From bbcc2afa61216177db5c9c2f737179537b417ae0 Mon Sep 17 00:00:00 2001
From: auria <auria@178a84e3-b1eb-0310-8ba1-8eac791a3b58>
Date: Tue, 7 Jan 2014 02:12:17 +0000
Subject: [PATCH] Use light absolute position for culling, the relative
 position was incorrectly used

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14957 178a84e3-b1eb-0310-8ba1-8eac791a3b58
---
 src/graphics/light.cpp  | 13 +++++++++++++
 src/graphics/light.hpp  |  6 ++++++
 src/graphics/render.cpp |  2 +-
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/graphics/light.cpp b/src/graphics/light.cpp
index 671fb0d99..196799f4d 100644
--- a/src/graphics/light.cpp
+++ b/src/graphics/light.cpp
@@ -42,6 +42,10 @@ LightNode::LightNode(scene::ISceneManager* mgr, scene::ISceneNode* parent, float
     m_color[0] = r;
     m_color[1] = g;
     m_color[2] = b;
+
+#ifdef __LIGHT_NODE_VISUALISATION__
+    m_viz_added = false;
+#endif
 }
 
 LightNode::~LightNode()
@@ -94,4 +98,13 @@ void LightNode::renderLightSet(const std::vector<float> &positions, const std::v
 
 void LightNode::OnRegisterSceneNode()
 { // This node is only drawn manually.
+
+#ifdef __LIGHT_NODE_VISUALISATION__
+    if (!m_viz_added)
+    {
+        scene::IMeshSceneNode* viz = irr_driver->addSphere(0.5f, video::SColor(255, m_color[0]*255, m_color[1]*255, m_color[2]*255));
+        viz->setPosition(this->getAbsolutePosition());
+        m_viz_added = true;
+    }
+#endif
 }
diff --git a/src/graphics/light.hpp b/src/graphics/light.hpp
index 05e6ee210..b6309f56e 100644
--- a/src/graphics/light.hpp
+++ b/src/graphics/light.hpp
@@ -30,9 +30,15 @@ namespace irr
     namespace scene { class IMesh; }
 }
 
+//#define __LIGHT_NODE_VISUALISATION__
+
 // The actual node
 class LightNode: public scene::ISceneNode
 {
+#ifdef __LIGHT_NODE_VISUALISATION__
+    bool m_viz_added;
+#endif
+
 public:
     LightNode(scene::ISceneManager* mgr, scene::ISceneNode* parent, float energy, float r, float g, float b);
     virtual ~LightNode();
diff --git a/src/graphics/render.cpp b/src/graphics/render.cpp
index 276a5e046..df00e8972 100644
--- a/src/graphics/render.cpp
+++ b/src/graphics/render.cpp
@@ -706,7 +706,7 @@ void IrrDriver::renderLights(const core::aabbox3df& cambox,
           m_lights[i]->render();
           continue;
         }
-        const core::vector3df &lightpos = (m_lights[i]->getPosition() - campos);
+        const core::vector3df &lightpos = (m_lights[i]->getAbsolutePosition() - campos);
         unsigned idx = (unsigned)(lightpos.getLength() / 10);
         if (idx > 14)
           continue;