X-Git-Url: https://git.ao2.it/vrm.git/blobdiff_plain/cb334b8afdb1d2133db56e1c5f22e0d5b999f42a..fbf9bf8ccfcd931b3e99429b2b0f392ada855a9c:/vrm.py diff --git a/vrm.py b/vrm.py index 726c83d..26a14d7 100755 --- a/vrm.py +++ b/vrm.py @@ -1,246 +1,2220 @@ #!BPY - """ Name: 'VRM' -Blender: 237 -Group: 'Export' -Tooltip: 'Vector Rendering Method Export Script' +Blender: 242 +Group: 'Render' +Tooltip: 'Vector Rendering Method script' +""" + +__author__ = "Antonio Ospite" +__url__ = ["http://projects.blender.org/projects/vrm"] +__version__ = "0.3.beta" + +__bpydoc__ = """\ + Render the scene and save the result in vector format. """ +# --------------------------------------------------------------------- +# Copyright (c) 2006 Antonio Ospite +# +# 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 St, Fifth Floor, Boston, MA 02110-1301 USA +# +# --------------------------------------------------------------------- +# +# Additional credits: +# Thanks to Emilio Aguirre for S2flender from which I took inspirations :) +# Thanks to Nikola Radovanovic, the author of the original VRM script, +# the code you read here has been rewritten _almost_ entirely +# from scratch but Nikola gave me the idea, so I thank him publicly. +# +# --------------------------------------------------------------------- +# +# Things TODO for a next release: +# - FIX the issue with negative scales in object tranformations! +# - Use a better depth sorting algorithm +# - Implement clipping of primitives and do handle object intersections. +# (for now only clipping away whole objects is supported). +# - Review how selections are made (this script uses selection states of +# primitives to represent visibility infos) +# - Use a data structure other than Mesh to represent the 2D image? +# Think to a way to merge (adjacent) polygons that have the same color. +# Or a way to use paths for silhouettes and contours. +# - Consider SMIL for animation handling instead of ECMA Script? (Firefox do +# not support SMIL for animations) +# - Switch to the Mesh structure, should be considerably faster +# (partially done, but with Mesh we cannot sort faces, yet) +# - Implement Edge Styles (silhouettes, contours, etc.) (partially done). +# - Implement Shading Styles? (partially done, to make more flexible). +# - Add Vector Writers other than SVG. +# - Check memory use!! +# - Support Indexed palettes!! (Useful for ILDA FILES, for example, +# see http://www.linux-laser.org/download/autotrace/ilda-output.patch) +# +# --------------------------------------------------------------------- +# +# Changelog: +# +# vrm-0.3.py - ... +# * First release after code restucturing. +# Now the script offers a useful set of functionalities +# and it can render animations, too. +# * Optimization in Renderer.doEdgeStyle(), build a topology cache +# so to speed up the lookup of adjacent faces of an edge. +# Thanks ideasman42. +# * The SVG output is now SVG 1.0 valid. +# Checked with: http://jiggles.w3.org/svgvalidator/ValidatorURI.html +# * Progress indicator during HSR. +# * Initial SWF output support +# * Fixed a bug in the animation code, now the projection matrix is +# recalculated at each frame! +# +# --------------------------------------------------------------------- + import Blender -from Blender import Scene, Object, Lamp, Camera +from Blender import Scene, Object, Mesh, NMesh, Material, Lamp, Camera, Window +from Blender.Mathutils import * from math import * -from Blender.Window import * -from Blender.Scene import Render +import sys, time + +# Constants +EPS = 10e-5 + +# We use a global progress Indicator Object +progress = None + + +# Some global settings + +class config: + polygons = dict() + polygons['SHOW'] = True + polygons['SHADING'] = 'FLAT' + #polygons['HSR'] = 'PAINTER' # 'PAINTER' or 'NEWELL' + polygons['HSR'] = 'PAINTER' + # Hidden to the user for now + polygons['EXPANSION_TRICK'] = True + + polygons['TOON_LEVELS'] = 2 + + edges = dict() + edges['SHOW'] = False + edges['SHOW_HIDDEN'] = False + edges['STYLE'] = 'MESH' # or SILHOUETTE + edges['STYLE'] = 'SILHOUETTE' + edges['WIDTH'] = 2 + edges['COLOR'] = [0, 0, 0] + + output = dict() + output['FORMAT'] = 'SVG' + output['FORMAT'] = 'SWF' + output['ANIMATION'] = True + output['JOIN_OBJECTS'] = True + + + +# Utility functions +def sign(x): + + if x < -EPS: + return -1 + elif x > EPS: + return 1 + else: + return 0 + + +# --------------------------------------------------------------------- +# +## Mesh Utility class +# +# --------------------------------------------------------------------- +class MeshUtils: + + def buildEdgeFaceUsersCache(me): + ''' + Takes a mesh and returns a list aligned with the meshes edges. + Each item is a list of the faces that use the edge + would be the equiv for having ed.face_users as a property + + Taken from .blender/scripts/bpymodules/BPyMesh.py, + thanks to ideasman_42. + ''' + + def sorted_edge_indicies(ed): + i1= ed.v1.index + i2= ed.v2.index + if i1>i2: + i1,i2= i2,i1 + return i1, i2 + + + face_edges_dict= dict([(sorted_edge_indicies(ed), (ed.index, [])) for ed in me.edges]) + for f in me.faces: + fvi= [v.index for v in f.v]# face vert idx's + for i in xrange(len(f)): + i1= fvi[i] + i2= fvi[i-1] + + if i1>i2: + i1,i2= i2,i1 + + face_edges_dict[i1,i2][1].append(f) + + face_edges= [None] * len(me.edges) + for ed_index, ed_faces in face_edges_dict.itervalues(): + face_edges[ed_index]= ed_faces + + return face_edges + + def isMeshEdge(adjacent_faces): + """Mesh edge rule. + + A mesh edge is visible if _at_least_one_ of its adjacent faces is selected. + Note: if the edge has no adjacent faces we want to show it as well, + useful for "edge only" portion of objects. + """ + + if len(adjacent_faces) == 0: + return True + + selected_faces = [f for f in adjacent_faces if f.sel] + + if len(selected_faces) != 0: + return True + else: + return False + + def isSilhouetteEdge(adjacent_faces): + """Silhuette selection rule. + + An edge is a silhuette edge if it is shared by two faces with + different selection status or if it is a boundary edge of a selected + face. + """ + if ((len(adjacent_faces) == 1 and adjacent_faces[0].sel == 1) or + (len(adjacent_faces) == 2 and + adjacent_faces[0].sel != adjacent_faces[1].sel) + ): + return True + else: + return False -# distance from camera Z' -def Distance(PX,PY,PZ): + buildEdgeFaceUsersCache = staticmethod(buildEdgeFaceUsersCache) + isMeshEdge = staticmethod(isMeshEdge) + isSilhouetteEdge = staticmethod(isSilhouetteEdge) + + +# --------------------------------------------------------------------- +# +## Shading Utility class +# +# --------------------------------------------------------------------- +class ShadingUtils: + + shademap = None + + def toonShadingMapSetup(): + levels = config.polygons['TOON_LEVELS'] + + texels = 2*levels - 1 + tmp_shademap = [0.0] + [(i)/float(texels-1) for i in xrange(1, texels-1) ] + [1.0] + + return tmp_shademap + + def toonShading(u): + + shademap = ShadingUtils.shademap + + if not shademap: + shademap = ShadingUtils.toonShadingMapSetup() + + v = 1.0 + for i in xrange(0, len(shademap)-1): + pivot = (shademap[i]+shademap[i+1])/2.0 + j = int(u>pivot) + + v = shademap[i+j] + + if v < shademap[i+1]: + return v + + return v + + toonShadingMapSetup = staticmethod(toonShadingMapSetup) + toonShading = staticmethod(toonShading) + + +# --------------------------------------------------------------------- +# +## Projections classes +# +# --------------------------------------------------------------------- + +class Projector: + """Calculate the projection of an object given the camera. + + A projector is useful to so some per-object transformation to obtain the + projection of an object given the camera. - dist = sqrt(PX*PX+PY*PY+PZ*PZ) - return dist + The main method is #doProjection# see the method description for the + parameter list. + """ + + def __init__(self, cameraObj, canvasRatio): + """Calculate the projection matrix. + + The projection matrix depends, in this case, on the camera settings. + TAKE CARE: This projector expects vertices in World Coordinates! + """ + + camera = cameraObj.getData() + + aspect = float(canvasRatio[0])/float(canvasRatio[1]) + near = camera.clipStart + far = camera.clipEnd + + scale = float(camera.scale) + + fovy = atan(0.5/aspect/(camera.lens/32)) + fovy = fovy * 360.0/pi + + # What projection do we want? + if camera.type == 0: + mP = self._calcPerspectiveMatrix(fovy, aspect, near, far) + elif camera.type == 1: + mP = self._calcOrthoMatrix(fovy, aspect, near, far, scale) + + # View transformation + cam = Matrix(cameraObj.getInverseMatrix()) + cam.transpose() + + mP = mP * cam + + self.projectionMatrix = mP + + ## + # Public methods + # + + def doProjection(self, v): + """Project the point on the view plane. + + Given a vertex calculate the projection using the current projection + matrix. + """ + + # Note that we have to work on the vertex using homogeneous coordinates + # From blender 2.42+ we don't need to resize the vector to be 4d + # when applying a 4x4 matrix, but we do that anyway since we need the + # 4th coordinate later + p = self.projectionMatrix * Vector(v).resize4D() + + # Perspective division + if p[3] != 0: + p[0] = p[0]/p[3] + p[1] = p[1]/p[3] + p[2] = p[2]/p[3] + + # restore the size + p[3] = 1.0 + p.resize3D() + + return p + -def RotatePoint(PX,PY,PZ,AngleX,AngleY,AngleZ): + ## + # Private methods + # - NewPoint = [] - # Rotate X - NewY = (PY * cos(AngleX))-(PZ * sin(AngleX)) - NewZ = (PZ * cos(AngleX))+(PY * sin(AngleX)) - # Rotate Y - PZ = NewZ - PY = NewY - NewZ = (PZ * cos(AngleY))-(PX * sin(AngleY)) - NewX = (PX * cos(AngleY))+(PZ * sin(AngleY)) - PX = NewX - PZ = NewZ - # Rotate Z - NewX = (PX * cos(AngleZ))-(PY * sin(AngleZ)) - NewY = (PY * cos(AngleZ))+(PX * sin(AngleZ)) - NewPoint.append(NewX) - NewPoint.append(NewY) - NewPoint.append(NewZ) - return NewPoint - -def vetmatmult(v, M): + def _calcPerspectiveMatrix(self, fovy, aspect, near, far): + """Return a perspective projection matrix. + """ + + top = near * tan(fovy * pi / 360.0) + bottom = -top + left = bottom*aspect + right= top*aspect + x = (2.0 * near) / (right-left) + y = (2.0 * near) / (top-bottom) + a = (right+left) / (right-left) + b = (top+bottom) / (top - bottom) + c = - ((far+near) / (far-near)) + d = - ((2*far*near)/(far-near)) + + m = Matrix( + [x, 0.0, a, 0.0], + [0.0, y, b, 0.0], + [0.0, 0.0, c, d], + [0.0, 0.0, -1.0, 0.0]) + + return m + + def _calcOrthoMatrix(self, fovy, aspect , near, far, scale): + """Return an orthogonal projection matrix. + """ + + # The 11 in the formula was found emiprically + top = near * tan(fovy * pi / 360.0) * (scale * 11) + bottom = -top + left = bottom * aspect + right= top * aspect + rl = right-left + tb = top-bottom + fn = near-far + tx = -((right+left)/rl) + ty = -((top+bottom)/tb) + tz = ((far+near)/fn) + + m = Matrix( + [2.0/rl, 0.0, 0.0, tx], + [0.0, 2.0/tb, 0.0, ty], + [0.0, 0.0, 2.0/fn, tz], + [0.0, 0.0, 0.0, 1.0]) + + return m + + +# --------------------------------------------------------------------- +# +## Progress Indicator +# +# --------------------------------------------------------------------- + +class Progress: + """A model for a progress indicator. + + Do the progress calculation calculation and + the view independent stuff of a progress indicator. + """ + def __init__(self, steps=0): + self.name = "" + self.steps = steps + self.completed = 0 + self.progress = 0 + + def setSteps(self, steps): + """Set the number of steps of the activity wich we want to track. + """ + self.steps = steps + + def getSteps(self): + return self.steps + + def setName(self, name): + """Set the name of the activity wich we want to track. + """ + self.name = name + + def getName(self): + return self.name + + def getProgress(self): + return self.progress + + def reset(self): + self.completed = 0 + self.progress = 0 + + def update(self): + """Update the model, call this method when one step is completed. + """ + if self.progress == 100: + return False + + self.completed += 1 + self.progress = ( float(self.completed) / float(self.steps) ) * 100 + self.progress = int(self.progress) + + return True + + +class ProgressIndicator: + """An abstraction of a View for the Progress Model + """ + def __init__(self): + + # Use a refresh rate so we do not show the progress at + # every update, but every 'self.refresh_rate' times. + self.refresh_rate = 10 + self.shows_counter = 0 + + self.quiet = False + + self.progressModel = None + + def setQuiet(self, value): + self.quiet = value + + def setActivity(self, name, steps): + """Initialize the Model. + + In a future version (with subactivities-progress support) this method + could only set the current activity. + """ + self.progressModel = Progress() + self.progressModel.setName(name) + self.progressModel.setSteps(steps) + + def getActivity(self): + return self.progressModel + + def update(self): + """Update the model and show the actual progress. + """ + assert(self.progressModel) + + if self.progressModel.update(): + if self.quiet: + return + + self.show(self.progressModel.getProgress(), + self.progressModel.getName()) + + # We return always True here so we can call the update() method also + # from lambda funcs (putting the call in logical AND with other ops) + return True + + def show(self, progress, name=""): + self.shows_counter = (self.shows_counter + 1) % self.refresh_rate + if self.shows_counter != 0: + return + + if progress == 100: + self.shows_counter = -1 + + +class ConsoleProgressIndicator(ProgressIndicator): + """Show a progress bar on stderr, a la wget. + """ + def __init__(self): + ProgressIndicator.__init__(self) + + self.swirl_chars = ["-", "\\", "|", "/"] + self.swirl_count = -1 + + def show(self, progress, name): + ProgressIndicator.show(self, progress, name) + + bar_length = 70 + bar_progress = int( (progress/100.0) * bar_length ) + bar = ("=" * bar_progress).ljust(bar_length) + + self.swirl_count = (self.swirl_count+1)%len(self.swirl_chars) + swirl_char = self.swirl_chars[self.swirl_count] + + progress_bar = "%s |%s| %c %3d%%" % (name, bar, swirl_char, progress) + + sys.stderr.write(progress_bar+"\r") + if progress == 100: + sys.stderr.write("\n") + + +class GraphicalProgressIndicator(ProgressIndicator): + """Interface to the Blender.Window.DrawProgressBar() method. + """ + def __init__(self): + ProgressIndicator.__init__(self) + + #self.swirl_chars = ["-", "\\", "|", "/"] + # We have to use letters with the same width, for now! + # Blender progress bar considers the font widths when + # calculating the progress bar width. + self.swirl_chars = ["\\", "/"] + self.swirl_count = -1 + + def show(self, progress, name): + ProgressIndicator.show(self, progress) + + self.swirl_count = (self.swirl_count+1)%len(self.swirl_chars) + swirl_char = self.swirl_chars[self.swirl_count] + + progress_text = "%s - %c %3d%%" % (name, swirl_char, progress) + + # Finally draw the Progress Bar + Window.WaitCursor(1) # Maybe we can move that call in the constructor? + Window.DrawProgressBar(progress/100.0, progress_text) + + if progress == 100: + Window.DrawProgressBar(1, progress_text) + Window.WaitCursor(0) + + + +# --------------------------------------------------------------------- +# +## 2D Object representation class +# +# --------------------------------------------------------------------- + +# TODO: a class to represent the needed properties of a 2D vector image +# For now just using a [N]Mesh structure. + + +# --------------------------------------------------------------------- +# +## Vector Drawing Classes +# +# --------------------------------------------------------------------- + +## A generic Writer + +class VectorWriter: + """ + A class for printing output in a vectorial format. + + Given a 2D representation of the 3D scene the class is responsible to + write it is a vector format. + + Every subclasses of VectorWriter must have at last the following public + methods: + - open(self) + - close(self) + - printCanvas(self, scene, + doPrintPolygons=True, doPrintEdges=False, showHiddenEdges=False): + """ - v2 = [0, 0, 0, 0] + def __init__(self, fileName): + """Set the output file name and other properties""" + + self.outputFileName = fileName + self.file = None + + context = Scene.GetCurrent().getRenderingContext() + self.canvasSize = ( context.imageSizeX(), context.imageSizeY() ) + + self.startFrame = 1 + self.endFrame = 1 + self.animation = False + + + ## + # Public Methods + # - for i in range(0, 3): - for j in range(0, 3): - v2[i] += (v[i]*M[i][j]) + def open(self, startFrame=1, endFrame=1): + if startFrame != endFrame: + self.startFrame = startFrame + self.endFrame = endFrame + self.animation = True + + self.file = open(self.outputFileName, "w") + print "Outputting to: ", self.outputFileName + + return - return v2 + def close(self): + if self.file: + self.file.close() + return -def flatern(vertx, verty, vertz): + def printCanvas(self, scene, doPrintPolygons=True, doPrintEdges=False, + showHiddenEdges=False): + """This is the interface for the needed printing routine. + """ + return + - cam = Camera.get() # Get the cameras in scene - Lens = cam[0].getLens() # The First Blender camera lens +## SVG Writer - camTyp = cam[0].getType() +class SVGVectorWriter(VectorWriter): + """A concrete class for writing SVG output. + """ - msize = (context.imageSizeX(), context.imageSizeY()) - xres = msize[0] # X res for output - yres = msize[1] # Y res for output - ratio = xres/yres + def __init__(self, fileName): + """Simply call the parent Contructor. + """ + VectorWriter.__init__(self, fileName) + + + ## + # Public Methods + # + + def open(self, startFrame=1, endFrame=1): + """Do some initialization operations. + """ + VectorWriter.open(self, startFrame, endFrame) + self._printHeader() + + def close(self): + """Do some finalization operation. + """ + self._printFooter() + + # remember to call the close method of the parent + VectorWriter.close(self) + + + def printCanvas(self, scene, doPrintPolygons=True, doPrintEdges=False, + showHiddenEdges=False): + """Convert the scene representation to SVG. + """ + + Objects = scene.getChildren() + + context = scene.getRenderingContext() + framenumber = context.currentFrame() + + if self.animation: + framestyle = "display:none" + else: + framestyle = "display:block" + + # Assign an id to this group so we can set properties on it using DOM + self.file.write("\n" % + (framenumber, framestyle) ) + + + for obj in Objects: + + if(obj.getType() != 'Mesh'): + continue + + self.file.write("\n" % obj.getName()) + + mesh = obj.getData(mesh=1) + + if doPrintPolygons: + self._printPolygons(mesh) + + if doPrintEdges: + self._printEdges(mesh, showHiddenEdges) + + self.file.write("\n") + + self.file.write("\n") - fov = atan(ratio * 16.0 / Lens) # Get fov stuff - dist = xres/2*tan(fov) # Calculate dist from pinhole camera to image plane + ## + # Private Methods + # + + def _calcCanvasCoord(self, v): + """Convert vertex in scene coordinates to canvas coordinates. + """ + + pt = Vector([0, 0, 0]) + + mW = float(self.canvasSize[0])/2.0 + mH = float(self.canvasSize[1])/2.0 + + # rescale to canvas size + pt[0] = v.co[0]*mW + mW + pt[1] = v.co[1]*mH + mH + pt[2] = v.co[2] + + # For now we want (0,0) in the top-left corner of the canvas. + # Mirror and translate along y + pt[1] *= -1 + pt[1] += self.canvasSize[1] + + return pt + + def _printHeader(self): + """Print SVG header.""" + + self.file.write("\n") + self.file.write("\n") + self.file.write("\n\n" % + self.canvasSize) + + if self.animation: + + self.file.write("""\n\n + \n""" % (self.startFrame, self.endFrame, self.startFrame) ) + + def _printFooter(self): + """Print the SVG footer.""" + + self.file.write("\n\n") - screenxy=[0,0] - x=-vertx - y=verty - z=vertz + def _printPolygons(self, mesh): + """Print the selected (visible) polygons. + """ - #---------------------------- - # calculate x'=dist*x/z & y'=dist*x/z - #---------------------------- - screenxy[0]=int(xres/2.0+4*x*dist/z) - screenxy[1]=int(yres/2.0+4*y*dist/z) - return screenxy + if len(mesh.faces) == 0: + return + self.file.write("\n") -######## -# Main # -######## + for face in mesh.faces: + if not face.sel: + continue -scena = Scene.GetCurrent() -context = scena.getRenderingContext() -renderDir = context.getRenderPath() + self.file.write("\n") + + self.file.write("\n") + + def _printEdges(self, mesh, showHiddenEdges=False): + """Print the wireframe using mesh edges. + """ + + stroke_width = config.edges['WIDTH'] + stroke_col = config.edges['COLOR'] + + self.file.write("\n") + + for e in mesh.edges: + + hidden_stroke_style = "" + + if e.sel == 0: + if showHiddenEdges == False: + continue + else: + hidden_stroke_style = ";\n stroke-dasharray:3, 3" + + p1 = self._calcCanvasCoord(e.v1) + p2 = self._calcCanvasCoord(e.v2) + + self.file.write("\n") -file.write("\n") -file.write("\n") -#file.write("\n") + self.file.write("\n") -Objects = Blender.Object.Get() -NUMobjects = len(Objects) -startFrm = context.startFrame() -endFrm = startFrm -#endFrm = context.endFrame() -frames = range(startFrm, endFrm+1) +## SWF Writer -# are we rendering an animation ? -animation = (len(frames) > 1) +from ming import * -camera = scena.getCurrentCamera() # Get the current camera +class SWFVectorWriter(VectorWriter): + """A concrete class for writing SWF output. + """ -for f in frames: - context.currentFrame(f) - Blender.Set('curframe', f) + def __init__(self, fileName): + """Simply call the parent Contructor. + """ + VectorWriter.__init__(self, fileName) - DrawProgressBar (f/len(frames),"Rendering ..." + str(f)) + self.movie = None + self.sprite = None - print "Frame: ", f, "\n" - if animation : - file.write("\n") - for o in Objects: + ## + # Public Methods + # - if o.getType() == "Mesh": + def open(self, startFrame=1, endFrame=1): + """Do some initialization operations. + """ + VectorWriter.open(self, startFrame, endFrame) + self.movie = SWFMovie() + self.movie.setDimension(self.canvasSize[0], self.canvasSize[1]) + # set fps + self.movie.setRate(25) + numframes = endFrame - startFrame + 1 + self.movie.setFrames(numframes) - obj = o # Get the first selected object - objname = obj.name # The object name + def close(self): + """Do some finalization operation. + """ + self.movie.save(self.outputFileName) + # remember to call the close method of the parent + VectorWriter.close(self) - OBJmesh = obj.getData() # Get the mesh data for the object - meshfaces = OBJmesh.faces # The number of faces in the object + def printCanvas(self, scene, doPrintPolygons=True, doPrintEdges=False, + showHiddenEdges=False): + """Convert the scene representation to SVG. + """ + context = scene.getRenderingContext() + framenumber = context.currentFrame() - #------------ - # Get the Material Colors - #------------ + Objects = scene.getChildren() + + if self.sprite: + self.movie.remove(self.sprite) + + sprite = SWFSprite() + + for obj in Objects: + + if(obj.getType() != 'Mesh'): + continue + + mesh = obj.getData(mesh=1) + + if doPrintPolygons: + self._printPolygons(mesh, sprite) + + if doPrintEdges: + self._printEdges(mesh, sprite, showHiddenEdges) - #MATinfo = OBJmesh.getMaterials() - # - #if len(MATinfo) > 0: - # RGB=MATinfo[0].rgbCol - # R=int(RGB[0]*255) - # G=int(RGB[1]*255) - # B=int(RGB[2]*255) - # color=`R`+"."+`G`+"."+`B` - # print color - #else: - # color="100.100.100" - - - for face in range(0, len(meshfaces)): - numvert = len(OBJmesh.faces[face]) + sprite.nextFrame() + i = self.movie.add(sprite) + # Remove the instance the next time + self.sprite = i + if self.animation: + self.movie.nextFrame() + + + ## + # Private Methods + # + + def _calcCanvasCoord(self, v): + """Convert vertex in scene coordinates to canvas coordinates. + """ + + pt = Vector([0, 0, 0]) + + mW = float(self.canvasSize[0])/2.0 + mH = float(self.canvasSize[1])/2.0 + + # rescale to canvas size + pt[0] = v.co[0]*mW + mW + pt[1] = v.co[1]*mH + mH + pt[2] = v.co[2] + + # For now we want (0,0) in the top-left corner of the canvas. + # Mirror and translate along y + pt[1] *= -1 + pt[1] += self.canvasSize[1] + + return pt - #if (isVisible(face)): - # print "face visible" - - # backface culling - a = [] - a.append(OBJmesh.faces[face][0][0]) - a.append(OBJmesh.faces[face][0][1]) - a.append(OBJmesh.faces[face][0][2]) - a = RotatePoint(a[0], a[1], a[2], obj.RotX, obj.RotY, obj.RotZ) - a[0] += obj.LocX - camera.LocX - a[1] += obj.LocY - camera.LocY - a[2] += obj.LocZ - camera.LocZ - b = [] - b.append(OBJmesh.faces[face][1][0]) - b.append(OBJmesh.faces[face][1][1]) - b.append(OBJmesh.faces[face][1][2]) - b = RotatePoint(b[0], b[1], b[2], obj.RotX, obj.RotY, obj.RotZ) - b[0] += obj.LocX - camera.LocX - b[1] += obj.LocY - camera.LocY - b[2] += obj.LocZ - camera.LocZ - c = [] - c.append(OBJmesh.faces[face][numvert-1][0]) - c.append(OBJmesh.faces[face][numvert-1][1]) - c.append(OBJmesh.faces[face][numvert-1][2]) - c = RotatePoint(c[0], c[1], c[2], obj.RotX, obj.RotY, obj.RotZ) - c[0] += obj.LocX - camera.LocX - c[1] += obj.LocY - camera.LocY - c[2] += obj.LocZ - camera.LocZ - - norm = [0,0,0] - norm[0] = (b[1] - a[1])*(c[2] - a[2]) - (c[1] - a[1])*(b[2] - a[2]) - norm[1] = -((b[0] - a[0])*(c[2] - a[2]) - (c[0] - a[0])*(b[2] - a[2])) - norm[2] = (b[0] - a[0])*(c[1] - a[1]) - (c[0] - a[0])*(b[1] - a[1]) - - d = norm[0]*a[0] + norm[1]*a[1] + norm[2]*a[2] - - # if the face is visible flatten it on the "picture plane" - if d < 0: - file.write("\n") - -file.write("") -file.close() -DrawProgressBar (1.0,"Finished.") -print "Finished\n" + facelist.remove(Q) + facelist.insert(0, Q) + Q.smooth = 1 + face_marked = 1 + debug("Q marked!\n") + break + + # Write P! + if split_done == 0 and face_marked == 0: + facelist.remove(P) + maplist.append(P) + + progress.update() + + #if facelist == None: + # maplist = [P, Q] + # print [v.co for v in P] + # print [v.co for v in Q] + # break + + # end of while len(facelist) + + + nmesh.faces = maplist + for f in nmesh.faces: + f.sel = 1 + + nmesh.update() + + + def _doHiddenSurfaceRemoval(self, mesh): + """Do HSR for the given mesh. + """ + if len(mesh.faces) == 0: + return + + if config.polygons['HSR'] == 'PAINTER': + print "\nUsing the Painter algorithm for HSR." + self.__simpleDepthSort(mesh) + + elif config.polygons['HSR'] == 'NEWELL': + print "\nUsing the Newell's algorithm for HSR." + self.__newellDepthSort(mesh) + + + def _doEdgesStyle(self, mesh, edgestyleSelect): + """Process Mesh Edges accroding to a given selection style. + + Examples of algorithms: + + Contours: + given an edge if its adjacent faces have the same normal (that is + they are complanar), than deselect it. + + Silhouettes: + given an edge if one its adjacent faces is frontfacing and the + other is backfacing, than select it, else deselect. + """ + + Mesh.Mode(Mesh.SelectModes['EDGE']) + + edge_cache = MeshUtils.buildEdgeFaceUsersCache(mesh) + + for i,edge_faces in enumerate(edge_cache): + mesh.edges[i].sel = 0 + if edgestyleSelect(edge_faces): + mesh.edges[i].sel = 1 + + """ + for e in mesh.edges: + + e.sel = 0 + if edgestyleSelect(e, mesh): + e.sel = 1 + """ + + + +# --------------------------------------------------------------------- +# +## GUI Class and Main Program +# +# --------------------------------------------------------------------- + + +from Blender import BGL, Draw +from Blender.BGL import * + +class GUI: + + def _init(): + + # Output Format menu + output_format = config.output['FORMAT'] + default_value = outputWriters.keys().index(output_format)+1 + GUI.outFormatMenu = Draw.Create(default_value) + GUI.evtOutFormatMenu = 0 + + # Animation toggle button + GUI.animToggle = Draw.Create(config.output['ANIMATION']) + GUI.evtAnimToggle = 1 + + # Join Objects toggle button + GUI.joinObjsToggle = Draw.Create(config.output['JOIN_OBJECTS']) + GUI.evtJoinObjsToggle = 2 + + # Render filled polygons + GUI.polygonsToggle = Draw.Create(config.polygons['SHOW']) + + # Shading Style menu + shading_style = config.polygons['SHADING'] + default_value = shadingStyles.keys().index(shading_style)+1 + GUI.shadingStyleMenu = Draw.Create(default_value) + GUI.evtShadingStyleMenu = 21 + + GUI.evtPolygonsToggle = 3 + # We hide the config.polygons['EXPANSION_TRICK'], for now + + # Render polygon edges + GUI.showEdgesToggle = Draw.Create(config.edges['SHOW']) + GUI.evtShowEdgesToggle = 4 + + # Render hidden edges + GUI.showHiddenEdgesToggle = Draw.Create(config.edges['SHOW_HIDDEN']) + GUI.evtShowHiddenEdgesToggle = 5 + + # Edge Style menu + edge_style = config.edges['STYLE'] + default_value = edgeStyles.keys().index(edge_style)+1 + GUI.edgeStyleMenu = Draw.Create(default_value) + GUI.evtEdgeStyleMenu = 6 + + # Edge Width slider + GUI.edgeWidthSlider = Draw.Create(config.edges['WIDTH']) + GUI.evtEdgeWidthSlider = 7 + + # Edge Color Picker + c = config.edges['COLOR'] + GUI.edgeColorPicker = Draw.Create(c[0]/255.0, c[1]/255.0, c[2]/255.0) + GUI.evtEdgeColorPicker = 71 + + # Render Button + GUI.evtRenderButton = 8 + + # Exit Button + GUI.evtExitButton = 9 + + def draw(): + + # initialize static members + GUI._init() + + glClear(GL_COLOR_BUFFER_BIT) + glColor3f(0.0, 0.0, 0.0) + glRasterPos2i(10, 350) + Draw.Text("VRM: Vector Rendering Method script. Version %s." % + __version__) + glRasterPos2i(10, 335) + Draw.Text("Press Q or ESC to quit.") + + # Build the output format menu + glRasterPos2i(10, 310) + Draw.Text("Select the output Format:") + outMenuStruct = "Output Format %t" + for t in outputWriters.keys(): + outMenuStruct = outMenuStruct + "|%s" % t + GUI.outFormatMenu = Draw.Menu(outMenuStruct, GUI.evtOutFormatMenu, + 10, 285, 160, 18, GUI.outFormatMenu.val, "Choose the Output Format") + + # Animation toggle + GUI.animToggle = Draw.Toggle("Animation", GUI.evtAnimToggle, + 10, 260, 160, 18, GUI.animToggle.val, + "Toggle rendering of animations") + + # Join Objects toggle + GUI.joinObjsToggle = Draw.Toggle("Join objects", GUI.evtJoinObjsToggle, + 10, 235, 160, 18, GUI.joinObjsToggle.val, + "Join objects in the rendered file") + + # Render Button + Draw.Button("Render", GUI.evtRenderButton, 10, 210-25, 75, 25+18, + "Start Rendering") + Draw.Button("Exit", GUI.evtExitButton, 95, 210-25, 75, 25+18, "Exit!") + + # Rendering Styles + glRasterPos2i(200, 310) + Draw.Text("Rendering Style:") + + # Render Polygons + GUI.polygonsToggle = Draw.Toggle("Filled Polygons", GUI.evtPolygonsToggle, + 200, 285, 160, 18, GUI.polygonsToggle.val, + "Render filled polygons") + + if GUI.polygonsToggle.val == 1: + + # Polygon Shading Style + shadingStyleMenuStruct = "Shading Style %t" + for t in shadingStyles.keys(): + shadingStyleMenuStruct = shadingStyleMenuStruct + "|%s" % t.lower() + GUI.shadingStyleMenu = Draw.Menu(shadingStyleMenuStruct, GUI.evtShadingStyleMenu, + 200, 260, 160, 18, GUI.shadingStyleMenu.val, + "Choose the shading style") + + + # Render Edges + GUI.showEdgesToggle = Draw.Toggle("Show Edges", GUI.evtShowEdgesToggle, + 200, 235, 160, 18, GUI.showEdgesToggle.val, + "Render polygon edges") + + if GUI.showEdgesToggle.val == 1: + + # Edge Style + edgeStyleMenuStruct = "Edge Style %t" + for t in edgeStyles.keys(): + edgeStyleMenuStruct = edgeStyleMenuStruct + "|%s" % t.lower() + GUI.edgeStyleMenu = Draw.Menu(edgeStyleMenuStruct, GUI.evtEdgeStyleMenu, + 200, 210, 160, 18, GUI.edgeStyleMenu.val, + "Choose the edge style") + + # Edge size + GUI.edgeWidthSlider = Draw.Slider("Width: ", GUI.evtEdgeWidthSlider, + 200, 185, 140, 18, GUI.edgeWidthSlider.val, + 0.0, 10.0, 0, "Change Edge Width") + + # Edge Color + GUI.edgeColorPicker = Draw.ColorPicker(GUI.evtEdgeColorPicker, + 342, 185, 18, 18, GUI.edgeColorPicker.val, "Choose Edge Color") + + # Show Hidden Edges + GUI.showHiddenEdgesToggle = Draw.Toggle("Show Hidden Edges", + GUI.evtShowHiddenEdgesToggle, + 200, 160, 160, 18, GUI.showHiddenEdgesToggle.val, + "Render hidden edges as dashed lines") + + glRasterPos2i(10, 160) + Draw.Text("%s (c) 2006" % __author__) + + def event(evt, val): + + if evt == Draw.ESCKEY or evt == Draw.QKEY: + Draw.Exit() + else: + return + + Draw.Redraw(1) + + def button_event(evt): + + if evt == GUI.evtExitButton: + Draw.Exit() + + elif evt == GUI.evtOutFormatMenu: + i = GUI.outFormatMenu.val - 1 + config.output['FORMAT']= outputWriters.keys()[i] + + elif evt == GUI.evtAnimToggle: + config.output['ANIMATION'] = bool(GUI.animToggle.val) + + elif evt == GUI.evtJoinObjsToggle: + config.output['JOIN_OBJECTS'] = bool(GUI.joinObjsToggle.val) + + elif evt == GUI.evtPolygonsToggle: + config.polygons['SHOW'] = bool(GUI.polygonsToggle.val) + + elif evt == GUI.evtShadingStyleMenu: + i = GUI.shadingStyleMenu.val - 1 + config.polygons['SHADING'] = shadingStyles.keys()[i] + + elif evt == GUI.evtShowEdgesToggle: + config.edges['SHOW'] = bool(GUI.showEdgesToggle.val) + + elif evt == GUI.evtShowHiddenEdgesToggle: + config.edges['SHOW_HIDDEN'] = bool(GUI.showHiddenEdgesToggle.val) + + elif evt == GUI.evtEdgeStyleMenu: + i = GUI.edgeStyleMenu.val - 1 + config.edges['STYLE'] = edgeStyles.keys()[i] + + elif evt == GUI.evtEdgeWidthSlider: + config.edges['WIDTH'] = float(GUI.edgeWidthSlider.val) + + elif evt == GUI.evtEdgeColorPicker: + config.edges['COLOR'] = [int(c*255.0) for c in GUI.edgeColorPicker.val] + + elif evt == GUI.evtRenderButton: + label = "Save %s" % config.output['FORMAT'] + # Show the File Selector + global outputfile + Blender.Window.FileSelector(vectorize, label, outputfile) + + else: + print "Event: %d not handled!" % evt + + if evt: + Draw.Redraw(1) + #GUI.conf_debug() + + def conf_debug(): + from pprint import pprint + print "\nConfig" + pprint(config.output) + pprint(config.polygons) + pprint(config.edges) + + _init = staticmethod(_init) + draw = staticmethod(draw) + event = staticmethod(event) + button_event = staticmethod(button_event) + conf_debug = staticmethod(conf_debug) + +# A wrapper function for the vectorizing process +def vectorize(filename): + """The vectorizing process is as follows: + + - Instanciate the writer and the renderer + - Render! + """ + + if filename == "": + print "\nERROR: invalid file name!" + return + + from Blender import Window + editmode = Window.EditMode() + if editmode: Window.EditMode(0) + + actualWriter = outputWriters[config.output['FORMAT']] + writer = actualWriter(filename) + + renderer = Renderer() + renderer.doRendering(writer, config.output['ANIMATION']) + + if editmode: Window.EditMode(1) + +# Here the main +if __name__ == "__main__": + + global progress + + outputfile = "" + basename = Blender.sys.basename(Blender.Get('filename')) + if basename != "": + outputfile = Blender.sys.splitext(basename)[0] + "." + str(config.output['FORMAT']).lower() + + if Blender.mode == 'background': + progress = ConsoleProgressIndicator() + vectorize(outputfile) + else: + progress = GraphicalProgressIndicator() + Draw.Register(GUI.draw, GUI.event, GUI.button_event)