def imageFromObjectsOrtho(objects,
path,
width,
height,
smooth,
alpha=True,
camera_matrix=None,
format=Render.PNG):
'''
Takes any number of objects and renders them on the z axis, between x:y-0 and x:y-1
Usefull for making images from a mesh without per pixel operations
- objects must be alredy placed
- smooth, anti alias True/False
- path renders to a PNG image
- alpha weather to render background as alpha
returns the blender image
'''
ext = '.' + extFromFormat(format)
print ext
# remove an extension if its alredy there
if path.lower().endswith(ext):
path = path[:-4]
path_expand = sys.expandpath(path) + ext
print path_expand, 'path'
# Touch the path
try:
f = open(path_expand, 'w')
f.close()
except:
raise 'Error, could not write to path:' + path_expand
# RENDER THE FACES.
scn = Scene.GetCurrent()
render_scn = Scene.New()
render_scn.makeCurrent()
render_scn.Layers |= (1 << 20) - 1 # all layers enabled
# Add objects into the current scene
for ob in objects:
render_scn.link(ob)
render_context = render_scn.getRenderingContext()
render_context.setRenderPath(
'') # so we can ignore any existing path and save to the abs path.
render_context.imageSizeX(width)
render_context.imageSizeY(height)
if smooth:
render_context.enableOversampling(True)
render_context.setOversamplingLevel(16)
else:
render_context.enableOversampling(False)
render_context.setRenderWinSize(100)
render_context.setImageType(format)
render_context.enableExtensions(True)
#render_context.enableSky() # No alpha needed.
if alpha:
render_context.alphaMode = 1
render_context.enableRGBAColor()
else:
render_context.alphaMode = 0
render_context.enableRGBColor()
render_context.displayMode = 0 # fullscreen
# New camera and object
render_cam_data = Camera.New('ortho')
render_cam_ob = Object.New('Camera')
render_cam_ob.link(render_cam_data)
render_scn.link(render_cam_ob)
render_scn.objects.camera = render_cam_ob
render_cam_data.type = 'ortho'
# Position the camera
if camera_matrix:
render_cam_ob.setMatrix(camera_matrix)
# We need to take into account the matrix scaling when setting the size
# so we get the image bounds defined by the matrix
# first get the x and y factors from the matrix.
# To render the correct dimensions we must use the aspy and aspy to force the matrix scale to
# override the aspect enforced by the width and weight.
cent = Vector() * camera_matrix
xvec = Vector(1, 0, 0) * camera_matrix
yvec = Vector(0, 1, 0) * camera_matrix
# zvec= Vector(0,0,1) * camera_matrix
xlen = (cent - xvec).length # half height of the image
ylen = (cent - yvec).length # half width of the image
# zlen = (cent-zvec).length # dist to place the camera? - just use the loc for now.
# less then 1.0 portrate, 1.0 or more is portrate
asp_cam_mat = xlen / ylen # divide by zero? - possible but scripters fault.
asp_image_res = float(width) / height
#print 'asp quad', asp_cam_mat, 'asp_image', asp_image_res
#print 'xylen', xlen, ylen, 'w/h', width, height
# Setup the aspect
if asp_cam_mat > asp_image_res:
# camera is wider then image res.
# to make the image wider, reduce the aspy
asp_diff = asp_image_res / asp_cam_mat
min_asp = asp_diff * 200
#print 'X', min_asp
elif asp_cam_mat < asp_image_res: # asp_cam_mat < asp_image_res
# camera is narrower then image res
# to make the image narrower, reduce the aspx
asp_diff = asp_cam_mat / asp_image_res
min_asp = asp_diff * 200
#print 'Y', min_asp
else:
min_asp = 200
# set the camera size
if xlen > ylen:
if asp_cam_mat > asp_image_res:
render_context.aspectX = 200 # get the greatest range possible
render_context.aspectY = min_asp # get the greatest range possible
else:
render_context.aspectY = 200 # get the greatest range possible
render_context.aspectX = min_asp # get the greatest range possible
#print "xlen bigger"
render_cam_data.scale = xlen * 2
elif xlen < ylen: # ylen is bigger
if asp_cam_mat > asp_image_res:
render_context.aspectX = 200 # get the greatest range possible
render_context.aspectY = min_asp # get the greatest range possible
else:
render_context.aspectY = 200 # get the greatest range possible
render_context.aspectX = min_asp # get the greatest range possible
#print "ylen bigger"
render_cam_data.scale = ylen * 2
else:
# asppect 1:1
#print 'NOLEN Bigger'
render_cam_data.scale = xlen * 2
#print xlen, ylen, 'xlen, ylen'
else:
if width > height:
min_asp = int((float(height) / width) * 200)
render_context.aspectX = min_asp
render_context.aspectY = 200
else:
min_asp = int((float(width) / height) * 200)
render_context.aspectX = 200
render_context.aspectY = min_asp
render_cam_data.scale = 1.0
render_cam_ob.LocZ = 1.0
render_cam_ob.LocX = 0.5
render_cam_ob.LocY = 0.5
Blender.Window.RedrawAll()
render_context.render()
render_context.saveRenderedImage(path)
Render.CloseRenderWindow()
#if not B.sys.exists(PREF_IMAGE_PATH_EXPAND):
# raise 'Error!!!'
scn.makeCurrent()
Scene.Unlink(render_scn)
# NOW APPLY THE SAVED IMAGE TO THE FACES!
#print PREF_IMAGE_PATH_EXPAND
try:
target_image = Image.Load(path_expand)
return target_image
except:
raise 'Error: Could not render or load the image at path "%s"' % path_expand
return
scn2.makeCurrent()
#Import
frame_n = frame*100
tmp=input+name+str(frame_n)+".x3d"
print tmp
import_web3d.load_web3d(tmp)
#Editing add parameters
water = bpy.data.materials['blue']
for me in bpy.data.meshes:
me.materials = [water]
for me in bpy.data.objects:
me.setSize(0.2,2,0.2)
#Rendering
scn2=Scene.GetCurrent()
context = scn2.getRenderingContext()
context.renderPath = output
context.getRenderPath()
context.render()
context.saveRenderedImage(name+str(frame_n), 0)
#Render.CloseRenderWindow()
Window.RedrawAll()
scn=Scene.Get('Scene')
scn.makeCurrent()
Scene.Unlink(scn2)
print '+++end import+++'
