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#168 Grid box side visibility now handles parallel projection

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This commit is contained in:
Jacob Støren 2016-08-15 08:48:37 +02:00
parent 5cdf307d4e
commit 742ee46f78
1 changed files with 15 additions and 3 deletions
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18
ApplicationCode/ModelVisualization/GridBox/RivGridBoxGenerator.cpp
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@ -135,12 +135,24 @@ void RivGridBoxGenerator::updateFromCamera(const cvf::Camera* camera)
std::vector<bool> faceVisibility(6, false);
for (size_t i = POS_X; i <= NEG_Z; i++)
{
bool isFaceVisible = false;
cvf::Vec3f sideNorm = sideNormalOutwards((FaceType)i);
cvf::Vec3d camToSide = camera->position() - pointOnSide((FaceType)i);
camToSide.normalize();
if (camera->projection() == cvf::Camera::PERSPECTIVE)
{
if (sideNorm.dot(cvf::Vec3f(camToSide)) < 0.0)
cvf::Vec3d camToSide = camera->position() - pointOnSide((FaceType)i);
camToSide.normalize();
isFaceVisible = sideNorm.dot(cvf::Vec3f(camToSide)) < 0.0;
}
else
{
cvf::Vec3d camToSide = camera->direction();
isFaceVisible = sideNorm.dot(cvf::Vec3f(camToSide)) > 0.0;
}
if (isFaceVisible)
{
m_gridBoxModel->addPart(m_gridBoxFaceParts[i].p());
faceVisibility[i] = true;