diff options
Diffstat (limited to 'release/scripts/export_obj.py')
| -rw-r--r-- | release/scripts/export_obj.py | 100 |
1 files changed, 96 insertions, 4 deletions
diff --git a/release/scripts/export_obj.py b/release/scripts/export_obj.py index 0edc70a874b..739b02bcbb3 100644 --- a/release/scripts/export_obj.py +++ b/release/scripts/export_obj.py @@ -181,12 +181,89 @@ def copy_images(dest_dir): copyCount+=1 print '\tCopied %d images' % copyCount + +def test_nurbs_compat(ob): + if ob.type != 'Curve': + return False + + for nu in ob.data: + if (not nu.knotsV) and nu.type != 1: # not a surface and not bezier + return True + + return False + +def write_nurb(file, ob, ob_mat): + tot_verts = 0 + cu = ob.data + + # use negative indices + Vector = Blender.Mathutils.Vector + for nu in cu: + + if nu.type==0: DEG_ORDER_U = 1 + else: DEG_ORDER_U = nu.orderU-1 # Tested to be correct + + if nu.type==1: + print "\tWarning, bezier curve:", ob.name, "only poly and nurbs curves supported" + continue + + if nu.knotsV: + print "\tWarning, surface:", ob.name, "only poly and nurbs curves supported" + continue + + if len(nu) <= DEG_ORDER_U: + print "\tWarning, orderU is lower then vert count, skipping:", ob.name + continue + + pt_num = 0 + do_closed = (nu.flagU & 1) + do_endpoints = (do_closed==0) and (nu.flagU & 2) + + for pt in nu: + pt = Vector(pt[0], pt[1], pt[2]) * ob_mat + file.write('v %.6f %.6f %.6f\n' % (pt[0], pt[1], pt[2])) + pt_num += 1 + tot_verts += pt_num + + file.write('g %s\n' % (fixName(ob.name))) # fixName(ob.getData(1)) could use the data name too + file.write('cstype bspline\n') # not ideal, hard coded + file.write('deg %d\n' % DEG_ORDER_U) # not used for curves but most files have it still + + curve_ls = [-(i+1) for i in xrange(pt_num)] + + # 'curv' keyword + if do_closed: + if DEG_ORDER_U == 1: + pt_num += 1 + curve_ls.append(-1) + else: + pt_num += DEG_ORDER_U + curve_ls = curve_ls + curve_ls[0:DEG_ORDER_U] + + file.write('curv 0.0 1.0 %s\n' % (' '.join( [str(i) for i in curve_ls] ))) # Blender has no U and V values for the curve + + # 'parm' keyword + tot_parm = (DEG_ORDER_U + 1) + pt_num + tot_parm_div = float(tot_parm-1) + parm_ls = [(i/tot_parm_div) for i in xrange(tot_parm)] + + if do_endpoints: # end points, force param + for i in xrange(DEG_ORDER_U+1): + parm_ls[i] = 0.0 + parm_ls[-(1+i)] = 1.0 + + file.write('parm u %s\n' % ' '.join( [str(i) for i in parm_ls] )) + + file.write('end\n') + + return tot_verts + def write(filename, objects,\ EXPORT_TRI=False, EXPORT_EDGES=False, EXPORT_NORMALS=False, EXPORT_NORMALS_HQ=False,\ EXPORT_UV=True, EXPORT_MTL=True, EXPORT_COPY_IMAGES=False,\ EXPORT_APPLY_MODIFIERS=True, EXPORT_ROTX90=True, EXPORT_BLEN_OBS=True,\ EXPORT_GROUP_BY_OB=False, EXPORT_GROUP_BY_MAT=False, EXPORT_KEEP_VERT_ORDER=False,\ -EXPORT_POLYGROUPS=False): +EXPORT_POLYGROUPS=False, EXPORT_CURVE_AS_NURBS=True): ''' Basic write function. The context and options must be alredy set This can be accessed externaly @@ -266,6 +343,17 @@ EXPORT_POLYGROUPS=False): # Get all meshes for ob_main in objects: for ob, ob_mat in BPyObject.getDerivedObjects(ob_main): + + # Nurbs curve support + if EXPORT_CURVE_AS_NURBS and test_nurbs_compat(ob): + if EXPORT_ROTX90: + ob_mat = ob_mat * mat_xrot90 + + totverts += write_nurb(file, ob, ob_mat) + + continue + # end nurbs + # Will work for non meshes now! :) # getMeshFromObject(ob, container_mesh=None, apply_modifiers=True, vgroups=True, scn=None) me= BPyMesh.getMeshFromObject(ob, containerMesh, EXPORT_APPLY_MODIFIERS, EXPORT_POLYGROUPS, scn) @@ -585,7 +673,7 @@ def write_ui(filename): EXPORT_MTL, EXPORT_SEL_ONLY, EXPORT_ALL_SCENES,\ EXPORT_ANIMATION, EXPORT_COPY_IMAGES, EXPORT_BLEN_OBS,\ EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ - EXPORT_POLYGROUPS + EXPORT_POLYGROUPS, EXPORT_CURVE_AS_NURBS EXPORT_APPLY_MODIFIERS = Draw.Create(0) EXPORT_ROTX90 = Draw.Create(1) @@ -604,6 +692,7 @@ def write_ui(filename): EXPORT_GROUP_BY_MAT = Draw.Create(0) EXPORT_KEEP_VERT_ORDER = Draw.Create(1) EXPORT_POLYGROUPS = Draw.Create(0) + EXPORT_CURVE_AS_NURBS = Draw.Create(1) # Old UI @@ -693,7 +782,7 @@ def write_ui(filename): EXPORT_MTL, EXPORT_SEL_ONLY, EXPORT_ALL_SCENES,\ EXPORT_ANIMATION, EXPORT_COPY_IMAGES, EXPORT_BLEN_OBS,\ EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ - EXPORT_POLYGROUPS + EXPORT_POLYGROUPS, EXPORT_CURVE_AS_NURBS Draw.Label('Context...', ui_x+9, ui_y+239, 220, 20) Draw.BeginAlign() @@ -726,6 +815,8 @@ def write_ui(filename): Draw.EndAlign() EXPORT_POLYGROUPS = Draw.Toggle('Polygroups', EVENT_REDRAW, ui_x+9, ui_y+95, 120, 20, EXPORT_POLYGROUPS.val, 'Export vertex groups as OBJ groups (one group per face approximation).') + EXPORT_CURVE_AS_NURBS = Draw.Toggle('Nurbs', EVENT_NONE, ui_x+139, ui_y+95, 100, 20, EXPORT_CURVE_AS_NURBS.val, 'Export 3D nurbs curves and polylines as OBJ curves, (bezier not supported).') + Draw.Label('Blender Objects as OBJ:', ui_x+9, ui_y+59, 220, 20) Draw.BeginAlign() @@ -779,6 +870,7 @@ def write_ui(filename): EXPORT_GROUP_BY_MAT = EXPORT_GROUP_BY_MAT.val EXPORT_KEEP_VERT_ORDER = EXPORT_KEEP_VERT_ORDER.val EXPORT_POLYGROUPS = EXPORT_POLYGROUPS.val + EXPORT_CURVE_AS_NURBS = EXPORT_CURVE_AS_NURBS.val base_name, ext = splitExt(filename) @@ -828,7 +920,7 @@ def write_ui(filename): EXPORT_COPY_IMAGES, EXPORT_APPLY_MODIFIERS,\ EXPORT_ROTX90, EXPORT_BLEN_OBS,\ EXPORT_GROUP_BY_OB, EXPORT_GROUP_BY_MAT, EXPORT_KEEP_VERT_ORDER,\ - EXPORT_POLYGROUPS) + EXPORT_POLYGROUPS, EXPORT_CURVE_AS_NURBS) Blender.Set('curframe', orig_frame) |