The International Simutrans Forum

# rotation script

#

# first press the big render button and make

# sure it looks how the first frame should be,

# then press alt + p to run this script and

# it'll save to the 'rotated' directory.

#

# june 18 2005 s

# aug 6 2005 s & db



FILENAME = "nwb"

OBJECTNAME ="Cube"

CAMERAANGLE = 0



dodebug = 0

dorolls = 1

doleftrolls = 1

dorightrolls = 1



import Blender

import math



from Blender import *

from Blender.Scene import Render



# code by timmeh (#blenderchat)

def save_frame(frameno):

	scn = Scene.GetCurrent()

	context = scn.getRenderingContext()



	#context.setImageType(Render.TARGA)

	context.setImageType(Render.PNG)



	# should probably set a frame and at the end of the prog render

	# the animation instead of rendering each frame one by one.

	# that would also give the advantage of being able to render to

	# a video directly (i think).

	context.setRenderPath("rotated/%s%02d-" % (FILENAME, frameno))



	context.startFrame(1)

	context.endFrame(1)



	context.renderAnim()



# code by timmeh (#blenderchat)

def save_roll_frame(frameno):

	scn = Scene.GetCurrent()

	context = scn.getRenderingContext()



	#context.setImageType(Render.TARGA)

	context.setImageType(Render.PNG)



	# should probably set a frame and at the end of the prog render

	# the animation instead of rendering each frame one by one.

	# that would also give the advantage of being able to render to

	# a video directly (i think).

	context.setRenderPath("rotated/%sroll%03d-" % (FILENAME, frameno))



	context.startFrame(1)

	context.endFrame(1)



	context.renderAnim()



def to_rad(a):

	return a * math.pi / 180



def set_angle(obj, degrees):

	if CAMERAANGLE:

		sigma = to_rad(0 - degrees)

		x = math.cos(sigma)

		y = math.sin(phi) * math.sin(sigma)

		obj.RotZ = math.atan2(y, x)

	else:

		obj.RotZ = - degrees * math.pi / 180



# main

# get object

obj = Blender.Object.Get(OBJECTNAME)



# calc phi

phi = to_rad(CAMERAANGLE)



# debug, rotates once (doesn't render, see 3d view)

if dodebug:

	set_angle(obj, 45)

	Blender.Redraw()

else:

	# 40 normal rotations

	for i in range(40):

		set_angle(obj, i * 9)

		#Blender.Redraw()

		save_frame(i)



	# 400 rolls

	if dorolls:

		if doleftrolls:

			# left rolls

			for j in range(5):

				obj.RotY = to_rad((5 - j) * 9)

				for i in range(40):

					set_angle(obj, i * 9)

					#Blender.Redraw()

					save_roll_frame(j * 40 + i)

		# right rolls

		if dorightrolls:

			for j in range(5):

				obj.RotY = - to_rad((j + 1) * 9)

				for i in range(40):

					set_angle(obj, i * 9)

					#Blender.Redraw()

					save_roll_frame(200 + j * 40 + i)



	# restore back to normal

	obj.RotZ = 0

	obj.RotY = 0

	Blender.Redraw()