diff --git a/src/renderer/wg_engine/tvgWgRenderTarget.cpp b/src/renderer/wg_engine/tvgWgRenderTarget.cpp
index e6124b9f..28742c80 100644
--- a/src/renderer/wg_engine/tvgWgRenderTarget.cpp
+++ b/src/renderer/wg_engine/tvgWgRenderTarget.cpp
@@ -323,7 +323,7 @@ void WgRenderStorage::endComputePass(WGPUComputePassEncoder computePassEncoder)
 // render storage pool
 //*****************************************************************************
 
-WgRenderStorage* WgRenderStoragePool::allocate(WgContext& context, uint32_t w, uint32_t h)
+WgRenderStorage* WgRenderStoragePool::allocate(WgContext& context, uint32_t w, uint32_t h, uint32_t samples)
 {
    WgRenderStorage* renderStorage{};
    if (mPool.count > 0) {
@@ -331,7 +331,7 @@ WgRenderStorage* WgRenderStoragePool::allocate(WgContext& context, uint32_t w, u
       mPool.pop();
    } else {
       renderStorage = new WgRenderStorage;
-      renderStorage->initialize(context, w, h);
+      renderStorage->initialize(context, w, h, samples);
       mList.push(renderStorage);
    }
    return renderStorage;
diff --git a/src/renderer/wg_engine/tvgWgRenderTarget.h b/src/renderer/wg_engine/tvgWgRenderTarget.h
index be1ef110..7d3d1016 100644
--- a/src/renderer/wg_engine/tvgWgRenderTarget.h
+++ b/src/renderer/wg_engine/tvgWgRenderTarget.h
@@ -81,7 +81,7 @@ private:
    Array<WgRenderStorage*> mList;
    Array<WgRenderStorage*> mPool;
 public:
-   WgRenderStorage* allocate(WgContext& context, uint32_t w, uint32_t h);
+   WgRenderStorage* allocate(WgContext& context, uint32_t w, uint32_t h, uint32_t samples = 1);
    void free(WgContext& context, WgRenderStorage* renderTarget);
    void release(WgContext& context);
 };
diff --git a/src/renderer/wg_engine/tvgWgRenderer.cpp b/src/renderer/wg_engine/tvgWgRenderer.cpp
index 5a262c13..44517423 100644
--- a/src/renderer/wg_engine/tvgWgRenderer.cpp
+++ b/src/renderer/wg_engine/tvgWgRenderer.cpp
@@ -300,7 +300,7 @@ bool WgRenderer::target(uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t
     mTargetSurface.w = w;
     mTargetSurface.h = h;
 
-    mRenderTarget.initialize(mContext, w * WG_SSAA_SAMPLES, h * WG_SSAA_SAMPLES);
+    mRenderTarget.initialize(mContext, w, h, WG_SSAA_SAMPLES);
     return true;
 }
 
@@ -354,7 +354,7 @@ bool WgRenderer::beginComposite(TVG_UNUSED Compositor* cmp, TVG_UNUSED Composite
     // end current render pass
     mRenderStorageStack.last()->endRenderPass();
     // allocate new render storage and push it to top of render tree
-    WgRenderStorage* renderStorage = mRenderStoragePool.allocate(mContext, mTargetSurface.w * WG_SSAA_SAMPLES, mTargetSurface.h * WG_SSAA_SAMPLES);
+    WgRenderStorage* renderStorage = mRenderStoragePool.allocate(mContext, mTargetSurface.w, mTargetSurface.h, WG_SSAA_SAMPLES);
     mRenderStorageStack.push(renderStorage);
     // begin last render pass
     mRenderStorageStack.last()->beginRenderPass(mCommandEncoder, true);