulated_t=0.02 -fps=24 -resolution=100 -transparency=1.2 -stamp_note="Texto no canto"\
-#    -its=1 -tpc=0 -trd=1 -detailed_tpc=1 -emcal=0 -blendersave=0 -picpct=5 -tpc_blender_path="/home/files/blender" -output_path="/tmp/blender"
+#    -its=1 -tpc=0 -trd=1 -detailed_tpc=1 -emcal=0 -blendersave=0 -tpc_blender_path="/home/files/blender"\
+#    -output_path="/tmp/blender" -bgshade=0.05
 #
 
 import os
@@ -42,7 +43,7 @@ parser.add_argument('-tpc','--tpc')
 parser.add_argument('-trd','--trd')
 parser.add_argument('-emcal','--emcal')
 parser.add_argument('-blendersave','--blendersave')
-parser.add_argument('-picpct','--picpct')
+parser.add_argument('-bgshade','--bgshade')
 parser.add_argument('-tpc_blender_path','--tpc_blender_path')
 parser.add_argument('-detailed_tpc','--detailed_tpc')
 parser.add_argument('-output_path','--output_path')
@@ -65,7 +66,7 @@ transp_par = float(args.transp_par)
 datafile = str(args.datafile)
 detectors = [int(args.its),int(args.tpc),int(args.trd),int(args.emcal),int(args.detailed_tpc)] # Array that stores which detectors to build
 blendersave = int(args.blendersave) # 1 (save Blender file) or 0 (don't)
-picpct = int(args.picpct) # percentage of animation to take picture
+bgshade = float(args.bgshade)
 tpc_blender_path = str(args.tpc_blender_path) # path to 'animate' directory, where .blend file for detailed TPC is saved
 
 # Configure Output
@@ -86,7 +87,7 @@ driver = dataDriver("AlirootFileGenerator",n_event,datafile) # Simple dataDriver
 driver.configure(duration, fps, simulated_t, outputPath, fileIdentifier, resolution_percent)
 
 ### Build scene
-init(stamp_note,transp_par,detectors,tpc_blender_path) # Cleanup, addCameras, addALICE_TPC
+init(stamp_note,transp_par,detectors,tpc_blender_path,bgshade) # Cleanup, addCameras, addALICE_TPC, Set background
 particles = driver.getParticles()
 blender_particles, blender_tracks = createSceneParticles(particles,createTracks = True) # Create blender objects - one sphere per particle
 

animate/scene_functions.py

@@ -2,12 +2,13 @@
 filename = os.path.join(os.path.basename(bpy.data.filepath), "blender_functions.py")
 exec(compile(open(filename).read(), filename, 'exec'))
 
-def init(unique_id,transp_par,detectors,blender_path):
+def init(unique_id,transp_par,detectors,blender_path,bgshade):
     bcs = bpy.context.scene
 
     # Configure Environment
     bcs.world.light_settings.use_environment_light = False
     bcs.world.light_settings.environment_energy = 0.1
+    bpy.context.scene.world.horizon_color = (bgshade,bgshade,bgshade)
 
     # Configure Stamp
     bcsr = bpy.context.scene.render
@@ -354,7 +355,7 @@ def animate(objects, particles, driver):
     bcs = bpy.context.scene
 
     #Animate particles
-    for f in range(1, bcs.frame_end+1):
+    for f in range(bcs.frame_end):
         t = driver.delta_t*f
         bcs.frame_current = f
         print("Configuring particles in frame: "+str(f)+" of "+str(bcs.frame_end))
@@ -368,8 +369,8 @@ def animate_tracks(tracks, particles, driver):
     bcs = bpy.context.scene
 
     #Animate tracks
-    for f in range(1, bcs.frame_end+1):
-        t = driver.delta_t*f
+    for f in range(bcs.frame_end):
+        t = driver.delta_t*(f+1) # choosing (f+1) instead of (f) removes gap between track and particle
         bcs.frame_current = f
         print("Configuring tracks in frame: "+ str(f) +" of "+ str(bcs.frame_end))
         for point in range(f,bcs.frame_end+1):

workflow_sketch.sh

@@ -50,7 +50,7 @@ fi
 OPTIONS=c:hdau:m:n:t:r:
 LONGOPTS=cameras:,mosaic,resolution:,fps:,transparency:,duration:,maxparticles:,\
 minparticles:,numberofevents:,minavgpz:,minavgpt:,help,download,sample,url:,its,\
-tpc,detailedtpc,trd,emcal,blendersave,picpct:
+tpc,detailedtpc,trd,emcal,blendersave,picpct:,bgshade:
 
 # -regarding ! and PIPESTATUS see above
 # -temporarily store output to be able to check for errors
@@ -90,6 +90,7 @@ TRD=1
 EMCAL=1
 BLENDERSAVE=0
 PICPCT=80
+BGSHADE=0.051
 # now enjoy the options in order and nicely split until we see --
 while true; do
     case "$1" in
@@ -158,6 +159,10 @@ while true; do
       	  PICPCT="$2"
       	  shift 2
       	  ;;
+      --bgshade)
+      	  BGSHADE="$2"
+      	  shift 2
+      	  ;;
       --its)
           ITS=0
           shift
@@ -247,6 +252,9 @@ Usage:
    --picpct VALUE
      Percentage of animation to take HD picture, saved along with the clip,
      where VALUE must be an integer
+   --bgshade VALUE
+     Set background shade of black to VALUE, where 0 is totally black
+     and 1 is totally white
    -a | --sample
      Creates a sample Blender animation of Event 2 from URL
      http://opendata.cern.ch/record/1102/files/assets/alice/2010/LHC10h/000139\
@@ -301,6 +309,7 @@ else
     echo "Cameras: $CAMERAS"
     echo "Mosaic: $MOSAIC"
     echo "Picture Percentage: ${PICPCT}%"
+    echo "Background Shade: ${BGSHADE}"
     echo "-----------------------------------"
     echo "------------ Detectors ------------"
     if [[ $ITS = 1 ]]; then
@@ -386,7 +395,7 @@ if [ "$SAMPLE" = "true" ]; then
     -fps=${FPS} -resolution=${RESOLUTION} -transparency=${TRANSPARENCY} \
     -stamp_note="opendata.cern.ch_record_1102_alice_2010_LHC10h_000139038_ESD_0001_2" -its=${ITS}\
     -tpc=${TPC} -trd=${TRD} -emcal=${EMCAL} -detailed_tpc=${DETAILED_TPC} \
-    -blendersave=1 -picpct=${PICPCT} -tpc_blender_path=${BLENDER_SCRIPT_DIR} \
+    -blendersave=1 -bgshade=${BGSHADE} -tpc_blender_path=${BLENDER_SCRIPT_DIR} \
     -output_path="${BLENDER_OUTPUT}"
 
     popd
@@ -610,7 +619,7 @@ elif [ "$SAMPLE" = "false" ]; then
   #   Create script so we can use GNU parallel   #
   #     to create multiple Blender scenes        #
   ################################################
-  if ! grep -q "${UNIQUEID}, PREPARED TO MAKE SCENES IN PARALLEL" $PROGRESS_LOG; then
+  if ! grep -q "${UNIQUEID}, PARALLEL, SCENES, STARTING" $PROGRESS_LOG; then
 
     rm -f scene-making
     rm -f make-event-*
@@ -636,7 +645,7 @@ elif [ "$SAMPLE" = "false" ]; then
   -n_event=${EVENT_ID} -simulated_t=0.03 -fps=${FPS} -resolution=${RESOLUTION} \
   -transparency=${TRANSPARENCY} -stamp_note=\'${EVENT_UNIQUE_ID}\' -its=${ITS} \
   -tpc=${TPC} -trd=${TRD} -emcal=${EMCAL} -detailed_tpc=${DETAILED_TPC} \
-  -blendersave=1 -picpct=${PICPCT} -tpc_blender_path=${BLENDER_SCRIPT_DIR} \
+  -blendersave=1 -bgshade=${BGSHADE} -tpc_blender_path=${BLENDER_SCRIPT_DIR} \
   -output_path=\'${BLENDER_OUTPUT}\' >> make-event-${EVENT_ID}
       echo timestamp \"${UNIQUEID}, ${EVENT_ID}, BLENDER SCENE, FINISHED, ${NUMBER_OF_PARTICLES}\" \>\> $PROGRESS_LOG >> make-event-${EVENT_ID}
 
@@ -647,7 +656,7 @@ elif [ "$SAMPLE" = "false" ]; then
       echo ./make-event-${EVENT_ID} >> scene-making
     done
 
-    timestamp "${UNIQUEID}, PREPARED TO MAKE SCENES IN PARALLEL" >> $PROGRESS_LOG
+    timestamp "${UNIQUEID}, PARALLEL, SCENES, STARTING" >> $PROGRESS_LOG
 
   fi