diff --git a/leenkx/blender/lnx/write_data.py b/leenkx/blender/lnx/write_data.py
index 773dbee..77148b8 100644
--- a/leenkx/blender/lnx/write_data.py
+++ b/leenkx/blender/lnx/write_data.py
@@ -616,13 +616,28 @@ def write_compiledglsl(defs, make_variants):
                 f.write('#define GBUF_IDX_2 2\n')
                 idx_emission += 1
                 idx_refraction += 1
+                
+            # Special case for WebGL with both TAA and SSRefraction
+            webgl_with_taa_refr = ('_kha_webgl' in wrd.world_defs and 
+                                 ('_SSRefraction' in wrd.world_defs or '_VoxelRefract' in wrd.world_defs) and 
+                                 ('_TAA' in wrd.world_defs or '_SMAA' in wrd.world_defs))
+            
+            if webgl_with_taa_refr:
+                # WebGL needs refraction to come before emission for correct rendering
+                if '_SSRefraction' in wrd.world_defs or '_VoxelRefract' in wrd.world_defs:
+                    f.write(f'#define GBUF_IDX_REFRACTION {idx_emission}\n')
+                    idx_emission += 1
+                
+                if '_EmissionShaded' in wrd.world_defs:
+                    f.write(f'#define GBUF_IDX_EMISSION {idx_emission}\n')
+            else:
+                # Standard order for all other platforms
+                if '_EmissionShaded' in wrd.world_defs:
+                    f.write(f'#define GBUF_IDX_EMISSION {idx_emission}\n')
+                    idx_refraction += 1
 
-            if '_EmissionShaded' in wrd.world_defs:
-                f.write(f'#define GBUF_IDX_EMISSION {idx_emission}\n')
-                idx_refraction += 1
-
-            if '_SSRefraction' in wrd.world_defs or '_VoxelRefract' in wrd.world_defs:
-                f.write(f'#define GBUF_IDX_REFRACTION {idx_refraction}\n')
+                if '_SSRefraction' in wrd.world_defs or '_VoxelRefract' in wrd.world_defs:
+                    f.write(f'#define GBUF_IDX_REFRACTION {idx_refraction}\n')
 
         f.write("""#if defined(HLSL) || defined(METAL)
 #define _InvY