From b11715608f5d12d82ecb364b0d2dc76c24d6ab1f Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Mon, 11 May 2020 09:18:41 +0200
Subject: few fixes

---
 src/animation/FrameUpdate.cpp | 42 ++++++++++++++++++++++++++++++++++++------
 1 file changed, 36 insertions(+), 6 deletions(-)

(limited to 'src/animation/FrameUpdate.cpp')

diff --git a/src/animation/FrameUpdate.cpp b/src/animation/FrameUpdate.cpp
index a1121282..8697e7c6 100644
--- a/src/animation/FrameUpdate.cpp
+++ b/src/animation/FrameUpdate.cpp
@@ -47,7 +47,12 @@ FrameUpdateCallBackNonSkinned(AnimBlendFrameData *frame, void *arg)
 			(*node)->Update(vec, q, 1.0f-totalBlendAmount);
 			if((*node)->sequence->HasTranslation())
 				pos += vec;
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 		}
 		++*node;
 	}
@@ -101,7 +106,12 @@ FrameUpdateCallBackWithVelocityExtractionNonSkinned(AnimBlendFrameData *frame, v
 	for(node = updateData->nodes; *node; node++){
 		if((*node)->sequence){
 			bool nodelooped = (*node)->Update(vec, q, 1.0f-totalBlendAmount);
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 			if((*node)->sequence->HasTranslation()){
 				pos += vec;
 				if((*node)->association->HasTranslation()){
@@ -179,7 +189,12 @@ FrameUpdateCallBackWith3dVelocityExtractionNonSkinned(AnimBlendFrameData *frame,
 	for(node = updateData->nodes; *node; node++){
 		if((*node)->sequence){
 			bool nodelooped = (*node)->Update(vec, q, 1.0f-totalBlendAmount);
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 			if((*node)->sequence->HasTranslation()){
 				pos += vec;
 				if((*node)->association->HasTranslation()){
@@ -243,7 +258,12 @@ FrameUpdateCallBackSkinned(AnimBlendFrameData *frame, void *arg)
 			(*node)->Update(vec, q, 1.0f-totalBlendAmount);
 			if((*node)->sequence->HasTranslation())
 				pos += vec;
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 		}
 		++*node;
 	}
@@ -298,7 +318,12 @@ FrameUpdateCallBackWithVelocityExtractionSkinned(AnimBlendFrameData *frame, void
 	for(node = updateData->nodes; *node; node++){
 		if((*node)->sequence){
 			bool nodelooped = (*node)->Update(vec, q, 1.0f-totalBlendAmount);
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 			if((*node)->sequence->HasTranslation()){
 				pos += vec;
 				if((*node)->association->HasTranslation()){
@@ -376,7 +401,12 @@ FrameUpdateCallBackWith3dVelocityExtractionSkinned(AnimBlendFrameData *frame, vo
 	for(node = updateData->nodes; *node; node++){
 		if((*node)->sequence){
 			bool nodelooped = (*node)->Update(vec, q, 1.0f-totalBlendAmount);
-			rot += q;
+#ifdef FIX_BUGS
+			if(DotProduct(rot, q) < 0.0f)
+				rot -= q;
+			else
+#endif
+				rot += q;
 			if((*node)->sequence->HasTranslation()){
 				pos += vec;
 				if((*node)->association->HasTranslation()){
-- 
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