also, specify font config on the constructor for ImGuiController

LLyris the Kitori did you regenerate the font atlas?

R

Rorschach•10/26/22, 4:21 PM

if I call

ImGuiNET.ImGui.GetIO().Fonts.Build();

ImGuiNET.ImGui.GetIO().Fonts.Build();

ImGuiNET.ImGui.GetIO().Fonts.Build();

ImGuiNET.ImGui.GetIO().Fonts.Build(); all fonts are gone

LLyris the Kitori also, specify font config on the constructor for ImGuiController

R

Rorschach•10/26/22, 4:22 PM

yes, I load my deafult UI font, which works fine

R

Rorschach•10/26/22, 4:22 PM

Silk.NET.OpenGL.Extensions.ImGui.ImGuiFontConfig fontConfDefault = new(Path.Combine(assemblyPath, @"Inter-Font.ttf"), 14);
_Controller = new ImGuiController(
    _Gl = _Window.CreateOpenGL(),
    _Window,
    _InputContext = _Window.CreateInput(), 
    fontConfDefault
);

Silk.NET.OpenGL.Extensions.ImGui.ImGuiFontConfig fontConfDefault = new(Path.Combine(assemblyPath, @"Inter-Font.ttf"), 14);
_Controller = new ImGuiController(
    _Gl = _Window.CreateOpenGL(),
    _Window,
    _InputContext = _Window.CreateInput(), 
    fontConfDefault
);

Silk.NET.OpenGL.Extensions.ImGui.ImGuiFontConfig fontConfDefault = new(Path.Combine(assemblyPath, @"Inter-Font.ttf"), 14);
_Controller = new ImGuiController(
    _Gl = _Window.CreateOpenGL(),
    _Window,
    _InputContext = _Window.CreateInput(), 
    fontConfDefault
);

Silk.NET.OpenGL.Extensions.ImGui.ImGuiFontConfig fontConfDefault = new(Path.Combine(assemblyPath, @"Inter-Font.ttf"), 14);
_Controller = new ImGuiController(
    _Gl = _Window.CreateOpenGL(),
    _Window,
    _InputContext = _Window.CreateInput(), 
    fontConfDefault
);

R

Rorschach•10/26/22, 4:24 PM

I tried to merge the two fonts before creating the controller but unfortunately ImGuiFontConfig does not provide any means to load a range of glyphs or merge fonts

R

Rorschach•10/26/22, 4:24 PM

however PushFont() should always work...

L

Lyris the KitoriOP•10/26/22, 4:25 PM

run the app under gdb or smthn and try to get a stack trace

LLyris the Kitori run the app under gdb or smthn and try to get a stack trace

R

Rorschach•10/26/22, 4:35 PM

how do I set this up? Im on linux in VSCode

L

Lyris the KitoriOP•10/26/22, 4:36 PM

https://www.suse.com/support/kb/doc/?id=000016799

Using gdb to get a backtrace of a failing application | Support | SUSE

LLyris the Kitori run the app under gdb or smthn and try to get a stack trace

R

Rorschach•10/26/22, 4:48 PM

New Thread 0x7fff740506c0 (LWP 27671)]

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) () from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so

New Thread 0x7fff740506c0 (LWP 27671)]

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) () from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so

New Thread 0x7fff740506c0 (LWP 27671)]

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) () from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so

New Thread 0x7fff740506c0 (LWP 27671)]

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) () from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so

R

Rorschach•10/26/22, 4:49 PM

ImGuiNET.ImGui.PushFont

ImGuiNET.ImGui.PushFont

ImGuiNET.ImGui.PushFont

ImGuiNET.ImGui.PushFont actually segfaults

R

Rorschach•10/26/22, 4:53 PM

gdb (bt)
#0  0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#1  0x00007fff41923d6c in ImGui::PushFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#2  0x00007fff7ee34a6d in ?? ()
#3  0x0000000000effd1b in ?? ()
#4  0x00007ffff7878f18 in ?? () from /usr/share/dotnet/shared/Microsoft.NETCore.App/6.0.9/libcoreclr.so
#5  0xffffffffffffffff in ?? ()
#6  0x00007fff7ed29bb8 in ?? ()
#7  0x00007ffff7fc4080 in ?? ()
#8  0x00007fffffffcac0 in ?? ()
#9  0x00007fff7ee34a6d in ?? ()
#10 0x00007fffffffcb40 in ?? ()
#11 0x0000000000050021 in ?? ()
#12 0x0000555555606030 in ?? ()
#13 0x0000555556818fc0 in ?? ()
#14 0x00007fffffffd4f0 in ?? ()
#15 0x00007fffffffd658 in ?? ()
#16 0x0000000000000000 in ?? ()

gdb (bt)
#0  0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#1  0x00007fff41923d6c in ImGui::PushFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#2  0x00007fff7ee34a6d in ?? ()
#3  0x0000000000effd1b in ?? ()
#4  0x00007ffff7878f18 in ?? () from /usr/share/dotnet/shared/Microsoft.NETCore.App/6.0.9/libcoreclr.so
#5  0xffffffffffffffff in ?? ()
#6  0x00007fff7ed29bb8 in ?? ()
#7  0x00007ffff7fc4080 in ?? ()
#8  0x00007fffffffcac0 in ?? ()
#9  0x00007fff7ee34a6d in ?? ()
#10 0x00007fffffffcb40 in ?? ()
#11 0x0000000000050021 in ?? ()
#12 0x0000555555606030 in ?? ()
#13 0x0000555556818fc0 in ?? ()
#14 0x00007fffffffd4f0 in ?? ()
#15 0x00007fffffffd658 in ?? ()
#16 0x0000000000000000 in ?? ()

gdb (bt)
#0  0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#1  0x00007fff41923d6c in ImGui::PushFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#2  0x00007fff7ee34a6d in ?? ()
#3  0x0000000000effd1b in ?? ()
#4  0x00007ffff7878f18 in ?? () from /usr/share/dotnet/shared/Microsoft.NETCore.App/6.0.9/libcoreclr.so
#5  0xffffffffffffffff in ?? ()
#6  0x00007fff7ed29bb8 in ?? ()
#7  0x00007ffff7fc4080 in ?? ()
#8  0x00007fffffffcac0 in ?? ()
#9  0x00007fff7ee34a6d in ?? ()
#10 0x00007fffffffcb40 in ?? ()
#11 0x0000000000050021 in ?? ()
#12 0x0000555555606030 in ?? ()
#13 0x0000555556818fc0 in ?? ()
#14 0x00007fffffffd4f0 in ?? ()
#15 0x00007fffffffd658 in ?? ()
#16 0x0000000000000000 in ?? ()

gdb (bt)
#0  0x00007fff41923d19 in ImGui::SetCurrentFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#1  0x00007fff41923d6c in ImGui::PushFont(ImFont*) ()
   from /home/rik/test/bin/Debug/net6.0/runtimes/linux-x64/native/libcimgui.so
#2  0x00007fff7ee34a6d in ?? ()
#3  0x0000000000effd1b in ?? ()
#4  0x00007ffff7878f18 in ?? () from /usr/share/dotnet/shared/Microsoft.NETCore.App/6.0.9/libcoreclr.so
#5  0xffffffffffffffff in ?? ()
#6  0x00007fff7ed29bb8 in ?? ()
#7  0x00007ffff7fc4080 in ?? ()
#8  0x00007fffffffcac0 in ?? ()
#9  0x00007fff7ee34a6d in ?? ()
#10 0x00007fffffffcb40 in ?? ()
#11 0x0000000000050021 in ?? ()
#12 0x0000555555606030 in ?? ()
#13 0x0000555556818fc0 in ?? ()
#14 0x00007fffffffd4f0 in ?? ()
#15 0x00007fffffffd658 in ?? ()
#16 0x0000000000000000 in ?? ()

R

Rorschach•10/26/22, 5:14 PM

I opened a new issue: https://github.com/dotnet/Silk.NET/issues/1110

GitHub

Adding fonts via ImGuiNET.ImGui.PushFont() segfaults on Linux · Iss...

Summary Adding any font via the providers helper methods crashes the application as soon as one tries to ImGuiNET.ImGui.PushFont(). Rebuilding the font atlas through ImGuiNET.ImGui.GetIO().Fonts.Bu...

C

Catsillas•10/27/22, 3:17 AM

any support for pasting text into a window?

CCatsillas any support for pasting text into a window?

L

Lyris the KitoriOP•10/27/22, 3:17 AM

yea theres a 'clipboard' property on IKeyboard

C

Catsillas•10/27/22, 3:18 AM

oh nice, im very new to this lib, have used opentk in the past
so is there no event for it? gotta detect ctrl + v manually?

L

Lyris the KitoriOP•10/27/22, 3:18 AM

yup its manual

C

Catsillas•10/27/22, 3:18 AM

makes sense

C

Catsillas•10/27/22, 3:18 AM

thanks!

L

Lyris the KitoriOP•10/27/22, 3:19 AM

np

C

Catsillas•10/27/22, 3:19 AM

to what extent are the generic vectors used? big fan of using system numerics in the gl calls though, was scared when i saw the Vector2D in the window options

L

Lyris the KitoriOP•10/27/22, 3:20 AM

they are only used where necessary

L

Lyris the KitoriOP•10/27/22, 3:20 AM

and shouldnt cause any problems

C

Catsillas•10/27/22, 3:20 AM

L

Lyris the KitoriOP•10/27/22, 3:21 AM

while speed isnt (and cant be) the same as System.Numerics, its well fast enough for basically all cases

C

Catsillas•10/27/22, 3:21 AM

yeah i was mostly worried about the gl calls specifically but i saw those use system numerics types, was pretty happy, so annoying converting between different math libs for that stuff

L

Lyris the KitoriOP•10/27/22, 3:22 AM

you wont see a Vector2D<float> anywhere

L

Lyris the KitoriOP•10/27/22, 3:22 AM

(if you do, thats likely a bug/oversight)

L

Lyris the KitoriOP•10/27/22, 3:22 AM

anywhere where we can, we use System.Numerics

L

Lyris the KitoriOP•10/27/22, 3:22 AM

Silk.NET.Math is simply there to fill in what System.Numerics is missing

C

Catsillas•10/27/22, 3:23 AM

dream come true, so does that mean your matrix types are the same majorness as the numerics types?

L

Lyris the KitoriOP•10/27/22, 3:23 AM

should be the same yup

C

Catsillas•10/27/22, 3:23 AM

should have been here day one

L

Lyris the KitoriOP•10/27/22, 3:23 AM

we try to make using everything as seemless as possible

C

Catsillas•10/27/22, 3:24 AM

its a wonderful contrast to opentk haha

L

Lyris the KitoriOP•10/27/22, 3:25 AM

if i remember correctly, perksey (one of the founders of Silk) is actually from OpenTK, so we had a good starting point for fixing some of the pain points of it

L

Lyris the KitoriOP•10/27/22, 3:25 AM

although silk isnt a 100% replacement for OpenTK in all cases

C

Catsillas•10/27/22, 3:25 AM

yeah i remember hearing about that, i also dont think its the fault of opentk i realize a lot of those issues are for legacy reasons

L

Lyris the KitoriOP•10/27/22, 3:28 AM

OpenTK also has kinda different goals than Silk, its different stokes for different folks

CCatsillas dream come true, so does that mean your matrix types are the same majorness as t...

N

Noggin_bops•10/27/22, 8:16 AM

Reminder that System.Numerics is row major, the same as OpenTK

J

Jolleyslam•10/29/22, 6:12 PM

What do I need to do if I'd want to develop mobile apps with Silk.NET and native functionality, like accessing the gallery. Mainly targeting Android, maybe iOS. Do I base the project off of Xamarin or MAUI? Just trying to figure out the first steps here

P

Perksey•10/29/22, 6:13 PM

neither, all you need to use is net6.0-android

P

Perksey•10/29/22, 6:14 PM

take a look at this demo https://github.com/dotnet/Silk.NET/tree/main/examples/CSharp/OpenGL%20Demos/AndroidDemo

J

Jolleyslam•10/29/22, 6:18 PM

Oh wow that's awesome, can't believe I missed that example

J

Jolleyslam•10/29/22, 6:18 PM

But then it would only run on Android right? I'd have to completely give up on iOS?

P

Perksey•10/29/22, 6:25 PM

iOS is not officially supported by silk today

P

Perksey•10/29/22, 6:25 PM

there are technically code paths that exist but they haven’t been tested & verified for production

R

Redhacker2•10/29/22, 6:25 PM

so don't get your hopes up in other words?

J

Jolleyslam•10/29/22, 6:25 PM

Alright, fair enough. Thanks!

RRedhacker2 so don't get your hopes up in other words?

P

Perksey•10/29/22, 6:26 PM

hello how can I help you

L

Lyris the KitoriOP•10/29/22, 6:26 PM

(if you do test it out and get it to work, please send us a minimal example we would be forever grateful)

also, specify font config on the constructor for ImGuiController

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