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non-rounded collision solution in comments

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Andrew Meadows 2014-04-23 08:38:58 -07:00
parent 5992651c27
commit 7464ca0879
1 changed files with 10 additions and 0 deletions
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10
libraries/shared/src/ShapeCollider.cpp
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@ -606,6 +606,16 @@ bool sphereAACube(const glm::vec3& sphereCenter, float sphereRadius, const glm::
if (glm::dot(surfaceAB, BA) > 0.f) { if (glm::dot(surfaceAB, BA) > 0.f) {
CollisionInfo* collision = collisions.getNewCollision(); CollisionInfo* collision = collisions.getNewCollision();
if (collision) { if (collision) {
/* KEEP THIS CODE -- this is how to collide the cube with stark face normals (no rounding).
* We might want to use this code later for sealing boundaries between adjacent voxels.
// penetration is parallel to box side direction
BA /= maxBA;
glm::vec3 direction;
glm::modf(BA, direction);
direction = glm::normalize(direction);
*/
// For rounded normals at edges and corners:
// At this point imagine that sphereCenter touches a "normalized" cube with rounded edges. // At this point imagine that sphereCenter touches a "normalized" cube with rounded edges.
// This cube has a sidelength of 2 and its smoothing radius is sphereRadius/maxBA. // This cube has a sidelength of 2 and its smoothing radius is sphereRadius/maxBA.
// We're going to try to compute the "negative normal" (and hence direction of penetration) // We're going to try to compute the "negative normal" (and hence direction of penetration)