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RenderCollisionBounds

by Dave DAmico · in Torque X 2D · 09/02/2008 (7:17 am) · 7 replies

If I set the RenderCollisionBounds value of my object equal to true, I get a NullReferenceException in the Draw method. Does anyone have an example on how to get this to work? Here is my object:
<TorqueObject type="GarageGames.Torque.Core.TorqueObject" name="TrainingRoomDesk">
      <Components>
        <SceneComponent type="GarageGames.Torque.T3D.T3DSceneComponent" name="roomSceneComponent">
          <Position>
            <X>0</X>
            <Y>200</Y>
            <Z>350</Z>
          </Position>
        </SceneComponent>
        <XNARenderComponent type="GarageGames.Torque.T3D.T3DXNARenderComponent" name="compRender">
          <Filename>data/shape/TrainingRoomDesk</Filename>
        </XNARenderComponent>
        <RigidComponent type="GarageGames.Torque.T3D.T3DRigidComponent" named="deskRigidComponent">
          <RenderCollisionBounds>true</RenderCollisionBounds>
          <CollisionShapes>
            <CollisionShape>
              <Shape type="GarageGames.Torque.T3D.RigidCollision.CollisionBoxShape">
                <Bounds>
                  <min>
                    <x>-50</x>
                    <y>-50</y>
                    <z>-50</z>
                  </min>
                  <min>
                    <x>50</x>
                    <y>50</y>
                    <z>50</z>
                  </min>
                </Bounds>
                <Center>
                    <X>0</X>
                    <Y>200</Y>
                    <Z>350</Z>
                </Center>
              </Shape>
            </CollisionShape>
          </CollisionShapes>
          <GravityScale>0.0</GravityScale>
          <Immovable>true</Immovable>
          <RigidManager nameRef="RigidManager" />
        </RigidComponent>
      </Components>
    </TorqueObject>
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Torque Owner David Everhart
#1
09/02/2008 (7:24 am)
There is a known issue with using a CollisionBoxShape. If you use a sphere, it will work ok. If you are doing it programmatically, you have to call the onloaded method of the collision shape you picked.

Torque Owner Dave DAmico
#2
09/02/2008 (7:31 am)
Are you saying the rendering of the bounding box has an issue... or using the bounding box in general has an issue?

Torque Owner David Everhart
#3
09/02/2008 (7:59 am)
Using the bounding box in general is ok, its the rendering that has issue. In the private forums, there is several discussions on it, and I believe it will be fixed in the next point release. I ran into this issue when I tried to do it programmatically instead of through xml. You can see a thead on it here:

http://www.garagegames.com/mg/forums/result.thread.php?qt=76940

Through the xml, you should be ok. In my project, I use:

<RigidComponent type="GarageGames.Torque.T3D.T3DRigidComponent">
          <SceneGroupName>PlayerMesh</SceneGroupName>
          <RenderCollisionBounds>true</RenderCollisionBounds>
          <ResolveCollisions>true</ResolveCollisions>
          <CollisionShapes>
            <CollisionShape>
              <Shape type="GarageGames.Torque.T3D.RigidCollision.CollisionSphereShape">
                <Radius>2.00</Radius>
                <Center>
                  <X>0.0</X>
                  <Y>-0.2</Y>
                  <Z>0.65</Z>
                </Center>
              </Shape>
            </CollisionShape>
          </CollisionShapes>
          <Kinetic>true</Kinetic>
          <RotationScale>0.0</RotationScale>
          <Mass>30</Mass>
          <GravityScale>1.5</GravityScale>
          <RigidManager nameRef="RigidManager" />
        </RigidComponent>

Torque Owner David Everhart
#4
09/02/2008 (8:10 am)
I used your xml minus the bounds, and it seems to render ok:

farm4.static.flickr.com/3088/2821901818_a3afb06239_t.jpg


I used this xml:
<CollisionShapes>
            <CollisionShape>
              <Shape type="GarageGames.Torque.T3D.RigidCollision.CollisionBoxShape">
                <Center>
                  <X>0</X>
                  <Y>0</Y>
                  <Z>0</Z>
                </Center>
              </Shape>
            </CollisionShape>
          </CollisionShapes>

Torque Owner Dave DAmico
#5
09/02/2008 (8:30 am)
I removed the bounds and i still get the error...

Torque Owner David Everhart
#6
09/02/2008 (10:16 am)
Not sure if this matters, but I noticed this in your xml:

<RigidComponent type="GarageGames.Torque.T3D.T3DRigidComponent" named="deskRigidComponent">

Should that be 

<RigidComponent type="GarageGames.Torque.T3D.T3DRigidComponent" name="deskRigidComponent">

Torque Owner Dave DAmico
#7
09/05/2008 (2:18 pm)
Is your model in DTS format?