WGPU sandbox: Spheres

Type

Spheres as meshes come in different flavours, each trying to approch the unit sphere but subdivision can't and shouldn't be infinite.
Each have their own pros and cons:

• Isophere (UV sphere): generated from polar coordinates, easy baked-in resolution, rough precision
• TODO: Dual Isophere (UV sphere)
• TODO: Octahedral Sphere + dual
• TODO: Tetrahedreal Sphere + dual
• TODO: Ico: generated from an catmull-clark subdivided icosahedron, better coverage, vertex count increase fast, pentagon nodes
• TODO: Dual Icosphere
• TODO: Quad: best coverage, easy to generate
• TODO: Dual Quad

Files

• main.rs: entry point as app
• lib.rs: main winit/wasm loop, window/user events
• state.rs: gpu init: surface, config device, queue; update, render, react to input
• pipeline.rs: configure the pipeline "state": pipeline, buffers, bind groups
• vertex.rs: vertex struct, vertex buffer layout, examples
• texture.rs: texture utils: load, texture buffer descriptor, view, sampler
• world.rs: world: container for entities such camera or models
• camera.rs: simple orbital camera logic
• sphere.rs: spheres generation code, properties, buffers
• shaders
• assets

Desktop app is built in target directory, web app is built in pkg.

Usage

Input

• W/S: forward/backward
• A/D: rotate left/right
• 1: diffuse
• 2: blin phong
• 3: difference to unit sphere
• 4: uv
• 5: normal
• 6: depth
• T: toggle wireframe (vulkan only)

Aim

• W/S: forward/backward
• A/D: strafe left/right
• Q/E: down / up
• 1: Isophere (UV)
• 2: Icosphere, Octahedral Sphere, Tetrahedreal Sphere
• 3: Quadsphere
• 5: Dual Isophere (UV)
• 6: Dual Icosphere
• 7: Dual Quadsphere
• Shift + 1: diffuse
• Shift + 2: blin phong
• Shift + 3: difference to unit sphere
• Shift + 4: normal
• Shift + 5: depth
• T: toggle wireframe (vulkan only)

Run on Dekstop

[RUST_LOG=<log_level>] cargo run

Run Web:

Compile wasm bindgen and pack wasm files: wasm-pack build --target web

Host a local server to serve files (browsing locally isn't compatible with CORS rules) python -m http.server -b 127.0.0.1

Tests?