angle/extensions/ANGLE_multiview_multisample...

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Name
ANGLE_multiview_multisample
Name Strings
GL_ANGLE_multiview_multisample
Contributors
Olli Etuaho, NVIDIA Corporation
Contact
Olli Etuaho (oetuaho 'at' nvidia.com)
Status
Incomplete
Version
Last Modified Date: September 12, 2018
Author Revision: 1
Number
OpenGL ES Extension XX
Dependencies
OpenGL ES 3.0 and the extensions ANGLE_texture_multisample, OVR_multiview2
and OES_texture_storage_multisample_2d_array are required.
With OpenGL ES 3.1, only the extensions ANGLE_multiview and
OES_texture_storage_multisample_2d_array are required.
Overview
This extension enhances the functionality introduced in ANGLE_multiview by
enabling rendering into multisample texture arrays in addition to regular
non-multisampled texture arrays.
IP Status
No known IP claims.
New Tokens
None
New Procedures and Functions
None
Additions to Chapter 4 of the OpenGL ES 3.0 Specification
(Per-Fragment Operations and the Framebuffer)
Modify section 4.4.2 (Attaching Images to Framebuffer Objects), p. 202
Add the following bullet point:
"* Layers of a two-dimensional multisample array texture which can be used
for multi-view rendering."
Modify the error list of FramebufferTextureMultiviewOVR:
Change
"An INVALID_OPERATION error is generated if texture is not zero,
and does not name an existing texture object of type TEXTURE_2D_ARRAY."
to
"An INVALID_OPERATION error is generated if texture is not zero,
and does not name an existing texture object of type TEXTURE_2D_ARRAY or
TEXTURE_2D_MULTISAMPLE_ARRAY_OES."
Modify section 4.4.4.1 (Framebuffer Attachment Completeness), p. 213
Change the bullet point about num_views and base_view_index:
"If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is TEXTURE and
the value of FRAMEBUFFER_ATTACHMENT_OBJECT_NAME names a two-dimensional
array texture or a two-dimensional multisample array texture, then the sum
of FRAMEBUFFER_ATTACHMENT_TEXTURE_NUM_VIEWS_ANGLE and
FRAMEBUFFER_ATTACHMENT_TEXTURE_BASE_VIEW_INDEX_ANGLE must be less than the
number of layers in the texture."
Additions to the AGL/EGL/GLX/WGL Specifications
None
Errors
None
Issues