From 588c3d6f9bade2a15ce5b6216d668e723623b079 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barth=C3=A9lemy?=
 <31370477+BarthPaleologue@users.noreply.github.com>
Date: Fri, 29 Dec 2023 11:28:43 +0100
Subject: [PATCH] added back cheap lensflare option for more performance

---
 src/shaders/lensflare.glsl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/shaders/lensflare.glsl b/src/shaders/lensflare.glsl
index 40fbc7bcf..208a688ef 100644
--- a/src/shaders/lensflare.glsl
+++ b/src/shaders/lensflare.glsl
@@ -103,7 +103,6 @@ vec3 anflares(vec2 uv, float intensity, float stretch, float brightness)
 }
 
 
-
 void main() {
     vec4 screenColor = texture(textureSampler, vUV);
 
@@ -132,7 +131,13 @@ void main() {
     vec3 sun, sunflare, lensflare;
     vec3 flare = lensflares(uv*1.5, mouse*1.5, sunflare, lensflare);
 
+    #ifdef CHEAP_FLARE
+    vec3 anflare = pow(anflares(uv-mouse, 400.0, 0.5, 0.6), vec3(4.0));
+    anflare += smoothstep(0.0025, 1.0, anflare)*10.0;
+    anflare *= smoothstep(0.0, 1.0, anflare);
+    #else
     vec3 anflare = pow(anflares(uv-mouse, 0.5, 400.0, 0.9, 0.1), vec3(4.0));
+    #endif
 
     sun += getSun(uv-mouse) + (flare + anflare)*flareColor*2.0;