Ocornut imgui font quality. The default truetype renderer provided by stb_truetype doesn’t behave well enough for small size. 86 when using ImGui-SFML v2. 375 Feb 14, 2015 · Fonts: ImFontConfig::OversampleH now defaults to 2 instead of 3, since the quality increase is largely minimal. It is fast, portable, renderer agnostic, and self-contained (no external dependencies). // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! Aug 6, 2023 · Besides, for Chinese users new to fonts and characters in computers, mind this: never use fonts whose name contains "GB", which refers to "国标". lib. Alternatively, after calling ImGui::Text () you can use GetItemRectMin () / GetItemRectMax () to retrieve the bounding box for the last submitted item. You can do Fonts. b. When I change groups [0]. Right now the workaround is to call Fonts->Clear() and re-add Dec 4, 2015 · Solved this offline. fonts[buttons] = fontItalic16p; style. Any time I display a single line of text, no matter how many widgets I stack in a window, everything looks fine. Fonts->Clear (), io. The files in this folder are suggested fonts, provided as a convenience. There are effectively two ways to fix that: Downgrade to imgui v1. g Fonts: ImFontConfig::OversampleH now defaults to 2 instead of 3, since the quality increase is largely minimal. Apr 23, 2018 · The assert comes from an issue / limitation with the stack checker because it compares stack size at the boundaries of window Begin/End. 0. Fonts: ImFontConfig::OversampleH now defaults to 2 instead of 3, since the quality increase is largely minimal. Feb 11, 2017 · Dear Ocornut, is there a chance to change the font size within a ImGui::Child or a ImGui::Begin? I have checked a lot of options no result so far. zip - Bitmap-only TTF containing all available glyphs. 2 participants. 375,0. a) If the font isn't crisp (compare your render to the screenshot) it means your rendering hasn't been set up correctly. cpp Jan 19, 2016 · ImGui default to a 2048 pixel wide texture here. I can use ImGui::SetWindowFontScale() to size my fonts and give me different sizes depending on need. My Issue/Question: My Image is replaced by Font Image,The image data seems to be read properly from the filesystem, since the box size is the correct one. We will load this image: (Right-click to save as MyImage01. FontDefault = font) I works ok but always having one more font loaded. fonts[titlebars] = fontBold20p; style. cpp line 3007: a reference of type ImGuiStyle & cannot be initialized with a value of type= ImGuiContext * imgui. Fonts. Aug 28, 2014 · ocornut commented on Aug 29, 2014. this is my code. I would like to be able to change Font by calling. A common pattern is to merge the icon font within your main font, so you can embed icons directly from your strings without having to change fonts back and forth. Usage. Could you please explain the issue here and suggest a solution? ImGuiIO & io = ImGui::GetIO(); May 12, 2015 · Looks like a bug, after building the font atlas we call ImFontAtlas::ClearTexData(). As expected, fontSans acts Because this is such a recurring issue for Dear ImGui users, we are providing a guide here. PixelCenterOffset to 0. ttf]], 10, nil, nil) I am getting crashes so I did gdb with Debug and RelWithDebInfo: --Debug version Program: C:\luaGL\luajit. You switched accounts on another tab or window. Hint: use imgui to debug your imgui issues! If you call ImGui::ShowStyleEditor() it has a block that allows you to inspect what your fonts are. Feb 20, 2018 · ocornut commented on Feb 20, 2018. Torino1564 started on Dec 25, 2023 in Build/Link/Run/Fonts issues ONLY! Explore the GitHub Discussions forum for ocornut imgui in the Build Link Run Fonts Issues Only category. // - Read 'docs/FONTS. 8 with Vulkan backend on Linux and a custom font (DejaVu Sans 12/14px and DejaVuSans Mono 12px are all affected so far, have not tried others yet). Feb 13, 2019 · I've used ImFontConfig::GlyphOffset (using floats for fine tuned alignment) to align an in-house custom icon font (generated by IcoMoon) and a general typography font (Sintony from Google) merged at a size of 16. I just want to change my normal FontSize between my Childs. Feb 4, 2024 · Saved searches Use saved searches to filter your results more quickly Dec 12, 2023 · Saved searches Use saved searches to filter your results more quickly Nov 28, 2014 · It uses a font atlas to assemble multiple fonts into the same texture. window, false); imgui. com) to locate files in a second. The default value is set to (0. I've fixed using a full 0-255 Ascii character range by adding a FullAscii bool to ImFontConfig which defaults to false. ttc", 20. Version: 1. 17+, all ImGUI text output is very blurry compared to when using the OpenGL 2 backend. You can PushFont () / PopFont () during rendering. Added partial support for colored font glyph in imgui_freetype (courtesy of @pshurgal). Dec 12, 2017 · @ocornut stb_truetype. Sep 9, 2023 · I'm using imgui 1. // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. #include "Utils/style. Dec 29, 2019 · This gives me a perfectly crisp font at an easily readable size, but the default layout (when no imgui. I have two files, main. Mar 23, 2024 · PopStyleColor then nicely reverts it back. The best solution would be to add our font characters to the already existing font atlas. (Krys was adding font with the Merge flags so they were all merged into the same font, so first set of glyph was choosen for regular text) ocornut closed this as completed on Dec 4, 2015. As far as I understand it the guideline is to only do so before frame initialization but the line is a bit blurry with the demo's ShowStyleEditor writing mid-frame. resolutionScale which is for the default font of my engine's gui, then there's A LITTLE chance that a glitch happens on ImGui Windows Text. Thats why I am storing them in an array, But using mergeGlyphes a second time leads to crash on ImGui_ImplDX11_CreateFontsTexture(). 375), or 2/ change GetIO (). That said , in my implementation of the rendering, there is no reason why it won't work on coloured backgrounds or with transparency (or with the text being coloured itself, though there are caveats there), as Using Icon Fonts. Apr 2, 2019 · Rendering subpixel fonts is outside the purview of the pull request that I'll submit to imgui, as imgui delegates actual rendering out. Main. Reload to refresh your session. Add imgui_freetype. It's not as great looking as 2-channel SDF generation, but by using it then someone can generate a single SDF font image that would look great at all sizes (though it would look better if 2-channel, stb is open for PR's though!). Maybe your font was loaded after the default font. Fonts, imgui_freetype: Added support to render OpenType SVG fonts using lunasvg. last month. There is a ImGui::CalcTextSize () function which everything you need. c++ and styles. io. Everytime you call Clear () ot AddFont** () functions the texture data will be invalidated and But as I found out, it uses font data (which is logical), but this font itself is not loaded at the initialization stage (through the AddFontFromFileTTF function), and it is NULL. The text was updated successfully, but these errors were encountered: Dear ImGui is very programmer centric and the immediate-mode GUI paradigm might require you to readjust some habits before you can realize its full potential. First make sure you update to the latest version, then try 1/ to offset your projection matrix by (0. ImGui_ImplOpenGL3_DestroyFontsTexture () ig. 7k; Star 56. It is fast, portable, renderer agnostic and self-contained (no external dependencies). ) Linking errors with backends and vcpkg. h"; #include <string> #ifdef _WIN64 #define GWL_WNDPRO Author. 😄 1. If you really want to do this you should at least use DirectWrite, which is designed for text rendering within DirectX apps. Mar 3, 2021 · I think the simplest solution is to temporary malloc a new array in the backend, copy/convert and then upload that to video memory. #include "font/IconsFontAwesome4. cpp. Oct 8, 2019 · A side note to this too is that the quality does appear to depend on how much of the window is visible on screen. Oct 15, 2023 · ocornut commented on Oct 15, 2023. Fonts->GetTexDataAsRGBA32 (). Use the demo window to go the style editor and browse fonts to see if your font is load3; and how many fonts there are. rhz17 opened this issue on Nov 29, 2019 · 2 comments. g io. Either way neither solution is going to be suitable for Dear ImGui because they're Windows Mar 3, 2024 · Saved searches Use saved searches to filter your results more quickly Aug 18, 2018 · I am attempting to merge the fonts in my init function as shown below. Jul 16, 2023 · Saved searches Use saved searches to filter your results more quickly Font Outline #2909. 0f, &icons_config, icons_ranges ); // use FONT_ICON_FILE_NAME_FAR if you Mar 27, 2018 · Yes this indeed an issue with the current code. by @vuhdo, @mikesart, @ocornut. Mar 16, 2021 · Fonts-> Clear (); // Load Fonts // - If no fonts are loaded, dear imgui will use the default font. Hello, i was trying to load a custom font, but the custom font is not loading (no errors). Dear ImGui is built to be efficient and scalable toward the needs for AAA-quality applications running all day. It's been a little annoying in several other situations, would like to improve it without completely removing it. No milestone. Jun 6, 2023 · You signed in with another tab or window. Backends: DX9: Fix handling of colored textures ( #3844, #3868) 662535f. h/cpp alongside your project files. 89 Branch: mian itemFont = io. . All reactions. ini is present) has the windows overlap even though there is ample space available to the right (not shown on this screenshot, but the monitor is 4k, and the window uses 7/8ths of that): When I draw text in ImGUI using the "Zapfino. You could also write the colors directly into that table if the Lua bindings you're using implement that. ocornut commented on May 9, 2022 via email. When I change groups [1]. The TTF is 561 KiB. The stbtt_PackFontRangesGatherRects() call in stb_truetype don't check for missing glyph which ends up rendering the first glyph of the font, we need to refactor a bit of the font building function. . Closed. I have an application that I am currently porting from NanoVG to ImGui. cpp Operating System: Windows 10. cpp to further increase the default width is not specified: Jun 23, 2023 · Back-ends: imgui_impl_GLFW. In this case you can use PushFont at the beginning of your frame to change the font, or you can register your font in a different place so it is the default font. Build font atlases using FreeType instead of stb_truetype (which is the default font rasterizer). You can call . So additional care must be taken into account. Our font rendering is not as good as OS ones for two mains reasons (but not only that): - stb_truetype doesn’t handle font hinting. ttf" font at a size of "96px," it does not display at the original font size. If you drag this example to the bottom corner of the window so only part of it shows, the quality returns. Font //this is the code to get current font. I am trying to customize the appearance of ImGui and I found that while the Font structure has a DisplayOffset member which controls the global offset of a font, it can not be specified through the API. I have loaded two fonts during initialization, fontSans and fontTitle. Apr 10, 2021 · Milestone. Fonts->GetGlyphRangesChineseFull()); ImGui Fonts: ImFontConfig::OversampleH now defaults to 2 instead of 3, since the quality increase is largely minimal. There are also variety of lower-level tunction in ImFont which you may use directly. WickedP666 started this conversation in Build/Link/Run/Fonts issues ONLY! WickedP666. GetTexDataAsAlpha8 ()/GetTexDataAsRGBA32 ()/Build (). Dec 24, 2016 · On 24 Dec 2016, at 12:32, Victor Bombi ***@***. Nov 30, 2023 · For example, I have a dialog I create, in this case an SDL window, it loads all the fonts it needs, but I only want it to do that once at either application launch or the first time that SDL window is created with the ImGui context attached, instead of needing to reload all the font files necessary to have full UTF-8 support every time a new Dear ImGui is a bloat-free graphical user interface library for C++. cpp + imgui_impl_opengl3. 5) pixels or (0. f, NULL, io. ocornut closed this as completed on Jan 18, 2015. h (if updated, and I think freetype or at least a fork of it supports SDF generation as well) has support for single channel SDF bitmap generation. 5 or 0. The DirectX9 sample application sets it back to 0. 1; Use latest version of ImGui-SFML from master. Fonts->GetTexDataAsRGBA32(), it access an invalid memory location, thus causing the segfault. It clearly looks like the SDL_Renderer backend is rendering the fonts at half the size internally and upscaling by 2x, resulting in blurring and contrast loss. Jul 20, 2016 · First step is to generate shadows in your glyph atlas. 90. Assuming this is related somehow to clipping, while most of the window is offscreen, the font returns to looking normal. Font Outline. ImGui_ImplGlfwGL3_Init(self. When adding new fonts the old font isn't in the InputData yet so after the second atlas build the older fonts in the Fonts[] array aren't updated. ***> wrote: Hello Omar, If I use: imgui. 2k. #2909. This is just some kind of cruelty. I'm personally using Everything ( https://www. e. 80 when using multi-components widgets. Aug 20, 2021 · Using GDI to draw over a DXGI swap chain is a bad idea, it forces Windows to use a slower legacy presentation path for your app. The glyph atlas used in demos is 32-bit RGBA texture but only A has data in it. Examples should show how to take into account high-dpi screen resolutions imgui-rs/imgui Oct 3, 2023 · In addition, there are still some bugs: the earth is not rendered at the center of the scene, which is should be. Author. TexDesiredWidth = 8096; to manually set the texture width and then the height will be reduced and it may just work. brendanzab mentioned this issue on Apr 23, 2016. This is mainly because "Retained Mode" GUIs have been so widespread and predominant. Dec 6, 2022 · When ImGui-SFML later tried to call io. The caveat is that it only works with some engines (godot for example), and it turns out that it doesn't display properly at imgui. Feb 15, 2023 · For now even thought I appreciate the interested/need and sharing of code snippets, my priority will be to re-overhaul the system to not need those ranges. Oct 4, 2016 · However all the shaders that modify the texture alpha value, slightly modify the appearance of the unscaled text too, and of all the textures with (alpha!=0. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline enabled application. Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\msyh. ocornut mentioned this issue on Dec 13, 2017. Aug 24, 2016 · In CalcTextSize () we can replace lines such as const float char_width = ((int)c < IndexXAdvance. Dear ImGui is designed to enable fast iterations and to empower programmers to Aug 26, 2021 · ocornut commented on Aug 27, 2021. Fonts, [[C:\luaGL\ProggyTiny. 89. My Issue/Question: I am now updating the "HImGuiEditor" tool and need to add or modify fonts during rendering. igGetIO(). Flix01 closed this as completed on Oct 4, 2016. Seriously , I started to work with Imgui 2 months ago , and I didn not know there was such a metric debugger integrated 😆 I'm starting to understand the the the icon font was merged to a font that is not the default one,. SVG in Open Type is a standard by Adobe and Mozilla for color OpenType and Open Font Format fonts. GetIO (). voidtools. For example, GB2312 defines only 6763 very common characters, and you will never complete an article with any terminology using them. Experimental WebGPU renderer backend (courtesy of @bfierz ). Here you would have 2 font, first one is Verdana, second one Default+Icons, you'd need to use PushFont to select the later, have you done that? Oct 8, 2018 · There are issues with the custom font because of this DearImGui issue: ocornut/imgui#2127 and unfortunately the proposed mitigation will not work out of the box, because we do not provide all the required characters in our font. The Immediate Mode GUI paradigm may at first appear unusual to some users. One could use freetype or what not to generate high quality shadows but I chose to just edit the glyph atlas before submitting to GPU as texture. And ? Aug 8, 2023 · // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering. 👍 1 Demonese reacted with thumbs up emoji. resolutionScale which is for ImGui Windows Text, then there's A LOT of glitch on ImGui Windows Text. Other than the ImFontConfig struct and constructor, the only other change required was in ImFont::RenderText () unsigned int c = (unsigned int)*s & 0xff; We embed the font in source code so you can use Dear ImGui without any file system access. Fonts:AddFontFromFileTTF. I do that like Image Display Sample. Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies - Releases · ocornut/imgui Getting hovered states after Render () #7279. 👍 1 Chaojimengnan reacted with thumbs up emoji. Apr 2, 2023 · imgui. This is where I realize I erroneously made an assumption about this call, but looking at Sep 3, 2015 · BalazsJako commented Sep 3, 2015. exe File: C:\luaGL\gitsources\cimgui\imgui\imgui_draw Apr 8, 2018 · rSixDroid commented on Apr 8, 2018. For <4k resolutions and “small sizes” this is rather noticeable. 0) and is it a perfect value for the default font with the default sizes Mar 4, 2021 · Back-ends: imgui_impl_sdl. And there is deformation, and blurry (UNSOLVED, I raised another issue Correctly rendered opengl scene and model in default window not at the right size and position in a imgui window. h". // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! Fonts: ImFontConfig::OversampleH now defaults to 2 instead of 3, since the quality increase is largely minimal. Notifications Fork 9. Apr 2, 2015 · If you delete/replace fonts during the frame you need to immediately call SetFont () with the new font pointer else ImGui will have a dangling pointer (*). No branches or pull requests. From the description of the bitmap only font: LanaPixel_BitmapOnly. Mar 6, 2021 · But now I have many different fonts which I use via ImGui::PushFont() . It fails to create a texture and then dereferences it. Aug 10, 2014 · ocornut commented Aug 11, 2014 I have commited a fix, added a 'float PixelCenterOffset' value in ImGuiIO which default to 0. Requires: lunasvg v2. 5. Dear ImGui is one possible implementation of an idea generally described as the IMGUI (Immediate Mode GUI) paradigm. Fonts->AddFont**, io. md' for more instructions and details. Oct 27, 2023 · Also a lot of them involve rebuilding imgui's fonts, which seems a little weird, since assuming imgui is drawing fonts on textured quads my gut is that the quads can just be drawn bigger. Oct 29, 2023 · ocornut / imgui Public. Fonts-> AddFontFromFileTTF ( FONT_ICON_FILE_NAME_FAS, 16. 0, 1. At the moment the correct workaround would be to do: ocornut commented on Jul 4, 2017. 5,0. cpp + imgui_impl_OpenGl. ocornut added the font/text label on Oct 15, 2023. This is by far the smallest version of the font available, but many game Nov 23, 2020 · You signed in with another tab or window. ImFontAtlas_AddFontFromFileTTF(imgui. 5f (for OpenGL and DirectX 10+). Dec 23, 2019 · My icon font (which I use font merging for) is a little bit bigger than my regular font, so my log window looks like this: While it could look like this: (I temporarily made the icon font size 1 pixel smaller to get this result) (Colors are done in-line via my own extension, so that's all just a single TextUnformatted call. Nov 27, 2021 · Operating System: MacOS Monterey. h" #include "styles. 1 Back-ends: imgui_impl_opengl3. Using imgui_freetype can noticeably improve rendering and you can do this today. 0). Dec 5, 2022 · You signed in with another tab or window. If you have been using the files directly from the raw imgui repo (which your path suggests so), notice the fonts have moved into the misc/ folder. 2 and above. OTF files. Dear ImGui is about making things that are simple, efficient, and powerful. cpp line 4202: a reference of type ImGuiIO & cannot be initialized with a value of type ImGuiContext * I don't see what I'm missing/misunderstanding from the directions within the Context and Memory Allocators section in imgui. Please show an example with a video and some source code. First step being #3761 for 1. ocornut added a commit that referenced this issue Mar 3, 2021. However, when checked on a different platform, the font appears at the proper size. Screenshots/Video May 1, 2022 · The confusion came from these lines in the IconFontCppHeaders example, that do not mention the reduced glyph set of the regular version and then explicitly use the ICON_FA_PAINT_BRUSH character which it lacks: io. It allows font creators to embed complete SVG files within a font enabling full color and even animations. You may also load external . Fonts->AddFontDefault(); Aug 1, 2022 · Back-ends: imgui_impl_glfw. That sort of tool would help you verify the "the Version/Branch of Dear ImGui: Version 1. ImGuiContext& g = *ImGui::GetCurrentContext(); g. cpp Compiler: Cmake Operating System: Ubuntu 20. fonts[default] = font16p. Thanks :) Showed it. cpp: #include "includes. This guide will have us load an image file from disk and display it in a Dear ImGui window. I don't think there is a good straightforward solution: our model with prebuilding glyphs is flawed and problematic but we should fix it this year. This is essentially waiting for the same solution as #1671. Getting hovered states after Render () #7279. You can try using freetype + misc/imgui_freetype renderer for higher quality as this path will support font hinting. Fonts are rasterized in a single texture at the time of calling either of io. Not sure what's the righter way to fix it yet. When using the SDL_Renderer backend for SDL 2. // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering. They need to be different font,different size and display in the same time. ocornut added the optimization label Feb 23, 2023. I set it to true for the C64 font. cpp Compiler, OS: windows 11 Details: i need use dynamic loading character range to accelerate the font texture loading, for draw diff font text first, load font1 Dear ImGui is a bloat-free graphical user interface library for C++. Unfortunately when attempting to open my GUI nothing is drawn, even using something simple using the default font such as ImGui::Begin ("Debug");. The application allows for (an unlimited amount of) different text sections and each section can have a different font size. Is there a way to load the font before the first call to ImGui::New Frame? I will add that for non-GUI tasks, I use my sonoro1234 commented on Jul 21, 2018. static int selectedStyleIndex = 0; static int tabb = 0; static int styleee = 1; Apr 17, 2024 · About the IMGUI paradigm. Mar 10, 2020 · imgui::text("abcdefghijklmnopqrstuvwxyz"); I mean I need multi font like one for Title and another for dialog and one for other things. void Cheats::Menu () {. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline-enabled application. Perhaps we should tweak this section of the code in imgui_draw. I believe they fixed it with SFML/imgui-sfml@9c545ad. Will tackle it shortly. Requires enabling IMGUI_ENABLE_FREETYPE_LUNASVG along with IMGUI_ENABLE_FREETYPE , and providing headers/libraries for lunasvg. Jan 29, 2024 · Running in a thread doesn't make sense if the other thread needs the font data. So your path is invalid. You signed out in another tab or window. Development. This code is quite bottleneck (this is why there is a hot-dense IndexXAdvance [] array instead of poking in Glyphs). 04. All reactions ocornut added a commit that referenced this issue Sep 16, 2023 · This happens when I load two fonts into a combo font at once and then load those two fonts into another combo font again - at which point Imgui simply deletes the loaded fonts. Fixed a Tables bug in 1. 3. Popular fonts such as twemoji and fonts made with scfbuild is SVGinOT. btw, i just saw the table is almost empty : There's only a subset in the free font So I tried to reach an empty glyph . hpp". ImFontAtlas / ImFont are designed so you can create your own atlas aside from the "main" one if for some reason you want multiple textures. Initialization occurs in the first frame. TTF/. 0 && alpha!=1. Something like: style. I'm catching the rendered image and displaying it in another dialog, outside of // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering. Dec 7, 2020 · You signed in with another tab or window. Size) ? IndexXAdvance[(int)c] * scale : FallbackXAdvance; to handle missing glyphs according to font size. jpg, 20,123 bytes) This is generally done in two steps: Nov 15, 2021 · Introduction of the glitch: a. Both for generated and hard-coded parts of the ui! True horror! (:p) So I wanted to ask if I was missing something and if there is a war to change fonts of elements from stylesheet. Will implement that now. ig. Get latest FreeType binaries or build yourself (under Windows you may use vcpkg with vcpkg install freetype --triplet=x64-windows, vcpkg integrate install). Using an icon font (such as FontAwesome or OpenFontIcons) is an easy and practical way to use icons in your Dear ImGui application. // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! Oct 7, 2023 · The font icons are not working i will provide a image example using debugging. ImGui_ImplOpenGL3_CreateFontsTexture () (and perhaps also ig. I noticed I was getting a SIGTRAP upon exiting my app, the culprit: a default font embedded within the app, loaded with AddFontFromMemoryTTF (). Stack trace suggests IMGUI attempting to free the memory the font occupies. My Issue/Question: Hi! I am trying to set a custom font for my window titles (following the sample in this issue), and ran into a crash in the process. Hi folks, I have an off-screen GLFW window, used as an off-screen renderer. Code; Issues 866; Pull requests 146; I've also toyed around with higher quality font rendering (e. When I remove any reference to merging the fonts the GUI draws fine. cpp (or specify if using a custom engine/back-end) Compiler: vs2019_(if the question is related to building or platform specific features)_ Operating System: win10. sm ss oy jn cf sc dd kv zf is