[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [35800] trunk/blender/intern/tools/ demo_mode.py: demo mode script.
Campbell Barton
ideasman42 at gmail.com
Sat Mar 26 16:31:03 CET 2011
Revision: 35800
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=35800
Author: campbellbarton
Date: 2011-03-26 15:31:03 +0000 (Sat, 26 Mar 2011)
Log Message:
-----------
demo mode script.
- option to render, wait and exit
- option to play animation for a set length of time and cycle through screens.
this WIP since it needs a event timer to run (trivial 1 liner but need to see how python can do in a nice way).
Added Paths:
-----------
trunk/blender/intern/tools/demo_mode.py
Added: trunk/blender/intern/tools/demo_mode.py
===================================================================
--- trunk/blender/intern/tools/demo_mode.py (rev 0)
+++ trunk/blender/intern/tools/demo_mode.py 2011-03-26 15:31:03 UTC (rev 35800)
@@ -0,0 +1,198 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8 compliant>
+
+# WIP, this needs a timer to run before python:
+# C code, WM_event_add_timer(CTX_wm_manager(C), CTX_wm_window(C), 0x0110, 0.1f);
+#
+# parse options
+# Play for 8 seconds then quick, switch screens every 4 sec.
+# ./blender.bin /l/OGLRenderBug.blend --python /c/bin/2.56/scripts/templates/demo_mode.py -- --animate=8 --screen_switch=4
+# ./blender.bin /l/OGLRenderBug.blend --python /c/bin/2.56/scripts/templates/demo_mode.py -- --render 3
+
+
+import bpy
+import sys
+import time
+import tempfile
+import os
+
+_mode = [0]
+
+global_config = {
+ "animate": 0, # seconds
+ "render": 0,
+ "screen_switch": 0,
+ "_init_time": 0.0,
+ "_last_switch": 0.0,
+ "_reset_anim": False,
+ "_render_out": "",
+}
+
+
+def demo_mode_init():
+ if global_config["animate"]:
+ bpy.ops.screen.animation_play()
+
+ if global_config["render"]:
+ global_config["_render_out"] = tempfile.mkstemp()[1]
+
+ bpy.context.scene.render.filepath = global_config["_render_out"]
+ bpy.context.scene.render.use_file_extension = False
+ bpy.context.scene.render.use_placeholder = False
+ if os.path.exists(global_config["_render_out"]):
+ os.remove(global_config["_render_out"])
+
+ bpy.ops.render.render('INVOKE_DEFAULT', write_still=True)
+
+ global_config["_init_time"] = global_config["_last_switch"] = time.time()
+
+
+def demo_mode_update():
+ time_current = time.time()
+ time_delta = time_current - global_config["_last_switch"]
+ time_total = time_current - global_config["_init_time"]
+
+ # quit if we're over time
+ if global_config["animate"] and time_total > global_config["animate"]:
+ sys.exit(0)
+
+ if global_config["_reset_anim"]:
+ global_config["_reset_anim"] = False
+ f = bpy.context.scene.frame_current
+ bpy.ops.screen.animation_cancel()
+ bpy.context.scene.frame_set(f)
+ bpy.ops.screen.animation_play()
+
+ if global_config["screen_switch"]:
+ print(time_delta, 1)
+ if time_delta > global_config["screen_switch"]:
+ screen = bpy.context.window.screen
+ index = bpy.data.screens.keys().index(screen.name)
+ screen_new = bpy.data.screens[(index if index > 0 else len(bpy.data.screens)) - 1]
+ bpy.context.window.screen = screen_new
+
+ global_config["_last_switch"] = time_current
+
+ if global_config["animate"]:
+ global_config["_reset_anim"] = True
+
+ if global_config["render"]:
+ if os.path.exists(global_config["_render_out"]):
+ # sleep and quit
+ os.remove(global_config["_render_out"])
+ time.sleep(global_config["render"])
+ sys.exit(0)
+
+
+# -----------------------------------------------------------------------------
+# modal operator
+
+class DemoMode(bpy.types.Operator):
+ bl_idname = "wm.demo_mode"
+ bl_label = "Simple Modal Operator"
+
+ _first_run = True
+
+ def modal(self, context, event):
+ if event.type in ('RIGHTMOUSE', 'ESC'):
+ return {'CANCELLED'}
+ # print(event.type)
+ if self.__class__._first_run:
+ self.__class__._first_run = False
+
+ demo_mode_init()
+ else:
+ demo_mode_update()
+
+ return {'PASS_THROUGH'}
+
+ def execute(self, context):
+ context.window_manager.modal_handler_add(self)
+ return {'RUNNING_MODAL'}
+
+
+def register():
+ bpy.utils.register_class(DemoMode)
+
+
+def unregister():
+ bpy.utils.unregister_class(DemoMode)
+
+
+def main_model_op():
+ register()
+ bpy.ops.wm.demo_mode('EXEC_DEFAULT')
+
+
+# -----------------------------------------------------------------------------
+# parse args
+
+
+def main():
+ import argparse
+
+ # get the args passed to blender after "--", all of which are ignored by blender specifically
+ # so python may receive its own arguments
+ argv = sys.argv
+
+ if "--" not in argv:
+ argv = [] # as if no args are passed
+ else:
+ argv = argv[argv.index("--") + 1:] # get all args after "--"
+
+ # When --help or no args are given, print this help
+ usage_text = "Run blender in background mode with this script:"
+ usage_text += " blender --background --python " + __file__ + " -- [options]"
+
+ parser = argparse.ArgumentParser(description=usage_text)
+
+ # Example background utility, add some text and renders or saves it (with options)
+ # Possible types are: string, int, long, choice, float and complex.
+ parser.add_argument("-a", "--animate", dest="animate", help="Play animations on load", type=int)
+ parser.add_argument("-r", "--render", dest="render", help="Render on load", type=int)
+ parser.add_argument("-s", "--screen_switch", dest="screen_switch", help="Switch screen every N seconds", type=int)
+
+ '''
+ parser.add_argument("-s", "--save", dest="save_path", help="Save the generated file to the specified path", metavar='FILE')
+ parser.add_argument("-r", "--render", dest="render_path", help="Render an image to the specified path", metavar='FILE')
+ '''
+
+ options = parser.parse_args(argv) # In this example we wont use the args
+
+ if not argv:
+ parser.print_help()
+ return
+
+ if not options.animate and not options.render:
+ print("Error: --render / --animate not given")
+ parser.print_help()
+ return
+
+ # Run the example function
+ global_config["animate"] = options.animate
+ global_config["render"] = options.render
+ global_config["screen_switch"] = options.screen_switch
+
+ print("batch job finished, exiting")
+
+
+if __name__ == "__main__":
+ main()
+ main_model_op()
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