| 1 | // Copyright 2009-2021 Intel Corporation |
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| 2 | // SPDX-License-Identifier: Apache-2.0 |
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| 3 | |
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| 4 | #pragma once |
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| 5 | |
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| 6 | #include "../common/default.h" |
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| 7 | #include "bezier_curve.h" |
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| 8 | |
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| 9 | namespace embree |
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| 10 | { |
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| 11 | template<typename Vertex> |
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| 12 | struct HermiteCurveT : BezierCurveT<Vertex> |
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| 13 | { |
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| 14 | __forceinline HermiteCurveT() {} |
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| 15 | |
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| 16 | __forceinline HermiteCurveT(const BezierCurveT<Vertex>& curve) |
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| 17 | : BezierCurveT<Vertex>(curve) {} |
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| 18 | |
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| 19 | __forceinline HermiteCurveT(const Vertex& v0, const Vertex& t0, const Vertex& v1, const Vertex& t1) |
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| 20 | : BezierCurveT<Vertex>(v0,madd(1.0f/3.0f,t0,v0),nmadd(1.0f/3.0f,t1,v1),v1) {} |
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| 21 | |
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| 22 | __forceinline HermiteCurveT<Vec3ff> xfm_pr(const LinearSpace3fa& space, const Vec3fa& p) const |
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| 23 | { |
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| 24 | const Vec3ff q0(xfmVector(space,this->v0-p), this->v0.w); |
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| 25 | const Vec3ff q1(xfmVector(space,this->v1-p), this->v1.w); |
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| 26 | const Vec3ff q2(xfmVector(space,this->v2-p), this->v2.w); |
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| 27 | const Vec3ff q3(xfmVector(space,this->v3-p), this->v3.w); |
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| 28 | return BezierCurveT<Vec3ff>(q0,q1,q2,q3); |
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| 29 | } |
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| 30 | }; |
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| 31 | |
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| 32 | template<typename CurveGeometry> |
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| 33 | __forceinline HermiteCurveT<Vec3ff> enlargeRadiusToMinWidth(const IntersectContext* context, const CurveGeometry* geom, const Vec3fa& ray_org, const HermiteCurveT<Vec3ff>& curve) { |
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| 34 | return HermiteCurveT<Vec3ff>(enlargeRadiusToMinWidth(context,geom,ray_org,BezierCurveT<Vec3ff>(curve))); |
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| 35 | } |
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| 36 | |
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| 37 | typedef HermiteCurveT<Vec3fa> HermiteCurve3fa; |
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| 38 | } |
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| 39 | |
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| 40 | |
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