first commit
This commit is contained in:
Your Name
172
utils/Modeller/uv_pack.py
Normal file
172
utils/Modeller/uv_pack.py
Normal file
@@ -0,0 +1,172 @@
|
||||
#!BPY
|
||||
|
||||
# """
|
||||
# Name: 'Pack selected objects on a square'
|
||||
# Blender: 245
|
||||
# Group: 'UV'
|
||||
# Tooltip: 'Pack UV maps of all selected objects onto an empty square texture'
|
||||
# """
|
||||
|
||||
__author__ = "Melchior FRANZ < mfranz # aon : at >"
|
||||
__url__ = "http://members.aon.at/mfranz/flightgear/"
|
||||
__version__ = "0.1"
|
||||
__bpydoc__ = """\
|
||||
Script for mapping multiple objects onto one square texture.
|
||||
|
||||
Usage:
|
||||
(1) create new square texture in the UV editor
|
||||
(2) map all objects individually, choosing the most appropriate technique
|
||||
(3) scale each of the mappings to the appropriate size, relative to the
|
||||
other object mappings
|
||||
(4) select all objects and switch to edit mode (consider to use
|
||||
Select->Linked->Material or similar methods)
|
||||
(5) start this script with UVs->Scripts->Pack objects on a square
|
||||
|
||||
[now the texture image will first be erased, then colored rectangles
|
||||
will appear for each object]
|
||||
|
||||
(6) rescale and/or remap objects that you aren't happy with (the
|
||||
relative size of a mapping will be kept)
|
||||
|
||||
[continue with (5) until you like the result]
|
||||
|
||||
(7) export UV layout to SVG (UVs->Scripts->Save UV Face Layout)
|
||||
"""
|
||||
|
||||
|
||||
#--------------------------------------------------------------------------------
|
||||
# Copyright (C) 2008 Melchior FRANZ < mfranz # aon : at >
|
||||
#
|
||||
# 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.
|
||||
#--------------------------------------------------------------------------------
|
||||
|
||||
|
||||
MARGIN = 10 # px
|
||||
GAP = 10 # px
|
||||
|
||||
|
||||
import Blender
|
||||
from random import randint as rand
|
||||
|
||||
|
||||
class Abort(Exception):
|
||||
def __init__(self, msg):
|
||||
self.msg = msg
|
||||
|
||||
|
||||
def pack():
|
||||
image = Blender.Image.GetCurrent()
|
||||
if not image:
|
||||
raise Abort('No texture image selected')
|
||||
|
||||
imgwidth, imgheight = image.getSize()
|
||||
if imgwidth != imgheight:
|
||||
Blender.Draw.PupMenu("Warning%t|Image isn't a square!")
|
||||
gap = (float(GAP) / imgwidth, float(GAP) / imgheight)
|
||||
margin = (float(MARGIN) / imgwidth - gap[0] * 0.5, float(MARGIN) / imgheight - gap[1] * 0.5)
|
||||
|
||||
def drawrect(x0, y0, x1, y1, color = (255, 255, 255, 255)):
|
||||
x0 *= imgwidth
|
||||
x1 *= imgwidth
|
||||
y0 *= imgheight
|
||||
y1 *= imgheight
|
||||
for u in range(int(x0 + 0.5), int(x1 - 0.5)):
|
||||
for v in range(int(y0 + 0.5), int(y1 - 0.5)):
|
||||
image.setPixelI(u, v, color)
|
||||
|
||||
|
||||
boxes = []
|
||||
unique_meshes = {}
|
||||
|
||||
BIG = 1<<30
|
||||
Blender.Window.DrawProgressBar(0.0, "packing")
|
||||
for o in Blender.Scene.GetCurrent().objects.selected:
|
||||
if o.type != "Mesh":
|
||||
continue
|
||||
|
||||
mesh = o.getData(mesh = 1)
|
||||
if not mesh.faceUV:
|
||||
continue
|
||||
if mesh.name in unique_meshes:
|
||||
#print "dropping duplicate mesh", mesh.name, "of object", o.name
|
||||
continue
|
||||
unique_meshes[mesh.name] = True
|
||||
|
||||
print "\tobject '%s'" % o.name
|
||||
xmin = ymin = BIG
|
||||
xmax = ymax = -BIG
|
||||
for f in mesh.faces:
|
||||
for p in f.uv:
|
||||
xmin = min(xmin, p[0])
|
||||
xmax = max(xmax, p[0])
|
||||
ymin = min(ymin, p[1])
|
||||
ymax = max(ymax, p[1])
|
||||
|
||||
width = xmax - xmin
|
||||
height = ymax - ymin
|
||||
boxes.append([0, 0, width + gap[0], height + gap[1], xmin, ymin, mesh])
|
||||
|
||||
if not boxes:
|
||||
raise Abort('No mesh objects selected')
|
||||
|
||||
|
||||
boxwidth, boxheight = Blender.Geometry.BoxPack2D(boxes)
|
||||
boxmax = max(boxwidth, boxheight)
|
||||
xscale = (1.0 - 2.0 * margin[0]) / boxmax
|
||||
yscale = (1.0 - 2.0 * margin[1]) / boxmax
|
||||
|
||||
image.reload()
|
||||
#drawrect(0, 0, 1, 1) # erase texture
|
||||
|
||||
for i, box in enumerate(boxes):
|
||||
Blender.Window.DrawProgressBar(float(i) * len(boxes), "Drawing")
|
||||
xmin = ymin = BIG
|
||||
xmax = ymax = -BIG
|
||||
for f in box[6].faces:
|
||||
for p in f.uv:
|
||||
p[0] = (p[0] - box[4] + box[0] + gap[0] * 0.5 + margin[0]) * xscale
|
||||
p[1] = (p[1] - box[5] + box[1] + gap[1] * 0.5 + margin[1]) * yscale
|
||||
|
||||
xmin = min(xmin, p[0])
|
||||
xmax = max(xmax, p[0])
|
||||
ymin = min(ymin, p[1])
|
||||
ymax = max(ymax, p[1])
|
||||
|
||||
drawrect(xmin, ymin, xmax, ymax, (rand(128, 255), rand(128, 255), rand(128, 255), 255))
|
||||
box[6].update()
|
||||
|
||||
Blender.Window.RedrawAll()
|
||||
Blender.Window.DrawProgressBar(1.0, "Finished")
|
||||
|
||||
|
||||
|
||||
editmode = Blender.Window.EditMode()
|
||||
if editmode:
|
||||
Blender.Window.EditMode(0)
|
||||
Blender.Window.WaitCursor(1)
|
||||
|
||||
try:
|
||||
print "box packing ..."
|
||||
pack()
|
||||
print "done\n"
|
||||
except Abort, e:
|
||||
print "Error:", e.msg, " -> aborting ...\n"
|
||||
Blender.Draw.PupMenu("Error%t|" + e.msg)
|
||||
|
||||
Blender.Window.WaitCursor(0)
|
||||
if editmode:
|
||||
Blender.Window.EditMode(1)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user