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Added bounding box check to light rubber band selection.

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This commit is contained in:
Leonardo Zide
2025-05-24 14:30:48 -07:00
parent f3f76d2ffe
commit 316882d47c
1 changed files with 57 additions and 9 deletions
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common/light.cpp
+57 -9
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@@ -399,22 +399,70 @@ void lcLight::BoxTest(lcObjectBoxTest& ObjectBoxTest) const
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
}
lcVector3 Min(-LC_LIGHT_POSITION_EDGE, -LC_LIGHT_POSITION_EDGE, -LC_LIGHT_POSITION_EDGE); // todo: fix light box test
lcVector3 Max( LC_LIGHT_POSITION_EDGE, LC_LIGHT_POSITION_EDGE, LC_LIGHT_POSITION_EDGE);
lcMatrix44 InverseWorldMatrix = lcMatrix44AffineInverse(mWorldMatrix);
lcVector4 LocalPlanes[6];
for (int PlaneIdx = 0; PlaneIdx < 6; PlaneIdx++)
for (int PlaneIndex = 0; PlaneIndex < 6; PlaneIndex++)
{
const lcVector3 Normal = lcMul30(ObjectBoxTest.Planes[PlaneIdx], mWorldMatrix);
LocalPlanes[PlaneIdx] = lcVector4(Normal, ObjectBoxTest.Planes[PlaneIdx][3] - lcDot3(mWorldMatrix[3], Normal));
const lcVector3 PlaneNormal = lcMul30(ObjectBoxTest.Planes[PlaneIndex], InverseWorldMatrix);
LocalPlanes[PlaneIndex] = lcVector4(PlaneNormal, ObjectBoxTest.Planes[PlaneIndex][3] - lcDot3(InverseWorldMatrix[3], PlaneNormal));
}
if (lcBoundingBoxIntersectsVolume(Min, Max, LocalPlanes))
// TODO: Check meshes after the bounding fox test.
if (mLightType == lcLightType::Spot)
{
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
lcVector3 Min(-LC_LIGHT_SPOT_CONE_RADIUS, -LC_LIGHT_SPOT_CONE_RADIUS, 0);
lcVector3 Max( LC_LIGHT_SPOT_CONE_RADIUS, LC_LIGHT_SPOT_CONE_RADIUS, LC_LIGHT_SPOT_CONE_HEIGHT);
if (lcBoundingBoxIntersectsVolume(Min, Max, LocalPlanes))
{
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
}
}
else if (mLightType == lcLightType::Area)
{
lcVector3 Min(-mAreaSizeX / 2.0f, -mAreaSizeY / 2.0f, 0);
lcVector3 Max( mAreaSizeX / 2.0f, mAreaSizeY / 2.0f, 0);
if (lcBoundingBoxIntersectsVolume(Min, Max, LocalPlanes))
{
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
}
}
else if (mLightType == lcLightType::Directional)
{
lcVector3 Min(-LC_LIGHT_DIRECTIONAL_RADIUS, -LC_LIGHT_DIRECTIONAL_RADIUS, 0);
lcVector3 Max( LC_LIGHT_DIRECTIONAL_RADIUS, LC_LIGHT_DIRECTIONAL_RADIUS, LC_LIGHT_DIRECTIONAL_HEIGHT);
if (lcBoundingBoxIntersectsVolume(Min, Max, LocalPlanes))
{
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
}
}
if (IsSelected())
{
lcVector3 TargetPosition = lcMul31(lcVector3(0.0f, 0.0f, -mTargetDistance), mWorldMatrix);
bool Outside = false;
for (int PlaneIdx = 0; PlaneIdx < 6; PlaneIdx++)
{
if (lcDot3(TargetPosition, ObjectBoxTest.Planes[PlaneIdx]) + ObjectBoxTest.Planes[PlaneIdx][3] > LC_LIGHT_TARGET_RADIUS)
{
Outside = true;
break;
}
}
if (!Outside)
{
ObjectBoxTest.Objects.emplace_back(const_cast<lcLight*>(this));
return;
}
}
}