WebGL EXT_polygon_offset_clamp Extension Specification

Name

EXT_polygon_offset_clamp

Contact

WebGL working group (public_webgl 'at' khronos.org)

Contributors

Members of the WebGL working group

Version

Last modified date: November 06, 2023
Revision: 3

Number

WebGL extension #50

Dependencies

Written against the WebGL API 1.0 specification.

Overview

This extension exposes the EXT_polygon_offset_clamp functionality to WebGL.

There are no WebGL-specific behavioral changes.

Consult the above extension for documentation, issues and new functions and enumerants.

When this extension is enabled:

• A new parameter is added to the polygon offset function that clamps the calculated offset to a minimum or maximum value.

IDL

[Exposed=(Window,Worker), LegacyNoInterfaceObject]
interface EXT_polygon_offset_clamp {
    const GLenum POLYGON_OFFSET_CLAMP_EXT = 0x8E1B;

    undefined polygonOffsetClampEXT(GLfloat factor, GLfloat units, GLfloat clamp);
};
  

New Functions

undefined polygonOffsetClampEXT(GLfloat factor, GLfloat units, GLfloat clamp)

New Tokens

any getParameter(GLenum pname)

A new enum POLYGON_OFFSET_CLAMP_EXT is accepted as the pname parameter.

pname	returned type
POLYGON_OFFSET_CLAMP_EXT	GLfloat

Revision History

Revision 1, 2023/01/26

• Initial revision.

Revision 2, 2023/02/09

• Promoted to Draft.

Revision 3, 2023/11/06

• WebGL WG promoted to Community Approved on 2023-11-02.