diff options
Diffstat (limited to 'release/scripts/uvcalc_lightmap.py')
| -rw-r--r-- | release/scripts/uvcalc_lightmap.py | 56 |
1 files changed, 43 insertions, 13 deletions
diff --git a/release/scripts/uvcalc_lightmap.py b/release/scripts/uvcalc_lightmap.py index af9acb09e17..1433ccbd13a 100644 --- a/release/scripts/uvcalc_lightmap.py +++ b/release/scripts/uvcalc_lightmap.py @@ -5,8 +5,8 @@ Blender: 242 Group: 'UVCalculation' Tooltip: 'Give each face non overlapping space on a texture.' """ -__author__ = "Campbell Barton" -__url__ = ("blender", "elysiun") +__author__ = "Campbell Barton aka ideasman42" +__url__ = ("blender", "blenderartists.org") __version__ = "1.0 2006/02/07" __bpydoc__ = """\ @@ -41,6 +41,18 @@ import BPyMesh from math import sqrt +def AngleBetweenVecs(a1,a2): + try: + return Mathutils.AngleBetweenVecs(a1,a2) + except: + return 180.0 + +# python 2.3 has no reversed() iterator. this will only work on lists and tuples +try: + reversed +except: + def reversed(l): return l[::-1] + class prettyface(object): __slots__ = 'uv', 'width', 'height', 'children', 'xoff', 'yoff', 'has_parent', 'rot' def __init__(self, data): @@ -148,9 +160,9 @@ class prettyface(object): if len(uv) == 2: # match the order of angle sizes of the 3d verts with the UV angles and rotate. def get_tri_angles(v1,v2,v3): - a1= Mathutils.AngleBetweenVecs(v2-v1,v3-v1) - a2= Mathutils.AngleBetweenVecs(v1-v2,v3-v2) - a3 = 180 - (a1+a2) #a3= Mathutils.AngleBetweenVecs(v2-v3,v1-v3) + a1= AngleBetweenVecs(v2-v1,v3-v1) + a2= AngleBetweenVecs(v1-v2,v3-v2) + a3 = 180 - (a1+a2) #a3= AngleBetweenVecs(v2-v3,v1-v3) return [(a1,0),(a2,1),(a3,2)] @@ -237,8 +249,17 @@ PREF_MARGIN_DIV= 512): face_groups.append(faces) if PREF_NEW_UVLAYER: - me.addUVLayer('lightmap') - me.activeUVLayer = 'lightmap' + uvname_org = uvname = 'lightmap' + uvnames = me.getUVLayerNames() + i = 1 + while uvname in uvnames: + uvname = '%s.%03d' % (uvname_org, i) + i+=1 + + me.addUVLayer(uvname) + me.activeUVLayer = uvname + + del uvnames, uvname_org, uvname for face_sel in face_groups: print "\nStarting unwrap" @@ -328,6 +349,9 @@ PREF_MARGIN_DIV= 512): if curr_len/4 < side_len/PREF_MARGIN_DIV: break + if not lengths: + lengths.append(curr_len) + # convert into ints lengths_to_ints = {} @@ -399,11 +423,14 @@ PREF_MARGIN_DIV= 512): # ...limiting this is needed or you end up with bug unused texture spaces # ...however if its too high, boxpacking is way too slow for high poly meshes. float_to_int_factor = lengths_to_ints[0][0] - max_int_dimension = int(((side_len / float_to_int_factor)) / PREF_BOX_DIV) - + if float_to_int_factor > 0: + max_int_dimension = int(((side_len / float_to_int_factor)) / PREF_BOX_DIV) + ok = True + else: + max_int_dimension = 0.0 # wont be used + ok = False # RECURSIVE prettyface grouping - ok = True while ok: ok = False @@ -430,7 +457,10 @@ PREF_MARGIN_DIV= 512): # Even boxes in groups of 4 for d, boxes in even_dict.items(): if d < max_int_dimension: - boxes.sort(key = lambda a: len(a.children)) + # py 2.3 compat + try: boxes.sort(key = lambda a: len(a.children)) + except: boxes.sort(lambda a, b: cmp(len(a.children), len(b.children))) + while len(boxes) >= 4: # print "bar", len(boxes) ok = True @@ -517,7 +547,7 @@ def main(): if not Draw.PupBlock('Lightmap Pack', [\ 'Context...', - ('Active Object', PREF_ACT_ONLY, 'If disabled, use all objects for packing the lightmap.'),\ + ('Active Object', PREF_ACT_ONLY, 'If disabled, include other selected objects for packing the lightmap.'),\ ('Selected Faces', PREF_SEL_ONLY, 'Use only selected faces from all selected meshes.'),\ 'Image & UVs...', ('Share Tex Space', PREF_PACK_IN_ONE, 'Objects Share texture space, map all objects into 1 uvmap'),\ @@ -538,7 +568,7 @@ def main(): return meshes = [ ob.getData(mesh=1) ] else: - meshes = dict([ (me.name, me) for ob in scn.objects.context for me in (ob.getData(mesh=1),) if not me.lib]) + meshes = dict([ (me.name, me) for ob in scn.objects.context if ob.type == 'Mesh' for me in (ob.getData(mesh=1),) if not me.lib if len(me.faces)]) meshes = meshes.values() if not meshes: Draw.PupMenu('Error%t|No mesh objects selected.') |