molstar
Version:
A comprehensive macromolecular library.
64 lines (63 loc) • 2.85 kB
JavaScript
/**
* Copyright (c) 2021-2022 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
import { ValueCell } from '../../mol-util/value-cell';
import { Vec2, Vec3, Vec4 } from '../../mol-math/linear-algebra';
import { createTextureImage } from '../../mol-gl/renderable/util';
import { createNullTexture } from '../../mol-gl/webgl/texture';
import { Material } from '../../mol-util/material';
export function applySubstanceMaterial(array, start, end, material) {
for (let i = start; i < end; ++i) {
Material.toArray(material, array, i * 4);
array[i * 4 + 3] = 255;
}
return true;
}
export function clearSubstance(array, start, end) {
array.fill(0, start * 4, end * 4);
return true;
}
export function createSubstance(count, type, substanceData) {
const substance = createTextureImage(Math.max(1, count), 4, Uint8Array, substanceData && substanceData.tSubstance.ref.value.array);
if (substanceData) {
ValueCell.update(substanceData.tSubstance, substance);
ValueCell.update(substanceData.uSubstanceTexDim, Vec2.create(substance.width, substance.height));
ValueCell.updateIfChanged(substanceData.dSubstance, count > 0);
ValueCell.updateIfChanged(substanceData.dSubstanceType, type);
return substanceData;
}
else {
return {
tSubstance: ValueCell.create(substance),
uSubstanceTexDim: ValueCell.create(Vec2.create(substance.width, substance.height)),
dSubstance: ValueCell.create(count > 0),
tSubstanceGrid: ValueCell.create(createNullTexture()),
uSubstanceGridDim: ValueCell.create(Vec3.create(1, 1, 1)),
uSubstanceGridTransform: ValueCell.create(Vec4.create(0, 0, 0, 1)),
dSubstanceType: ValueCell.create(type),
uSubstanceStrength: ValueCell.create(1),
};
}
}
const emptySubstanceTexture = { array: new Uint8Array(4), width: 1, height: 1 };
export function createEmptySubstance(substanceData) {
if (substanceData) {
ValueCell.update(substanceData.tSubstance, emptySubstanceTexture);
ValueCell.update(substanceData.uSubstanceTexDim, Vec2.create(1, 1));
return substanceData;
}
else {
return {
tSubstance: ValueCell.create(emptySubstanceTexture),
uSubstanceTexDim: ValueCell.create(Vec2.create(1, 1)),
dSubstance: ValueCell.create(false),
tSubstanceGrid: ValueCell.create(createNullTexture()),
uSubstanceGridDim: ValueCell.create(Vec3.create(1, 1, 1)),
uSubstanceGridTransform: ValueCell.create(Vec4.create(0, 0, 0, 1)),
dSubstanceType: ValueCell.create('groupInstance'),
uSubstanceStrength: ValueCell.create(1),
};
}
}