| Name |
| |
| ATI_vertex_attrib_array_object |
| |
| Name Strings |
| |
| GL_ATI_vertex_attrib_array_object |
| |
| Contact |
| |
| Chuck Smith, AMD (chuck.smith 'at' amd.com) |
| |
| Status |
| |
| Complete. |
| |
| Version |
| |
| Last Modified Date: November 4, 2006 |
| Revision: 1.1 |
| |
| Number |
| |
| 290 |
| |
| Dependencies |
| |
| This extension is written against the OpenGL 1.2.1 Specification. |
| This extension relies on the presence of both ARB_vertex_program |
| and ATI_vertex_array_object. |
| |
| |
| Overview |
| |
| This extension defines an interface that allows multiple sets of |
| generic vertex attribute data to be cached in persistent server-side |
| memory. It is intended to allow client data to be stored in memory |
| that can be directly accessed by graphics hardware. |
| |
| |
| Issues |
| |
| None |
| |
| |
| New Procedures and Functions |
| |
| void VertexAttribArrayObjectATI(uint index, int size, enum type, |
| boolean normalized, sizei stride, |
| uint buffer, uint offset) |
| |
| void GetVertexAttribArrayObjectfvATI(uint index, enum pname, |
| float *params) |
| |
| void GetVertexAttribArrayObjectivATI(uint index, enum pname, |
| int *params) |
| |
| |
| New Tokens |
| |
| None |
| |
| |
| Additions to Chapter 2 of the OpenGL 1.2.1 Specification (Operation) |
| |
| In section 2.6.3, GL Commands within Begin/End, add |
| VertexAttribArrayObjectATI to the list of commands that are not |
| allowed within any Begin/End pair, but may or may not generate an |
| error. |
| |
| |
| At the end of the section titled Vertex Array Objects, between |
| section 2.8, Vertex Arrays, and section 2.9, Rectangles, add the |
| following: |
| |
| A client can define an array of generic vertex attribute data using |
| the command: |
| |
| void VertexAttribArrayObjectATI(uint index, int size, enum type, |
| boolean normalized, sizei stride, |
| uint buffer, uint offset) |
| |
| The <index>, <size>, <type>, <normalized>. and <stride> parameters |
| have the same meaning as the corresponding parameters of |
| VertexAttribPointerARB. The <buffer> and <offset> parameters |
| have the same meaning as the corresponding parameters of |
| ArrayObjectATI. |
| |
| Vertex attribute arrays defined by VertexAttribArrayObjectATI are |
| enabled and disabled in the same way as vertex attribute arrays |
| defined by VertexAttribPointerARB, by using |
| EnableVertexAttribArrayARB and DisableVertexAttribArrayARB. |
| |
| |
| Additions to Chapter 3 of the OpenGL 1.2.1 Specification (Rasterization): |
| |
| None |
| |
| |
| Additions to Chapter 4 of the 1.2.1 Specification (Per-Fragment |
| Operations and the Frame Buffer) |
| |
| None |
| |
| |
| Additions to Chapter 5 of the 1.2.1 Specification (Special Functions) |
| |
| None |
| |
| Additions to Chapter 6 of the 1.2.1 Specification (State and State |
| Requests) |
| |
| Added to the list of queries in section 6.1.3, Enumerated Queries: |
| |
| void GetVertexAttribArrayObject{if}vATI(uint index, enum value, |
| T data); |
| |
| Appended to the description of the queries in section 6.1.3, |
| Enumerated Queries: |
| |
| GetVertexAttribArrayObjectATI is used to retrieve information on a |
| generic vertex attribute array located in an object buffer. The |
| <index> parameter identifies the generic vertex attribute that is to |
| be queried. The <value> and <data> parameters have the same meaning |
| as the corresponding parameters of GetArrayObjectATI. |
| |
| |
| Additions to the AGL/GLX/WGL Specifications |
| |
| None |
| |
| |
| Dependencies on ARB_vertex_program |
| |
| ARB_vertex_program must be present. |
| |
| |
| Dependencies on ATI_vertex_array_object |
| |
| ATI_vertex_array_object must be present. |
| |
| |
| Errors |
| |
| See the specifications for ARB_vertex_program and |
| ATI_vertex_array_object. |
| |
| |
| New State |
| |
| None |
| |
| |
| New Implementation Dependent State |
| |
| None |
| |
| |
| Revision History |
| |
| 11/04/2006 1.1 |
| - updated contact info after ATI/AMD merger. |
| |
| 09/10/2002 1.0 |
| - initial version |
| |
| |