本文整理汇总了C++中AACube::getVertexN方法的典型用法代码示例。如果您正苦于以下问题：C++ AACube::getVertexN方法的具体用法？C++ AACube::getVertexN怎么用？C++ AACube::getVertexN使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AACube的用法示例。
在下文中一共展示了AACube::getVertexN方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: cubeInFrustum
ViewFrustum::location ViewFrustum::cubeInFrustum(const AACube& cube) const {
ViewFrustum::location regularResult = INSIDE;
ViewFrustum::location keyholeResult = OUTSIDE;
// If we have a keyholeRadius, check that first, since it's cheaper
if (_keyholeRadius >= 0.0f) {
keyholeResult = cubeInKeyhole(cube);
}
if (keyholeResult == INSIDE) {
return keyholeResult;
}
// TODO: These calculations are expensive, taking up 80% of our time in this function.
// This appears to be expensive because we have to test the distance to each plane.
// One suggested optimization is to first check against the approximated cone. We might
// also be able to test against the cone to the bounding sphere of the box.
for(int i=0; i < 6; i++) {
const glm::vec3& normal = _planes[i].getNormal();
const glm::vec3& boxVertexP = cube.getVertexP(normal);
float planeToBoxVertexPDistance = _planes[i].distance(boxVertexP);
const glm::vec3& boxVertexN = cube.getVertexN(normal);
float planeToBoxVertexNDistance = _planes[i].distance(boxVertexN);
if (planeToBoxVertexPDistance < 0) {
// This is outside the regular frustum, so just return the value from checking the keyhole
return keyholeResult;
} else if (planeToBoxVertexNDistance < 0) {
regularResult = INTERSECT;
}
}
return regularResult;
}