#!BPY
"""
Name: 'VRM'
-Blender: 241
+Blender: 242
Group: 'Render'
Tooltip: 'Vector Rendering Method script'
"""
# Think to a way to merge adjacent polygons that have the same color.
# Or a way to use paths for silhouettes and contours.
# - Add Vector Writers other that SVG.
-# - Consider SMIL for animation handling instead of ECMA Script?
+# - Consider SMIL for animation handling instead of ECMA Script? (Firefox do
+# not support SMIL for animations)
+# - FIX the issue with negative scales in object tranformations!
#
# ---------------------------------------------------------------------
#
# Some global settings
-PRINT_POLYGONS = True
+class config:
+ polygons = dict()
+ polygons['FILL'] = True
+ polygons['STYLE'] = None
+ # Hidden to the user for now
+ polygons['EXPANSION_TRICK'] = True
-POLYGON_EXPANSION_TRICK = True # Hidden to the user for now
+ edges = dict()
+ edges['SHOW'] = True
+ edges['SHOW_HIDDEN'] = False
+ edges['STYLE'] = 'silhouette'
+ edges['WIDTH'] = 2
-PRINT_EDGES = False
-SHOW_HIDDEN_EDGES = False
-EDGE_STYLE = 'silhouette'
-EDGES_WIDTH = 0.5
-
-RENDER_ANIMATION = False
-
-OPTIMIZE_FOR_SPACE = True
-
-OUTPUT_FORMAT = 'SVG'
+ output = dict()
+ output['FORMAT'] = 'SVG'
+ output['ANIMATION'] = False
+ output['MERGED_OBJECTS'] = True
else:
return False
+ def toonShading(u):
+
+ levels = 2
+ texels = 2*levels - 1
+ map = [0.0] + [(i)/float(texels-1) for i in range(1, texels-1) ] + [1.0]
+
+ v = 1.0
+ for i in range(0, len(map)-1):
+ pivot = (map[i]+map[i+1])/2.0
+ j = int(u>pivot)
+
+ v = map[i+j]
+
+ if v<map[i+1]:
+ return v
+
+ return v
+
+
getEdgeAdjacentFaces = staticmethod(getEdgeAdjacentFaces)
isVisibleEdge = staticmethod(isVisibleEdge)
isSilhouetteEdge = staticmethod(isSilhouetteEdge)
+ toonShading = staticmethod(toonShading)
self.file.write("<g id=\"frame%d\" style=\"%s\">\n" %
(framenumber, framestyle) )
+
for obj in Objects:
if(obj.getType() != 'Mesh'):
self.file.write("\tstyle=\"fill:" + str_col + ";")
self.file.write(opacity_string)
- if POLYGON_EXPANSION_TRICK:
+ if config.polygons['EXPANSION_TRICK']:
self.file.write(" stroke:" + str_col + ";")
self.file.write(" stroke-width:" + str(stroke_width) + ";\n")
self.file.write(" stroke-linecap:round;stroke-linejoin:round")
hidden_stroke_style = ""
- # We consider an edge visible if _both_ its vertices are selected,
- # hence an edge is hidden if _any_ of its vertices is deselected.
if e.sel == 0:
if showHiddenEdges == False:
continue
# Render from the currently active camera
self.cameraObj = self._SCENE.getCurrentCamera()
+ # Get a projector for this camera.
+ # NOTE: the projector wants object in world coordinates,
+ # so we should remember to apply modelview transformations
+ # _before_ we do projection transformations.
+ self.proj = Projector(self.cameraObj, self.canvasRatio)
+
# Get the list of lighting sources
obj_lst = self._SCENE.getChildren()
self.lights = [ o for o in obj_lst if o.getType() == 'Lamp']
for f in range(startFrame, endFrame+1):
context.currentFrame(f)
- renderedScene = self.doRenderScene(self._SCENE)
+ # Use some temporary workspace, a full copy of the scene
+ inputScene = self._SCENE.copy(2)
+
+ print "Before"
+
+ try:
+ renderedScene = self.doRenderScene(inputScene)
+ except:
+ self._SCENE.makeCurrent()
+ Scene.unlink(inputScene)
+ del inputScene
+
outputWriter.printCanvas(renderedScene,
- doPrintPolygons = PRINT_POLYGONS,
- doPrintEdges = PRINT_EDGES,
- showHiddenEdges = SHOW_HIDDEN_EDGES)
+ doPrintPolygons = config.polygons['FILL'],
+ doPrintEdges = config.edges['SHOW'],
+ showHiddenEdges = config.edges['SHOW_HIDDEN'])
+ print "After"
+
# clear the rendered scene
self._SCENE.makeCurrent()
Scene.unlink(renderedScene)
context.currentFrame(currentFrame)
- def doRenderScene(self, inputScene):
+ def doRenderScene(self, workScene):
"""Control the rendering process.
Here we control the entire rendering process invoking the operation
needed to transform and project the 3D scene in two dimensions.
"""
- # Use some temporary workspace, a full copy of the scene
- workScene = inputScene.copy(2)
-
- # Get a projector for this scene.
- # NOTE: the projector wants object in world coordinates,
- # so we should apply modelview transformations _before_
- # projection transformations
- proj = Projector(self.cameraObj, self.canvasRatio)
-
# global processing of the scene
self._doConvertGeometricObjToMesh(workScene)
self._doEdgesStyle(mesh, edgeSelectionStyles[EDGE_STYLE])
- self._doProjection(mesh, proj)
+ self._doProjection(mesh, self.proj)
# Update the object data, important! :)
mesh.update()
def _joinMeshObjectsInScene(self, scene):
"""Merge all the Mesh Objects in a scene into a single Mesh Object.
"""
+
+ oList = [o for o in scene.getChildren() if o.getType()=='Mesh']
+
+ # FIXME: Object.join() do not work if the list contains 1 object
+ if len(oList) == 1:
+ return
+
mesh = Mesh.New()
bigObj = Object.New('Mesh', 'BigOne')
bigObj.link(mesh)
- oList = [o for o in scene.getChildren() if o.getType()=='Mesh']
bigObj.join(oList)
scene.link(bigObj)
for o in oList:
This step is done simply applying to the object its tranformation
matrix and recalculating its normals.
"""
+ # XXX FIXME: blender do not transform normals in the right way when
+ # there are negative scale values
+ if matrix[0][0] < 0 or matrix[1][1] < 0 or matrix[2][2] < 0:
+ print "WARNING: Negative scales, expect incorrect results!"
+
mesh.transform(matrix, True)
def _doObjectDepthSorting(self, mesh):
# Diffuse component (add light.col for kd)
kd = mat.getRef() * Vector(mat.getRGBCol())
Ip = light.getEnergy()
- Idiff = Ip * kd * (N*L)
-
+ #Idiff = Ip * kd * int(N*L > 0.5)
+ Idiff = Ip * kd * MeshUtils.toonShading(N*L)
+
# Specular component
ks = mat.getSpec() * Vector(mat.getSpecCol())
ns = mat.getHardness()
- Ispec = Ip * ks * pow((V * R), ns)
+ Ispec = Ip * ks * pow((V*R), ns)
# Emissive component
ki = Vector([mat.getEmit()]*3)
I = ki + Iamb + Idiff + Ispec
+
# Set Alpha component
I = list(I)
I.append(mat.getAlpha())
+ # Toon shading
+ #I = [MeshUtils.toonShading(c) for c in I]
+
# Clamp I values between 0 and 1
I = [ min(c, 1) for c in I]
I = [ max(0, c) for c in I]
for e in mesh.edges:
+ e.sel = 0
if edgestyleSelect(e, mesh):
e.sel = 1
- else:
- e.sel = 0
def _doProjection(self, mesh, projector):
"""Calculate the Projection for the object.
def _init():
# Output Format menu
- default_value = outputWriters.keys().index(OUTPUT_FORMAT)+1
+ 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(RENDER_ANIMATION)
+ GUI.animToggle = Draw.Create(config.output['ANIMATION'])
GUI.evtAnimToggle = 1
# Join Objects toggle button
- GUI.joinObjsToggle = Draw.Create(OPTIMIZE_FOR_SPACE)
+ GUI.joinObjsToggle = Draw.Create(config.output['MERGED_OBJECTS'])
GUI.evtJoinObjsToggle = 2
# Render filled polygons
- GUI.polygonsToggle = Draw.Create(PRINT_POLYGONS)
+ GUI.polygonsToggle = Draw.Create(config.polygons['FILL'])
+
GUI.evtPolygonsToggle = 3
- # We hide the POLYGON_EXPANSION_TRICK, for now
+ # We hide the config.polygons['EXPANSION_TRICK'], for now
# Render polygon edges
- GUI.showEdgesToggle = Draw.Create(PRINT_EDGES)
+ GUI.showEdgesToggle = Draw.Create(config.edges['SHOW'])
GUI.evtShowEdgesToggle = 4
# Render hidden edges
- GUI.showHiddenEdgesToggle = Draw.Create(SHOW_HIDDEN_EDGES)
+ GUI.showHiddenEdgesToggle = Draw.Create(config.edges['SHOW_HIDDEN'])
GUI.evtShowHiddenEdgesToggle = 5
# Edge Style menu
- default_value = edgeSelectionStyles.keys().index(EDGE_STYLE)+1
+ edge_style = config.edges['STYLE']
+ default_value = edgeSelectionStyles.keys().index(edge_style)+1
GUI.edgeStyleMenu = Draw.Create(default_value)
GUI.evtEdgeStyleMenu = 6
# Edge Width slider
- GUI.edgeWidthSlider = Draw.Create(EDGES_WIDTH)
+ GUI.edgeWidthSlider = Draw.Create(config.edges['WIDTH'])
GUI.evtEdgeWidthSlider = 7
# Render Button
Draw.Redraw(1)
def button_event(evt):
- global PRINT_POLYGONS
- global POLYGON_EXPANSION_TRICK
- global PRINT_EDGES
- global SHOW_HIDDEN_EDGES
- global EDGE_STYLE
- global EDGES_WIDTH
- global RENDER_ANIMATION
- global OPTIMIZE_FOR_SPACE
- global OUTPUT_FORMAT
if evt == GUI.evtExitButton:
Draw.Exit()
+
elif evt == GUI.evtOutFormatMenu:
i = GUI.outFormatMenu.val - 1
- OUTPUT_FORMAT = outputWriters.keys()[i]
+ config.output['FORMAT']= outputWriters.keys()[i]
+
elif evt == GUI.evtAnimToggle:
- RENDER_ANIMATION = bool(GUI.animToggle.val)
+ config.outpur['ANIMATION'] = bool(GUI.animToggle.val)
+
elif evt == GUI.evtJoinObjsToggle:
- OPTIMIZE_FOR_SPACE = bool(GUI.joinObjsToggle.val)
+ config.output['MERGED_OBJECTS'] = bool(GUI.joinObjsToggle.val)
+
elif evt == GUI.evtPolygonsToggle:
- PRINT_POLYGONS = bool(GUI.polygonsToggle.val)
+ config.polygons['FILL'] = bool(GUI.polygonsToggle.val)
+
elif evt == GUI.evtShowEdgesToggle:
- PRINT_EDGES = bool(GUI.showEdgesToggle.val)
+ config.edges['SHOW'] = bool(GUI.showEdgesToggle.val)
+
elif evt == GUI.evtShowHiddenEdgesToggle:
- SHOW_HIDDEN_EDGES = bool(GUI.showHiddenEdgesToggle.val)
+ config.edges['SHOW_HIDDEN'] = bool(GUI.showHiddenEdgesToggle.val)
+
elif evt == GUI.evtEdgeStyleMenu:
i = GUI.edgeStyleMenu.val - 1
- EDGE_STYLE = edgeSelectionStyles.keys()[i]
+ config.edges['STYLE'] = edgeSelectionStyles.keys()[i]
+
elif evt == GUI.evtEdgeWidthSlider:
- EDGES_WIDTH = float(GUI.edgeWidthSlider.val)
+ config.edges['WIDTH'] = float(GUI.edgeWidthSlider.val)
+
elif evt == GUI.evtRenderButton:
- label = "Save %s" % OUTPUT_FORMAT
+ label = "Save %s" % config.output['FORMAT']
# Show the File Selector
global outputfile
Blender.Window.FileSelector(vectorize, label, outputfile)
if evt:
Draw.Redraw(1)
- #GUI.conf_debug()
+ GUI.conf_debug()
def conf_debug():
- print
- print "PRINT_POLYGONS:", PRINT_POLYGONS
- print "POLYGON_EXPANSION_TRICK:", POLYGON_EXPANSION_TRICK
- print "PRINT_EDGES:", PRINT_EDGES
- print "SHOW_HIDDEN_EDGES:", SHOW_HIDDEN_EDGES
- print "EDGE_STYLE:", EDGE_STYLE
- print "EDGES_WIDTH:", EDGES_WIDTH
- print "RENDER_ANIMATION:", RENDER_ANIMATION
- print "OPTIMIZE_FOR_SPACE:", OPTIMIZE_FOR_SPACE
- print "OUTPUT_FORMAT:", OUTPUT_FORMAT
+ from pprint import pprint
+ pprint(config)
_init = staticmethod(_init)
draw = staticmethod(draw)
editmode = Window.EditMode()
if editmode: Window.EditMode(0)
- actualWriter = outputWriters[OUTPUT_FORMAT]
+ actualWriter = outputWriters[config.output['FORMAT']]
writer = actualWriter(filename)
renderer = Renderer()
- renderer.doRendering(writer, RENDER_ANIMATION)
+ renderer.doRendering(writer, config.output['ANIMATION'])
if editmode: Window.EditMode(1)
outputfile = ""
basename = Blender.sys.basename(Blender.Get('filename'))
if basename != "":
- outputfile = Blender.sys.splitext(basename)[0] + "." + str(OUTPUT_FORMAT).lower()
+ outputfile = Blender.sys.splitext(basename)[0] + "." + str(config.output['FORMAT']).lower()
if Blender.mode == 'background':
vectorize(outputfile)
projects / vrm.git / blobdiff