fix: alpha does not work properly on Android

homuler · Aug 4, 2024 · f8071e2 · f8071e2
1 parent b9a336c
commit f8071e2
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/Packages/com.github.homuler.mediapipe/PackageResources/Shaders/MaskShader.shader b/Packages/com.github.homuler.mediapipe/PackageResources/Shaders/MaskShader.shader
@@ -12,6 +12,8 @@ Shader "Unlit/MediaPipe/Mask Shader"
     SubShader
     {
         Tags { "RenderType"="Transparent" }
+        ZWrite Off
+        Blend SrcAlpha OneMinusSrcAlpha
         LOD 100
 
         Pass

diff --git a/Packages/com.github.homuler.mediapipe/PackageResources/Shaders/OverlayMask.shader b/Packages/com.github.homuler.mediapipe/PackageResources/Shaders/OverlayMask.shader
@@ -65,7 +65,7 @@ Shader "Unlit/MediaPipe/Overlay Mask Shader"
                 fixed4 maskCol = tex2D(_MaskTex, i.uv);
                 int idx = int(i.uv.y * _Height) * _Width + int(i.uv.x * _Width);
                 float mask = _MaskBuffer[idx];
-                maskCol.a = mask;
+                maskCol.a = lerp(0.0, mask, step(_Threshold, mask));
                 fixed4 col = lerp(emptyCol, maskCol, step(_Threshold, mask));
 
                 // apply fog