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Flatten occlusion data

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Lucas Dower 2022-03-30 19:21:45 +01:00
parent d403151f31
commit 14b9da61da
1 changed files with 8 additions and 5 deletions
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13
src/occlusion.ts
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@ -65,6 +65,7 @@ export class Occlusion {
*/ */
import { AppConfig } from './config'; import { AppConfig } from './config';
import { ASSERT } from './util';
import { Vector3 } from './vector'; import { Vector3 } from './vector';
import { VoxelMesh } from './voxel_mesh'; import { VoxelMesh } from './voxel_mesh';
@ -104,10 +105,11 @@ export class OcclusionManager {
} }
} }
const occlusions = new Array<Array<number>>(6); // const occlusions = new Array<Array<number>>(6);
const occlusions = new Array<number>(6 * 4).fill(1.0);
// For each face // For each face
for (let f = 0; f < 6; ++f) { for (let f = 0; f < 6; ++f) {
occlusions[f] = [1, 1, 1, 1]; // occlusions[f] = [1, 1, 1, 1];
// Only compute ambient occlusion if this face is visible // Only compute ambient occlusion if this face is visible
const faceNormal = this.getFaceNormals()[f]; const faceNormal = this.getFaceNormals()[f];
@ -133,7 +135,7 @@ export class OcclusionManager {
// Convert from occlusion denoting the occlusion factor to the // Convert from occlusion denoting the occlusion factor to the
// attenuation in light value: 0 -> 1.0, 1 -> 0.8, 2 -> 0.6, 3 -> 0.4 // attenuation in light value: 0 -> 1.0, 1 -> 0.8, 2 -> 0.6, 3 -> 0.4
occlusions[f][v] = 1.0 - 0.2 * numNeighbours; occlusions[f * 4 + v] = 1.0 - 0.2 * numNeighbours;
} }
} }
} }
@ -217,13 +219,14 @@ export class OcclusionManager {
} }
} }
private _expandOcclusions(occlusions: number[][]) { private _expandOcclusions(occlusions: number[]) {
const expandedOcclusions = new Array<number>(96); const expandedOcclusions = new Array<number>(96);
for (let j = 0; j < 6; ++j) { for (let j = 0; j < 6; ++j) {
for (let k = 0; k < 16; ++k) { for (let k = 0; k < 16; ++k) {
expandedOcclusions[j * 16 + k] = occlusions[j][k % 4]; expandedOcclusions[j * 16 + k] = occlusions[(j * 4) + (k % 4)];
} }
} }
return expandedOcclusions; return expandedOcclusions;
} }
} }