- new UV scaling option works better for big/small branches.
- Can constrain twigs to only grow in a bounding mesh. And an option to prune twigs that grow out.
This commit is contained in:
Campbell Barton
parent
d376b0630b
commit
1ece8b81cb
@ -101,7 +101,10 @@ class tree:
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self.branches_twigs = []
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self.mesh = None
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self.armature = None
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self.object = None
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self.objectCurve = None
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self.objectTwigBounds = None # use for twigs only at the moment.
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self.objectTwigBoundsIMat = None
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self.objectTwigBoundsMesh = None
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self.limbScale = 1.0
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self.debug_objects = []
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@ -110,16 +113,16 @@ class tree:
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s = ''
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s += '[Tree]'
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s += ' limbScale: %.6f' % self.limbScale
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s += ' object: %s' % self.object
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s += ' object: %s' % self.objectCurve
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for brch in self.branches_root:
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s += str(brch)
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return s
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def fromCurve(self, object):
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def fromCurve(self, objectCurve):
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# Now calculate the normals
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self.object = object
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curve = object.data
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self.objectCurve = objectCurve
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curve = objectCurve.data
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steps = curve.resolu # curve resolution
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# Set the curve object scale
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@ -163,7 +166,7 @@ class tree:
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for ii in (0,1,2):
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forward_diff_bezier(bez1_vec[1][ii], bez1_vec[2][ii], bez2_vec[0][ii], bez2_vec[1][ii], pointlist, steps, ii)
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# radius - no axis
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# radius - no axis, Copied from blenders BBone roll interpolation.
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forward_diff_bezier(radius1, radius1 + 0.390464*(radius2-radius1), radius2 - 0.390464*(radius2-radius1), radius2, radlist, steps, None)
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bpoints = [ bpoint(brch, Vector(pointlist[ii]), Vector(), radlist[ii] * self.limbScale) for ii in xrange(len(pointlist)) ]
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@ -180,13 +183,33 @@ class tree:
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# Sort from big to small, so big branches get priority
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self.branches_all.sort( key = lambda brch: -brch.bpoints[0].radius )
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def setTwigBounds(self, objectMesh):
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self.objectTwigBounds = objectMesh
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self.objectTwigBoundsMesh = objectMesh.getData(mesh=1)
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self.objectTwigBoundsIMat = objectMesh.matrixWorld.copy().invert()
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for brch in self.branches_all:
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brch.calcTwigBounds(self)
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def isPointInTwigBounds(self, co):
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return self.objectTwigBoundsMesh.pointInside(co ) #* self.objectTwigBoundsIMat)
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def resetTags(self, value):
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for brch in self.branches_all:
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brch.tag = value
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def buildConnections(self, sloppy=1.0, base_trim = 1.0, do_twigs = False, twig_ratio=2.0, twig_scale=0.8, twig_random_orientation= 0.5, twig_recursive=True):
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def buildConnections( self,\
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sloppy = 1.0,\
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base_trim = 1.0,\
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do_twigs = False,\
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twig_ratio = 2.0,\
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twig_scale = 0.8,\
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twig_random_orientation = 180,\
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twig_recursive=True,\
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twig_ob_bounds=None,\
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twig_ob_bounds_prune=True,\
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twig_ob_bounds_prune_taper=True,\
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):
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'''
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build tree data - fromCurve must run first
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@ -252,6 +275,11 @@ class tree:
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# Important we so this with existing parent/child but before connecting and calculating verts.
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if do_twigs:
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irational_num = 22.0/7.0 # use to make the random number more odd
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if twig_ob_bounds: # Only spawn twigs inside this mesh
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self.setTwigBounds(twig_ob_bounds)
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self.buildTwigs(twig_ratio)
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branches_twig_attached = []
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@ -266,11 +294,10 @@ class tree:
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brch_twig_index_LAST = brch_twig_index
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# new twigs have been added, recalculate
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branches_twig_sort = [(brch.bestTwigSegment(), brch) for brch in self.branches_all]
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branches_twig_sort = [brch.bestTwigSegment() for brch in self.branches_all]
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branches_twig_sort.sort() # this will sort the branches with best braches for adding twigs to at the start of the list
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for twig_data, brch_parent in branches_twig_sort:
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twig_pt_index = twig_data[1]
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for tmp_sortval, twig_pt_index, brch_parent in branches_twig_sort: # tmp_sortval is not used.
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if twig_pt_index != -1:
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@ -279,22 +306,20 @@ class tree:
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if brch_twig_index >= len(self.branches_twigs):
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break
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#print "twig"
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brch_twig = self.branches_twigs[brch_twig_index]
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parent_pt = brch_parent.bpoints[twig_pt_index]
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#if parent_pt.inTwigBounds == False:
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# raise "Error"
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brch_twig.parent_pt = parent_pt
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parent_pt.childCount += 1
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#angle = brch_parent.getParentAngle()
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# Align this with the existing branch
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angle = AngleBetweenVecs(zup, parent_pt.no)
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cross = CrossVecs(zup, parent_pt.no)
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mat_align = RotationMatrix(angle, 3, 'r', cross)
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# brch_twig.transform(mat)
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# Use the bend on the point to work out which way to make the branch point!
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if parent_pt.prev: cross = CrossVecs(parent_pt.no, parent_pt.prev.no - parent_pt.no)
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@ -316,23 +341,48 @@ class tree:
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mat_scale = Matrix([scale,0,0],[0,scale,0],[0,0,scale])
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# Random orientation
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# THIS IS NOT RANDOM - Dont be real random so we can always get re-produceale results.
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# Number b
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rnd = (((irational_num * scale * 10000000) % 360) - 180) * twig_random_orientation
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rnd = Rand(0, twig_random_orientation)
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mat_orientation = RotationMatrix(rnd*180, 3, 'r', parent_pt.no)
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mat_orientation = RotationMatrix(rnd, 3, 'r', parent_pt.no)
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brch_twig.transform(mat_scale * mat_branch_angle * mat_align * mat_orientation, parent_pt.co)
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# When using a bounding mesh, clip and calculate points in bounds.
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#print "Attempting to trim base"
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brch_twig.baseTrim(base_trim)
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if twig_ob_bounds and (twig_ob_bounds_prune or twig_recursive):
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brch_twig.calcTwigBounds(self)
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# we would not have been but here if the bounds were outside
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if twig_ob_bounds_prune:
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brch_twig.boundsTrim()
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if twig_ob_bounds_prune_taper:
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# taper to a point.
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brch_twig.taper()
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# Make sure this dosnt mess up anything else
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brch_twig_index += 1
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# Add to the branches
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#self.branches_all.append(brch_twig)
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if len(brch_twig.bpoints) > 4:
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branches_twig_attached.append(brch_twig)
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else:
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# Dont add the branch
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parent_pt.childCount -= 1
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# Watch This! - move 1 tab down for no recursive twigs
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if twig_recursive:
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@ -467,11 +517,11 @@ class tree:
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def toMesh(self, mesh=None, do_uv=True, do_uv_scalewidth=True, uv_image = None, uv_x_scale=1.0, uv_y_scale=4.0, do_cap_ends=False):
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def toMesh(self, mesh=None, do_uv=True, do_uv_keep_vproportion=True, do_uv_uscale=False, uv_image = None, uv_x_scale=1.0, uv_y_scale=4.0, do_cap_ends=False):
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# Simple points
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'''
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self.mesh = bpy.data.meshes.new()
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self.object = bpy.data.scenes.active.objects.new(self.mesh)
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self.objectCurve = bpy.data.scenes.active.objects.new(self.mesh)
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self.mesh.verts.extend([ pt.co for brch in self.branches_all for pt in brch.bpoints ])
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'''
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if mesh:
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@ -644,13 +694,23 @@ class tree:
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for brch in self.branches_all:
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uv_x_scale_branch = 1.0
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if do_uv_uscale:
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uv_x_scale_branch = 0.0
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for pt in brch.bpoints:
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uv_x_scale_branch += pt.radius
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uv_x_scale_branch = uv_x_scale_branch / len(brch.bpoints)
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# uv_x_scale_branch = brch.bpoints[0].radius
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y_val = 0.0
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for pt in brch.bpoints:
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if pt.next:
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y_size = (pt.co-pt.next.co).length
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# scale the uvs by the radiusm, avoids stritching.
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if do_uv_scalewidth:
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# scale the uvs by the radius, avoids stritching.
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if do_uv_keep_vproportion:
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y_size = y_size / pt.radius * uv_y_scale
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for i in (0,1,2,3):
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@ -658,10 +718,11 @@ class tree:
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if uv_image:
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pt.faces[i].image = uv_image
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x1 = i*0.25 * uv_x_scale
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x2 = (i+1)*0.25 * uv_x_scale
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uvs = pt.faces[i].uv
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x1 = i*0.25 * uv_x_scale * uv_x_scale_branch
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x2 = (i+1)*0.25 * uv_x_scale * uv_x_scale_branch
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uvs[3].x = x1;
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uvs[3].y = y_val+y_size
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@ -674,8 +735,6 @@ class tree:
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uvs[2].x = x2
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uvs[2].y = y_val+y_size
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do_uv_scalewidth
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if pt.next:
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y_val += y_size
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else:
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@ -818,7 +877,7 @@ class tree:
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# When we have the same trees next to eachother, they will animate the same way unless we give each its own texture or offset settings.
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# We can use the object's location as a factor - this also will have the advantage? of seeing the animation move across the tree's
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# allow a scale so the difference between tree textures can be adjusted.
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anim_offset = self.object.matrixWorld.translationPart() * anim_offset_scale
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anim_offset = self.objectCurve.matrixWorld.translationPart() * anim_offset_scale
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anim_speed_final = anim_speed
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# Assign drivers to them all
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@ -867,7 +926,7 @@ class bpoint_bone:
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class bpoint(object):
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''' The point in the middle of the branch, not the mesh points
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'''
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__slots__ = 'branch', 'co', 'no', 'radius', 'vecs', 'verts', 'children', 'faces', 'next', 'prev', 'childCount', 'bpbone', 'roll_angle', 'nextMidCo', 'childrenMidCo', 'childrenMidRadius', 'targetCos'
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__slots__ = 'branch', 'co', 'no', 'radius', 'vecs', 'verts', 'children', 'faces', 'next', 'prev', 'childCount', 'bpbone', 'roll_angle', 'nextMidCo', 'childrenMidCo', 'childrenMidRadius', 'targetCos', 'inTwigBounds'
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def __init__(self, brch, co, no, radius):
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self.branch = brch
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self.co = co
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@ -903,6 +962,9 @@ class bpoint(object):
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# more then 1 influence, build up a list and then apply
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self.targetCos = []
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# When we use twig bounding mesh, store if this point is in the bounding mesh. Assume true unless we set to false and do the test
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self.inTwigBounds = True
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def __repr__(self):
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s = ''
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s += '\t\tco:', self.co
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@ -911,7 +973,10 @@ class bpoint(object):
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s += '\t\tchildren:', [(child != False) for child in self.children]
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return s
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def makeLast(self):
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self.next = None
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self.nextMidCo = None
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self.childrenMidCo = None
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def setCo(self, co):
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self.co[:] = co
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@ -1289,10 +1354,23 @@ class branch:
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self.bpoints[-1].prev = self.bpoints[-2]
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def calcPointExtras(self):
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'''
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Run on a new branch or after transforming an existing one.
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'''
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for pt in self.bpoints:
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pt.calcNormal()
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pt.calcNextMidCo()
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def calcTwigBounds(self, tree):
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'''
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Check if out points are
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'''
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for pt in self.bpoints:
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pt.inTwigBounds = tree.isPointInTwigBounds(pt.co)
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#if pt.inTwigBounds:
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# debug_pt(pt.co)
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def baseTrim(self, base_trim):
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# if 1) dont remove the whole branch, maybe an option but later
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# if 2) we are alredy a parent, cant remove me now.... darn :/ not nice...
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@ -1307,6 +1385,32 @@ class branch:
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del self.bpoints[0]
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self.bpoints[0].prev = None
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def boundsTrim(self):
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'''
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depends on calcTwigBounds running first. - also assumes no children assigned yet! make sure this is always the case.
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'''
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trim = False
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for i, pt in enumerate(self.bpoints):
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if not pt.inTwigBounds:
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trim = True
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break
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# We must have at least 2 points to be a valid branch. this will be a stump :/
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if not trim or i < 3:
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self.bpoints = [] #
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return
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# Shorten the point list
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self.bpoints = self.bpoints[:i]
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self.bpoints[-1].makeLast()
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def taper(self):
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l = float(len( self.bpoints ))
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for i, pt in enumerate(self.bpoints):
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pt.radius *= (l-i)/l
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def getParentBranch(self):
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if not self.parent_pt:
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return None
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@ -1411,7 +1515,7 @@ class branch:
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def bestTwigSegment(self):
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'''
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Return the most free part on the branch to place a new twig
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return (best_index, dist_from_parent)
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return (sort_value, best_index, self)
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'''
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# loop up and down the branch - counding how far from the last parent segment we are
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@ -1421,7 +1525,7 @@ class branch:
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step_from_parent = 0
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for i in xrange(len(spacing1)): # -1 because the last pt cant have kits
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if self.bpoints[i].childCount:
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if self.bpoints[i].childCount or self.bpoints[i].inTwigBounds==False:
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step_from_parent = 0
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else:
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step_from_parent += 1
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@ -1433,14 +1537,15 @@ class branch:
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step_from_parent = 0
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for i in xrange(len(spacing1)-1, -1, -1):
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if self.bpoints[i].childCount:
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if self.bpoints[i].childCount or self.bpoints[i].inTwigBounds==False:
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step_from_parent = 0
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else:
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step_from_parent += 1
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spacing2[i] += step_from_parent
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if self.bpoints[i].childCount < 4:
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# inTwigBounds is true by default, when twigBounds are used it can be false
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if self.bpoints[i].childCount < 4 and self.bpoints[i].inTwigBounds:
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# Dont allow to assign more verts then 4
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val = spacing1[i] * spacing2[i]
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if val > best_val:
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@ -1450,7 +1555,10 @@ class branch:
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#if best_index == -1:
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# raise "Error"
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return -best_val, best_index
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# This value is only used for sorting, so the lower the value - the sooner it gets a twig.
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sort_val = -best_val + (1/self.getLength())
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return sort_val, best_index, self
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def evenPointDistrobution(self, factor=1.0, factor_joint=1.0):
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'''
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@ -1706,7 +1814,8 @@ PREFS['uv_x_scale'] = Draw.Create(4.0)
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PREFS['uv_y_scale'] = Draw.Create(1.0)
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PREFS['do_subsurf'] = Draw.Create(1)
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PREFS['do_cap_ends'] = Draw.Create(0)
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PREFS['do_uv_scalewidth'] = Draw.Create(1)
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PREFS['do_uv_keep_vproportion'] = Draw.Create(1)
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PREFS['do_uv_uscale'] = Draw.Create(0)
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PREFS['do_armature'] = Draw.Create(0)
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PREFS['do_anim'] = Draw.Create(1)
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try: PREFS['anim_tex'] = Draw.Create([tex for tex in bpy.data.textures][0].name)
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@ -1720,8 +1829,11 @@ PREFS['anim_offset_scale'] = Draw.Create(1.0)
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PREFS['do_twigs'] = Draw.Create(1)
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PREFS['twig_ratio'] = Draw.Create(2.0)
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PREFS['twig_scale'] = Draw.Create(0.8)
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PREFS['twig_random_orientation'] = Draw.Create(0.5)
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PREFS['twig_random_orientation'] = Draw.Create(180)
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PREFS['twig_recursive'] = Draw.Create(1)
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PREFS['twig_ob_bounds'] = Draw.Create('')
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PREFS['twig_ob_bounds_prune'] = Draw.Create(1)
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PREFS['twig_ob_bounds_prune_taper'] = Draw.Create(1)
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GLOBAL_PREFS = {}
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@ -1734,7 +1846,7 @@ def getContextCurveObjects():
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for ob in sce.objects.context:
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if ob.type != 'Curve':
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ob = ob.parent
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if ob.type != 'Curve':
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if not ob or ob.type != 'Curve':
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continue
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objects.append(ob)
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return objects
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@ -1775,8 +1887,6 @@ def IDProp2Prefs(idprop, prefs):
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return True
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def buildTree(ob, single=False):
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'''
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Must be a curve object, write to a child mesh
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@ -1845,9 +1955,14 @@ def buildTree(ob, single=False):
|
||||
else:
|
||||
time3 = Blender.sys.time() # time print
|
||||
|
||||
|
||||
print '\tconnecting branches...',
|
||||
|
||||
twig_ob_bounds = PREFS['twig_ob_bounds'].val
|
||||
if twig_ob_bounds:
|
||||
try: twig_ob_bounds = bpy.data.objects[twig_ob_bounds]
|
||||
except: twig_ob_bounds = None
|
||||
else:
|
||||
twig_ob_bounds = None
|
||||
#print t
|
||||
t.buildConnections(\
|
||||
sloppy = PREFS['connect_sloppy'].val,\
|
||||
@ -1857,6 +1972,9 @@ def buildTree(ob, single=False):
|
||||
twig_scale = PREFS['twig_scale'].val,\
|
||||
twig_random_orientation = PREFS['twig_random_orientation'].val,\
|
||||
twig_recursive = PREFS['twig_recursive'].val,\
|
||||
twig_ob_bounds = twig_ob_bounds,\
|
||||
twig_ob_bounds_prune = PREFS['twig_ob_bounds_prune'].val,\
|
||||
twig_ob_bounds_prune_taper = PREFS['twig_ob_bounds_prune_taper'].val,\
|
||||
)
|
||||
|
||||
time4 = Blender.sys.time() # time print
|
||||
@ -1890,7 +2008,8 @@ def buildTree(ob, single=False):
|
||||
mesh = t.toMesh(mesh,\
|
||||
do_uv = PREFS['do_uv'].val,\
|
||||
uv_image = image,\
|
||||
do_uv_scalewidth = PREFS['do_uv_scalewidth'].val,\
|
||||
do_uv_keep_vproportion = PREFS['do_uv_keep_vproportion'].val,\
|
||||
do_uv_uscale = PREFS['do_uv_uscale'].val,\
|
||||
uv_x_scale = PREFS['uv_x_scale'].val,\
|
||||
uv_y_scale = PREFS['uv_y_scale'].val,\
|
||||
do_cap_ends = PREFS['do_cap_ends'].val\
|
||||
@ -1994,10 +2113,8 @@ def do_pref_clear(e,v):
|
||||
try: del idprop[ID_SLOT_NAME]
|
||||
except: pass
|
||||
|
||||
#BUTS = {}
|
||||
#BUTS['']
|
||||
|
||||
def do_tex_check(e,v):
|
||||
if not v: return
|
||||
try:
|
||||
bpy.data.textures[v]
|
||||
except:
|
||||
@ -2005,6 +2122,14 @@ def do_tex_check(e,v):
|
||||
Draw.PupMenu('Texture dosnt exist!')
|
||||
Draw.Redraw()
|
||||
|
||||
def do_ob_check(e,v):
|
||||
if not v: return
|
||||
try:
|
||||
bpy.data.objects[v]
|
||||
except:
|
||||
PREFS['twig_ob_bounds'].val = ''
|
||||
Draw.PupMenu('Object dosnt exist!')
|
||||
Draw.Redraw()
|
||||
|
||||
# Button callbacks
|
||||
def do_active_image(e,v):
|
||||
@ -2134,19 +2259,30 @@ def gui():
|
||||
y-=but_height
|
||||
xtmp = x
|
||||
|
||||
PREFS['twig_ratio'] = Draw.Number('Twig Ratio', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['twig_ratio'].val, 0.01, 100.0, 'how many twigs to generate'); xtmp += but_width*2;
|
||||
PREFS['twig_scale'] = Draw.Number('Twig Scale', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['twig_scale'].val, 0.01, 1.0, 'Scale down twigs in relation to their parents'); xtmp += but_width*2;
|
||||
PREFS['twig_ratio'] = Draw.Number('Twig Ratio', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['twig_ratio'].val, 0.01, 100.0, 'How many twigs to generate per branch'); xtmp += but_width*2;
|
||||
PREFS['twig_scale'] = Draw.Number('Twig Scale', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['twig_scale'].val, 0.01, 1.0, 'Scale down twigs in relation to their parents each generation'); xtmp += but_width*2;
|
||||
y-=but_height
|
||||
xtmp = x
|
||||
# ---------- ---------- ---------- ----------
|
||||
|
||||
PREFS['twig_random_orientation'] = Draw.Number('Rand Orientation', EVENT_UPDATE, xtmp, y, but_width*4, but_height, PREFS['twig_random_orientation'].val, 0.0, 1.0, 'Random rotation around the parent'); xtmp += but_width*4;
|
||||
PREFS['twig_random_orientation'] = Draw.Number('Rand Orientation', EVENT_UPDATE, xtmp, y, but_width*4, but_height, PREFS['twig_random_orientation'].val, 0.0, 360.0, 'Random rotation around the parent'); xtmp += but_width*4;
|
||||
#PREFS['uv_y_scale'] = Draw.Number('Scale V', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['uv_y_scale'].val, 0.01, 10.0, 'Edge loop spacing around branch join, lower value for less webed joins'); xtmp += but_width*2;
|
||||
|
||||
#y-=but_height
|
||||
#xtmp = x
|
||||
y-=but_height
|
||||
xtmp = x
|
||||
# ---------- ---------- ---------- ----------
|
||||
|
||||
PREFS['twig_ob_bounds'] = Draw.String('OB Bound: ', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['twig_ob_bounds'].val, 64, 'Only grow twigs inside this mesh object', do_ob_check); xtmp += but_width*2;
|
||||
if PREFS['twig_ob_bounds_prune'].val:
|
||||
but_width_tmp = but_width
|
||||
else:
|
||||
but_width_tmp = but_width*2
|
||||
|
||||
PREFS['twig_ob_bounds_prune'] = Draw.Toggle('Prune',EVENT_UPDATE_AND_UI, xtmp, y, but_width_tmp, but_height, PREFS['twig_ob_bounds_prune'].val, 'Prune twigs to the mesh object bounds'); xtmp += but_width_tmp;
|
||||
if PREFS['twig_ob_bounds_prune'].val:
|
||||
PREFS['twig_ob_bounds_prune_taper'] = Draw.Toggle('Taper',EVENT_UPDATE_AND_UI, xtmp, y, but_width, but_height, PREFS['twig_ob_bounds_prune_taper'].val, 'Taper pruned branches to a point'); xtmp += but_width;
|
||||
|
||||
|
||||
#PREFS['image_main'] = Draw.String('IM: ', EVENT_UPDATE, xtmp, y, but_width*3, but_height, PREFS['image_main'].val, 64, 'Image to apply to faces'); xtmp += but_width*3;
|
||||
#Draw.PushButton('Use Active', EVENT_UPDATE, xtmp, y, but_width, but_height, 'Get the image from the active image window', do_active_image); xtmp += but_width;
|
||||
Blender.Draw.EndAlign()
|
||||
@ -2158,7 +2294,10 @@ def gui():
|
||||
Blender.Draw.BeginAlign()
|
||||
PREFS['do_uv'] = Draw.Toggle('Generate UVs',EVENT_UPDATE_AND_UI, xtmp, y, but_width*2, but_height, PREFS['do_uv'].val, 'Calculate UVs coords'); xtmp += but_width*2;
|
||||
if PREFS['do_uv'].val:
|
||||
PREFS['do_uv_scalewidth'] = Draw.Toggle('Keep Aspect', EVENT_UPDATE, xtmp, y, but_width*2, but_height, PREFS['do_uv_scalewidth'].val, 'Correct the UV aspect with the branch width'); xtmp += but_width*2;
|
||||
PREFS['do_uv_uscale'] = Draw.Toggle('U-Scale', EVENT_UPDATE, xtmp, y, but_width, but_height, PREFS['do_uv_uscale'].val, 'Scale the width according to the face size (will NOT tile)'); xtmp += but_width;
|
||||
PREFS['do_uv_keep_vproportion'] = Draw.Toggle('V-Aspect', EVENT_UPDATE, xtmp, y, but_width, but_height, PREFS['do_uv_keep_vproportion'].val, 'Correct the UV aspect with the branch width'); xtmp += but_width;
|
||||
|
||||
|
||||
|
||||
y-=but_height
|
||||
xtmp = x
|
||||
|
||||
Loading…
Reference in New Issue
Block a user