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__init__.py
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__init__.py
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# ##### 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 #####
bl_info = {
"name": "Export Camera to Sketchfab Viewer Javascript",
"author": "Bart Veldhuizen", #based on Export Cameras & Markers export script by Campbell Barton
"version": (0, 1),
"blender": (2, 7, 3),
"api": 60995,
"location": "File > Export > Camera Export to Sketchfab Javascript",
"description": "TODO",
"warning": "",
"wiki_url": "TODO",
"tracker_url": "TODO",
'category': 'Import-Export'}
import bpy
import bpy_extras
import mathutils
from mathutils import *
from math import *
def writeCameras(context, filepath, frame_start, frame_end, scaling_factor):
# For future use: data_attrs = ['lens', 'shift_x', 'shift_y', 'dof_distance', 'clip_start', 'clip_end', 'draw_size']
c={} #the holding variable
obj=[]
scene = bpy.context.scene
obj = scene.objects.active
if obj != None:
if obj.type != 'CAMERA':
print("Not camera")
return
obj.rotation_mode = 'QUATERNION'
frame_range = range(frame_start, frame_end + 1)
#set up scene
c["startframe"]=frame_start
c["endframe"]=frame_end
c["focal"]=obj.data.lens/1000 #mm to metres
c["sensorv"]=obj.data.sensor_height/1000
c["sensorh"]=obj.data.sensor_width/1000
c["posx"]={}
c["posy"]={}
c["posz"]={}
c["rotx"]={}
c["roty"]={}
c["rotz"]={}
c["targetx"]={}
c["targety"]={}
c["targetz"]={}
#Frame based object settings
for f in frame_range:
scene.frame_set(f)
c["posx"][f]=obj.location[0]*scaling_factor
c["posy"][f]=obj.location[2]*scaling_factor
c["posz"][f]=obj.location[1]*scaling_factor
dir = obj.rotation_quaternion * mathutils.Vector(( 0, 0 , -1))
c["targetx"][f]= c["posx"][f]+dir[0]*10
c["targety"][f]= c["posy"][f]+dir[2]*10
c["targetz"][f]= c["posz"][f]+dir[1]*10
writescript(filepath,c)
return
def writescript(filename,c):
startframe=c["startframe"]
endframe=c["endframe"]
sensorh=c["sensorh"]
sensorv=c["sensorv"]
focal=c["focal"]
# Now write the script
ixScript=open (filename,'w')
ixScript.write('<html>\n')
ixScript.write('<head>\n')
ixScript.write('<script type="text/javascript" src="https://d2f25wgezub9nf.cloudfront.net/api/sketchfab-viewer-1.0.0.js"></script>\n')
ixScript.write('</head>\n')
ixScript.write('<body>\n')
ixScript.write('<iframe class="developer-full-player" id="api-frame" height="640px" width="480px" allowfullscreen mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>\n')
ixScript.write('<script>\n')
ixScript.write("var iframe = document.getElementById( 'api-frame' );\n")
ixScript.write("var version = '1.0.0';\n")
ixScript.write("var urlid = '5f6f8a6479ae4e45a9f863b8db624cd5';\n")
ixScript.write("var client = new Sketchfab( version, iframe );\n")
ixScript.write("var error = function () {\n")
ixScript.write(" console.error( 'Error api Sketchfab !' );\n")
ixScript.write("}\n");
ixScript.write("var success = function ( api ) {\n")
ixScript.write("var cameraList = [ \n")
for frame in range(int(startframe),int(endframe)+1):
ixScript.write(' { eye: [ %f, ' %c["posx"][frame] )
ixScript.write(' %f, ' %c["posz"][frame])
ixScript.write(' %f ] ' %c["posy"][frame])
ixScript.write(', target: [ %f, ' %c["targetx"][frame] )
ixScript.write(' %f, ' %c["targetz"][frame])
ixScript.write(' %f ] ' %c["targety"][frame])
if frame == endframe:
ixScript.write(' }] \n')
else:
ixScript.write(' }, \n')
#ixScript.write('ix.set_current_frame(%s) \n' %startframe)
ixScript.write("var currentCamera = 0;\n")
ixScript.write(" var loop = function () {\n")
ixScript.write(" currentCamera++;\n")
ixScript.write(" api.lookat( cameraList[ currentCamera ].eye, cameraList[ currentCamera ].target, 0.01 );\n")
ixScript.write(" setTimeout( loop, 50 );\n")
# animation loop
ixScript.write(" if( currentCamera >= %d ) {\n" %(endframe-1) )
ixScript.write(" currentCamera = 0;\n")
ixScript.write(" }\n")
ixScript.write(" }\n")
ixScript.write(" api.start( loop );\n")
ixScript.write("};\n")
ixScript.write("client.init( urlid, {\n")
ixScript.write(" success: success,\n")
ixScript.write(" error: error\n")
ixScript.write("} );\n")
ixScript.write('</script>\n')
ixScript.close()
return
#--------------------------
from bpy.props import *
from bpy_extras.io_utils import ExportHelper
class CameraExporter(bpy.types.Operator, ExportHelper):
'''Save a python script which exports camera to HTML'''
bl_idname = "export_animation.cameras"
bl_label = "Export Camera to Sketchfab Javascript"
filename_ext = ".html"
filter_glob = StringProperty(default="*.html", options={'HIDDEN'})
scaling_factor = FloatProperty(name="Scaling factor",
description="Multiply camera position by this factor",
default=1, min=0.0001, max=100000)
frame_start = IntProperty(name="Start Frame",
description="Start frame for export",
default=0, min=0, max=300000)
frame_end = IntProperty(name="End Frame",
description="End frame for export",
default=250, min=1, max=300000)
def execute(self, context):
writeCameras(context, self.filepath, self.frame_start, self.frame_end, self.scaling_factor)
return {'FINISHED'}
def invoke(self, context, event):
self.frame_start = context.scene.frame_start
self.frame_end = context.scene.frame_end
wm = context.window_manager
wm.fileselect_add(self)
return {'RUNNING_MODAL'}
def menu_export(self, context):
import os
default_path = os.path.splitext(bpy.data.filepath)[0] + ".py"
self.layout.operator(CameraExporter.bl_idname, text="Sketchfab Camera Animation Export (.html)").filepath = default_path
def register():
bpy.types.INFO_MT_file_export.append(menu_export)
bpy.utils.register_class(CameraExporter)
def unregister():
bpy.types.INFO_MT_file_export.remove(menu_export)
bpy.utils.unregister_class(CameraExporter)
if __name__ == "__main__":
register()