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@polygonjs/polygonjs

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node-based WebGL 3D engine https://polygonjs.com

polygonjs.com

polygonjs/polygonjs

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// import {Vector3, Data3DTexture} from 'three'; // import {NamedFunction7} from './_Base'; // import {_SDFBox} from './_SDFPrimitives'; // const _boundCenter = new Vector3(); // const _boundSize = new Vector3(); // const _posNormalized = new Vector3(); // const _SDFBoxP = new Vector3(); // export function _textureDist(texture: Data3DTexture, posNormalized: Vector3): number { // // console.log(texture); // // if (!texture) { // // return 0; // // } // // return 0; // const data = texture.source.data; // const x = Math.floor(posNormalized.x * data.width); // const y = Math.floor(posNormalized.y * data.height); // const z = Math.floor(posNormalized.z * data.depth); // // const index = x + y * data.width + z * data.width * data.height; // const index = x + y * data.width + z * data.width * data.height; // const dist = data.data[index]; // // console.log(texture, data, index, dist); // return dist; // } // export function _SDFTexture( // texture: Data3DTexture | null, // p: Vector3, // center: Vector3, // boundMin: Vector3, // boundMax: Vector3, // padding: Vector3, // bias: number // ): number { // if (!texture) { // return p.x; // } // _boundCenter.copy(boundMin).add(boundMax).multiplyScalar(0.5); // _boundSize.copy(boundMax).sub(boundMin); // // get SDFBox dist // _SDFBoxP.copy(p); //.sub(_boundCenter); // const SDFBoxDist: number = _SDFBox(_SDFBoxP, _boundCenter, _boundSize.multiply(padding), 1); // // return SDFBox dist if we are outside, texture value otherwise // _posNormalized.copy(p).sub(center).sub(boundMin).divide(_boundSize); // return SDFBoxDist < bias ? _textureDist(texture, _posNormalized) : SDFBoxDist; // } // export class SDFTexture extends NamedFunction7< // [Data3DTexture | null, Vector3, Vector3, Vector3, Vector3, Vector3, number] // > { // static override type() { // return 'SDFTexture'; // } // func = _SDFTexture; // } // // vec3 v_POLY_textureSDF1_boundCenter = (v_POLY_textureSDF1BoundMax_val + v_POLY_textureSDF1BoundMin_val)*0.5; // // vec3 v_POLY_textureSDF1_boundSize = (v_POLY_textureSDF1BoundMax_val - v_POLY_textureSDF1BoundMin_val); // // vec3 v_POLY_textureSDF1_positionNormalised = ((p - v_POLY_textureSDF1BoundMin_val) / v_POLY_textureSDF1_boundSize); // // float v_POLY_textureSDF1_sdBox = sdBox(p-v_POLY_textureSDF1_boundCenter, v_POLY_textureSDF1_boundSize*vec3(1.0, 1.0, 1.0)); // // float v_POLY_textureSDF1_d = v_POLY_textureSDF1_sdBox < 0.01 ? texture(v_POLY_textureSDF_textureSDF1, v_POLY_textureSDF1_positionNormalised - vec3(0.0, 0.0, 0.0)).r : v_POLY_textureSDF1_sdBox;