diff --git a/src/renderer/webgl/shaders/TilemapGPULayer-frag.js b/src/renderer/webgl/shaders/TilemapGPULayer-frag.js
index 862dfd8564..b592df4504 100644
--- a/src/renderer/webgl/shaders/TilemapGPULayer-frag.js
+++ b/src/renderer/webgl/shaders/TilemapGPULayer-frag.js
@@ -227,6 +227,10 @@ module.exports = [
     '{',
     '    vec2 layerTexCoord = outTexCoord;',
     '    Tile tile = getLayerData(layerTexCoord);',
+    '    if (tile.empty)',
+    '    {',
+    '        discard;',
+    '    }',
     '    Samples samples = getFinalSamples(tile, layerTexCoord);',
     '    vec4 fragColor = samples.color;',
     '    #pragma phaserTemplate(declareSamples)',
diff --git a/src/renderer/webgl/shaders/src/TilemapGPULayer.frag b/src/renderer/webgl/shaders/src/TilemapGPULayer.frag
index 8430963a03..4c256c39f5 100644
--- a/src/renderer/webgl/shaders/src/TilemapGPULayer.frag
+++ b/src/renderer/webgl/shaders/src/TilemapGPULayer.frag
@@ -301,6 +301,15 @@ void main ()
     vec2 layerTexCoord = outTexCoord;
     Tile tile = getLayerData(layerTexCoord);
 
+    // Empty cells must not draw anything. Without this, empty tiles sample the
+    // tileset at (0, 0) - the top-left texel of tile 0 - which is opaque for
+    // most tilesets, painting tile 0 over everything drawn beneath the layer
+    // (and causing stacked GPU layers to hide one another).
+    if (tile.empty)
+    {
+        discard;
+    }
+
     Samples samples = getFinalSamples(tile, layerTexCoord);
 
     vec4 fragColor = samples.color;