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0030440: Visualization - Graphic3d_Camera::Frustum() returns wrong planes in portrait mode

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Graphic3d_Camera::Frustum() now handles window Aspect Ratio < 1.0.
This commit is contained in:
kgv 2019-05-23 12:02:29 +03:00 committed by bugmaster
parent 0ef04197f7
commit a4d594cbda
1 changed files with 11 additions and 2 deletions
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13
src/Graphic3d/Graphic3d_Camera.cxx
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@ -696,8 +696,17 @@ void Graphic3d_Camera::Frustum (gp_Pln& theLeft,
theNear = gp_Pln (Eye().Translated (aProjection * ZNear()), aProjection);
theFar = gp_Pln (Eye().Translated (aProjection * ZFar()), -aProjection);
Standard_Real aHScaleHor = Scale() * 0.5 * Aspect();
Standard_Real aHScaleVer = Scale() * 0.5;
Standard_Real aHScaleHor = 0.0, aHScaleVer = 0.0;
if (Aspect() >= 1.0)
{
aHScaleHor = Scale() * 0.5 * Aspect();
aHScaleVer = Scale() * 0.5;
}
else
{
aHScaleHor = Scale() * 0.5;
aHScaleVer = Scale() * 0.5 / Aspect();
}
gp_Pnt aPntLeft = Center().Translated (aHScaleHor * -aSide);
gp_Pnt aPntRight = Center().Translated (aHScaleHor * aSide);