docs: Added basic shader tutorial #3799
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spydon
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spydon
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I can see that you have put a lot of work into this! Which is very appreciated, there is quite a few things that need to be fixed for it to get merged though.
The main things that need to be fixed are:
- Write and explain the things in an order that doesn't give errors, it should be a tutorial not a debug log.
- Inline code needs to only have one back tick before and after the code, only code blocks should have three.
- Code needs to be formatted and analyzed according to the flame_lint rules.
- Basic steps for how to set up flame and flutter should not be included in this tutorial, but it can link to the barebones one (and if anything is missing in that one it should be added there instead).
- There shouldn't be any cspell ignores, add the words to the correct dictionaries.
- Notes should be short.
| @override | ||
| void onHoverEnter() { | ||
| super.onHoverEnter(); |
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The indention depth is wrong everywhere I think, it should be 2 spaces for dart and it's 4
| void onHoverEnter() { | ||
| super.onHoverEnter(); | ||
| final OutlinePostProcess outlinePostProcess = postProcess as OutlinePostProcess; |
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This would trigger the analyzer, I would recommend running all the code in the examples through flame_lint and make sure there are no warnings
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| ```{note} | ||
| The loop of a GLSL shader accepts only a compile time constant. | ||
| So as far as I know we can not use the outline width, because that is a |
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What do you mean with the outline distance here? You should be able to pass uniforms.
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If I try to use the uniforms in shaders as a for loop bound it gives a runtime error:
SkSL Error:
error: 34: loop index initializer must be a constant expression
for (int y = _78; y <= bound; y++)
^^^^^^^^^^^
error: 31: loop index initializer must be a constant expression
for (int x = _67; x <= bound; x++)
^^^^^^^^^^^
2 errorsI checked around the internet for a solution but I did not found any (yet).
I am open to suggestions, because this is clearly a wrong design / pattern in multiple ways.
Attached an image of the setup, with modified code and console and with the result:
doc/tutorials/basic_shader/step5.md
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| Now run the application. | ||
| Open the console (```Ctrl + J```). | ||
| Execute ```flutter run```, then choose your platform. |
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Same here, this should not be needed, just write that they should run it.
kornellapu
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Description
Added Basic Shader Tutirial to Flame documentation.
Added one note to CONTRIBUTING.md, which explains how to resolve non UTF-8 characters in path.
Checklist
docsand added dartdoc comments with///.examplesordocs.Breaking Change?
Related Discussion
Adding tutorial to the documentation as discussed here.
There are changes in the tutorial compared to what was previously discussed: