AnotherFoxGuy/bounce
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

New feature: soft bodies!

Browse Source
This commit is contained in:
Irlan
2019-05-13 19:03:23 -03:00
parent f1c4cf4679
commit 637199b5fd
21 changed files with 3588 additions and 298 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
include/bounce/common/geometry.h
View File

@@ -144,6 +144,32 @@ inline void b3BarycentricCoordinates(float32 out[4],
out[3] = out[0] + out[1] + out[2];
}
// Convert a point Q from Cartesian coordinates to Barycentric coordinates (u, v, w, x)
// with respect to a tetrahedron ABCD.
// The last output value is the (positive) divisor.
inline void b3BarycentricCoordinates(float32 out[5],
const b3Vec3& A, const b3Vec3& B, const b3Vec3& C, const b3Vec3& D,
const b3Vec3& Q)
{
b3Vec3 AB = B - A;
b3Vec3 AC = C - A;
b3Vec3 AD = D - A;
b3Vec3 QA = A - Q;
b3Vec3 QB = B - Q;
b3Vec3 QC = C - Q;
b3Vec3 QD = D - Q;
float32 divisor = b3Det(AB, AC, AD);
float32 sign = b3Sign(divisor);
out[0] = sign * b3Det(QB, QC, QD);
out[1] = sign * b3Det(QA, QD, QC);
out[2] = sign * b3Det(QA, QB, QD);
out[3] = sign * b3Det(QA, QC, QB);
out[4] = sign * divisor;
}
// Project a point onto a segment AB.
inline b3Vec3 b3ClosestPointOnSegment(const b3Vec3& P, const b3Vec3& A, const b3Vec3& B)
{