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I'm trying to translate my raycasting experience in Unity and Blender GE to Leadwerks, but I'm having a hard time connecting the dots. My test scene includes one cube on the ground, and another cube next to the first (on X axis) and raised above the ground and above the height of the ground cube so that when the game starts, the raised cube falls next to the ground cube. I have a lua script attached to the ground cube and I'm trying to cast a ray from the ground cubes position to a position farther down the x axis so that the raised cube will intersect when it falls. This is my code in the UpdateWorld function. I get an blank error window. I'm very inexperienced with Leadwerks, so I may be going about it all wrong, but this is what I've gathered from the docs. Thanks for any help you can provide. function Script:UpdateWorld() self.position = self.entity:GetPosition() self.right = Vec3(self.position.x + self.right.x, self.position.y, self.position.z); local pickInfo = PickInfo() local clear = true local world = World:GetCurrent() local context = Context:GetCurrent() local pos = self.camera:Project(Vec3(self.position)) local pRight = self.camera:Project(Vec3(self.right)) context:DrawLine(pos.x, pos.y, pRight.x, pRight.y) if (world:Pick(self.position, self.right, pickinfo, 0.0, true)) then clear= false end end