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Remove projection offset, add the hmd head matrix. Also tidy up a few things.

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This commit is contained in:
James Urquhart 2016-05-18 00:18:02 +01:00
parent e7bafe3c7b
commit f91aa639d6
20 changed files with 126 additions and 113 deletions
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23
Engine/source/lighting/advanced/advancedLightBinManager.cpp
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@ -453,30 +453,7 @@ void AdvancedLightBinManager::_setupPerFrameParameters( const SceneRenderState *
// Perform a camera offset. We need to manually perform this offset on the sun (or vector) light's
// polygon, which is at the far plane.
const Point2F& projOffset = frustum.getProjectionOffset();
Point3F cameraOffsetPos = cameraPos;
if(!projOffset.isZero())
{
// First we need to calculate the offset at the near plane. The projOffset
// given above can be thought of a percent as it ranges from 0..1 (or 0..-1).
F32 nearOffset = frustum.getNearRight() * projOffset.x;
// Now given the near plane distance from the camera we can solve the right
// triangle and calcuate the SIN theta for the offset at the near plane.
// SIN theta = x/y
F32 sinTheta = nearOffset / frustum.getNearDist();
// Finally, we can calcuate the offset at the far plane, which is where our sun (or vector)
// light's polygon is drawn.
F32 farOffset = frustum.getFarDist() * sinTheta;
// We can now apply this far plane offset to the far plane itself, which then compensates
// for the project offset.
MatrixF camTrans = frustum.getTransform();
VectorF offset = camTrans.getRightVector();
offset *= farOffset;
cameraOffsetPos += offset;
}
// Now build the quad for drawing full-screen vector light
// passes.... this is a volatile VB and updates every frame.