GameDev, 3D, cross-platform, C++, Android, Windows, OpenGL ES 3.2. This blog turned out to a practically step-by-step guide how to write a cross-platform 3D app (game) from scratch. To write own game is my old dream. Now I know how to do it right. Have a few ideas in mind what it could be, haven't […]
A New Look at the Biblical Story of Creation Disclaimer: This is NOT a religious discussion. I'm not trying to question the Bible. I'm trying to question my personal perception of it. This is my attempt to understand and decipher the stories behind it, specifically here - the story of Creation. It is important to […]
An important step that is missing from all instructions: Before everything else: let's make sure, that app is releasable. At first I didn't do it myself, which I later regret more than once. Step 0. Release build. If you have working release build already, then just skip this step. Otherwise I assume, that everything you've […]
Finally, our project has reached a point where it can be shown as a standalone demo, in Microsoft Store for example. I didn't expect it to be easy, and it sure wasn't. I can't say that Microsoft's instructions I have used were "wrong" or "inaccurate", but sometimes they were SO complicated, not sequential and confusing […]
Contrary to my expectations, these 2 topics were not that complicated. So I decided that one article on them would be enough. Here's how it looks and sounds like: Sound Essentially, the topic came down to finding a suitable audio library/API. I've checked a few, including OpenSL, OpenAL, irrKlang, SFML, FMOD, PortAudio, SDL2, etc. Many […]
Now we'll try to implement game objects' reaction on our own manual input (mouse for instance). The main part is how to determine which game object the mouse is pointing at. We'll use the same approach as in previous chapter. Unlike in collision detection we'll calculate object's sizes/position not in world X-Z plane, but in […]
Collision detection is one of the most important parts of the game. Essentially, any game is a set of rules for the behavior/interaction of objects in the event of a collision. For example, a shell and a tank: when they meet, the shell disappears, the tank explodes, and so on. So how can you tell […]
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 […]
Cross-platform graphics engine, GameDev, 3D, C++, Android, Windows, OpenGL ES, Visual Studio, Android Studio 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 many shaders we […]
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 not just to different folder, but to different device. We can do that […]