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.