https://github.com/jarred-sumner/transvoxel-data
Transvoxel tables for JavaScript
https://github.com/jarred-sumner/transvoxel-data
3d marching-cubes terrain-rendering transvoxel voxel
Last synced: 4 months ago
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Transvoxel tables for JavaScript
- Host: GitHub
- URL: https://github.com/jarred-sumner/transvoxel-data
- Owner: Jarred-Sumner
- Created: 2020-11-14T23:47:20.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2020-11-14T23:59:02.000Z (over 4 years ago)
- Last Synced: 2025-02-23T08:12:04.433Z (4 months ago)
- Topics: 3d, marching-cubes, terrain-rendering, transvoxel, voxel
- Language: JavaScript
- Homepage:
- Size: 103 KB
- Stars: 3
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Transvoxel tables for JavaScript
This is the data used for the [Transvoxel algorithm](https://transvoxel.org/) exposed as an npm package. All I did was take the `./Transvoxel.h` file and convert it into TypeScript.
The built package includes `esm`, `iife` and `commonjs` versions as well as type definitions.
The browser version defaults to `esm`, the Node version defaults to `commonjs`.
One performance consideration I haven't evaluated yet is whether it's better to make all of the data a single large `ArrayBuffer` instead of classes. One advantage lower level languages have that JavaScript doesn't make easy is structs and inlining. This is likely a case where you'd want to do that. But if its a problem in my usecase, I'll fix it here.
If you're running in a browser which doesn't support ESM, try using `transvoxel-iife.js`.
### Installation
yarn:
```bash
yarn add transvoxel-data
```
npm:
```bash
npm install transvoxel-data
```
### Usage
This doesn't implement the Transvoxel algorithm – just the data.
Here's most of what you can `import` or `require` from `transvoxel-data`:
```ts
export declare class CellData {
geometryCounts: number;
vertexIndex: number[] | Uint8Array;
vertexCount: number;
triangleCount: number;
constructor(geometryCounts: number, vertexIndex: Uint8Array);
static getVertexCount(geometryCounts: number): number;
static getTriangleCount(geometryCounts: number): number;
}
export declare class RegularCellData extends CellData {
vertexIndex: VertexIndexList;
}
export declare class TransitionCellData extends CellData {
vertexIndex: TransitionVertexIndexList;
}
export declare const regularCellClass: Uint8Array;
export declare const regularCellData: RegularCellData[];
export declare function getLocalIndexA(edgeCode: number): number;
export declare function getLocalIndexB(edgeCode: number): number;
export declare const regularVertexData: number[][];
export declare const transitionCellClass: number[];
export declare const transitionCornerData: number[];
export declare const transitionVertexData: number[][];
export {};
```