cgltf
imgui
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cgltf
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Confused in terms of where to start with framework/technology etc. Need help picking between learning ShaderToy v/s OpenGL v/s WebGL
If you want to go all the way, https://learnopengl.com/ is a favorite around here. You could build a glTF viewer from scratch starting from that tutorial and https://github.com/jkuhlmann/cgltf and eventually building towards https://google.github.io/filament/Filament.html or whatever wacky artsy direction you like.
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Best courses for learning graphics programming?
Use https://github.com/jkuhlmann/cgltf to parse the files. https://github.com/ocornut/imgui for your UI. Maybe https://www.libsdl.org/ just to set up a window, handle mouse clicks and initialize the GL context in that window.
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I was learning OpenGL and, I needed a suggestion : Which are the best 3D model formats (In terms of ease of loading)
Use glTF and https://github.com/jkuhlmann/cgltf Or, looks like you are using C#, so https://github.com/vpenades/SharpGLTF
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What is the best FBX loader for modern OpenGL? (C++)
Do you really have to use fbx? An open format like gltf is better supported, and there are bazillions loaders(I use cgltf without any issues, which is also used by raylib, Unigine and bgfx). It's also a perfect fit for OpenGL.
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PortableGL: An implementation of OpenGL 3.x-ish in clean C
I recently discovered this pattern in cgltf (https://github.com/jkuhlmann/cgltf), and I agree, it makes deployment so much nicer.
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Good entry-level model format with animation
Use https://github.com/jkuhlmann/cgltf It’s the most popular loader.
- Any opensource lib for loading gitf files? Something lightweight if possible
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Is it worth writing a software raytracer before going into hardware accelerated RTX?
It's easy to generate a BVH for a generated triangle set (like a fractal pyramid or a dense cube). But, quickly generating a high quality BVH for a loaded model requires some research. Use https://github.com/jkuhlmann/cgltf to load models.
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How to become a tools/graphics/engine programmer
Write a simple glTF viewer in OpenGL. This is a throw-away warm-up. So, don't fret over the code. Don't do anything complicated. Shoot for a simple, forward renderer for a simple, animated character with trivial Phong lighting, diffuse map, normal map and a basic directional shadow map. Use OpenGL ES 3.0/GL 4.3 API with no crazy features. Don't worry about performance. Use https://github.com/jkuhlmann/cgltf to load the files. KTX is a great container for textures.
imgui
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Using raylib with Dear ImGui: Game Dev Debugging UI
include(cmake/CPM.cmake) function(raylib_imgui_setup_dependencies) message(STATUS "Include Dear ImGui") FetchContent_Declare( ImGui GIT_REPOSITORY https://github.com/ocornut/imgui GIT_TAG 277ae93c41314ba5f4c7444f37c4319cdf07e8cf) # v1.90.4 FetchContent_MakeAvailable(ImGui) FetchContent_GetProperties(ImGui SOURCE_DIR IMGUI_DIR) add_library( imgui STATIC ${imgui_SOURCE_DIR}/imgui.cpp ${imgui_SOURCE_DIR}/imgui_draw.cpp ${imgui_SOURCE_DIR}/imgui_widgets.cpp ${imgui_SOURCE_DIR}/imgui_tables.cpp) target_include_directories(imgui INTERFACE ${imgui_SOURCE_DIR}) include(cmake/CPM.cmake) message(STATUS "Include dbg-macro") cpmaddpackage( "gh:sharkdp/dbg-macro#fb9976f410f8b29105818b20278cd0be0e853fe8" )# v0.5.1 message(STATUS "Include fmtlib") cpmaddpackage("gh:fmtlib/fmt#e69e5f977d458f2650bb346dadf2ad30c5320281" )# 10.x message(STATUS "Include raylib") cpmaddpackage("gh:raysan5/raylib#ae50bfa2cc569c0f8d5bc4315d39db64005b1b0" )# v5.0 message(STATUS "Include spdlog") cpmaddpackage("gh:gabime/spdlog#7c02e204c92545f869e2f04edaab1f19fe8b19fd" )# v1.13.0 message(STATUS "Include rlImGui") FetchContent_Declare( rlImGui GIT_REPOSITORY https://github.com/raylib-extras/rlImGui GIT_TAG d765c1ef3d37cf939f88aaa272a59a2713d654c9) FetchContent_MakeAvailable(rlImGui) FetchContent_GetProperties(rlImGui SOURCE_DIR RLIMGUI_DIR) add_library(rlimgui STATIC ${rlimgui_SOURCE_DIR}/rlImgui.cpp) target_link_libraries(rlimgui PRIVATE imgui raylib) target_include_directories(rlimgui INTERFACE ${rlimgui_SOURCE_DIR}) endfunction()
- Ask HN: Fastest cross-platform GUI stack/strategy
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Immediate Mode GUI Programming
Immediate mode is a fuzzy concept, as witnessed by this writeup: https://github.com/ocornut/imgui/wiki/About-the-IMGUI-paradi...
- Nebula is an open-source and free-to-use modern C++ game engine
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Black Triangles
It's fun to see the evolution in e.g. these examples of image loading for Dear Imgui:
https://github.com/ocornut/imgui/wiki/Image-Loading-and-Disp...
DirectX9 will even load the image for you, DirectX11 okay we get a few more structures to fill out, DirectX12 is where it goes off the rails and we are filling out a bunch of UNKNOWN DONT_CARE JUST_DO_IT. Then of course Vulkan is the one that gets the big fat "this probably won't actually work for you" warning.
I understand whats happening, but you know sometimes I just want to display a fucking image.
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Dear ImGui: Bloat-free Graphical User interface with minimal dependencies
ImGui is engine/GPU agnostic
Themeing isn't a just a retained mode thing, you can do wonders with immediate UIs, even thought (dear)ImGui doesn't provide much, you can still do wonders: https://github.com/ocornut/imgui/issues/707#issuecomment-362...
More on that topic: https://www.youtube.com/watch?v=Z1qyvQsjK5Y
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Where do I start to learn C++ for a game development
Bonus: If you want to make desktop app with UI, then this is another great C++ library and it's also simple to learn as well. https://github.com/ocornut/imgui.
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GUI library for fast prototyping
AFAIK the Rust equivalent to C++'s Dear ImGui is egui.
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Stretching myself thin with Dear ImGui projects
They use a Dear ImGui, a C++ GUI library.
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PCSX2 Disables Wayland Support
Aside from bugs and driver issues, Wayland has some unfortunate design limitations. For example, Dear ImGui multi-viewports don't work because "Wayland doesn't let application read or write windows positions."
https://github.com/ocornut/imgui/wiki/Multi-Viewports
This is a feature available on Windows, macOS, and of course X11. Making choices like this means desktop Linux becomes even more of a weird island that nobody wants to support.
What are some alternatives?
tinygltf - Header only C++11 tiny glTF 2.0 library
wxWidgets - Cross-Platform C++ GUI Library
assimp - The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
nuklear - A single-header ANSI C immediate mode cross-platform GUI library
FBX2glTF - A command-line tool for the conversion of 3D model assets on the FBX file format to the glTF file format.
NanoGUI - Minimalistic GUI library for OpenGL
SharpGLTF - glTF reader and writer for .NET Standard
GTK+ - Read-only mirror of https://gitlab.gnome.org/GNOME/gtk
gdx-gltf - GLTF 2.0 3D format support and PBR shader implementation for LibGDX
egui - egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native
learn-wgpu - Guide for using gfx-rs's wgpu library.
CEGUI