Draw_bounds_type does not display Polyhedron or Capsule types #28865

New Issue

Ger Moran · 2011-10-10T03:26:43+02:00

Ger Moran commented

2011-10-10 03:26:43 +02:00

%%%The bound options 'POLYHEDRON' and 'CAPSULE' fail to display the desired bound type. Setting draw_bounds_types for an object either through the UI outliner datablock or via Python: draw_bounds_type = 'CAPSULE'.

Reproduction:
In the outliner with the datablock info displayed, expand the the object data.
Enable Draw bounds.
Enumerating through draw_bounds_type will show the working bounds in the 3D view.

Tested in Blender 2.59, 2.6%%%

%%%The bound options 'POLYHEDRON' and 'CAPSULE' fail to display the desired bound type. Setting draw_bounds_types for an object either through the UI outliner datablock or via Python: draw_bounds_type = 'CAPSULE'. Reproduction: In the outliner with the datablock info displayed, expand the the object data. Enable Draw bounds. Enumerating through draw_bounds_type will show the working bounds in the 3D view. Tested in Blender 2.59, 2.6%%%

Ger Moran commented

2011-10-10 03:26:43 +02:00

Changed status to: 'Open'

Campbell Barton commented

2011-10-11 03:00:26 +02:00

%%%The problem is that this variable is doubling with physics type - where capsule could be drawn, but polyhedron is just using the meshes geometry.

So even if capsule is added we'll have one empty drawtype left.%%%

%%%The problem is that this variable is doubling with physics type - where capsule could be drawn, but polyhedron is just using the meshes geometry. So even if capsule is added we'll have one empty drawtype left.%%%

Sergey Sharybin commented

2011-10-11 14:17:53 +02:00

%%%Campbell, checked code. Looks like physics is using it's own list of primitives. Or game engine is using object's boundbox type for something else? And not sure what "polyhedron is just using the meshes geometry" means. It uses the same mesh geometry?%%%

Ger Moran commented

2011-10-11 15:32:32 +02:00

%%%In the case of Polyhedron should it not show the bounds? At the moment there is no visual indicator to say that the bound is working; just displays as if the object is selected. The other bound, 'Box', 'Sphere' etc, show the edges of the bounds as well as the base mesh. So if it is to keep with convention perhaps over-drawing the bound on the mesh.

As for the Capsule I suppose that it is at your discretion to either include it or not, hopefully removing it from the list to avoid complication seeing as BGE has its own list, but I think it would be good to have it functional.%%%

%%%In the case of Polyhedron should it not show the bounds? At the moment there is no visual indicator to say that the bound is working; just displays as if the object is selected. The other bound, 'Box', 'Sphere' etc, show the edges of the bounds as well as the base mesh. So if it is to keep with convention perhaps over-drawing the bound on the mesh. As for the Capsule I suppose that it is at your discretion to either include it or not, hopefully removing it from the list to avoid complication seeing as BGE has its own list, but I think it would be good to have it functional.%%%

Amorilia commented

2011-10-11 20:48:07 +02:00

%%%Sorry to jump in on a slightly different, though related, issue: Blender 2.49b supported also a convex hull collision type (although it wasn't documented in the Python API). Assuming the physics engine still supports these, any chance of resurrecting this convex hull collision type?

It would be useful for the Blender nif import/export scripts: the nif format distinguishes between polyhedral and convex collision types. I guess it would also help physics simulation in large scenes, as convex hull collisions are much faster to determine than arbitrary polyhedral collisions.%%%

%%%Sorry to jump in on a slightly different, though related, issue: Blender 2.49b supported also a convex hull collision type (although it wasn't documented in the Python API). Assuming the physics engine still supports these, any chance of resurrecting this convex hull collision type? It would be useful for the Blender nif import/export scripts: the nif format distinguishes between polyhedral and convex collision types. I guess it would also help physics simulation in large scenes, as convex hull collisions are much faster to determine than arbitrary polyhedral collisions.%%%

Brecht Van Lommel commented

2011-10-13 13:27:22 +02:00

%%%Amorilia: convex hull is still in the list when you select the game engine and look in the physics properties.
%%%

%%%Amorilia: convex hull is still in the list when you select the game engine and look in the physics properties. %%%

Amorilia commented

2011-10-13 22:31:29 +02:00

%%%Gosh, you're right - thanks for the pointer. Obviously I'm still finding my way around in the new API, and didn't even know there was also GameObjectSettings.collision_bounds_type, besides Object.draw_bounds_type!

Apologies for the noise and for my ignorance.%%%

%%%Gosh, you're right - thanks for the pointer. Obviously I'm still finding my way around in the new API, and didn't even know there was also GameObjectSettings.collision_bounds_type, besides Object.draw_bounds_type! Apologies for the noise and for my ignorance.%%%

Sergey Sharybin commented

2011-11-01 13:31:13 +01:00

%%%What's the current status of this report? Is there still something which can be fixes without hurting other areas which are using boundboxes?%%%

Ger Moran commented

2011-11-02 16:47:08 +01:00

%%%Sergey: Myself and Amorilia can work ahead without this affecting us for the time being if it does cause conflicts elsewhere.

The last thing of note just for completeness of the bug report. Setting viewport shading to bounding_box, object with capsule bound type will show the same problem.%%%

%%%Sergey: Myself and Amorilia can work ahead without this affecting us for the time being if it does cause conflicts elsewhere. The last thing of note just for completeness of the bug report. Setting viewport shading to bounding_box, object with capsule bound type will show the same problem.%%%

Sergey Sharybin commented

2011-11-04 12:05:39 +01:00

%%%Attaching patch which should make things more clear.%%%

Sergey Sharybin commented

2011-11-04 16:54:41 +01:00

%%%Commited to rev41529. Thanks for the report, closing.%%%

Sergey Sharybin commented

2011-11-04 16:54:41 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2011-11-04 16:54:41 +01:00

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Draw_bounds_type does not display Polyhedron or Capsule types #28865