From 54f789f2264e7756d85af749b1fea68541ec88b4 Mon Sep 17 00:00:00 2001
From: Turanszki Janos <turanszkij@gmail.com>
Date: Thu, 24 Jun 2021 23:55:30 +0200
Subject: [PATCH] lens flare fix

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

diff --git a/WickedEngine/wiRenderer.cpp b/WickedEngine/wiRenderer.cpp
index 4954d4dc3..cc016edba 100644
--- a/WickedEngine/wiRenderer.cpp
+++ b/WickedEngine/wiRenderer.cpp
@@ -4613,10 +4613,10 @@ void DrawLensFlares(
 			if (light.GetType() == LightComponent::DIRECTIONAL)
 			{
 				// directional light flare will be placed at infinite position along direction vector:
-				XMVECTOR D = XMVector3Normalize(-XMVector3Transform(XMVectorSet(0, -vis.camera->zFarP, 0, 0), XMMatrixRotationQuaternion(XMLoadFloat4(&light.rotation))));
-				if (XMVectorGetX(XMVector3Dot(D, XMVectorSet(0, 1, 0, 0))) < 0)
+				XMVECTOR D = XMVector3Normalize(-XMVector3Transform(XMVectorSet(0, 1, 0, 1), XMMatrixRotationQuaternion(XMLoadFloat4(&light.rotation))));
+				if (XMVectorGetX(XMVector3Dot(D, XMVectorSet(0, -1, 0, 0))) < 0)
 					continue; // sun below horizon, skip lensflare
-				POS = vis.camera->GetEye() + D;
+				POS = vis.camera->GetEye() + D * -vis.camera->zFarP;
 			}
 			else
 			{