Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-20 18:23:54 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

tweak ViewFrustum::matches() to use EPSILON compare

Browse source
This commit is contained in:
ZappoMan 2013-05-25 15:28:56 -07:00
parent 1f8842c6af
commit 48ca562b10
2 changed files with 39 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

61
libraries/voxels/src/ViewFrustum.cpp
View file

@ -220,57 +220,70 @@ ViewFrustum::location ViewFrustum::boxInFrustum(const AABox& box) const {
}
}
return(result);
}
bool ViewFrustum::matches(const ViewFrustum& compareTo) const {
bool debug = false;
bool result = compareTo._position == _position &&
compareTo._direction == _direction &&
compareTo._up == _up &&
compareTo._right == _right &&
compareTo._fieldOfView == _fieldOfView &&
compareTo._aspectRatio == _aspectRatio &&
compareTo._nearClip == _nearClip &&
compareTo._farClip == _farClip &&
compareTo._eyeOffsetPosition == _eyeOffsetPosition &&
compareTo._eyeOffsetOrientation == _eyeOffsetOrientation;
}
bool testMatches(glm::quat lhs, glm::quat rhs) {
return (fabs(lhs.x - rhs.x) <= EPSILON && fabs(lhs.y - rhs.y) <= EPSILON && fabs(lhs.z - rhs.z) <= EPSILON
&& fabs(lhs.w - rhs.w) <= EPSILON);
}
bool testMatches(glm::vec3 lhs, glm::vec3 rhs) {
return (fabs(lhs.x - rhs.x) <= EPSILON && fabs(lhs.y - rhs.y) <= EPSILON && fabs(lhs.z - rhs.z) <= EPSILON);
}
bool testMatches(float lhs, float rhs) {
return (fabs(lhs - rhs) <= EPSILON);
}
bool ViewFrustum::matches(const ViewFrustum& compareTo, bool debug) const {
bool result =
testMatches(compareTo._position, _position ) &&
testMatches(compareTo._direction, _direction ) &&
testMatches(compareTo._up, _up ) &&
testMatches(compareTo._right, _right ) &&
testMatches(compareTo._fieldOfView, _fieldOfView ) &&
testMatches(compareTo._aspectRatio, _aspectRatio ) &&
testMatches(compareTo._nearClip, _nearClip ) &&
testMatches(compareTo._farClip, _farClip ) &&
testMatches(compareTo._eyeOffsetPosition, _eyeOffsetPosition ) &&
testMatches(compareTo._eyeOffsetOrientation, _eyeOffsetOrientation);
if (!result && debug) {
printLog("ViewFrustum::matches()... result=%s\n", debug::valueOf(result));
printLog("%s -- compareTo._position=%f,%f,%f _position=%f,%f,%f\n",
(compareTo._position == _position ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._position,_position) ? "MATCHES " : "NO MATCH"),
compareTo._position.x, compareTo._position.y, compareTo._position.z,
_position.x, _position.y, _position.z );
printLog("%s -- compareTo._direction=%f,%f,%f _direction=%f,%f,%f\n",
(compareTo._direction == _direction ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._direction, _direction) ? "MATCHES " : "NO MATCH"),
compareTo._direction.x, compareTo._direction.y, compareTo._direction.z,
_direction.x, _direction.y, _direction.z );
printLog("%s -- compareTo._up=%f,%f,%f _up=%f,%f,%f\n",
(compareTo._up == _up ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._up, _up) ? "MATCHES " : "NO MATCH"),
compareTo._up.x, compareTo._up.y, compareTo._up.z,
_up.x, _up.y, _up.z );
printLog("%s -- compareTo._right=%f,%f,%f _right=%f,%f,%f\n",
(compareTo._right == _right ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._right, _right) ? "MATCHES " : "NO MATCH"),
compareTo._right.x, compareTo._right.y, compareTo._right.z,
_right.x, _right.y, _right.z );
printLog("%s -- compareTo._fieldOfView=%f _fieldOfView=%f\n",
(compareTo._fieldOfView == _fieldOfView ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._fieldOfView, _fieldOfView) ? "MATCHES " : "NO MATCH"),
compareTo._fieldOfView, _fieldOfView);
printLog("%s -- compareTo._aspectRatio=%f _aspectRatio=%f\n",
(compareTo._aspectRatio == _aspectRatio ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._aspectRatio, _aspectRatio) ? "MATCHES " : "NO MATCH"),
compareTo._aspectRatio, _aspectRatio);
printLog("%s -- compareTo._nearClip=%f _nearClip=%f\n",
(compareTo._nearClip == _nearClip ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._nearClip, _nearClip) ? "MATCHES " : "NO MATCH"),
compareTo._nearClip, _nearClip);
printLog("%s -- compareTo._farClip=%f _farClip=%f\n",
(compareTo._farClip == _farClip ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._farClip, _farClip) ? "MATCHES " : "NO MATCH"),
compareTo._farClip, _farClip);
printLog("%s -- compareTo._eyeOffsetPosition=%f,%f,%f _eyeOffsetPosition=%f,%f,%f\n",
(compareTo._eyeOffsetPosition == _eyeOffsetPosition ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._eyeOffsetPosition, _eyeOffsetPosition) ? "MATCHES " : "NO MATCH"),
compareTo._eyeOffsetPosition.x, compareTo._eyeOffsetPosition.y, compareTo._eyeOffsetPosition.z,
_eyeOffsetPosition.x, _eyeOffsetPosition.y, _eyeOffsetPosition.z);
printLog("%s -- compareTo._eyeOffsetOrientation=%f,%f,%f,%f _eyeOffsetOrientation=%f,%f,%f,%f\n",
(compareTo._eyeOffsetOrientation == _eyeOffsetOrientation ? "MATCHES " : "NO MATCH"),
(testMatches(compareTo._eyeOffsetOrientation, _eyeOffsetOrientation) ? "MATCHES " : "NO MATCH"),
compareTo._eyeOffsetOrientation.x, compareTo._eyeOffsetOrientation.y,
compareTo._eyeOffsetOrientation.z, compareTo._eyeOffsetOrientation.w,
_eyeOffsetOrientation.x, _eyeOffsetOrientation.y, _eyeOffsetOrientation.z, _eyeOffsetOrientation.w);

4
libraries/voxels/src/ViewFrustum.h
View file

@ -108,8 +108,8 @@ public:
ViewFrustum::location boxInFrustum(const AABox& box) const;
// some frustum comparisons
bool matches(const ViewFrustum& compareTo) const;
bool matches(const ViewFrustum* compareTo) const { return matches(*compareTo); };
bool matches(const ViewFrustum& compareTo, bool debug = false) const;
bool matches(const ViewFrustum* compareTo, bool debug = false) const { return matches(*compareTo, debug); };
void computePickRay(float x, float y, glm::vec3& origin, glm::vec3& direction) const;