| 1 | // Copyright 2009-2021 Intel Corporation |
|---|---|
| 2 | // SPDX-License-Identifier: Apache-2.0 |
| 3 | |
| 4 | #pragma once |
| 5 | |
| 6 | #include "bvh.h" |
| 7 | |
| 8 | namespace embree |
| 9 | { |
| 10 | namespace isa |
| 11 | { |
| 12 | struct NearFarPrecalculations |
| 13 | { |
| 14 | size_t nearX, nearY, nearZ; |
| 15 | size_t farX, farY, farZ; |
| 16 | |
| 17 | __forceinline NearFarPrecalculations() {} |
| 18 | |
| 19 | __forceinline NearFarPrecalculations(const Vec3fa& dir, size_t N) |
| 20 | { |
| 21 | const size_t size = sizeof(float)*N; |
| 22 | nearX = (dir.x < 0.0f) ? 1*size : 0*size; |
| 23 | nearY = (dir.y < 0.0f) ? 3*size : 2*size; |
| 24 | nearZ = (dir.z < 0.0f) ? 5*size : 4*size; |
| 25 | farX = nearX ^ size; |
| 26 | farY = nearY ^ size; |
| 27 | farZ = nearZ ^ size; |
| 28 | } |
| 29 | }; |
| 30 | } |
| 31 | } |
| 32 |