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Fix/arvr raycasts #5

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@bzztbomb bzztbomb commented May 2, 2018

Bastiaan:

Thanks for responding to my pull request yesterday. You definitely cleared up the issue I was having. I did a poor job explaining the problem I was trying to solve. I was fixing raycast issues and went down a weird road thinking the rendering was using the wrong projection matrix (which I now see it wasn't, thanks!)

Anyways, this PR contains two quick fixes:

  1. Camera::project_local_normal wasn't virtual so ARVRCamera::project_local_normal was never getting called.
  2. Convert to using the ARCamera projectMatrix* method so we can set near and far, this was needed so the ARVRCamera z near/far used for raycasts matched the projectionMatrix near/far used in rendering.

So now in the test project when you touch the screen on the edge, the Godotball will spawn right under your finger instead of of screen.

Thanks again for your help.

@BastiaanOlij
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Sweet! Damn, totally overlooked the virtual thing when I last played with this. Can you put that change in as a PR on the main Godot repository? I'll nudge the guys on IRC after you do that to merge it in and I can rebase this.

As for the projection matrix change, thats looking good, only thing to double check is if it works correctly when the app is set in portrait mode or whether the width and height need to be swapped.

I'll be able to test this over the weekend (after a rebase) and I'll merge it in.

Thanks man!

@bzztbomb
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bzztbomb commented May 3, 2018

Created the mainline PR, it's here: godotengine#18572

Yeah, I forgot that Godot can run in portrait mode. I'm guessing we'll have to update the call to take that into account. Our repo is handling the windowing a bit differently, so I was trying to get these changes back out to folks until we are ready to see if our windowing changes are ready for the larger world. heh.

@BastiaanOlij
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Seeing how ARKit is used I'm happy for it to just be working in one orientation but I did have someone email me about it some time ago because he was working on something where the user can flip the screen from portrait to landscape and he had everything changing along but ARKit was misbehaving.

I haven't looked into it further because for a while I couldn't deploy to my phone and I might still be stuck because Apple now demands you to be on High Sierra but my Mac is stuck on Sierra because of some legacy apps I need to use for work.

BastiaanOlij pushed a commit that referenced this pull request Aug 13, 2018
Added support for single channel inputs for CoreAudio
@BastiaanOlij
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Totally forgot about these, need to redo these on upstream now that arkit is already merged

BastiaanOlij pushed a commit that referenced this pull request Jun 23, 2023
Fixes godotengine#76581.

TSAN flagged this issue on starting the editor:

1. main calls register_core_types, which calls IP::create(), which calls Thread::start on the resolver thread
2. Thread::callback calls ScriptServer::thread_enter(), as "Scripts may need to attach a stack."
3. ScriptServer::thread_enter() accesses ScriptServer::_languages, which is still being initialized on the main thread by initialize_gdscript_module

This fixes the issue by skipping thread enter/exit notifications if languages have not finished initializing yet.
I'm assuming that notifying un-initialized languages of thread starts/stops would have been pointless anyways. If we need to somehow notify languages of threads before the languages initialize, we'll need a different solution.

```
Godot Engine v4.0.2.stable.custom_build.7a0977ce2 - https://godotengine.org
==================
WARNING: ThreadSanitizer: data race (pid=9426)
  Write of size 4 at 0x55615b187cd0 by main thread:
    #0 ScriptServer::register_language(ScriptLanguage*) /home/rcorre/src/godot/godot/core/object/script_language.cpp:177:28 (godot.linuxbsd.editor.x86_64.llvm.san+0x9e52ab9) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #1 initialize_gdscript_module(ModuleInitializationLevel) /home/rcorre/src/godot/godot/modules/gdscript/register_types.cpp:118:3 (godot.linuxbsd.editor.x86_64.llvm.san+0x36f9c6f) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #2 initialize_modules(ModuleInitializationLevel) /home/rcorre/src/godot/godot/modules/register_module_types.gen.cpp:93:2 (godot.linuxbsd.editor.x86_64.llvm.san+0x2f50499) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #3 Main::setup2(unsigned long) /home/rcorre/src/godot/godot/main/main.cpp:1961:2 (godot.linuxbsd.editor.x86_64.llvm.san+0x2f1d40d) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #4 Main::setup(char const*, int, char**, bool) /home/rcorre/src/godot/godot/main/main.cpp:1879:10 (godot.linuxbsd.editor.x86_64.llvm.san+0x2f16370) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #5 main /home/rcorre/src/godot/godot/platform/linuxbsd/godot_linuxbsd.cpp:61:14 (godot.linuxbsd.editor.x86_64.llvm.san+0x2e67e1f) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)

  Previous read of size 4 at 0x55615b187cd0 by thread T1:
    #0 ScriptServer::thread_enter() /home/rcorre/src/godot/godot/core/object/script_language.cpp:244:22 (godot.linuxbsd.editor.x86_64.llvm.san+0x9e54aed) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #1 Thread::callback(unsigned long, Thread::Settings const&, void (*)(void*), void*) /home/rcorre/src/godot/godot/core/os/thread.cpp:61:2 (godot.linuxbsd.editor.x86_64.llvm.san+0x9464ab0) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #2 void std::__invoke_impl<void, void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>(std::__invoke_other, void (*&&)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long&&, Thread::Settings&&, void (*&&)(void*), void*&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:61:14 (godot.linuxbsd.editor.x86_64.llvm.san+0x9465283) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #3 std::__invoke_result<void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>::type std::__invoke<void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>(void (*&&)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long&&, Thread::Settings&&, void (*&&)(void*), void*&&) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/invoke.h:96:14 (godot.linuxbsd.editor.x86_64.llvm.san+0x9465283)
    #4 void std::thread::_Invoker<std::tuple<void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>>::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul>) /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:258:13 (godot.linuxbsd.editor.x86_64.llvm.san+0x9465283)
    #5 std::thread::_Invoker<std::tuple<void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>>::operator()() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:265:11 (godot.linuxbsd.editor.x86_64.llvm.san+0x9465283)
    #6 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(unsigned long, Thread::Settings const&, void (*)(void*), void*), unsigned long, Thread::Settings, void (*)(void*), void*>>>::_M_run() /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../include/c++/12.2.1/bits/std_thread.h:210:13 (godot.linuxbsd.editor.x86_64.llvm.san+0x9465283)
    #7 execute_native_thread_routine /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:82:18 (libstdc++.so.6+0xd72c2) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)

  Location is global 'ScriptServer::_language_count' of size 4 at 0x55615b187cd0 (godot.linuxbsd.editor.x86_64.llvm.san+0xbf46cd0)

  Thread T1 (tid=9431, running) created by main thread at:
    #0 pthread_create <null> (godot.linuxbsd.editor.x86_64.llvm.san+0x2de5776) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #1 __gthread_create /usr/src/debug/gcc/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd73a9) (BuildId: 6fe66a2d539a78c993bd2d377e00fad389220963)
    #2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State>>, void (*)()) /usr/src/debug/gcc/gcc/libstdc++-v3/src/c++11/thread.cc:147:37 (libstdc++.so.6+0xd73a9)
    #3 IP::IP() /home/rcorre/src/godot/godot/core/io/ip.cpp:347:19 (godot.linuxbsd.editor.x86_64.llvm.san+0x962cbcd) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #4 IPUnix::IPUnix() /home/rcorre/src/godot/godot/drivers/unix/ip_unix.cpp:261:9 (godot.linuxbsd.editor.x86_64.llvm.san+0x4aee599) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #5 IPUnix::_create_unix() /home/rcorre/src/godot/godot/drivers/unix/ip_unix.cpp:258:9 (godot.linuxbsd.editor.x86_64.llvm.san+0x4aee599)
    #6 IP::create() /home/rcorre/src/godot/godot/core/io/ip.cpp:339:9 (godot.linuxbsd.editor.x86_64.llvm.san+0x962ca5e) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #7 register_core_types() /home/rcorre/src/godot/godot/core/register_core_types.cpp:279:7 (godot.linuxbsd.editor.x86_64.llvm.san+0x93e2333) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #8 Main::setup(char const*, int, char**, bool) /home/rcorre/src/godot/godot/main/main.cpp:690:2 (godot.linuxbsd.editor.x86_64.llvm.san+0x2f08a49) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)
    #9 main /home/rcorre/src/godot/godot/platform/linuxbsd/godot_linuxbsd.cpp:61:14 (godot.linuxbsd.editor.x86_64.llvm.san+0x2e67e1f) (BuildId: 780a9db7c37d88e78d5ee659c4fa1cd378abd048)

SUMMARY: ThreadSanitizer: data race /home/rcorre/src/godot/godot/core/object/script_language.cpp:177:28 in ScriptServer::register_language(ScriptLanguage*)
```

Co-authored-by: Pedro J. Estébanez <[email protected]>
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