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godot-angle-static/doc/ES1Status.md
Shahbaz Youssefi a59430b0ec Update README about GLES1 
Bug: angleproject:1944
Change-Id: I7dd47e76a59da9f3d0f43c8e802e1c335dcf7213
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4158231
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: mohan maiya <m.maiya@samsung.com>
2023-01-11 22:39:57 +00:00

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ES1 Status

ES1 is implemented entirely in the front-end using features from GLES3.0. Therefore, every backend with GLES3 support (i.e. everything other than D3D9) supports GLES1 as well.

ANGLE passes GLES1's MustPass, however there are known missing features.

Features Status Backends
Logic Op Implemented through extensions 1 Vulkan, GL
Palette compressed textures Emulated with uncompressed format Vulkan
Smooth lines Unimplemented None
Two-sided lighting Unimplemented None
Matrix palette Unimplemented (optional) None

Notes [1]

  • Logic op is implemented through the ANGLE_logic_op or EXT_framebuffer_fetch extensions.
  • Currently, these are supported on the Vulkan and GL backends only.