From 0ec3e573cf52b7790b82f3ad9185d5b97f18355b Mon Sep 17 00:00:00 2001
From: elom0n <74347790+elom0n@users.noreply.github.com>
Date: Thu, 21 Jul 2022 21:59:29 +0200
Subject: [PATCH] fix trail bug
---
projects/fire_works/shaders/trail.geom | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/projects/fire_works/shaders/trail.geom b/projects/fire_works/shaders/trail.geom
index 39ab595a..3db1cd8c 100644
--- a/projects/fire_works/shaders/trail.geom
+++ b/projects/fire_works/shaders/trail.geom
@@ -43,11 +43,16 @@ void main() {
const uint indexOffset = (gl_InvocationID * (INSTANCE_LEN - 1));
const uint instanceIndex = startIndex + indexOffset;
-
- uint count = INSTANCE_LEN;
+
+ uint count = min(INSTANCE_LEN, useCount);
if (indexOffset + INSTANCE_LEN > useCount) {
- count = indexOffset - useCount;
+ if(indexOffset >= useCount){
+ count = indexOffset - useCount;
+ }else{
+ count = 0;
+ return;
+ }
}
if (count <= 1) {
--
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