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change fakeTerrain to skipTerrain and do proper implementation. better alpha handling for 2d image conversions

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This commit is contained in:
Stewart Allen 2020-12-06 15:58:28 -05:00
commit f8ce55b7f0
3 changed files with 23 additions and 21 deletions
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18
src/mode/cam/slice.js
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@ -168,11 +168,12 @@
let tslices = [];
let tshadow = [];
let tzindex = slicer.interval(minStepDown, { fit: true, off: 0.01, down: true, flats: true });
let fakeTerrain = false;
// if (tzindex.length > 200) {
// fakeTerrain = tzindex[0];
// tzindex = [ tzindex.pop() ];
// }
let skipTerrain = !(procRough || procOutline) && tzindex.length > 50;
if (skipTerrain) {
console.log("skipping terrain generation for speed");
tzindex = [ tzindex.pop() ];
}
let terrain = slicer.slice(tzindex, { each: (data, index, total) => {
tshadow = POLY.union(tshadow.slice().appendAll(data.tops), 0.01, true);
@ -186,11 +187,6 @@
}
updateOp(index, total);
}, genso: true });
if (fakeTerrain) {
// to avoid compute for highly detailed maps, force all
// moves above part top by synthesizing a single terrain slice
terrain[0].z = fakeTerrain.z;
}
let shadowTop = terrain[terrain.length - 1];
let center = tshadow[0].bounds.center();
@ -572,7 +568,7 @@
// dslice.output().setLayer("shadowOff", { line: 0xff0000 }).addPolys(shadowOff);
// sliceAll.push(dslice);
widget.terrain = terrain;
widget.terrain = skipTerrain ? null : terrain;
widget.minToolDiam = minToolDiam;
widget.maxToolDiam = maxToolDiam;