On Fri, Dec 15, 2023 at 4:49 AM 'Christopher Cameron' via blink-dev < blink-dev@chromium.org> wrote:
> Thank you! > > On Wed, Nov 29, 2023 at 4:24 PM Yoav Weiss <yoavwe...@chromium.org> wrote: > >> Thanks! This seems like an important problem to solve.. >> >> On Monday, November 27, 2023 at 10:20:37 PM UTC+1 Christopher Cameron >> wrote: >> >> Contact emailsccame...@chromium.org >> >> ExplainerNone >> >> >> A short (inline?) explainer can help reviewers assess what this looks >> like and how developers may use it. >> >> As is, it's not clear what the API surface for this is. >> > > Sure! This adds one new call to the WebGLRenderingContextBase interface > (the base interface for WebGL and WebGL2). That call is > > void drawingBufferStorage(GLenum sizedformat, GLsizei width, GLsizei > height); > > This allows the user to change the pixel format (along with the width and > height) of the drawing buffer. This is similar to the existing > renderbufferStorage > <https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.idl;l=601;drc=76de6c12e41b99030fd5413c6f46dabd68862c45> > function, which can be used to change these properties of an explicitly > allocated offscreen buffer. > > >> >> >> Specificationhttps://github.com/KhronosGroup/WebGL/pull/3222 >> >> >> What's preventing the PR from landing? >> > > +Ken Russell <k...@google.com> to verify: My understanding is that the PR > is to land after there exists an implementation shipping this. > Great! If an editor can confirm on the PR that it's blocked only on implementation support, then I'm happy approving this intent. Normally things go in the other order, but I don't actually care which happens first. We just want confirmation that the spec work has been completed to an appropriate quality level to enable future interoperability. >> >> >> Summary >> >> WebGL allows rendering into textures and renderbuffers of many different >> pixel formats (e.g, 8-bit, floating-point, sRGB-encoded, etc). The drawing >> buffer of WebGL (the buffer that is passed to the compositor) is 8-bit by >> default. This feature allows WebGL to configure the pixel format of this >> drawing buffer. This feature enables WebGL developers to: * avoiding an an >> extra copy convert their rendering to the default drawing buffer pixel >> format * draw content that has a more than 8 bits of precision The latter >> feature unlocks several additional applications * very wide color gamut >> content without loss of precision * medical applications which require >8 >> bits of precision * high dynamic range applications (when available) >> >> >> Blink componentBlink>WebGL >> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EWebGL> >> >> TAG reviewNone >> >> TAG review statusNot applicable >> >> Risks >> >> >> Interoperability and Compatibility >> >> None. >> >> >> *Gecko*: Positive Feature authored by Mozilla. >> >> *WebKit*: No signal (https://github.com/WebKit/ >> standards-positions/issues/278) >> >> *Web developers*: Positive Positive feedback from several high profile >> web developers - 3D engines that use physically based rendering - image >> editing formats (especially for HDR) - medical imaging applications (which >> require >8 bit precision) >> >> *Other signals*: This feature's specification was authored by Mozilla. >> >> Ergonomics >> >> None. >> >> >> Activation >> >> No. >> >> >> Security >> >> None. >> >> >> WebView application risks >> >> Does this intent deprecate or change behavior of existing APIs, such that >> it has potentially high risk for Android WebView-based applications? >> >> None >> >> >> Debuggability >> >> No additional debugging support should be needed. >> >> >> Will this feature be supported on all six Blink platforms (Windows, Mac, >> Linux, Chrome OS, Android, and Android WebView)?Yes >> >> The underlying technology (floating point textures) has almost universal >> support. >> >> >> Is this feature fully tested by web-platform-tests >> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> >> ?No >> >> This feature is fully tested using WebGL conformance tests, which has >> been checked in. >> >> >> Flag name on chrome://flags >> >> Finch feature nameNone >> >> Requires code in //chrome?False >> >> Availability expectationFeature is available on Web Platform in less >> than a year following launch in Chrome. >> >> Adoption expectationSeveral specific partners have been using this >> feature being chrome://flags' "experimental web platform features", and >> intend to adopt this as soon as it is supported. >> >> Estimated milestonesShipping on desktop122Shipping on Android122Shipping >> on WebView122 >> >> Anticipated spec changes >> >> Open questions about a feature may be a source of future web compat or >> interop issues. Please list open issues (e.g. links to known github issues >> in the project for the feature specification) whose resolution may >> introduce web compat/interop risk (e.g., changing to naming or structure of >> the API in a non-backward-compatible way). >> None >> >> Link to entry on the Chrome Platform Statushttps://chromestatus.com/ >> feature/5146687245123584 >> >> Links to previous Intent discussionsIntent to prototype: https://groups. >> google.com/a/chromium.org/d/msgid/blink-dev/CAGnfxj-HFt% >> 3Dk5NBHb5SyNT0ERn6w13S3U8%3DBjV8-4EB4EUoAkw%40mail.gmail.com >> >> -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+unsubscr...@chromium.org. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGnfxj9wHToypq6PpVYNajJET0m0RafiBwXPu%2BHG%2BRpQxbpZFw%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGnfxj9wHToypq6PpVYNajJET0m0RafiBwXPu%2BHG%2BRpQxbpZFw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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