From a4fc0b26b07e739348555ef936257bc25352279b Mon Sep 17 00:00:00 2001
From: ruslantproductengine <ruslantproductengine@lindenlab.com>
Date: Mon, 18 Aug 2014 15:12:16 +0300
Subject: [PATCH] MAINT-3511 FIXED When one surface of mesh object is set
transparent all object is invisible : compare rotation quaternions with
predefined epsilon
---
indra/llmath/llquaternion.h | 18 ++++++++++++++++++
indra/newview/llviewerobject.cpp | 2 +-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/indra/llmath/llquaternion.h b/indra/llmath/llquaternion.h
index e56929ed0f3..aa0b1752f4e 100755
--- a/indra/llmath/llquaternion.h
+++ b/indra/llmath/llquaternion.h
@@ -71,6 +71,9 @@ class LLQuaternion
void quantize8(F32 lower, F32 upper); // changes the vector to reflect quatization
void loadIdentity(); // Loads the quaternion that represents the identity rotation
+ bool isEqualEps(const LLQuaternion &quat, F32 epsilon) const;
+ bool isNotEqualEps(const LLQuaternion &quat, F32 epsilon) const;
+
const LLQuaternion& set(F32 x, F32 y, F32 z, F32 w); // Sets Quaternion to normalize(x, y, z, w)
const LLQuaternion& set(const LLQuaternion &quat); // Copies Quaternion
const LLQuaternion& set(const F32 *q); // Sets Quaternion to normalize(quat[VX], quat[VY], quat[VZ], quat[VW])
@@ -239,6 +242,21 @@ inline void LLQuaternion::loadIdentity()
mQ[VW] = 1.0f;
}
+inline bool LLQuaternion::isEqualEps(const LLQuaternion &quat, F32 epsilon) const
+{
+ return ( fabs(mQ[VX] - quat.mQ[VX]) < epsilon
+ && fabs(mQ[VY] - quat.mQ[VY]) < epsilon
+ && fabs(mQ[VZ] - quat.mQ[VZ]) < epsilon
+ && fabs(mQ[VS] - quat.mQ[VS]) < epsilon );
+}
+
+inline bool LLQuaternion::isNotEqualEps(const LLQuaternion &quat, F32 epsilon) const
+{
+ return ( fabs(mQ[VX] - quat.mQ[VX]) > epsilon
+ || fabs(mQ[VY] - quat.mQ[VY]) > epsilon
+ || fabs(mQ[VZ] - quat.mQ[VZ]) > epsilon
+ || fabs(mQ[VS] - quat.mQ[VS]) > epsilon );
+}
inline const LLQuaternion& LLQuaternion::set(F32 x, F32 y, F32 z, F32 w)
{
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index 97cefaf33ca..33b442815da 100755
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -2274,7 +2274,7 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
}
}
- if ((new_rot != getRotation())
+ if ((new_rot.isNotEqualEps(getRotation(), F_ALMOST_ZERO))
|| (new_angv != old_angv))
{
if (new_rot != mPreviousRotation)
--
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