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This commit is contained in:
Yehonal
844
modules/dep/g3dlite/source/Intersect.cpp
Normal file
844
modules/dep/g3dlite/source/Intersect.cpp
Normal file
@@ -0,0 +1,844 @@
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/**
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@file Intersect.cpp
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@maintainer Morgan McGuire, http://graphics.cs.williams.edu
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@created 2009-06-29
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@edited 2009-06-29
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Copyright 2000-2009, Morgan McGuire.
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All rights reserved.
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From the G3D Innovation Engine
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http://g3d.sf.net
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*/
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#include "G3D/Intersect.h"
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namespace G3D {
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#ifdef _MSC_VER
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// Turn on fast floating-point optimizations
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#pragma float_control( push )
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#pragma fp_contract( on )
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#pragma fenv_access( off )
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#pragma float_control( except, off )
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#pragma float_control( precise, off )
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#endif
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bool __fastcall Intersect::rayAABox(const Ray& ray, const AABox& box) {
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switch (ray.classification) {
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case Ray::MMM:
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if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
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|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)
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)
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return false;
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return true;
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case Ray::MMP:
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if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
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|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
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|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)
|
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|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)
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)
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return false;
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return true;
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case Ray::MPM:
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if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
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|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
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||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
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|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)
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|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)
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)
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return false;
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return true;
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case Ray::MPP:
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if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)
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||||
)
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return false;
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||||
|
||||
return true;
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||||
|
||||
case Ray::PMM:
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||||
|
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if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)
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||||
)
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||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::PMP:
|
||||
|
||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)
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||||
)
|
||||
return false;
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||||
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||||
return true;
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||||
|
||||
case Ray::PPM:
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|
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if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)
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||||
)
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||||
return false;
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||||
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||||
return true;
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||||
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||||
case Ray::PPP:
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||||
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||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
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||||
|
||||
return true;
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||||
|
||||
case Ray::OMM:
|
||||
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)
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||||
)
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||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::OMP:
|
||||
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::OPM:
|
||||
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::OPP:
|
||||
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::MOM:
|
||||
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::MOP:
|
||||
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)
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||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::POM:
|
||||
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::POP:
|
||||
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::MMO:
|
||||
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y)
|
||||
|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::MPO:
|
||||
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::PMO:
|
||||
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::PPO:
|
||||
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::MOO:
|
||||
|
||||
if((ray.m_origin.x < box.lo.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::POO:
|
||||
|
||||
if((ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
case Ray::OMO:
|
||||
|
||||
if((ray.m_origin.y < box.lo.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
)
|
||||
return false;
|
||||
|
||||
case Ray::OPO:
|
||||
|
||||
if((ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
)
|
||||
return false;
|
||||
|
||||
case Ray::OOM:
|
||||
|
||||
if((ray.m_origin.z < box.lo.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
)
|
||||
return false;
|
||||
|
||||
case Ray::OOP:
|
||||
|
||||
if((ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
bool __fastcall Intersect::rayAABox(const Ray& ray, const AABox& box, float& time) {
|
||||
|
||||
switch (ray.classification) {
|
||||
case Ray::MMM:
|
||||
{
|
||||
if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// compute the intersection distance
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::MMP:
|
||||
{
|
||||
if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::MPM:
|
||||
{
|
||||
if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::MPP:
|
||||
{
|
||||
if ((ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::PMM:
|
||||
{
|
||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::PMP:
|
||||
{
|
||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::PPM:
|
||||
{
|
||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::PPP:
|
||||
{
|
||||
if ((ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OMM:
|
||||
{
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyk * box.lo.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.hi.z + ray.c_yz > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OMP:
|
||||
{
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyk * box.hi.z - box.hi.y + ray.c_zy > 0)
|
||||
|| (ray.kbyj * box.lo.y - box.lo.z + ray.c_yz < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OPM:
|
||||
{
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y > box.hi.y) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.jbyk * box.lo.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.hi.z + ray.c_yz > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OPP:
|
||||
{
|
||||
if((ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y > box.hi.y) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.jbyk * box.hi.z - box.lo.y + ray.c_zy < 0)
|
||||
|| (ray.kbyj * box.hi.y - box.lo.z + ray.c_yz < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::MOM:
|
||||
{
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.kbyi * box.lo.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::MOP:
|
||||
{
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.kbyi * box.lo.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.hi.x + ray.c_zx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::POM:
|
||||
{
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.z < box.lo.z)
|
||||
|| (ray.kbyi * box.hi.x - box.hi.z + ray.c_xz > 0)
|
||||
|| (ray.ibyk * box.lo.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t2 = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::POP:
|
||||
{
|
||||
if((ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.kbyi * box.hi.x - box.lo.z + ray.c_xz < 0)
|
||||
|| (ray.ibyk * box.hi.z - box.lo.x + ray.c_zx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t2 = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
if (t2 > time) {
|
||||
time = t2;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::MMO:
|
||||
{
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.y < box.lo.y)
|
||||
|| (ray.jbyi * box.lo.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.hi.x + ray.c_yx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::MPO:
|
||||
{
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.jbyi * box.lo.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.hi.x + ray.c_yx > 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::PMO:
|
||||
{
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.y < box.lo.y)
|
||||
|| (ray.jbyi * box.hi.x - box.hi.y + ray.c_xy > 0)
|
||||
|| (ray.ibyj * box.lo.y - box.lo.x + ray.c_yx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::PPO:
|
||||
{
|
||||
if((ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x > box.hi.x) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.jbyi * box.hi.x - box.lo.y + ray.c_xy < 0)
|
||||
|| (ray.ibyj * box.hi.y - box.lo.x + ray.c_yx < 0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
float t1 = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
if (t1 > time) {
|
||||
time = t1;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::MOO:
|
||||
{
|
||||
if((ray.m_origin.x < box.lo.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::POO:
|
||||
{
|
||||
if ((ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.x - ray.m_origin.x) * ray.m_invDirection.x;
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OMO:
|
||||
{
|
||||
if ((ray.m_origin.y < box.lo.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OPO:
|
||||
{
|
||||
if ((ray.m_origin.y > box.hi.y)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.z < box.lo.z) || (ray.m_origin.z > box.hi.z)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.y - ray.m_origin.y) * ray.m_invDirection.y;
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
case Ray::OOM:
|
||||
{
|
||||
if ((ray.m_origin.z < box.lo.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.hi.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
return true;
|
||||
}
|
||||
|
||||
case Ray::OOP:
|
||||
{
|
||||
if ((ray.m_origin.z > box.hi.z)
|
||||
|| (ray.m_origin.x < box.lo.x) || (ray.m_origin.x > box.hi.x)
|
||||
|| (ray.m_origin.y < box.lo.y) || (ray.m_origin.y > box.hi.y)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
time = (box.lo.z - ray.m_origin.z) * ray.m_invDirection.z;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
#ifdef _MSC_VER
|
||||
// Turn off fast floating-point optimizations
|
||||
#pragma float_control( pop )
|
||||
#endif
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user