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fix zones using FBX models with non-trivial mesh.modelTransform

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This commit is contained in:
Andrew Meadows 2019-01-15 09:17:48 -08:00
parent 6499c4f0ea
commit 4771fa5f27
1 changed files with 3 additions and 1 deletions
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4
libraries/hfm/src/hfm/HFM.cpp
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@ -205,6 +205,8 @@ bool HFMModel::convexHullContains(const glm::vec3& point) const {
auto checkEachPrimitive = [=](HFMMesh& mesh, QVector<int> indices, int primitiveSize) -> bool {
// Check whether the point is "behind" all the primitives.
// But first must transform from model-frame into mesh-frame
glm::vec3 transformedPoint = glm::vec3(glm::inverse(mesh.modelTransform) * glm::vec4(point, 1.0f));
int verticesSize = mesh.vertices.size();
for (int j = 0;
j < indices.size() - 2; // -2 in case the vertices aren't the right size -- we access j + 2 below
@ -212,7 +214,7 @@ bool HFMModel::convexHullContains(const glm::vec3& point) const {
if (indices[j] < verticesSize &&
indices[j + 1] < verticesSize &&
indices[j + 2] < verticesSize &&
!isPointBehindTrianglesPlane(point,
!isPointBehindTrianglesPlane(transformedPoint,
mesh.vertices[indices[j]],
mesh.vertices[indices[j + 1]],
mesh.vertices[indices[j + 2]])) {