# HG changeset patch
# User Mahlon E. Smith <mahlon@martini.nu>
# Date 1465233832 25200
# Node ID 0e0924ca1b96593bd3df367f820a881eac68234c

Initial commit.

diff -r 000000000000 -r 0e0924ca1b96 chunked_render.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chunked_render.py	Mon Jun 06 10:23:52 2016 -0700
@@ -0,0 +1,101 @@
+# vim: set nosta noet ts=4 sw=4:
+#
+# Split a single frame into 100 separate pieces, for blender network
+# rendering.
+#
+# Assumptions:
+# 	- Shared storage between all render nodes.
+# 	- A method for simultaneous blender execution on all nodes (even
+# 	  just ssh)
+#   - Re-constituting the image performed out of band (most easily with
+#     ImageMagick toolset)
+#
+# Copy this script into the same directory as your blend file, then run
+# like so across your render farm:
+#
+#    blender file.blend -b -P chunked_render.py
+#
+# When all nodes are finished rendering their chunks, you'll have 100
+# separate images.  Combine them back into a single image like so, if
+# you have ImageMagick installed:
+#
+#   montage -background none -mode concatenate -tile 10x10 chunk_* rendered.jpg
+#
+# Authors:
+#
+# Mahlon E. Smith <mahlon@martini.nu> and
+# Justin Smith <justin@statisticool.com>
+#
+# License:
+#
+# Copyright (c) 2016, Mahlon E. Smith <mahlon@martini.nu>
+# All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#
+#     * Neither the name of Mahlon E. Smith nor the names of his
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+import bpy
+import os
+import math
+
+tiles = 100
+t_sqr = math.sqrt( tiles )
+
+bpy.ops.wm.addon_enable( module='render_auto_tile_size' )
+
+s = bpy.context.scene
+r = s.render
+
+s.ats_settings.is_enabled  = True
+s.ats_settings.use_optimal = True
+
+r.use_border         = True
+r.use_crop_to_border = True
+r.threads_mode       = 'AUTO'
+
+count = 0
+for row in range( 1, 11 ):
+	for column in range( 1, 11 ):
+		count       = count + 1
+		filepath    = "chunk_%04d" % count
+		placeholder = "." + filepath
+		r.filepath  = "//%s" % filepath
+
+		if not os.path.isfile( placeholder ):
+			print( "Working on chunk %d (row %d, column %d)" % (count, row, column) )
+			placeholder = open( placeholder, 'w')
+			placeholder.close
+
+			r.border_min_x = ( column - 1 ) / t_sqr
+			r.border_max_x = column / t_sqr
+			r.border_min_y = ( t_sqr - row ) / t_sqr
+			r.border_max_y = ( t_sqr - row + 1 ) / t_sqr
+
+			bpy.ops.render.render( write_still=True )
+
+		else:
+			print( "Another worker already on %s, skipping." % filepath )
+
+