Due to the nature of my project, I’m converting from a CAD format to an egg string dynamically, and then loading that into a NodePath. Loading the first model string works fine, but the next model I load includes the geometry from the first. It seems like it could be a caching issue, but I can’t figure out where it’s coming from. I’ve exported the CAD models to STEP and they look as they should.
In the picture the blue plane on the bottom is the first thing I add. The white one above with the raised lettering is the second one I added. The white one is only supposed to have the lettering, but the plane from the first model is included as well. Here is a snippet of my code.
# Load the first, blue model
# I've written the tesselate and getEggString functions, but they're both static, and don't access any global variables
(vertices, indices, normals) = Builder.tessellate(eval('cq.Workplane("XY").box(10, 10, 0.01)').val(), 0.001, False)
model_egg = Builder.getEggString(vertices, indices, normals)
egg = EggData()
success = egg.read(StringStream(str.encode(model_egg)))
self.main_plane = NodePath(loadEggData(egg))
self.main_plane.reparentTo(render)
self.main_plane.setPos(0, 0, 0)
self.main_plane.setColor(0, 0, 1, 1)
# Load the second, white model
(vertices, indices, normals) = Builder.tessellate(eval('cq.Workplane("XY").text("XY", 6, 1.0)').val(), 0.001, False)
model_egg = Builder.getEggString(vertices, indices, normals)
egg = EggData()
success = egg.read(StringStream(str.encode(model_egg)))
self.plane_text = NodePath(loadEggData(egg))
self.plane_text.reparentTo(render)
self.plane_text.setPos(0, 0, 1)