it('works for simple example', () => {
const m = mat4.perspective(mat4.create(), Math.PI / 2, 4.0, 7, 113);
const planes = getFrustrumPlanes(new Float32Array(24), m);
expect(isAABBVisible(-1, -1, -20, 1, 1, -15, planes)).toBe(true);
expect(isAABBVisible(-50, -1, -8, -40, 1, -7, planes)).toBe(false);
expect(isAABBVisible(40, -1, -8, 50, 1, -7, planes)).toBe(false);
expect(isAABBVisible(-1, -50, -8, 1, -40, -7, planes)).toBe(false);
expect(isAABBVisible(-1, 40, -8, 1, 50, -7, planes)).toBe(false);
expect(isAABBVisible(-1, -1, -112, 1, 1, -113, planes)).toBe(true);
expect(isAABBVisible(-1, -1, -114, 1, 1, -118, planes)).toBe(false);
});
function getChunkList(
manifest: MultiscaleMeshManifest, modelViewProjection: mat4, detailCutoff: number,
viewportWidth: number, viewportHeight: number): MultiscaleChunkResult[] {
const results: MultiscaleChunkResult[] = [];
getDesiredMultiscaleMeshChunks(
manifest, modelViewProjection, getFrustrumPlanes(new Float32Array(24), modelViewProjection),
detailCutoff, viewportWidth, viewportHeight, (lod, beginIndex, endIndex, renderScale) => {
results.push({lod, renderScale, beginIndex, endIndex});
});
return results;
}
it('works for simple example', () => {
const m = mat4.perspective(mat4.create(), Math.PI / 2, 4.0, 7, 113);
const planes = getFrustrumPlanes(new Float32Array(24), m);
const expectedPlanes = [
// left
+0.25, 0, -1, 0,
// right
-0.25, 0, -1, 0,
// bottom
0, 1, -1, 0,
// top
0, -1, -1, 0,
// near
0, 0, -1, -7,
// far
0, 0, 0.13207542896270752, 14.924528121948242
];
planes.every((x, i) => expect(x).toBeCloseTo(expectedPlanes[i]));
});