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[dart:ui] add documentation to FragmentShader setSampler/setFloat#37503
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auto-submit[bot] merged 2 commits intoflutter:mainfrom Nov 12, 2022
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[dart:ui] add documentation to FragmentShader setSampler/setFloat#37503auto-submit[bot] merged 2 commits intoflutter:mainfrom
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zanderso
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Nov 11, 2022
lib/ui/painting.dart
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| /// | ||
| /// ```glsl | ||
| /// uniform float uScale; | ||
| /// uniform int uPitch; |
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I'm not confident that int (or bool?) uniforms are properly supported yet. We'd at least want setInt() and setBool() methods, so that folks don't have to set int and bool uniforms using setFloat().
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They seem to "work" on skia, I'll dig into this a bit more for impeller
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Yeah this doesn't work when setting fields when we compiler for impellerc. I'll update this to leave them out for now.
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* b57e45e [dart:ui] add documentation to FragmentShader setSampler/setFloat (flutter/engine#37503) * 4b559e6 Roll Skia from a727f7ac8a98 to b126902e7988 (1 revision) (flutter/engine#37547) * e3b3950 Revert "[dart:ui] add documentation to FragmentShader setSampler/setFloat (#37503)" (flutter/engine#37549)
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…utter#37503) * [dart:ui] add documentation to FragmentShader setSampler/setFloat * remove int bool comments
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…loat (flutter#37503)" (flutter#37549) This reverts commit b57e45e.
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…5200) * b57e45e [dart:ui] add documentation to FragmentShader setSampler/setFloat (flutter/engine#37503) * 4b559e6 Roll Skia from a727f7ac8a98 to b126902e7988 (1 revision) (flutter/engine#37547) * e3b3950 Revert "[dart:ui] add documentation to FragmentShader setSampler/setFloat (flutter#37503)" (flutter/engine#37549)
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…5200) * b57e45e [dart:ui] add documentation to FragmentShader setSampler/setFloat (flutter/engine#37503) * 4b559e6 Roll Skia from a727f7ac8a98 to b126902e7988 (1 revision) (flutter/engine#37547) * e3b3950 Revert "[dart:ui] add documentation to FragmentShader setSampler/setFloat (flutter#37503)" (flutter/engine#37549)
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Its a bit confusing how the sampler/float index exactly maps to the order of uniforms in the shader program. Add some API docs to attempt to explain this, along with a code snippet.