From 470f814776e4e183f73e98bb6c74edb3228eb6ef Mon Sep 17 00:00:00 2001
From: ericrius1 <ericrius1>
Date: Tue, 3 Nov 2015 16:39:16 -0800
Subject: [PATCH] Fixed glitches with large particles being sorted along wrong
 axis

---
 .../src/RenderableParticleEffectEntityItem.cpp              | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp b/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp
index ddeccc141c..2d0c40ac56 100644
--- a/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableParticleEffectEntityItem.cpp
@@ -218,10 +218,10 @@ void RenderableParticleEffectEntityItem::updateRenderItem() {
 
     // build vertices from particle positions and radiuses
     glm::vec3 frustumPosition = frustum->getPosition();
+    glm::vec3 dir = frustum->getDirection();
     for (auto&& particle : particleDetails) {
-        glm::vec3 particleDirection = particle.position - frustumPosition;
-        glm::vec3 right = glm::normalize(glm::cross(glm::vec3(0.0f, 1.0f, 0.0f), particleDirection));
-        glm::vec3 up = glm::normalize(glm::cross(right, particleDirection));
+        glm::vec3 right = glm::normalize(glm::cross(glm::vec3(0.0f, 1.0f, 0.0f), dir));
+        glm::vec3 up = glm::normalize(glm::cross(right, dir));
 
         glm::vec3 upOffset = up * particle.radius;
         glm::vec3 rightOffset = right * particle.radius;