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fix a NaN in ViewFrustum and BuckyBalls

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Stephen Birarda 2014-03-04 15:53:05 -08:00
parent 161b8ad50b
commit b78e723253
2 changed files with 21 additions and 16 deletions
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31
interface/src/BuckyBalls.cpp
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@ -106,21 +106,26 @@ void BuckyBalls::simulate(float deltaTime, const HandData* handData) {
for (int j = 0; j < NUM_BBALLS; j++) {
if (i != j) {
glm::vec3 diff = _bballPosition[i] - _bballPosition[j];
float penetration = glm::length(diff) - (_bballRadius[i] + _bballRadius[j]);
if (penetration < 0.f) {
// Colliding - move away and transfer velocity
_bballPosition[i] -= glm::normalize(diff) * penetration * COLLISION_BLEND_RATE;
if (glm::dot(_bballVelocity[i], diff) < 0.f) {
_bballVelocity[i] = _bballVelocity[i] * (1.f - COLLISION_BLEND_RATE) +
glm::reflect(_bballVelocity[i], glm::normalize(diff)) * COLLISION_BLEND_RATE;
float diffLength = glm::length(diff);
float penetration = diffLength - (_bballRadius[i] + _bballRadius[j]);
if (diffLength != 0) {
if (penetration < 0.f) {
// Colliding - move away and transfer velocity
_bballPosition[i] -= glm::normalize(diff) * penetration * COLLISION_BLEND_RATE;
if (glm::dot(_bballVelocity[i], diff) < 0.f) {
_bballVelocity[i] = _bballVelocity[i] * (1.f - COLLISION_BLEND_RATE) +
glm::reflect(_bballVelocity[i], glm::normalize(diff)) * COLLISION_BLEND_RATE;
}
} else if ((penetration > EPSILON) && (penetration < BBALLS_ATTRACTION_DISTANCE)) {
// If they get close to each other, bring them together with magnetic force
_bballPosition[i] -= glm::normalize(diff) * penetration * ATTRACTION_BLEND_RATE;
// Also make their velocities more similar
_bballVelocity[i] = _bballVelocity[i] * (1.f - ATTRACTION_VELOCITY_BLEND_RATE) + _bballVelocity[j] * ATTRACTION_VELOCITY_BLEND_RATE;
}
}
else if ((penetration > EPSILON) && (penetration < BBALLS_ATTRACTION_DISTANCE)) {
// If they get close to each other, bring them together with magnetic force
_bballPosition[i] -= glm::normalize(diff) * penetration * ATTRACTION_BLEND_RATE;
// Also make their velocities more similar
_bballVelocity[i] = _bballVelocity[i] * (1.f - ATTRACTION_VELOCITY_BLEND_RATE) + _bballVelocity[j] * ATTRACTION_VELOCITY_BLEND_RATE;
}
}
}
}

6
libraries/octree/src/ViewFrustum.cpp
View file

@ -26,9 +26,9 @@ using namespace std;
ViewFrustum::ViewFrustum() :
_position(0,0,0),
_orientation(),
_direction(0,0,0),
_up(0,0,0),
_right(0,0,0),
_direction(IDENTITY_FRONT),
_up(IDENTITY_UP),
_right(IDENTITY_RIGHT),
_fieldOfView(0.0),
_aspectRatio(1.0f),
_nearClip(0.1f),