/
renderscene.py
executable file
·132 lines (102 loc) · 4.13 KB
/
renderscene.py
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#!/usr/bin/env python
import os
import sys
import json
from optparse import OptionParser
import numpy
import direct.showbase.ShowBase as ShowBase
import panda3d.core as p3d
import collada
import meshtool.filters.panda_filters.pandacore as pcore
import meshtool.filters.panda_filters.pandacontrols as controls
import meshtool.filters.print_filters.print_bounds as print_bounds
import cache
import scene
def centerAndScale(nodePath, boundsInfo):
wrapNode = None
parentNP = nodePath.getParent()
nodePath.detachNode()
nodePath.setName('wrapper-centering-collada')
newRoot = parentNP.attachNewNode('newroot')
scaleNode = newRoot.attachNewNode('scaler')
nodePath.reparentTo(scaleNode)
center = boundsInfo['center']
center_distance = boundsInfo['center_farthest_distance']
nodePath.setPos(-1 * center[0],
-1 * center[1],
-1 * center[2])
scale = 1.0 / center_distance
scaleNode.setScale(scale, scale, scale)
return newRoot
class SceneRenderer(ShowBase.ShowBase):
def __init__(self, models):
ShowBase.ShowBase.__init__(self)
self.models = models
unique_meshes = set(m.mesh for m in models)
mesh2nodepath = {}
for mesh in unique_meshes:
scene_members = pcore.getSceneMembers(mesh)
rotateNode = p3d.GeomNode("rotater")
rotatePath = p3d.NodePath(rotateNode)
matrix = numpy.identity(4)
if mesh.assetInfo.upaxis == collada.asset.UP_AXIS.X_UP:
r = collada.scene.RotateTransform(0,1,0,90)
matrix = r.matrix
elif mesh.assetInfo.upaxis == collada.asset.UP_AXIS.Y_UP:
r = collada.scene.RotateTransform(1,0,0,90)
matrix = r.matrix
rotatePath.setMat(p3d.Mat4(*matrix.T.flatten().tolist()))
rbc = p3d.RigidBodyCombiner('combiner')
rbcPath = rotatePath.attachNewNode(rbc)
for geom, renderstate, mat4 in scene_members:
node = p3d.GeomNode("primitive")
node.addGeom(geom)
if renderstate is not None:
node.setGeomState(0, renderstate)
geomPath = rbcPath.attachNewNode(node)
geomPath.setMat(mat4)
rbc.collect()
mesh2nodepath[mesh] = centerAndScale(rotatePath, print_bounds.getBoundsInfo(mesh))
scenepath = render.attachNewNode("scene")
for model in self.models:
np = mesh2nodepath[model.mesh]
instance = scenepath.attachNewNode("model")
np.instanceTo(instance)
instance.setPos(model.x, model.y, model.z)
instance.setScale(model.scale, model.scale, model.scale)
q = p3d.Quat()
q.setI(model.orient_x)
q.setJ(model.orient_y)
q.setK(model.orient_z)
q.setR(model.orient_w)
instance.setQuat(q)
base.camLens.setFar(sys.maxint)
base.camLens.setNear(8.0)
pcore.attachLights(render)
render.setShaderAuto()
render.setTransparency(p3d.TransparencyAttrib.MDual, 1)
render.setAntialias(p3d.AntialiasAttrib.MAuto)
controls.KeyboardMovement()
controls.ButtonUtils(scenepath)
controls.MouseDrag(scenepath)
controls.MouseCamera()
controls.MouseScaleZoom(scenepath)
def main():
parser = OptionParser(usage="Usage: renderscene.py scene.json",
description="Renders a JSON scene file")
(options, args) = parser.parse_args()
if len(args) != 1:
parser.print_help()
parser.exit(1, "Wrong number of arguments.\n")
if not os.path.isfile(args[0]):
parser.print_help()
parser.exit(1, "Input file '%s' is not a valid file.\n" % args[0])
fname = args[0]
json_data = json.load(open(fname))
print 'Fetching models'
models = [scene.SceneModel.from_json(j) for j in json_data]
print 'Starting scene'
r = SceneRenderer(models)
r.run()
if __name__ == '__main__':
main()