Purpl Engine

This is a game engine I'm making.

Build instructions

Use Cargo.

Build requirements

Install Rust nightly and its dependencies.

System requirements

You need a GPU driver with support for Vulkan 1.3.

Interesting stuff I guess

This is a Rust rewrite of my C engine.

The engine is/will be made of these components:

• platform - Platform abstraction, handles OS functions, also handles "video" (another Quake 2 idea sort of), through functions that hide most details about the underlying window and such.
• engine - Currently contains a camera structure and function, a transform structure, and some ECS stuff.
• rendersystem (engine/rendersystem) - API-independant frontend for rendering, also inspired a bit by Quake 2.
• rendersystem-vk (engine/rendersystem/vulkan) - Vulkan render backend, probably most of the code.
• rendersystem-dx (engine/rendersystem/directx) - DirectX 12 backend, planned but currently empty.
• texture (util/texture) - Texture format library. No compression, basically a header and pixels in RGB, RGBA, or depth (32-bit float) formats.
• texturetool (util/texture) - Converts to and from the texture format. Similar tools will exist for other formats.
• model (util/model) - Model format library. Extremely primitive, like the texture format.

I suck at optimization, but I'm also trying to avoid worrying about it until it's an issue.

I heard that Doom Eternal uses thread jobs for everything so I hope to figure out how to do something like that.

Things that need to be changed eventually

• Make video backends more idiomatic by using nested functions or whatever the Rust way is
• Make my own formats instead of using OBJ and PNG

Dependencies

See Cargo.toml