1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "primitive.h"
namespace embree
{
/* Stores the vertices of M triangles in struct of array layout */
template <int M>
struct TriangleMv
{
public:
struct Type : public PrimitiveType
{
const char* name() const;
size_t sizeActive(const char* This) const;
size_t sizeTotal(const char* This) const;
size_t getBytes(const char* This) const;
};
static Type type;
public:
/* Returns maximum number of stored triangles */
static __forceinline size_t max_size() { return M; }
/* Returns required number of primitive blocks for N primitives */
static __forceinline size_t blocks(size_t N) { return (N+max_size()-1)/max_size(); }
public:
/* Default constructor */
__forceinline TriangleMv() {}
/* Construction from vertices and IDs */
__forceinline TriangleMv(const Vec3vf<M>& v0, const Vec3vf<M>& v1, const Vec3vf<M>& v2, const vuint<M>& geomIDs, const vuint<M>& primIDs)
: v0(v0), v1(v1), v2(v2), geomIDs(geomIDs), primIDs(primIDs) {}
/* Returns a mask that tells which triangles are valid */
__forceinline vbool<M> valid() const { return geomIDs != vuint<M>(-1); }
/* Returns true if the specified triangle is valid */
__forceinline bool valid(const size_t i) const { assert(i<M); return geomIDs[i] != -1; }
/* Returns the number of stored triangles */
__forceinline size_t size() const { return bsf(~movemask(valid())); }
/* Returns the geometry IDs */
__forceinline vuint<M>& geomID() { return geomIDs; }
__forceinline const vuint<M>& geomID() const { return geomIDs; }
__forceinline unsigned int geomID(const size_t i) const { assert(i<M); return geomIDs[i]; }
/* Returns the primitive IDs */
__forceinline vuint<M>& primID() { return primIDs; }
__forceinline const vuint<M>& primID() const { return primIDs; }
__forceinline unsigned int primID(const size_t i) const { assert(i<M); return primIDs[i]; }
/* Calculate the bounds of the triangles */
__forceinline BBox3fa bounds() const
{
Vec3vf<M> lower = min(v0,v1,v2);
Vec3vf<M> upper = max(v0,v1,v2);
vbool<M> mask = valid();
lower.x = select(mask,lower.x,vfloat<M>(pos_inf));
lower.y = select(mask,lower.y,vfloat<M>(pos_inf));
lower.z = select(mask,lower.z,vfloat<M>(pos_inf));
upper.x = select(mask,upper.x,vfloat<M>(neg_inf));
upper.y = select(mask,upper.y,vfloat<M>(neg_inf));
upper.z = select(mask,upper.z,vfloat<M>(neg_inf));
return BBox3fa(Vec3fa(reduce_min(lower.x),reduce_min(lower.y),reduce_min(lower.z)),
Vec3fa(reduce_max(upper.x),reduce_max(upper.y),reduce_max(upper.z)));
}
/* Non temporal store */
__forceinline static void store_nt(TriangleMv* dst, const TriangleMv& src)
{
vfloat<M>::store_nt(&dst->v0.x,src.v0.x);
vfloat<M>::store_nt(&dst->v0.y,src.v0.y);
vfloat<M>::store_nt(&dst->v0.z,src.v0.z);
vfloat<M>::store_nt(&dst->v1.x,src.v1.x);
vfloat<M>::store_nt(&dst->v1.y,src.v1.y);
vfloat<M>::store_nt(&dst->v1.z,src.v1.z);
vfloat<M>::store_nt(&dst->v2.x,src.v2.x);
vfloat<M>::store_nt(&dst->v2.y,src.v2.y);
vfloat<M>::store_nt(&dst->v2.z,src.v2.z);
vuint<M>::store_nt(&dst->geomIDs,src.geomIDs);
vuint<M>::store_nt(&dst->primIDs,src.primIDs);
}
/* Fill triangle from triangle list */
__forceinline void fill(const PrimRef* prims, size_t& begin, size_t end, Scene* scene)
{
vuint<M> vgeomID = -1, vprimID = -1;
Vec3vf<M> v0 = zero, v1 = zero, v2 = zero;
for (size_t i=0; i<M && begin<end; i++, begin++)
{
const PrimRef& prim = prims[begin];
const unsigned geomID = prim.geomID();
const unsigned primID = prim.primID();
const TriangleMesh* __restrict__ const mesh = scene->get<TriangleMesh>(geomID);
const TriangleMesh::Triangle& tri = mesh->triangle(primID);
const Vec3fa& p0 = mesh->vertex(tri.v[0]);
const Vec3fa& p1 = mesh->vertex(tri.v[1]);
const Vec3fa& p2 = mesh->vertex(tri.v[2]);
vgeomID [i] = geomID;
vprimID [i] = primID;
v0.x[i] = p0.x; v0.y[i] = p0.y; v0.z[i] = p0.z;
v1.x[i] = p1.x; v1.y[i] = p1.y; v1.z[i] = p1.z;
v2.x[i] = p2.x; v2.y[i] = p2.y; v2.z[i] = p2.z;
}
TriangleMv::store_nt(this,TriangleMv(v0,v1,v2,vgeomID,vprimID));
}
/* Updates the primitive */
__forceinline BBox3fa update(TriangleMesh* mesh)
{
BBox3fa bounds = empty;
vuint<M> vgeomID = -1, vprimID = -1;
Vec3vf<M> v0 = zero, v1 = zero, v2 = zero;
for (size_t i=0; i<M; i++)
{
if (primID(i) == -1) break;
const unsigned geomId = geomID(i);
const unsigned primId = primID(i);
const TriangleMesh::Triangle& tri = mesh->triangle(primId);
const Vec3fa p0 = mesh->vertex(tri.v[0]);
const Vec3fa p1 = mesh->vertex(tri.v[1]);
const Vec3fa p2 = mesh->vertex(tri.v[2]);
bounds.extend(merge(BBox3fa(p0),BBox3fa(p1),BBox3fa(p2)));
vgeomID [i] = geomId;
vprimID [i] = primId;
v0.x[i] = p0.x; v0.y[i] = p0.y; v0.z[i] = p0.z;
v1.x[i] = p1.x; v1.y[i] = p1.y; v1.z[i] = p1.z;
v2.x[i] = p2.x; v2.y[i] = p2.y; v2.z[i] = p2.z;
}
new (this) TriangleMv(v0,v1,v2,vgeomID,vprimID);
return bounds;
}
public:
Vec3vf<M> v0; // 1st vertex of the triangles
Vec3vf<M> v1; // 2nd vertex of the triangles
Vec3vf<M> v2; // 3rd vertex of the triangles
private:
vuint<M> geomIDs; // geometry ID
vuint<M> primIDs; // primitive ID
};
template<int M>
typename TriangleMv<M>::Type TriangleMv<M>::type;
typedef TriangleMv<4> Triangle4v;
}
|