mostly working

This commit is contained in:
Evert Prants 2024-02-22 20:43:51 +02:00
parent b959cea254
commit c290a0e977
Signed by: evert
GPG Key ID: 1688DA83D222D0B5
7 changed files with 465 additions and 72 deletions

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@ -206,6 +206,7 @@ export class MsonEvaluate {
return { return {
type: 'mson:slot', type: 'mson:slot',
texture: evaluateChild.texture,
implementation: asSlot.implementation, implementation: asSlot.implementation,
data: evaluateChild._dataEvaluated, data: evaluateChild._dataEvaluated,
}; };

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@ -47,6 +47,7 @@ export type MsonComponentType =
export interface MsonBaseComponent { export interface MsonBaseComponent {
type?: MsonComponentType; type?: MsonComponentType;
implementation: string;
/** /**
* Whether or not this part is visible. You shouldn't have to use this in most circumstances. * Whether or not this part is visible. You shouldn't have to use this in most circumstances.
* @default true * @default true
@ -91,7 +92,7 @@ export interface MsonCompound extends MsonBaseComponent {
* Whether to flip this part's textures. * Whether to flip this part's textures.
* @default false * @default false
*/ */
mirror?: boolean | MsonVec3; mirror?: boolean | [boolean, boolean, boolean];
/** /**
* default type for components (if omitted): mson:box * default type for components (if omitted): mson:box
* allowed types: <mson:box|mson:cone|mson:link|mson:quads|mson:plane|mson:slot> * allowed types: <mson:box|mson:cone|mson:link|mson:quads|mson:plane|mson:slot>
@ -174,7 +175,6 @@ export interface MsonPlane extends MsonBaseComponent {
export interface MsonSlot extends MsonBaseComponent { export interface MsonSlot extends MsonBaseComponent {
type: 'mson:slot'; type: 'mson:slot';
implementation: string;
name: string; name: string;
data: MsonData | string; data: MsonData | string;
locals?: MsonLocals; locals?: MsonLocals;

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@ -1,8 +1,8 @@
import { resolve } from 'path'; import { resolve } from 'path';
import { ModelStore, MsonEvaluate } from '.'; import { ModelStore, MsonEvaluate } from '.';
import { fillStoreFromFilesystem, saveGeometry } from './util/node'; import { fillStoreFromFilesystem, saveGeometry, saveModel } from './util/node';
import { ThreeBuilder } from './three'; import { ThreeBuilder } from './three';
import { MeshBasicMaterial, MeshLambertMaterial } from 'three'; import { MeshLambertMaterial } from 'three';
async function init() { async function init() {
const store = new ModelStore(); const store = new ModelStore();
@ -16,12 +16,11 @@ async function init() {
// minelittlepony:steve_pony // minelittlepony:steve_pony
const final = evaluate.evaluateModel('minelittlepony:races/steve/alicorn'); const final = evaluate.evaluateModel('minelittlepony:races/steve/alicorn');
// console.log(final.texture); // console.log(final.texture);
console.dir(final._dataEvaluated, {
depth: 20,
});
const geometry = builder.buildGeometry(final); const geometry = builder.buildGeometry(final);
await saveGeometry(resolve(process.cwd(), 'outputs'), 'steve', geometry); const outputName = 'alicorn';
const outputs = resolve(process.cwd(), 'outputs');
await saveGeometry(outputs, outputName, geometry);
await saveModel(outputs, outputName, final);
} }
init().catch(console.error); init().catch(console.error);

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@ -1,6 +1,6 @@
import { import {
BoxGeometry, BoxGeometry,
Euler, CylinderGeometry,
Material, Material,
MathUtils, MathUtils,
Mesh, Mesh,
@ -13,26 +13,26 @@ import {
MsonBaseComponent, MsonBaseComponent,
MsonBox, MsonBox,
MsonComponent, MsonComponent,
MsonComponentType,
MsonCompound, MsonCompound,
MsonCompoundComponent, MsonCompoundComponent,
MsonData, MsonCone,
MsonEvaluatedModel, MsonEvaluatedModel,
MsonFace, MsonFace,
MsonFaces, MsonFaces,
MsonPlanar, MsonPlanar,
MsonPlanarPlane,
MsonPlanarXYZWHUVXY, MsonPlanarXYZWHUVXY,
MsonPlane, MsonPlane,
MsonSlot, MsonSlot,
MsonTexture,
Vec3, Vec3,
} from '../mson'; } from '../mson';
import { isArrayOfArrays } from '../util/array-of-array'; import { isArrayOfArrays } from '../util/array-of-array';
import { UVMapper } from './uv';
export class ThreeBuilder { export class ThreeBuilder {
static normals: Record<MsonFace, Vector3> = { static normals: Record<MsonFace, Vector3> = {
up: new Vector3(0, -1, 0), up: new Vector3(0, 1, 0),
down: new Vector3(0, 1, 0), down: new Vector3(0, -1, 0),
east: new Vector3(1, 0, 0), east: new Vector3(1, 0, 0),
west: new Vector3(-1, 0, 0), west: new Vector3(-1, 0, 0),
south: new Vector3(0, 0, 1), south: new Vector3(0, 0, 1),
@ -50,16 +50,16 @@ export class ThreeBuilder {
return new Vector3(pos.x + size.x / 2, pos.y, pos.z + size.y / 2); return new Vector3(pos.x + size.x / 2, pos.y, pos.z + size.y / 2);
}, },
east: function (pos: Vector3, size: Vector2): Vector3 { east: function (pos: Vector3, size: Vector2): Vector3 {
return new Vector3(pos.x, pos.y + size.y / 2, pos.z + size.x / 2); return new Vector3(pos.x, pos.y - size.y / 2, pos.z + size.x / 2);
}, },
west: function (pos: Vector3, size: Vector2): Vector3 { west: function (pos: Vector3, size: Vector2): Vector3 {
return new Vector3(pos.x, pos.y + size.y / 2, pos.z + size.x / 2); return new Vector3(pos.x, pos.y - size.y / 2, pos.z + size.x / 2);
}, },
south: function (pos: Vector3, size: Vector2): Vector3 { south: function (pos: Vector3, size: Vector2): Vector3 {
return new Vector3(pos.x + size.x / 2, pos.y + size.y / 2, pos.z); return new Vector3(pos.x + size.x / 2, pos.y - size.y / 2, pos.z);
}, },
north: function (pos: Vector3, size: Vector2): Vector3 { north: function (pos: Vector3, size: Vector2): Vector3 {
return new Vector3(pos.x + size.x / 2, pos.y + size.y / 2, pos.z); return new Vector3(pos.x + size.x / 2, pos.y - size.y / 2, pos.z);
}, },
}; };
@ -81,7 +81,7 @@ export class ThreeBuilder {
wrapper.name = model.name; wrapper.name = model.name;
for (const [name, component] of Object.entries(model._dataEvaluated)) { for (const [name, component] of Object.entries(model._dataEvaluated)) {
this.makeGeometry(name, component, wrapper); this.makeGeometry(name, component, wrapper, undefined, model.texture);
} }
return wrapper; return wrapper;
@ -98,47 +98,78 @@ export class ThreeBuilder {
component: MsonComponent, component: MsonComponent,
parent: Object3D, parent: Object3D,
parentComponent?: MsonComponent, parentComponent?: MsonComponent,
texture?: MsonTexture,
) { ) {
const wrapper = this.createWrapper( const wrapper = this.createWrapper(name, component);
name,
component.type || 'mson:compound',
component,
);
parent.add(wrapper); parent.add(wrapper);
// Compound objects // Compound objects
if (!component.type || component.type === 'mson:compound') { if (!component.type || component.type === 'mson:compound') {
this.makeMsonCompound( // mhm, go on ahead
name,
component as MsonCompound,
wrapper,
parentComponent,
);
} }
if (component.type === 'mson:slot') { if (
for (const [childName, child] of Object.entries(component.data)) { component.type === 'mson:slot' ||
this.makeGeometry(childName, child, wrapper, component); (!component.type && (component as unknown as MsonSlot).data)
) {
for (const [childName, child] of Object.entries(
(component as MsonSlot).data,
)) {
this.makeGeometry(childName, child, wrapper, component, {
...texture,
...component.texture,
...child.texture,
});
} }
} }
if (component.type === 'mson:planar') { if (component.type === 'mson:planar') {
this.makeMsonPlanar(name, component, wrapper, parentComponent); this.makeMsonPlanar(name, component, wrapper, parentComponent, {
...texture,
...component.texture,
});
} }
if (component.type === 'mson:plane') { if (component.type === 'mson:plane') {
this.makeMsonPlane(name, component, wrapper, parentComponent); this.makeMsonPlane(name, component, wrapper, parentComponent, {
...texture,
...component.texture,
});
}
if (component.type === 'mson:cone') {
this.makeMsonCone(name, component, wrapper, parentComponent, {
...texture,
...component.texture,
});
} }
(component as MsonCompound).cubes?.forEach( (component as MsonCompound).cubes?.forEach(
(part: MsonCompoundComponent) => { (part: MsonCompoundComponent) => {
if (!part.type || part.type === 'mson:box') { if (!part.type || part.type === 'mson:box') {
this.makeMsonBox(name, part as MsonBox, wrapper, component); this.makeMsonBox(name, part as MsonBox, wrapper, component, {
...texture,
...component.texture,
...part.texture,
});
return; return;
} }
if (part.type === 'mson:plane') { if (part.type === 'mson:plane') {
this.makeMsonPlane(name, part as MsonPlane, wrapper, component); this.makeMsonPlane(name, part as MsonPlane, wrapper, component, {
...texture,
...component.texture,
...part.texture,
});
return;
}
if (part.type === 'mson:cone') {
this.makeMsonCone(name, part as MsonCone, wrapper, component, {
...texture,
...component.texture,
...part.texture,
});
return; return;
} }
}, },
@ -146,23 +177,21 @@ export class ThreeBuilder {
if (component.children) { if (component.children) {
for (const [childName, child] of Object.entries(component.children)) { for (const [childName, child] of Object.entries(component.children)) {
this.makeGeometry(childName, child, wrapper, component); this.makeGeometry(childName, child, wrapper, component, {
...texture,
...component.texture,
...child.texture,
});
} }
} }
} }
protected makeMsonCompound(
name: string,
component: MsonCompound,
parent: Object3D,
parentComponent?: MsonComponent,
) {}
protected makeMsonBox( protected makeMsonBox(
name: string, name: string,
component: MsonBox, component: MsonBox,
parent: Object3D, parent: Object3D,
parentComponent?: MsonComponent, parentComponent?: MsonComponent,
texture?: MsonTexture,
) { ) {
const size = new Vector3().fromArray(component.size as Vec3); const size = new Vector3().fromArray(component.size as Vec3);
@ -188,7 +217,7 @@ export class ThreeBuilder {
); );
geometry.translate( geometry.translate(
adjustedTranslate.x, -adjustedTranslate.x,
adjustedTranslate.y - size.y, adjustedTranslate.y - size.y,
adjustedTranslate.z, adjustedTranslate.z,
); );
@ -197,7 +226,12 @@ export class ThreeBuilder {
(geometry as any).type = 'BufferGeometry'; (geometry as any).type = 'BufferGeometry';
delete (geometry as any).parameters; delete (geometry as any).parameters;
// TODO: apply UVs UVMapper.mapBoxUVs(
size,
geometry,
texture,
(parentComponent as MsonCompound)?.mirror,
);
const mesh = new Mesh(geometry, this.material); const mesh = new Mesh(geometry, this.material);
mesh.name = `${name}__mesh`; mesh.name = `${name}__mesh`;
@ -206,23 +240,72 @@ export class ThreeBuilder {
parent.add(mesh); parent.add(mesh);
} }
protected makeMsonCone(
name: string,
component: MsonCone,
parent: Object3D,
parentComponent?: MsonComponent,
texture?: MsonTexture,
) {
const size = new Vector3().fromArray(component.size as Vec3);
const dilate = new Vector3();
if (component.dilate) {
if (Array.isArray(component.dilate)) dilate.fromArray(component.dilate);
else
dilate.set(
component.dilate as number,
component.dilate as number,
component.dilate as number,
);
}
const offset = new Vector3().fromArray(component.from as Vec3);
const halfSize = size.clone().divideScalar(2);
offset.setY(offset.y * -1);
const adjustedTranslate = halfSize.clone().add(offset);
const adjustedSize = size.x * (component.taper as number) ?? 1;
let geometry = new CylinderGeometry(
(adjustedSize + dilate.x) / Math.sqrt(2),
(size.x + dilate.x) / Math.sqrt(2),
size.y + dilate.y,
4,
1,
);
geometry.rotateY(Math.PI / 4);
geometry.translate(
-adjustedTranslate.x,
adjustedTranslate.y - size.y,
adjustedTranslate.z,
);
geometry = geometry.toNonIndexed() as CylinderGeometry;
geometry.computeVertexNormals();
// FIXME: hack toJSON
(geometry as any).type = 'BufferGeometry';
delete (geometry as any).parameters;
const mesh = new Mesh(geometry, this.material);
mesh.name = `${name}__cone`;
mesh.updateMatrix();
parent.add(mesh);
}
protected makeMsonPlaneFace( protected makeMsonPlaneFace(
face: MsonFace, face: MsonFace,
parent: Object3D, parent: Object3D,
pos: Vector3, pos: Vector3,
size: Vector2, size: Vector2,
uv: Vector2, texture?: MsonTexture,
mirror?: boolean | [boolean, boolean], mirror?: boolean | [boolean, boolean],
invertY = false,
) { ) {
const planeGeom = new PlaneGeometry(size.x, size.y); const planeGeom = new PlaneGeometry(size.x, size.y);
let axisNormal = ThreeBuilder.normals[face]; let axisNormal = ThreeBuilder.normals[face];
if (invertY) {
axisNormal = axisNormal.clone().setY(axisNormal.y * -1);
pos.setY(pos.y * -1); pos.setY(pos.y * -1);
if (['east', 'west', 'south', 'north'].includes(face))
size.setY(size.y * -1);
}
const adjustedTranslate = ThreeBuilder.pocConvert[face](pos, size); const adjustedTranslate = ThreeBuilder.pocConvert[face](pos, size);
planeGeom.lookAt(axisNormal); planeGeom.lookAt(axisNormal);
planeGeom.translate( planeGeom.translate(
@ -231,12 +314,12 @@ export class ThreeBuilder {
adjustedTranslate.z, adjustedTranslate.z,
); );
// TODO: apply UVs
// FIXME: hack toJSON // FIXME: hack toJSON
(planeGeom as any).type = 'BufferGeometry'; (planeGeom as any).type = 'BufferGeometry';
delete (planeGeom as any).parameters; delete (planeGeom as any).parameters;
UVMapper.mapPlanarUvs(face, size, planeGeom, texture, mirror);
const mesh = new Mesh(planeGeom, this.material); const mesh = new Mesh(planeGeom, this.material);
// mesh.position.copy(pos); // mesh.position.copy(pos);
mesh.name = face; mesh.name = face;
@ -248,10 +331,12 @@ export class ThreeBuilder {
component: MsonPlanar, component: MsonPlanar,
parent: Object3D, parent: Object3D,
parentComponent?: MsonComponent, parentComponent?: MsonComponent,
texture?: MsonTexture,
) { ) {
const wrapper = new Object3D(); const wrapper = new Object3D();
wrapper.name = name; wrapper.name = name;
wrapper.userData.type = component.type; wrapper.userData.type = component.type;
wrapper.userData.implementation = component.implementation;
parent.add(wrapper); parent.add(wrapper);
for (const face of MsonFaces) { for (const face of MsonFaces) {
@ -266,7 +351,6 @@ export class ThreeBuilder {
let mirror: [boolean, boolean] = [false, false]; let mirror: [boolean, boolean] = [false, false];
planePos.fromArray(faceinfo as number[]); planePos.fromArray(faceinfo as number[]);
// planePos.setY(planePos.y * -1);
size.fromArray(faceinfo as number[], 3); size.fromArray(faceinfo as number[], 3);
if (faceinfo.length > 5) { if (faceinfo.length > 5) {
@ -276,7 +360,20 @@ export class ThreeBuilder {
if (faceinfo.length > 7) { if (faceinfo.length > 7) {
mirror = [faceinfo[7] as boolean, faceinfo[8] as boolean]; mirror = [faceinfo[7] as boolean, faceinfo[8] as boolean];
} }
this.makeMsonPlaneFace(face, wrapper, planePos, size, uv, mirror, true); this.makeMsonPlaneFace(
face,
wrapper,
planePos,
size,
faceinfo.length > 5
? {
...texture,
u: uv.x,
v: uv.y,
}
: texture,
mirror,
);
} }
} }
wrapper.updateMatrix(); wrapper.updateMatrix();
@ -287,44 +384,39 @@ export class ThreeBuilder {
component: MsonPlane, component: MsonPlane,
parent: Object3D, parent: Object3D,
parentComponent?: MsonComponent, parentComponent?: MsonComponent,
texture?: MsonTexture,
) { ) {
const wrapper = new Object3D(); const wrapper = new Object3D();
wrapper.name = name; wrapper.name = name;
wrapper.userData.type = component.type; wrapper.userData.type = component.type;
wrapper.userData.implementation = component.implementation;
parent.add(wrapper); parent.add(wrapper);
const planePos = new Vector3(); const planePos = new Vector3();
const size = new Vector2(); const size = new Vector2();
const uv = new Vector2();
let mirror: [boolean, boolean] = [false, false]; let mirror: [boolean, boolean] = [false, false];
if (component.position) planePos.fromArray(component.position as number[]); if (component.position) planePos.fromArray(component.position as number[]);
if (component.size) size.fromArray(component.size as number[]); if (component.size) size.fromArray(component.size as number[]);
uv.set(component.texture?.u ?? 0, component.texture?.v ?? 0);
if (component.mirror) mirror = component.mirror; if (component.mirror) mirror = component.mirror;
this.makeMsonPlaneFace( this.makeMsonPlaneFace(
component.face as MsonFace, component.face as MsonFace,
wrapper, wrapper,
planePos, planePos,
size, size,
uv, texture,
mirror, mirror,
true,
); );
} }
protected createWrapper( protected createWrapper(name: string, component: MsonBaseComponent) {
name: string,
typeName: string,
component: MsonBaseComponent,
) {
let wrapper = new Object3D(); let wrapper = new Object3D();
wrapper.name = name; wrapper.name = name;
wrapper.userData.type = typeName; wrapper.userData.type = component.type || 'mson:component';
wrapper.visible = component.visible ?? true; wrapper.visible = component.visible ?? true;
wrapper.userData.implementation = component.implementation;
const rotate = new Vector3(); const rotate = new Vector3();
if (component?.rotate) { if (component?.rotate) {

276
src/three/uv.ts Normal file
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@ -0,0 +1,276 @@
import {
BoxGeometry,
BufferAttribute,
PlaneGeometry,
Vector2,
Vector3,
Vector4,
} from 'three';
import { MsonFace, MsonTexture } from '../mson';
import { convertRange } from '../util/num-range';
export class UVMapper {
// px nx py ny pz nz
static boxFaceOrder = ['west', 'east', 'up', 'down', 'north', 'south'];
static boxWidthSide: Record<string, 'x' | 'y' | 'z'> = {
east: 'z',
west: 'z',
up: 'x',
down: 'x',
south: 'x',
north: 'x',
};
static boxHeightSide: Record<string, 'x' | 'y' | 'z'> = {
east: 'y',
west: 'y',
up: 'z',
down: 'z',
south: 'y',
north: 'y',
};
static planeWidthSide: Record<string, 'x' | 'y'> = {
east: 'x',
west: 'x',
up: 'x',
down: 'x',
south: 'x',
north: 'x',
};
static planeHeightSide: Record<string, 'x' | 'y'> = {
east: 'y',
west: 'y',
up: 'y',
down: 'y',
south: 'y',
north: 'y',
};
/**
* @param sizeU Size of quad U
* @param sizeV Size of quad V
* @param txU Texture width
* @param txV Texture height
* @param setU Specified U offset
* @param setV Specified V offset
* @param invertU Invert U axis
* @param invertV Invert V axis
*/
static uvOffsetConvert(
sizeU: number,
sizeV: number,
txU: number,
txV: number,
setU: number = 0,
setV: number = 0,
invertU = false,
invertV = false,
) {
/*
* UV coordinate system
* 0,1 1,1
* V
* |
* |
* |
* |
* +-----------U
* 0,0 1,0
*/
/*
* txU equivalent to 1
* txV equivalent to 1
*
* 0 txU
* 0 -------------------- 1
* | |
* setU +sizeU
* u1 u2
*/
const uStart = convertRange(setU, [0, txU], [0, 1]);
const uEnd = convertRange(setU + sizeU, [0, txU], [0, 1]);
const vStart = 1 - convertRange(setV, [0, txV], [0, 1]);
const vEnd = 1 - convertRange(setV + sizeV, [0, txV], [0, 1]);
return new Vector4(
invertU ? uEnd : uStart,
invertU ? uStart : uEnd,
invertV ? vEnd : vStart,
invertV ? vStart : vEnd,
);
}
static unwrapBox(size: Vector3) {
const widths = UVMapper.boxFaceOrder.map(
(item) => size[UVMapper.boxWidthSide[item]],
);
const heights = UVMapper.boxFaceOrder.map(
(item) => size[UVMapper.boxHeightSide[item]],
);
const layout: any = {
up: { x: 'west', y: 0 },
down: { x: 'up', y: 0 },
west: { x: 0, y: 'up' },
south: { x: 'west', y: 'up' },
east: { x: 'south', y: 'down' },
north: { x: 'east', y: 'down' },
};
Object.keys(layout).forEach((key) => {
const entry = layout[key];
if (typeof entry.x === 'string') {
const prev = layout[entry.x];
entry.x = prev.x + widths[UVMapper.boxFaceOrder.indexOf(entry.x)];
}
if (typeof entry.y === 'string') {
const prev = layout[entry.y];
entry.y = prev.y + heights[UVMapper.boxFaceOrder.indexOf(entry.y)];
}
});
return layout;
}
static mapBoxUVs(
size: Vector3,
geometry: BoxGeometry,
texture?: MsonTexture,
mirror?: boolean | [boolean, boolean, boolean],
) {
const uvAttribute = geometry.getAttribute('uv') as BufferAttribute;
const index = geometry.getIndex() as BufferAttribute;
const uv = new Vector2();
const layout = UVMapper.unwrapBox(size);
let textureWidth = texture?.w ?? 64;
let textureHeight = texture?.h ?? 64;
let textureOffsetU = texture?.u ?? 0;
let textureOffsetV = texture?.v ?? 0;
const invU: string[] = ['up'];
const invV: string[] = ['up'];
const mirroring =
mirror !== undefined
? Array.isArray(mirror)
? mirror
: [mirror, mirror, mirror]
: [false, false, false];
// TODO: figure out what rest of the components mirror
const [flipX, flipY, flipZ] = mirroring;
if (flipX) {
invU.push('south', 'north');
}
// px nx py ny pz nz
// clockwise count
for (let i = 0; i < index!.count; i += 3) {
const faceName = UVMapper.boxFaceOrder[Math.floor(i / 6)];
const triIndex = Math.ceil((i / 6) % 1);
const sizeU = size[UVMapper.boxWidthSide[faceName]];
const sizeV = size[UVMapper.boxHeightSide[faceName]];
const addVOffset = layout[faceName].y;
const addUOffset = layout[faceName].x;
let finalU = textureOffsetU + addUOffset;
let finalV = textureOffsetV + addVOffset;
const faceCoords = UVMapper.uvOffsetConvert(
sizeU,
sizeV,
textureWidth,
textureHeight,
finalU,
finalV,
invU.includes(faceName),
invV.includes(faceName),
);
for (let attrib = 0; attrib < 3; attrib++) {
const a = index?.getX(i + attrib);
uv.fromBufferAttribute(uvAttribute, a);
// -> bottom left, top left, bottom right
if (triIndex === 0) {
if (attrib === 0) uv.set(faceCoords.x, faceCoords.z);
if (attrib === 1) uv.set(faceCoords.x, faceCoords.w);
if (attrib === 2) uv.set(faceCoords.y, faceCoords.z);
}
// -> top left, top right, bottom right
if (triIndex === 1) {
if (attrib === 0) uv.set(faceCoords.x, faceCoords.w);
if (attrib === 1) uv.set(faceCoords.y, faceCoords.w);
if (attrib === 2) uv.set(faceCoords.y, faceCoords.z);
}
uvAttribute.setXY(a, uv.x, uv.y);
}
}
}
static mapPlanarUvs(
face: MsonFace,
size: Vector2,
geometry: PlaneGeometry,
texture?: MsonTexture,
mirror?: boolean | [boolean, boolean],
) {
const uvAttribute = geometry.getAttribute('uv') as BufferAttribute;
const index = geometry.getIndex() as BufferAttribute;
const uv = new Vector2();
let textureWidth = texture?.w ?? 64;
let textureHeight = texture?.h ?? 64;
let textureOffsetU = texture?.u ?? 0;
let textureOffsetV = texture?.v ?? 0;
const mirroring =
mirror !== undefined
? Array.isArray(mirror)
? mirror
: [mirror, mirror]
: [false, false];
for (let i = 0; i < index!.count; i += 3) {
const triIndex = Math.ceil((i / 6) % 1);
const sizeU = size[UVMapper.planeWidthSide[face]];
const sizeV = size[UVMapper.planeHeightSide[face]];
let finalU = textureOffsetU;
let finalV = textureOffsetV;
const faceCoords = UVMapper.uvOffsetConvert(
sizeU,
sizeV,
textureWidth,
textureHeight,
finalU,
finalV,
!mirroring[0],
mirroring[1],
);
for (let attrib = 0; attrib < 3; attrib++) {
const a = index?.getX(i + attrib);
uv.fromBufferAttribute(uvAttribute, a);
// -> bottom left, top left, bottom right
if (triIndex === 0) {
if (attrib === 0) uv.set(faceCoords.x, faceCoords.z);
if (attrib === 1) uv.set(faceCoords.x, faceCoords.w);
if (attrib === 2) uv.set(faceCoords.y, faceCoords.z);
}
// -> top left, top right, bottom right
if (triIndex === 1) {
if (attrib === 0) uv.set(faceCoords.x, faceCoords.w);
if (attrib === 1) uv.set(faceCoords.y, faceCoords.w);
if (attrib === 2) uv.set(faceCoords.y, faceCoords.z);
}
uvAttribute.setXY(a, uv.x, uv.y);
}
}
}
}

View File

@ -1,4 +1,4 @@
import { ModelStore } from '../mson'; import { ModelStore, MsonEvaluatedModel } from '../mson';
import { promises as fs } from 'node:fs'; import { promises as fs } from 'node:fs';
import { join } from 'node:path'; import { join } from 'node:path';
import { Object3D } from 'three'; import { Object3D } from 'three';
@ -54,3 +54,21 @@ export const saveGeometry = async (
join(root, `${name}.json`), join(root, `${name}.json`),
JSON.stringify(object.toJSON()), JSON.stringify(object.toJSON()),
); );
export const saveModel = async (
root: string,
name: string,
data: MsonEvaluatedModel,
) =>
await fs.writeFile(
join(root, `${name}.mson.json`),
JSON.stringify(
{
texture: data.texture,
locals: data._localsEvaluated,
data: data._dataEvaluated,
},
undefined,
2,
),
);

7
src/util/num-range.ts Normal file
View File

@ -0,0 +1,7 @@
export function convertRange(
value: number,
r1: [number, number],
r2: [number, number],
) {
return ((value - r1[0]) * (r2[1] - r2[0])) / (r1[1] - r1[0]) + r2[0];
}