212181 2020-05-20 19:08:12 -0700 EXT_color_buffer_half_float not exposed on iOS 2020-05-21 03:51:18 -0700 1 1 1 Unclassified WebKit WebGL WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 210524 210994 126404 1 kbr kbr dino ews-watchlist graouts jdarpinian justin_fan kondapallykalyan webkit-bug-importer oldest_to_newest 1654777 0 kbr 2020-05-20 19:08:12 -0700 WebKit's WebGL implementation isn't advertising EXT_color_buffer_half_float on iOS (at least the simulator, and almost surely hardware too). FP texture renderability used to be implicit in the non-ANGLE backend, but is explicit now. This means that FP16 textures can't be used as FBO attachments. This functionality difference could be the reason for some content not working. OES_texture_half_float is supported since Bug 210524, and EXT_color_buffer_half float since Bug 210994. 1654822 1 399940 kbr 2020-05-21 00:12:11 -0700 Created attachment 399940 Patch 1654823 2 ews-watchlist 2020-05-21 00:13:12 -0700 Note that there are important steps to take when updating ANGLE. See http://trac.webkit.org/wiki/UpdatingANGLE 1654861 3 ews-feeder 2020-05-21 03:50:59 -0700 Committed r261990: <https://trac.webkit.org/changeset/261990> All reviewed patches have been landed. Closing bug and clearing flags on attachment 399940. 1654862 4 webkit-bug-importer 2020-05-21 03:51:18 -0700 <rdar://problem/63487578> 399940 2020-05-21 00:12:11 -0700 2020-05-21 03:50:59 -0700 Patch bug-212181-20200521001210.patch text/plain 6220 kbr U3VidmVyc2lvbiBSZXZpc2lvbjogMjYxOTg0CmRpZmYgLS1naXQgYS9Tb3VyY2UvVGhpcmRQYXJ0 eS9BTkdMRS9DaGFuZ2VMb2cgYi9Tb3VyY2UvVGhpcmRQYXJ0eS9BTkdMRS9DaGFuZ2VMb2cKaW5k ZXggNjA3YWRhOWE4MDAwODlkMGJjNDFiZDIzZjExMmE5MDM5ZTE5YjJhNS4uOTBjYzU2NmVkMmQw NzgyNjkwNWM2NDVjZDk3YjBhMjMyYWZlNzU4MiAxMDA2NDQKLS0tIGEvU291cmNlL1RoaXJkUGFy dHkvQU5HTEUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9UaGlyZFBhcnR5L0FOR0xFL0NoYW5nZUxv ZwpAQCAtMSwzICsxLDE2IEBACisyMDIwLTA1LTIxICBLZW5uZXRoIFJ1c3NlbGwgIDxrYnJAY2hy b21pdW0ub3JnPgorCisgICAgICAgIEVYVF9jb2xvcl9idWZmZXJfaGFsZl9mbG9hdCBub3QgZXhw b3NlZCBvbiBpT1MKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dp P2lkPTIxMjE4MQorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAg 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