Wanted to call this chapter “Game Concept” or “Game Scenario”, but that would be too premature. There is no clear concept or script in my head yet. Although the visual concept and general direction are more or less settled down. When thinking about a future game, it’s important to decide not only what you WANT […]
We now have a graphics engine capable of generating and displaying 3D models. However, it uses its own model format (XML files). Of course, it would be great to use other (standard) 3D formats as well, that can be downloaded from the Internet. After some research I settled on GLTF/GLB (GL Transfer Format, GLB is […]
Tags: Graphics Engine Architecture, Procedural Modeling, Renderer vs Modeler, C++, OpenGL ES 3.2, Low-Level Graphics, 3D Demos Well, it’s a big topic. I’d even say HUGE. Here we’ll need to decide how to build and render our scene/models, where we’ll get our 3D models from, how we’ll load, unpack and control them, which and how […]
Tags: Android NDK, Asset Manager, JNI, File I/O, Gradle, APK Timestamp, Cross-Platform Consistency The idea is the same as in previous chapter – to place the data files within the reach of the executable. However, in Android’s case we are dealing NOT with the “executable”, but with APK. Besides, we have to deliver data files […]
Tags: Visual Studio, File I/O, Resource Management, Win32 API, Build Events, C++, Data-Driven Design Now, having a cross-platform solution, we can start thinking about our Graphics Engine. However, the first question will be not about graphics, but how we gonna handle data files (like shaders, models, textures and so on)? For example, currently our triangle […]
Tags: Cross-Platform Success, Android NDK, CMake, OpenGL ES 3.2, C++ Core, Mobile & Desktop, Software Architecture Now we will try to run TheApp spinning triangle sample on Android. For this we’ll need: Didn’t find how to add classes/files outside of cpp folder in Android Studio, so let’s do it manually. 1. In Windows File Explorer […]
Tags: OpenGL, OpenGL ES 3.2, 3D Graphics, Coordinate Systems, Right-Handed System, Geometry, Game Engine Development, C++ For 3D modeling, this is actually a non-trivial question. When we talk about humans, our natural assumption is that “right” is relative to the back, not the front. For example, what is to the right of your face is […]
Tags: Software Architecture, C++ Classes, Cross-Platform Design, Code Decoupling, Platform Abstraction, Reusable Core In the previous 2 chapters, we have successfully “married” Android and C++, Windows and OpenGL ES. Now, having 2 C++/GLES projects for 2 different platforms, let’s see what is common and what is not. The difference actually looks frightening, seems like nothing […]
How to download repository from GitHub 1. Open provided GitHub repository link, for example (like in chapter 3) https://github.com/bkantemir/_wg_403 2. Click green button “Code”. 3. I usually use “Download ZIP”. 4. When downloaded, go to your Downloads folder and unpack downloaded zip file to your hard drive (usually C:). 5. Since in my case all […]
Tags: Visual Studio, OpenGL ES 3.2 on Desktop, GLFW, GLAD, Win32, C++, Cross-Platform Foundation Using OpenGL ES on the PC is less straight forward than on Android. The reason is that GL ES is intended for mobile devices, NOT for desktops. Fortunately, solutions exist. OpenGL producers strongly advise to use a window toolkit (GLFW) and […]