kc3-lang/angle/extensions/ANGLE_multiview_multisample.txt

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• Hash : 7d64c486
  Author :
  Date : 2019-03-12T14:27:40
  

  GL_ANGLE_multiview has been renamed to GL_OVR_multiview2.
  
  changes include:
  1) GL_OVR_multiview to GL_OVR_multiview2 extension directive change
  2) Removal of all references to side by side. We no longer support multiple views in a single 2DTexture. Only 2DTextureArray's are supported
  3) WebGL 2 (ES3) is required for multiview
  
  Bug: angleproject:3341
  Change-Id: Ie0c1d21d7610f8feebdb2e4d01c6947f57e69328
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1552023
  Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• extensions/ANGLE_multiview_multisample.txt

• 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
  

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