diff --git a/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/frag.glsl b/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/frag.glsl
index 646d5dfd7d..16818b98ef 100644
--- a/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/frag.glsl
+++ b/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/frag.glsl
@@ -32,7 +32,8 @@ uniform vec4 fogColor;
 
 in vec4 Color;
 centroid in float fHsl;
-in vec4 fUv;
+flat in int textureId;
+in vec2 fUv;
 in float fogAmount;
 
 out vec4 FragColor;
@@ -40,20 +41,17 @@ out vec4 FragColor;
 #include hsl_to_rgb.glsl
 
 void main() {
-  float n = fUv.x;
-
   int hsl = int(fHsl);
   vec3 rgb = hslToRgb(hsl) * smoothBanding + Color.rgb * (1.f - smoothBanding);
   vec4 smoothColor = vec4(rgb, Color.a);
 
-  if (n > 0.0) {
-    n -= 1.0;
-    int textureIdx = int(n);
+  if (textureId > 0) {
+    int textureIdx = textureId - 1;
 
-    vec2 uv = fUv.yz;
+    vec2 uv = fUv;
     vec2 animatedUv = uv + textureOffsets[textureIdx];
 
-    vec4 textureColor = texture(textures, vec3(animatedUv, n));
+    vec4 textureColor = texture(textures, vec3(animatedUv, float(textureIdx)));
     vec4 textureColorBrightness = pow(textureColor, vec4(brightness, brightness, brightness, 1.0f));
 
     smoothColor = textureColorBrightness * smoothColor;
diff --git a/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/vert.glsl b/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/vert.glsl
index ef2080d8d7..0f1a626259 100644
--- a/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/vert.glsl
+++ b/runelite-client/src/main/resources/net/runelite/client/plugins/gpu/vert.glsl
@@ -55,7 +55,8 @@ uniform mat4 projectionMatrix;
 
 out vec4 Color;
 centroid out float fHsl;
-out vec4 fUv;
+flat out int textureId;
+out vec2 fUv;
 out float fogAmount;
 
 #include hsl_to_rgb.glsl
@@ -76,7 +77,8 @@ void main()
   gl_Position = projectionMatrix * vec4(vertex, 1.f);
   Color = vec4(rgb, 1.f - a);
   fHsl = float(hsl);
-  fUv = uv;
+  textureId = int(uv.x);
+  fUv = uv.yz;
 
   int fogWest = max(FOG_SCENE_EDGE_MIN, cameraX - drawDistance);
   int fogEast = min(FOG_SCENE_EDGE_MAX, cameraX + drawDistance - TILE_SIZE);