def view_bam(path):
path = core.Filename.from_os_specific(path)
loader = core.Loader.get_global_ptr()
node = loader.load_sync(path)
lens = core.OrthographicLens()
lens.film_size = (1, 1)
lens.set_view_vector((0, 0, -1), (0, 1, 0))
lens.set_near_far(-100, 100)
base = ShowBase()
base.render.attach_new_node(node)
base.disable_mouse()
base.cam.node().set_lens(lens)
base.camLens = lens
base.run()
def runViewer(mesh):
scene_members = getSceneMembers(mesh)
loadPrcFileData('', 'win-size 300 300')
base = ShowBase()
globNode = GeomNode("collada")
nodePath = base.render.attachNewNode(globNode)
rotateNode = GeomNode("rotater")
rotatePath = nodePath.attachNewNode(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(Mat4(*matrix.T.flatten().tolist()))
basecollada = GeomNode("basecollada")
basecolladaNP = rotatePath.attachNewNode(basecollada)
for geom, renderstate, mat4 in scene_members:
node = GeomNode("primitive")
node.addGeom(geom)
if renderstate is not None:
node.setGeomState(0, renderstate)
geomPath = basecolladaNP.attachNewNode(node)
geomPath.setMat(mat4)
for boundlight in mesh.scene.objects('light'):
if len(boundlight.color) == 3:
color = (boundlight.color[0], boundlight.color[1], boundlight.color[2], 1)
else:
color = boundlight.color
if isinstance(boundlight, collada.light.BoundDirectionalLight):
dl = DirectionalLight('dirLight')
dl.setColor(Vec4(color[0], color[1], color[2], color[3]))
lightNP = rotatePath.attachNewNode(dl)
lightNP.lookAt(Point3(boundlight.direction[0],boundlight.direction[1],boundlight.direction[2]))
elif isinstance(boundlight, collada.light.BoundAmbientLight):
ambientLight = AmbientLight('ambientLight')
ambientLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
lightNP = rotatePath.attachNewNode(ambientLight)
elif isinstance(boundlight, collada.light.BoundPointLight):
pointLight = PointLight('pointLight')
pointLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
pointLight.setAttenuation(Vec3(boundlight.constant_att, boundlight.linear_att, boundlight.quad_att))
lightNP = rotatePath.attachNewNode(pointLight)
lightNP.setPos(Vec3(boundlight.position[0], boundlight.position[1], boundlight.position[2]))
elif isinstance(boundlight, collada.light.BoundSpotLight):
spotLight = Spotlight('spotLight')
spotLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
spotLight.setAttenuation(Vec3(boundlight.constant_att, boundlight.linear_att, boundlight.quad_att))
spotLight.setExponent(boundlight.falloff_exp)
lightNP = rotatePath.attachNewNode(spotLight)
lightNP.setPos(Vec3(boundlight.position[0], boundlight.position[1], boundlight.position[2]))
lightNP.lookAt(Point3(boundlight.direction[0], boundlight.direction[1], boundlight.direction[2]),
Vec3(boundlight.up[0], boundlight.up[1], boundlight.up[2]))
else:
print('Unknown light type', boundlight)
continue
base.render.setLight(lightNP)
for boundcam in mesh.scene.objects('camera'):
if isinstance(boundcam, collada.camera.BoundPerspectiveCamera):
base.camera.reparentTo(rotatePath)
base.camLens.setNear(boundcam.znear)
base.camLens.setFar(boundcam.zfar)
if boundcam.xfov is not None and boundcam.yfov is not None:
#xfov + yfov
base.camLens.setFov(boundcam.xfov, boundcam.yfov)
elif boundcam.xfov is not None and boundcam.aspect_ratio is not None:
#xfov + aspect_ratio
base.camLens.setFov(boundcam.xfov)
base.camLens.setAspectRatio(boundcam.aspect_ratio)
elif boundcam.yfov is not None and boundcam.aspect_ratio is not None:
#yfov + aspect_ratio
#aspect_ratio = tan(0.5*xfov) / tan(0.5*yfov)
xfov = math.degrees(2.0 * math.atan(boundcam.aspect_ratio * math.tan(math.radians(0.5 * boundcam.yfov))))
base.camLens.setFov(xfov, boundcam.yfov)
elif boundcam.yfov is not None:
#yfov only
#aspect_ratio = tan(0.5*xfov) / tan(0.5*yfov)
xfov = math.degrees(2.0 * math.atan(base.camLens.getAspectRatio() * math.tan(math.radians(0.5 * boundcam.yfov))))
base.camLens.setFov(xfov, boundcam.yfov)
elif boundcam.xfov is not None:
base.camLens.setFov(boundcam.xfov)
base.camera.setPos(Vec3(boundcam.position[0], boundcam.position[1], boundcam.position[2]))
base.camera.lookAt(Point3(boundcam.direction[0], boundcam.direction[1], boundcam.direction[2]),
Vec3(boundcam.up[0], boundcam.up[1], boundcam.up[2]))
elif isinstance(boundcam, collada.camera.BoundOrthographicCamera):
lens = OrthographicLens()
base.cam.node().setLens(lens)
base.camLens = lens
base.camera.reparentTo(rotatePath)
base.camLens.setNear(boundcam.znear)
base.camLens.setFar(boundcam.zfar)
if boundcam.xmag is not None and boundcam.ymag is not None:
#xmag + ymag
base.camLens.setFilmSize(boundcam.xmag, boundcam.ymag)
elif boundcam.xmag is not None and boundcam.aspect_ratio is not None:
#xmag + aspect_ratio
base.camLens.setFilmSize(boundcam.xmag)
base.camLens.setAspectRatio(boundcam.aspect_ratio)
elif boundcam.ymag is not None and boundcam.aspect_ratio is not None:
#ymag + aspect_ratio
xmag = boundcam.aspect_ratio * boundcam.ymag
base.camLens.setFilmSize(xmag, boundcam.ymag)
elif boundcam.ymag is not None:
#ymag only
xmag = base.camLens.getAspectRatio() * boundcam.ymag
base.camLens.setFilmSize(xmag, boundcam.ymag)
elif boundcam.xmag is not None:
base.camLens.setFilmSize(boundcam.xmag)
base.camera.setPos(Vec3(boundcam.position[0], boundcam.position[1], boundcam.position[2]))
base.camera.lookAt(Point3(boundcam.direction[0], boundcam.direction[1], boundcam.direction[2]),
Vec3(boundcam.up[0], boundcam.up[1], boundcam.up[2]))
else:
print('Unknown camera type', boundcam)
continue
base.disableMouse()
base.render.setShaderAuto()
base.render.setTransparency(TransparencyAttrib.MDual, 1)
KeyboardMovement()
MouseDrag(basecolladaNP)
MouseScaleZoom(basecolladaNP)
base.run()
def runViewer(mesh):
scene_members = getSceneMembers(mesh)
loadPrcFileData('', 'win-size 300 300')
base = ShowBase()
globNode = GeomNode("collada")
nodePath = base.render.attachNewNode(globNode)
rotateNode = GeomNode("rotater")
rotatePath = nodePath.attachNewNode(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(Mat4(*matrix.T.flatten().tolist()))
basecollada = GeomNode("basecollada")
basecolladaNP = rotatePath.attachNewNode(basecollada)
for geom, renderstate, mat4 in scene_members:
node = GeomNode("primitive")
node.addGeom(geom)
if renderstate is not None:
node.setGeomState(0, renderstate)
geomPath = basecolladaNP.attachNewNode(node)
geomPath.setMat(mat4)
for boundlight in mesh.scene.objects('light'):
if len(boundlight.color) == 3:
color = (boundlight.color[0], boundlight.color[1],
boundlight.color[2], 1)
else:
color = boundlight.color
if isinstance(boundlight, collada.light.BoundDirectionalLight):
dl = DirectionalLight('dirLight')
dl.setColor(Vec4(color[0], color[1], color[2], color[3]))
lightNP = rotatePath.attachNewNode(dl)
lightNP.lookAt(
Point3(boundlight.direction[0], boundlight.direction[1],
boundlight.direction[2]))
elif isinstance(boundlight, collada.light.BoundAmbientLight):
ambientLight = AmbientLight('ambientLight')
ambientLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
lightNP = rotatePath.attachNewNode(ambientLight)
elif isinstance(boundlight, collada.light.BoundPointLight):
pointLight = PointLight('pointLight')
pointLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
pointLight.setAttenuation(
Vec3(boundlight.constant_att, boundlight.linear_att,
boundlight.quad_att))
lightNP = rotatePath.attachNewNode(pointLight)
lightNP.setPos(
Vec3(boundlight.position[0], boundlight.position[1],
boundlight.position[2]))
elif isinstance(boundlight, collada.light.BoundSpotLight):
spotLight = Spotlight('spotLight')
spotLight.setColor(Vec4(color[0], color[1], color[2], color[3]))
spotLight.setAttenuation(
Vec3(boundlight.constant_att, boundlight.linear_att,
boundlight.quad_att))
spotLight.setExponent(boundlight.falloff_exp)
lightNP = rotatePath.attachNewNode(spotLight)
lightNP.setPos(
Vec3(boundlight.position[0], boundlight.position[1],
boundlight.position[2]))
lightNP.lookAt(
Point3(boundlight.direction[0], boundlight.direction[1],
boundlight.direction[2]),
Vec3(boundlight.up[0], boundlight.up[1], boundlight.up[2]))
else:
print 'Unknown light type', boundlight
continue
base.render.setLight(lightNP)
for boundcam in mesh.scene.objects('camera'):
if isinstance(boundcam, collada.camera.BoundPerspectiveCamera):
base.camera.reparentTo(rotatePath)
base.camLens.setNear(boundcam.znear)
base.camLens.setFar(boundcam.zfar)
if boundcam.xfov is not None and boundcam.yfov is not None:
#xfov + yfov
base.camLens.setFov(boundcam.xfov, boundcam.yfov)
elif boundcam.xfov is not None and boundcam.aspect_ratio is not None:
#xfov + aspect_ratio
base.camLens.setFov(boundcam.xfov)
base.camLens.setAspectRatio(boundcam.aspect_ratio)
elif boundcam.yfov is not None and boundcam.aspect_ratio is not None:
#yfov + aspect_ratio
#aspect_ratio = tan(0.5*xfov) / tan(0.5*yfov)
xfov = math.degrees(
2.0 *
math.atan(boundcam.aspect_ratio *
math.tan(math.radians(0.5 * boundcam.yfov))))
base.camLens.setFov(xfov, boundcam.yfov)
elif boundcam.yfov is not None:
#yfov only
#aspect_ratio = tan(0.5*xfov) / tan(0.5*yfov)
xfov = math.degrees(
2.0 *
math.atan(base.camLens.getAspectRatio() *
math.tan(math.radians(0.5 * boundcam.yfov))))
base.camLens.setFov(xfov, boundcam.yfov)
elif boundcam.xfov is not None:
base.camLens.setFov(boundcam.xfov)
base.camera.setPos(
Vec3(boundcam.position[0], boundcam.position[1],
boundcam.position[2]))
base.camera.lookAt(
Point3(boundcam.direction[0], boundcam.direction[1],
boundcam.direction[2]),
Vec3(boundcam.up[0], boundcam.up[1], boundcam.up[2]))
elif isinstance(boundcam, collada.camera.BoundOrthographicCamera):
lens = OrthographicLens()
base.cam.node().setLens(lens)
base.camLens = lens
base.camera.reparentTo(rotatePath)
base.camLens.setNear(boundcam.znear)
base.camLens.setFar(boundcam.zfar)
if boundcam.xmag is not None and boundcam.ymag is not None:
#xmag + ymag
base.camLens.setFilmSize(boundcam.xmag, boundcam.ymag)
elif boundcam.xmag is not None and boundcam.aspect_ratio is not None:
#xmag + aspect_ratio
base.camLens.setFilmSize(boundcam.xmag)
base.camLens.setAspectRatio(boundcam.aspect_ratio)
elif boundcam.ymag is not None and boundcam.aspect_ratio is not None:
#ymag + aspect_ratio
xmag = boundcam.aspect_ratio * boundcam.ymag
base.camLens.setFilmSize(xmag, boundcam.ymag)
elif boundcam.ymag is not None:
#ymag only
xmag = base.camLens.getAspectRatio() * boundcam.ymag
base.camLens.setFilmSize(xmag, boundcam.ymag)
elif boundcam.xmag is not None:
base.camLens.setFilmSize(boundcam.xmag)
base.camera.setPos(
Vec3(boundcam.position[0], boundcam.position[1],
boundcam.position[2]))
base.camera.lookAt(
Point3(boundcam.direction[0], boundcam.direction[1],
boundcam.direction[2]),
Vec3(boundcam.up[0], boundcam.up[1], boundcam.up[2]))
else:
print 'Unknown camera type', boundcam
continue
base.disableMouse()
base.render.setShaderAuto()
base.render.setTransparency(TransparencyAttrib.MDual, 1)
KeyboardMovement()
MouseDrag(basecolladaNP)
MouseScaleZoom(basecolladaNP)
base.run()
