From f0c0e00c1bfbd28b05f781070b5a0b6a73caf32d Mon Sep 17 00:00:00 2001
From: Ariel Molina <ariel@edis.mx>
Date: Sat, 5 Dec 2015 18:58:19 -0600
Subject: Correct heightmap values for Turbulence

Turbulence was only taking into account the red component, and it was
wrongly using the image sideways.

Change-Id: I7f50e44a198993b9ea2ac0a66c1952bf9c7e92fb
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
---
 src/particles/qquickturbulence.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/particles/qquickturbulence.cpp b/src/particles/qquickturbulence.cpp
index 11bae1107b..75f8cea8db 100644
--- a/src/particles/qquickturbulence.cpp
+++ b/src/particles/qquickturbulence.cpp
@@ -133,11 +133,11 @@ void QQuickTurbulenceAffector::initializeGrid()
 
     for (int i=0; i<m_gridSize; i++)
         for (int j=0; j<m_gridSize; j++)
-            m_field[i][j] = qRed(image.pixel(QPoint(i,j)));//Red as proxy for Value
+            m_field[i][j] = qGray(image.pixel(QPoint(i,j)));
     for (int i=0; i<m_gridSize; i++){
         for (int j=0; j<m_gridSize; j++){
-            m_vectorField[i][j].setX(boundsRespectingField(i,j) - boundsRespectingField(i,j-1));
-            m_vectorField[i][j].setY(boundsRespectingField(i-1,j) - boundsRespectingField(i,j));
+            m_vectorField[i][j].setX(boundsRespectingField(i-1,j) - boundsRespectingField(i,j));
+            m_vectorField[i][j].setY(boundsRespectingField(i,j) - boundsRespectingField(i,j-1));
         }
     }
 }
-- 
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