Interface representing an on-demand mesh. More...
Public Member Functions | |
| virtual void | set_callback (IOn_demand_mesh_callback *callback)=0 |
| Sets the callback that returns the actual mesh. More... |
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| virtual const IOn_demand_mesh_callback * |
get_callback () const =0 |
| Returns the stored callback. More... |
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Methods related to the bounding box | |
| virtual void | set_bbox_min (const Float32_3_struct &bbox_min)=0 |
| Sets the minimal corner of the bounding box. More... |
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| virtual void | set_bbox_max (const Float32_3_struct &bbox_max)=0 |
| Sets the maximal corner of the bounding box. More... |
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| virtual const Float32_3_struct & | get_bbox_min () const =0 |
| Returns the minimal corner of the bounding box. More... |
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| virtual const Float32_3_struct & | get_bbox_max () const =0 |
| Returns the maximal corner of the bounding box. More... |
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Methods related to displacement | |
| virtual void | set_maximum_displacement (Float32 displacement)=0 |
| Sets the maximum displacement of the on-demand mesh. More... |
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| virtual Float32 | get_maximum_displacement () const =0 |
| Returns the maximum displacement of the on-demand mesh. More... |
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Additional Inherited Members | |
 Public Types inherited from mi::base::Interface_declare< 0x0c1cb14f, 0x985a, 0x426e, 0xa3, 0x79, 0xa7, 0xf5, 0x62, 0x60, 0xd6, 0x8d, IScene_element >
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| typedef Interface_declare< id1, id2, id3, id4, id5, id6, id7, id8, id9, id10, id11, IScene_element > |
Self |
| Own type. More... |
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| typedef Uuid_t< id1, id2, id3, id4, id5, id6, id7, id8, id9, id10, id11 > |
IID |
| Declares the interface ID (IID) of this interface. More... |
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Static Public Member Functions inherited from mi::base::Interface_declare< 0x0c1cb14f, 0x985a, 0x426e, 0xa3, 0x79, 0xa7, 0xf5, 0x62, 0x60, 0xd6, 0x8d, IScene_element >
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| static bool | compare_iid (const Uuid &iid) |
Compares the interface ID iid against the interface ID of this interface and of its ancestors. More... |
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Interface representing an on-demand mesh.
On-demand meshes are scene elements representing geometry. Basically they also describe triangle meshes (see mi::ITriangle_mesh), just in a much simpler format. In contrast to all other scene elements representing geometry, on-demand meshes do not store the geometry.
Instead, on-demand meshes use a user-specified callback to provide the geometry when needed. The geometry data might already exist in the application in a format that can be used directly (see mi::ISimple_mesh). In this case a simple adaptor exposing that data in the expected format is sufficient, and another copy of the geometry can be avoided.
Even if the geometry data does not yet exist in the application in a format that can be used directly there is no need to hold permanently a copy of that data in the desired format. Often this data is only needed temporarily while it is converted into another format or for upload to the GPU. In this case the memory used by a temporary instance of mi::ISimple_mesh holding a copy of the geometry data can be reclaimed after the conversion process.
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pure virtual |
Returns the maximal corner of the bounding box.
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pure virtual |
Returns the minimal corner of the bounding box.
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pure virtual |
Returns the stored callback.
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pure virtual |
Returns the maximum displacement of the on-demand mesh.
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pure virtual |
Sets the maximal corner of the bounding box.
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pure virtual |
Sets the minimal corner of the bounding box.
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pure virtual |
Sets the callback that returns the actual mesh.
Is is feasible to pass NULL as callback. An on-demand mesh without callback is treated like an empty mesh.
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pure virtual |
Sets the maximum displacement of the on-demand mesh.
This value is the maximum absolute value that any displacement shader applied to the object will return (defaults to 0.0). The bounding box of the object will be expanded all around by this value.
