flip shader fix

jerzakm · Feb 2, 2024 · 5ef119f · 5ef119f
1 parent 2de01f0
commit 5ef119f
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diff --git a/.changeset/quiet-jobs-end.md b/.changeset/quiet-jobs-end.md
@@ -0,0 +1,5 @@
+---
+"@threejs-kit/instanced-sprite-mesh": patch
+---
+
+shader fix for flip
diff --git a/packages/instanced-sprite-mesh/src/material.ts b/packages/instanced-sprite-mesh/src/material.ts
@@ -161,10 +161,11 @@ export const constructSpriteMaterial = (
 
       vec2 transformedPlaneUv = vUv + vec2(0.,0.);
 
-      if(flipX == 1.){
+      // todo  == 1. caused a flickering bug. look into Precision/interpolation?
+      if(flipX > 0.){
         transformedPlaneUv.x = 1. - transformedPlaneUv.x;
       }
-      if(flipY == 1.){
+      if(flipY > 0.){
         transformedPlaneUv.y = 1. - transformedPlaneUv.y;
       }