kraken_engine/kraken
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Replaced Facet3 with hydra's Facet3

Browse Source
This commit is contained in:
Kearwood Kip Gilbert
2019-07-17 22:19:13 -07:00
parent 3be32926b9
commit 4a9009427a
1 changed files with 27 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
kraken/KRMeshSphere.cpp
View File

@@ -43,21 +43,8 @@ KRMeshSphere::KRMeshSphere(KRContext &context) : KRMesh(context, "__sphere")
int iterations = 3; int iterations = 3;
int facet_count = (int)(pow(4, iterations) * 8.0f); int facet_count = (int)(pow(4, iterations) * 8.0f);
class Facet3 {
public:
Facet3() {
}
~Facet3() {
}
Vector3 p1;
Vector3 p2;
Vector3 p3;
};
std::vector<Facet3> f = std::vector<Facet3>(facet_count); std::vector<Triangle3> f = std::vector<Triangle3>(facet_count);
int i,it; int i,it;
float a; float a;
@@ -79,45 +66,45 @@ KRMeshSphere::KRMeshSphere(KRContext &context) : KRMesh(context, "__sphere")
p[i].x *= a; p[i].x *= a;
p[i].y *= a; p[i].y *= a;
} }
f[0].p1 = p[0]; f[0].p2 = p[3]; f[0].p3 = p[4]; f[0][0] = p[0]; f[0][1] = p[3]; f[0][2] = p[4];
f[1].p1 = p[0]; f[1].p2 = p[4]; f[1].p3 = p[5]; f[1][0] = p[0]; f[1][1] = p[4]; f[1][2] = p[5];
f[2].p1 = p[0]; f[2].p2 = p[5]; f[2].p3 = p[2]; f[2][0] = p[0]; f[2][1] = p[5]; f[2][2] = p[2];
f[3].p1 = p[0]; f[3].p2 = p[2]; f[3].p3 = p[3]; f[3][0] = p[0]; f[3][1] = p[2]; f[3][2] = p[3];
f[4].p1 = p[1]; f[4].p2 = p[4]; f[4].p3 = p[3]; f[4][0] = p[1]; f[4][1] = p[4]; f[4][2] = p[3];
f[5].p1 = p[1]; f[5].p2 = p[5]; f[5].p3 = p[4]; f[5][0] = p[1]; f[5][1] = p[5]; f[5][2] = p[4];
f[6].p1 = p[1]; f[6].p2 = p[2]; f[6].p3 = p[5]; f[6][0] = p[1]; f[6][1] = p[2]; f[6][2] = p[5];
f[7].p1 = p[1]; f[7].p2 = p[3]; f[7].p3 = p[2]; f[7][0] = p[1]; f[7][1] = p[3]; f[7][2] = p[2];
nt = 8; nt = 8;
/* Bisect each edge and move to the surface of a unit sphere */ /* Bisect each edge and move to the surface of a unit sphere */
for (it=0;it<iterations;it++) { for (it=0;it<iterations;it++) {
ntold = nt; ntold = nt;
for (i=0;i<ntold;i++) { for (i=0;i<ntold;i++) {
pa.x = (f[i].p1.x + f[i].p2.x) / 2; pa.x = (f[i][0].x + f[i][1].x) / 2;
pa.y = (f[i].p1.y + f[i].p2.y) / 2; pa.y = (f[i][0].y + f[i][1].y) / 2;
pa.z = (f[i].p1.z + f[i].p2.z) / 2; pa.z = (f[i][0].z + f[i][1].z) / 2;
pb.x = (f[i].p2.x + f[i].p3.x) / 2; pb.x = (f[i][1].x + f[i][2].x) / 2;
pb.y = (f[i].p2.y + f[i].p3.y) / 2; pb.y = (f[i][1].y + f[i][2].y) / 2;
pb.z = (f[i].p2.z + f[i].p3.z) / 2; pb.z = (f[i][1].z + f[i][2].z) / 2;
pc.x = (f[i].p3.x + f[i].p1.x) / 2; pc.x = (f[i][2].x + f[i][0].x) / 2;
pc.y = (f[i].p3.y + f[i].p1.y) / 2; pc.y = (f[i][2].y + f[i][0].y) / 2;
pc.z = (f[i].p3.z + f[i].p1.z) / 2; pc.z = (f[i][2].z + f[i][0].z) / 2;
pa.normalize(); pa.normalize();
pb.normalize(); pb.normalize();
pc.normalize(); pc.normalize();
f[nt].p1 = f[i].p1; f[nt].p2 = pa; f[nt].p3 = pc; nt++; f[nt][0] = f[i][0]; f[nt][1] = pa; f[nt][2] = pc; nt++;
f[nt].p1 = pa; f[nt].p2 = f[i].p2; f[nt].p3 = pb; nt++; f[nt][0] = pa; f[nt][1] = f[i][1]; f[nt][2] = pb; nt++;
f[nt].p1 = pb; f[nt].p2 = f[i].p3; f[nt].p3 = pc; nt++; f[nt][0] = pb; f[nt][1] = f[i][2]; f[nt][2] = pc; nt++;
f[i].p1 = pa; f[i][0] = pa;
f[i].p2 = pb; f[i][1] = pb;
f[i].p3 = pc; f[i][2] = pc;
} }
} }
for(int facet_index=0; facet_index < facet_count; facet_index++) { for(int facet_index=0; facet_index < facet_count; facet_index++) {
mi.vertices.push_back(f[facet_index].p1); mi.vertices.push_back(f[facet_index][0]);
mi.vertices.push_back(f[facet_index].p2); mi.vertices.push_back(f[facet_index][1]);
mi.vertices.push_back(f[facet_index].p3); mi.vertices.push_back(f[facet_index][2]);
} }
mi.submesh_starts.push_back(0); mi.submesh_starts.push_back(0);