forked from bartvdbraak/blender
323cc790fa
export obj can now export duplis and particles as well as faster face exporting and other small cleanups/speedups.
88 lines
2.1 KiB
Python
88 lines
2.1 KiB
Python
import Blender
|
|
|
|
def getDerivedObjects(ob, PARTICLES= True):
|
|
'''
|
|
Takes an objects and returnes a list of (ob, maxrix4x4) pairs
|
|
that are derived from this object -
|
|
This will include the object its self if it would be rendered.
|
|
all dupli's for eg are not rendered themselves.
|
|
|
|
currently supports
|
|
* dupligroups
|
|
* dupliverts
|
|
* dupliframes
|
|
* static particles as a mesh
|
|
|
|
it is possible this function will return an empty list.
|
|
'''
|
|
|
|
ob_mtx_pairs = ob.DupObjects
|
|
effects= ob.effects
|
|
|
|
# Ignore self if were a dupli* or our parent is a duplivert.
|
|
if ob.enableDupFrames or ob.enableDupGroup or ob.enableDupVerts:
|
|
pass
|
|
else:
|
|
parent= ob.parent
|
|
if parent and parent.enableDupVerts:
|
|
pass
|
|
else:
|
|
if effects and (not effects[0].flag & Blender.Effect.Flags.EMESH):
|
|
# Particles mesh wont render
|
|
pass
|
|
else:
|
|
ob_mtx_pairs.append((ob, ob.matrixWorld))
|
|
|
|
|
|
if PARTICLES:
|
|
type_vec= type(Blender.Mathutils.Vector())
|
|
type_tp= type((0,0))
|
|
type_ls= type([])
|
|
|
|
# TODO, particles per child object.
|
|
# TODO Support materials
|
|
me= Blender.Mesh.New()
|
|
for eff in effects:
|
|
par= eff.getParticlesLoc()
|
|
|
|
if par:
|
|
type_par= type(par[0])
|
|
|
|
if type_par == type_vec:
|
|
# point particles
|
|
me.verts.extend(par)
|
|
|
|
elif type_par == type_tp:
|
|
# edge pairs
|
|
start_index= len(me.verts)
|
|
me.verts.extend([v for p in par for v in p])
|
|
me.edges.extend( [(i, i+1) for i in xrange(start_index, start_index + len(par) - 1 )] )
|
|
|
|
elif type_par == type_ls:
|
|
# lines of edges
|
|
start_index= len(me.verts)
|
|
me.verts.extend([v for line in par for v in line])
|
|
|
|
edges= []
|
|
for line in par:
|
|
edges.extend( [(i,i+1) for i in xrange(start_index, start_index+len(line)-1) ] )
|
|
start_index+= len(line)
|
|
|
|
me.edges.extend(edges)
|
|
|
|
if me.verts:
|
|
# If we have verts, then add the mesh
|
|
ob_par = Blender.Object.New('Mesh')
|
|
ob_par.link( me )
|
|
|
|
LOOSE= Blender.Mesh.EdgeFlags.LOOSE
|
|
for ed in me.edges:
|
|
ed.flag |= LOOSE
|
|
|
|
# Particle's are in worldspace so an identity matrix is fine.
|
|
ob_mtx_pairs.append( (ob_par, Blender.Mathutils.Matrix()) )
|
|
|
|
return ob_mtx_pairs
|
|
|
|
|