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I think I have some clipping going on

RdoRdo
in Bugs Posts: 17

My code takes a cubemodel, modifies its leftmost upper positions into lower positions, and the resulting model is a ramp that is supposed to be used to define the shape for physical interaction.

You’re supposed to be able to drop a ball atop the ramp and have it react accordingly.

However there seems to be some clipping going on. When you drop your first sphere, the first dropped sphere goes through the ramp and the plane it sits on.

If you were to drop a second sphere the second dropped sphere goes through the ramp but seemingly sits on the plane. If you were to continue dropping spheres they’ll stack atop each other until the fifth or so sphere, at which point they’ll roll their own separate ways either left or right of the ramp.

Here’s the code:

displayMode(OVERLAY)
function setup()

        parameter.integer("CamHeight",-HEIGHT/2,HEIGHT/2,HEIGHT/2) 

    -- Create a new craft scene
    scene = craft.scene()
scene.camera.position = vec3(HEIGHT/2,HEIGHT/2,HEIGHT/2)


floor = scene:entity()
    floor.position = vec3(HEIGHT/2,-1,HEIGHT/2)
  floor.model = craft.model.plane(vec2(1024,1024),vec3(0,0,0))

    red = "floor.model.positions = {"
    for d = 1,#floor.model.positions do
        print("floor #",d,"  vec3",floor.model.positions[d])
        red = red..",".."vec3("..floor.model.positions[d].x..","..floor.model.positions[d].y..","..floor.model.positions[d].z..")"
    end
    red = string.gsub(red,"{,","{").."} \n\n floor.model.indices = {"
    for r = 1,#floor.model.indices do
              print(floor.model.indices[r],",")  

        red = red..","..floor.model.indices[r]
    end
        red = string.gsub(red,"{,","{").."}"


--pasteboard.text = red
--  close()


    floor:add(craft.rigidbody,STATIC)
      floor:add(craft.shape.box,vec3(1024,2,1024),vec3(0,0,0))



mate = craft.material("Materials:Standard")

  mate.diffuse = color(255, 255, 255, 255)
    floor.material = mate

 floor:get(craft.rigidbody).sleepingAllowed = false

  floor:get(craft.renderer).mask = 1<<2

--print("vertexCount ",floor.model.vertexCount," indexCount",floor.model.indexCount)
    for i = 1,#floor.model.positions do
        h = floor.model:position(i)


   -- print("index #",i," = vec3(",h,")")
    end
    ramp = scene:entity()
    ramp.position = vec3(HEIGHT/2,2,HEIGHT/2)










    ramp.model = craft.model.cube(vec3(13,130,13),vec3(0,0,0))
    print(" theramp indexCount",ramp.model.indexCount,"theramp verts",ramp.model.vertexCount)
    for out = 1,#ramp.model.positions do --this loop modifies the cube model into a simple ramp
    if ramp.model.positions[out].x < 0 then
            sidex = "left"
    elseif ramp.model.positions[out].x > 0 then
            sidex = "right"        

        end
        if ramp.model.positions[out].y < 0 then
            sidey = "down"
    elseif ramp.model.positions[out].y > 0 then
            sidey = "up"        

        end

        print(sidex..sidey.."#"..out..": vec3("..ramp.model.positions[out].x..","..ramp.model.positions[out].y..","..ramp.model.positions[out].z..")")
                if sidey == "up" and sidex == "left" then
            sidey = "down"
ramp.model:position(out,ramp.model.positions[out].x,ramp.model.positions[3].y,ramp.model.positions[out].z)  
                    print("now",sidex..sidey.."#"..out..": vec3("..ramp.model.positions[out].x..","..ramp.model.positions[out].y..","..ramp.model.positions[out].z..")")

        end
        end


            ramp:add(craft.rigidbody,DYNAMIC,13)
ramp:add(craft.shape.model,ramp.model)--since you no longer are using a cube the newly formed model is

    surface = craft.material("Materials:Standard")
    surface.diffuse = color(0, 27, 255, 255)
    ramp.material = surface
     ramp:get(craft.renderer).mask = 1<<2

    verticalx,horizontaly = 0,0

    -- Create a new entity

 bx = {}

scene.sun.position = vec3(0,0,0)

end

function update(dt)
    -- Update the scene (physics, transforms etc)

scene.camera.y = CamHeight
    scene.camera.eulerAngles = vec3(verticalx,horizontaly,0)
   -- floor.active = true
    if addit ~= nil and addit == "y" then
        bx[#bx + 1] = scene:entity()
 bx[#bx].position = vec3(scene.camera.x,scene.camera.y,scene.camera.z)
        --surface = craft.material("Filters:Edge")

      -- surface = 
   -- surface.diffuse = color(math.random(0,255),math.random(0,255),math.random(0,255),255)


       -- surface.normalMap = ""
        dimensions = vec3(6,13,6)

        bx[#bx]:add(craft.rigidbody,DYNAMIC,13)
        bx[#bx]:add(craft.shape.sphere,13,vec3(0,0,0))  
                bx[#bx].model = craft.model.icosphere(13,3,vec3(0,0,0))      
        bx[#bx].material = craft.material("Materials:Standard") 

        bx[#bx].material.diffuse = color(math.random(0,255),math.random(0,255),math.random(0,255),255)

bx[#bx]:get(craft.rigidbody).sleepingAllowed = false

 bx[#bx]:add(craft.light,POINT)
bx[#bx]:get(craft.light).distance = 1024
bx[#bx]:get(craft.light).color = color(0, 0, 0, 122)
 bx[#bx]:get(craft.light).angle = 45

        bx[#bx]:get(craft.renderer).mask = 1<<2
        print("dropped")

 addit = nil

            end
    scene:update(dt)
end

-- Called automatically by codea 
function draw()
    update(DeltaTime)

    -- Draw the scene
    scene:draw()    
end 
function touched(touch)
    if CurrentTouch.state == MOVING then
    verticalx,horizontaly = verticalx + CurrentTouch.deltaY,horizontaly + CurrentTouch.deltaX

    end
        if touch.tapCount == 2 and touch.state == BEGAN then
        addit = "y"


    end

end

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