зеркало из https://github.com/AvaloniaUI/angle.git
96 строки
2.2 KiB
Plaintext
96 строки
2.2 KiB
Plaintext
Name
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ANGLE_webgl_compatibility
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Name Strings
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GL_ANGLE_webgl_compatibility
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Contributors
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Geoff Lang
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James Darpinian
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Contact
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Geoff Lang (geofflang 'at' google.com)
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Notice
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Copyright (c) 2016 The Khronos Group Inc. Copyright terms at
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http://www.khronos.org/registry/speccopyright.html
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Status
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Draft
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Version
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Version 3, October 3, 2019
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Number
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OpenGL ES Extension #??
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Dependencies
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Requires OpenGL ES 2.0
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Written against the OpenGL ES 2.0 specification.
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Interacts with EGL_ANGLE_create_context_webgl_compatibility (or equivalent)
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extension.
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Interacts with the ARB_texture_rectangle/ANGLE_texture_rectangle extension.
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Overview
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With this extension enabled, the OpenGL ES context will have additional
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features and validation to be compatible with the WebGL specification.
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New Procedures and Functions
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None
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New Tokens
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None
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Additions to the OpenGL ES Specification
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Additional validation will be performed according to the the sections of
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the WebGL specification entitled "Differences Between WebGL and OpenGL ES
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2.0" and "Differences Between WebGL and OpenGL ES 3.0".
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When the ANGLE_texture_rectangle extension is supported then Enable,
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Disable, and IsEnabled accept the symbolic constant
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TEXTURE_RECTANGLE_ANGLE, which controls whether ARB_texture_rectangle is
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allowed to be used by shaders at compilation time. This is initially
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enabled. WebGL implementations may want to use ARB_texture_rectangle when
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compiling their own shaders but not expose the extension to WebGL user
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shaders. This only affects shader compilation and not any other part of
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the ANGLE_texture_rectangle extension, nor the behavior of already
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compiled shaders.
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New State
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None
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Conformance Tests
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TBD
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Issues
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None
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Revision History
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Rev. Date Author Changes
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---- ------------- --------- ----------------------------------------
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1 Sept 16, 2016 geofflang Initial version
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2 Nov 28, 2016 geofflang Break the extension requests into a
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separate extension.
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3 Oct 3, 2019 jdarpinian Allow disabling ARB_texture_rectangle
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