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build-null.ts
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build-null.ts
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export const buildNullIndex = (
indices: Uint16Array | Uint32Array,
voffset: number,
ioffset: number,
icount: number
): void => {
for (let ii = ioffset * 3, iimax = (ioffset + icount) * 3; ii < iimax; ii += 3) {
indices[ii + 0] = voffset;
indices[ii + 1] = voffset;
indices[ii + 2] = voffset;
}
};
export const buildNullVertex = (vertices: Float32Array, voffset: number, vcount: number): void => {
for (let i = voffset * 2, imax = (voffset + vcount) * 2; i < imax; i += 2) {
vertices[i + 0] = 0;
vertices[i + 1] = 0;
}
};
export const buildNullStep = (steps: Float32Array, voffset: number, vcount: number): void => {
for (let i = voffset * 6, imax = (voffset + vcount) * 6; i < imax; i += 6) {
steps[i + 0] = 0;
steps[i + 1] = 0;
steps[i + 2] = 0;
steps[i + 3] = 0;
steps[i + 4] = 0;
steps[i + 5] = 0;
}
};
export const buildNullUv = (uvs: Float32Array, voffset: number, vcount: number): void => {
for (let i = voffset * 2, imax = (voffset + vcount) * 2; i < imax; i += 2) {
uvs[i + 0] = 0;
uvs[i + 1] = 0;
}
};