Difference between revisions of "PRIM PHYSICS SHAPE TYPE"
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! colspan="3" {{!}} Notes | ! colspan="3" {{!}} Notes | ||
{{!}}- | {{!}}- | ||
{{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_PRIM|integer|0|c= | {{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_PRIM|integer|0|c=The visible shape of the prim determines its physics-shape}} | ||
{{!}} {{#var:value}} | {{!}} {{#var:value}} | ||
{{!}} colspan="3" {{!}} {{#var:comment}} | {{!}} colspan="3" {{!}} {{#var:comment}} | ||
{{!}} colspan="3" {{!}} default for all non-mesh | {{!}} colspan="3" {{!}} default for all non-mesh prims | ||
{{!}}- | {{!}}- | ||
{{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_CONVEX|integer|2|c=Use the convex hull | {{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_CONVEX|integer|2|c=Use the convex hull formulas for generating the prim's physics-shape}} | ||
{{!}} {{#var:value}} | {{!}} {{#var:value}} | ||
{{!}} colspan="3" {{!}} {{#var:comment}} | {{!}} colspan="3" {{!}} {{#var:comment}} | ||
{{!}} colspan="3" {{!}} default for all mesh | {{!}} colspan="3" {{!}} default for all mesh prims | ||
{{!}}- | {{!}}- | ||
{{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_NONE|integer|1|c= | {{!}} {{LSL Const|PRIM_PHYSICS_SHAPE_NONE|integer|1|c=The prim will not contribute to the object's physics-shape}} | ||
{{!}} {{#var:value}} | {{!}} {{#var:value}} | ||
{{!}} colspan="3" {{!}} {{#var:comment}} | {{!}} colspan="3" {{!}} {{#var:comment}} | ||
{{!}} colspan="3" {{!}} ''This cannot be applied to the root prim.'' | {{!}} colspan="3" {{!}} ''This cannot be applied to the root prim or avatars.'' | ||
This prim has no physics representation at all. Like [[phantom]] objects, it will not collide with avatars or other objects. ''Unlike'' phantom prims, it will also pass freely through the terrain when the parent object is physical. Like [[llVolumeDetect|volume detect]] it doesn't collide with terrain. ''Unlike'' volume detect, it will not register {{LSLGC|Collision|collision}} events. | |||
}} | }} | ||
}}</onlyinclude>{{#if: | }}</onlyinclude>{{#if: | ||
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|type=integer | |type=integer | ||
|value=30 | |value=30 | ||
|desc=Used to set the type of shape the physics engine should use for the | |desc=Used to set the type of shape the physics engine should use for the prim. This is primarily used to do [[Physics Optimization]]. | ||
|examples | |examples | ||
|constants | |constants | ||
|notes=Modern physics engines achieve real-time results (as opposed to slower than real-time results) by approximating and simplifying the shapes. This means the shape that client displays on the screen is much more complicated than the shape the physics engine works with (with the exception of basic shapes like cubes or prisms). This flag gives the scripter some control over how the prim is treated by the physics engine. | |||
|pa={{LSL Constant/List|i_front=[ {{#var:physics_shape_type_const}}, |i_end= ] | |pa={{LSL Constant/List|i_front=[ {{#var:physics_shape_type_const}}, |i_end= ] | ||
|text=When used with [[llSetPrimitiveParams]] & [[llSetLinkPrimitiveParams]] | |text=When used with [[llSetPrimitiveParams]] & [[llSetLinkPrimitiveParams]] | ||
| Line 56: | Line 55: | ||
{{#var:physics_shape_type_rows}} | {{#var:physics_shape_type_rows}} | ||
{{!}}} | {{!}}} | ||
|articles= | |||
{{LSL DefineRow||[[Physics Optimization]]|}} | |||
{{LSL DefineRow||[http://community.secondlife.com/t5/English-Knowledge-Base/Best-practices-for-creating-efficient-collision-volumes/ta-p/984115 Best practices for creating efficient collision volumes]|A really good article that explains how collisions work.}} | |||
|functions= | |functions= | ||
{{LSL DefineRow||[[llGetPrimitiveParams]]|}} | {{LSL DefineRow||[[llGetPrimitiveParams]]|}} | ||
| Line 67: | Line 69: | ||
*Introduced in [[Release Notes/Second Life RC LeTigre/11#11.09.09.240509|Second Life RC LeTigre 11.09.09.240509]], September 9, 2011 | *Introduced in [[Release Notes/Second Life RC LeTigre/11#11.09.09.240509|Second Life RC LeTigre 11.09.09.240509]], September 9, 2011 | ||
*[http://www.sluniverse.com/php/vb/scripting/61203-future-physics-functions-tease.html#post1305775 SLUniverse:Future physics functions tease] | *[http://www.sluniverse.com/php/vb/scripting/61203-future-physics-functions-tease.html#post1305775 SLUniverse:Future physics functions tease] | ||
|cat1= | |cat1=Physics | ||
|cat2 | |cat2 | ||
}} | }} | ||
Latest revision as of 02:12, 27 December 2013
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Description
Constant: integer PRIM_PHYSICS_SHAPE_TYPE = 30;The integer constant PRIM_PHYSICS_SHAPE_TYPE has the value 30
Used to set the type of shape the physics engine should use for the prim. This is primarily used to do Physics Optimization.
llSetPrimitiveParams
[ PRIM_PHYSICS_SHAPE_TYPE, integer type ]| • integer | type | – | PRIM_PHYSICS_SHAPE_* flag |
When used with llSetPrimitiveParams & llSetLinkPrimitiveParams
llGetPrimitiveParams
llGetPrimitiveParams([ PRIM_PHYSICS_SHAPE_TYPE ]);| type Flags | V | Description | Notes | ||||
|---|---|---|---|---|---|---|---|
| PRIM_PHYSICS_SHAPE_PRIM | 0 | The visible shape of the prim determines its physics-shape | default for all non-mesh prims | ||||
| PRIM_PHYSICS_SHAPE_CONVEX | 2 | Use the convex hull formulas for generating the prim's physics-shape | default for all mesh prims | ||||
| PRIM_PHYSICS_SHAPE_NONE | 1 | The prim will not contribute to the object's physics-shape | This cannot be applied to the root prim or avatars.
This prim has no physics representation at all. Like phantom objects, it will not collide with avatars or other objects. Unlike phantom prims, it will also pass freely through the terrain when the parent object is physical. Like volume detect it doesn't collide with terrain. Unlike volume detect, it will not register collision events. | ||||
Caveats
Related Articles
Functions
| • | llGetPrimitiveParams | |||
| • | llGetLinkPrimitiveParams | |||
| • | llSetPrimitiveParams | |||
| • | llSetLinkPrimitiveParams | |||
| • | llSetLinkPrimitiveParamsFast |
Articles
| • | Physics Optimization | |||
| • | Best practices for creating efficient collision volumes | – | A really good article that explains how collisions work. |
Notes
Modern physics engines achieve real-time results (as opposed to slower than real-time results) by approximating and simplifying the shapes. This means the shape that client displays on the screen is much more complicated than the shape the physics engine works with (with the exception of basic shapes like cubes or prisms). This flag gives the scripter some control over how the prim is treated by the physics engine.
Deep Notes
History
- Introduced in Second Life RC LeTigre 11.09.09.240509, September 9, 2011
- SLUniverse:Future physics functions tease
Search JIRA for related Issues
Signature |
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integer PRIM_PHYSICS_SHAPE_TYPE = 30; |