IntersectRayBoundsResult Scene::IntersectRayBounds(SceneObject *target, bool axisInWorld) {
Matrix4f worldToModelM = target->GetMatrixWorld().Inverted();
Matrix4f invertedCenterViewM = centerViewM.Inverted();
Vector3f inWorldCenterViewPos = invertedCenterViewM.GetTranslation();
Quatf centerViewRot = Quatf(invertedCenterViewM);
const Vector3f rayStart = worldToModelM.Transform(inWorldCenterViewPos);
const Vector3f rayDir = worldToModelM.Transform(centerViewRot.Rotate(Vector3f(0.0f, 0.0f, -1.0f))) - rayStart;
const BoundingBoxInfo boundingBoxInfo = target->GetRenderData()->GetMesh()->GetBoundingBoxInfo();
float t0 = 0.0f;
float t1 = 0.0f;
bool intersected = Intersect_RayBounds(rayStart, rayDir, boundingBoxInfo.mins, boundingBoxInfo.maxs, t0, t1);
IntersectRayBoundsResult result;
result.intersected = intersected && t0 > 0;
if (intersected) {
result.first = rayStart + t0 * rayDir;
result.second = rayStart + t1 * rayDir;
if (axisInWorld) {
result.first = target->GetMatrixWorld().Transform(result.first);
result.second = target->GetMatrixWorld().Transform(result.second);
}
}
return result;
}
IntersectRayBoundsResult IntersectRayBounds(const Matrix4f ¢erViewMatrix,
const Matrix4f &targetWorldMatrix,
const GlGeometry &targetGeometry,
bool axisInWorld) {
Matrix4f worldToModelM = targetWorldMatrix.Inverted();
Matrix4f invertedCenterViewM = centerViewMatrix.Inverted();
Vector3f inWorldCenterViewPos = invertedCenterViewM.GetTranslation();
Quatf centerViewRot = Quatf(invertedCenterViewM);
const Vector3f rayStart = worldToModelM.Transform(inWorldCenterViewPos);
const Vector3f rayDir = worldToModelM.Transform(centerViewRot.Rotate(
Vector3f(0.0f, 0.0f, -1.0f))) -
rayStart;
const Vector3f boundingBoxMins = targetGeometry.localBounds.GetMins();
const Vector3f boundingBoxMaxs = targetGeometry.localBounds.GetMaxs();
float t0 = 0.0f;
float t1 = 0.0f;
bool intersected = Intersect_RayBounds(rayStart, rayDir, boundingBoxMins,
boundingBoxMaxs, t0, t1);
IntersectRayBoundsResult result;
result.intersected = intersected && t0 > 0;
if (intersected) {
result.first = rayStart + t0 * rayDir;
result.second = rayStart + t1 * rayDir;
if (axisInWorld) {
result.first = targetWorldMatrix.Transform(result.first);
result.second = targetWorldMatrix.Transform(result.second);
}
}
return result;
}