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Exporting for Web: Update info about WebGL

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Rémi Verschelde
2021-06-29 17:40:56 +02:00
parent 4652ac27f2
commit 1e375578c1
1 changed files with 23 additions and 15 deletions
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38
tutorials/export/exporting_for_web.rst
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@@ -12,7 +12,8 @@ in the user's browser.
with :kbd:`F12`, to view **debug information** like JavaScript,
engine, and WebGL errors.
.. attention:: `There are significant bugs when running HTML5 projects on iOS <https://github.com/godotengine/godot/issues?q=is:issue+is:open+label:platform:html5+ios>`__
.. attention:: `There are significant bugs when running HTML5 projects on iOS
<https://github.com/godotengine/godot/issues?q=is:issue+is:open+label:platform:html5+ios>`__
(regardless of the browser). We recommend using
:ref:`iOS' native export functionality <doc_exporting_for_ios>`
instead, as it will also result in better performance.
@@ -24,21 +25,23 @@ in the user's browser.
it's recommended to play the exported project using a Chromium-based browser
instead of Firefox.
WebGL 2
-------
WebGL version
-------------
Until the *OpenGL ES 3* renderer is removed from Godot in favor of *Vulkan*,
HTML5 export uses *WebGL 2* when the *GLES3* option is selected.
Depending on your choice of renderer, Godot can target WebGL 1.0 (*GLES2*) or
WebGL 2.0 (*GLES3*).
.. warning:: Using WebGL 2 is not recommended due to its expected removal
from Godot without replacement.
WebGL 1.0 is the recommended option if you want your project to be supported
on all browsers with the best performance.
WebGL 2 is not supported in all browsers. **Firefox** and
**Chromium** (Chrome, Opera) are the most popular supported browsers,
**Safari** and **Edge** do not work. On **iOS**, all browsers are based on
WebKit (i.e. Safari), so they will also not work.
Godot's GLES3 renderer targets high end devices, and the performance using
WebGL 2.0 can be subpar. Some features are also not supported in WebGL 2.0
specifically.
Godot's WebGL 2 renderer has issues with 3D and is no longer maintained.
Additionally, while most browsers support WebGL 2.0, this is not yet the case
for **Safari**. WebGL 2.0 support is coming in Safari 15 for macOS, and is not
available yet for any **iOS** browser (all WebKit-based like Safari).
See `Can I use WebGL 2.0 <https://caniuse.com/webgl2>`__ for details.
.. _doc_javascript_export_options:
@@ -51,9 +54,14 @@ game in the default browser for testing.
You can choose the **Export Type** to select which features will be available:
- *Regular*: is the most compatible across browsers, will not support threads, nor GDNative.
- *Threads*: will require the browser to support `SharedArrayBuffer <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer>`__
- *GDNative*: enables GDNative support but makes the binary bigger and slower to load.
- *Regular*: is the most compatible across browsers, will not support threads,
nor GDNative.
- *Threads*: will require the browser to support `SharedArrayBuffer
<https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer>`__.
See `Can I use SharedArrayBuffer <https://caniuse.com/sharedarraybuffer>`__
for details.
- *GDNative*: enables GDNative support but makes the binary bigger and slower
to load.
If you plan to use :ref:`VRAM compression <doc_import_images>` make sure that
**Vram Texture Compression** is enabled for the targeted platforms (enabling