Contents

• Dependencies
• Overview
• New Procedures and Functions
• New Tokens
• Errors
• New State
• New Implementation Dependent State

Dependencies

This extensions is written against the OpenGL 1.2 Specification. May be implemented in any version of OpenGL.

Overview

New functions and tokens are added allowing application matrices stored in row major order rather than column major order to be transferred to the OpenGL implementation. This allows an application to use standard C-language 2-dimensional arrays (m[row][col]) and have the array indices match the expected matrix row and column indexes. These arrays are referred to as transpose matrices since they are the transpose of the standard matrices passed to OpenGL.

This extension adds an interface for transfering data to and from the OpenGL pipeline, it does not change any OpenGL processing or imply any changes in state representation.

New Procedures and Functions

void LoadTransposeMatrix{fd}ARB(T m[16]); void MultTransposeMatrix{fd}ARB(T m[16]);

New Tokens

Accepted by the

<pname>

parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev

|TRANSPOSE_MODELVIEW_MATRIX_ARB | 0x84E3| |:-----------------------------------|:------| |TRANSPOSE_PROJECTION_MATRIX_ARB | 0x84E4| |TRANSPOSE_TEXTURE_MATRIX_ARB | 0x84E5| |TRANSPOSE_COLOR_MATRIX_ARB | 0x84E6|

Errors

No new errors, but error behavoir is inherited by the commands that the transpose commands are implemented on top of (LoadMatrix, MultMatrix, and Get*).

New State

None

TRANSPOSE_*_MATRIX_ARB refer to the same state as their non-transposed counterparts.

New Implementation Dependent State

None