diff --git a/Assets/Scripts/Core/Fsr3UpscalerContext.cs b/Assets/Scripts/Core/Fsr3UpscalerContext.cs
index 69a603a..6b0b8f8 100644
--- a/Assets/Scripts/Core/Fsr3UpscalerContext.cs
+++ b/Assets/Scripts/Core/Fsr3UpscalerContext.cs
@@ -204,8 +204,8 @@ namespace FidelityFX
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (UpscalerConsts.renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (UpscalerConsts.renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstX = (_contextDescription.MaxUpscaleSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstY = (_contextDescription.MaxUpscaleSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchDstX = (UpscalerConsts.upscaleSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchDstY = (UpscalerConsts.upscaleSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchShadingChangePassX = ((UpscalerConsts.renderSize.x / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchShadingChangePassY = ((UpscalerConsts.renderSize.y / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
@@ -344,7 +344,7 @@ namespace FidelityFX
             }
             
             // To be updated if resource is larger than the actual image size
-            constants.downscaleFactor = new Vector2((float)constants.renderSize.x / _contextDescription.MaxUpscaleSize.x, (float)constants.renderSize.y / _contextDescription.MaxUpscaleSize.y);
+            constants.downscaleFactor = new Vector2((float)constants.renderSize.x / constants.upscaleSize.x, (float)constants.renderSize.y / constants.upscaleSize.y);
             
             // Calculate pre-exposure relevant factors
             constants.deltaPreExposure = 1.0f;
diff --git a/Assets/Scripts/Fsr3UpscalerImageEffect.cs b/Assets/Scripts/Fsr3UpscalerImageEffect.cs
index e71c873..d22a336 100644
--- a/Assets/Scripts/Fsr3UpscalerImageEffect.cs
+++ b/Assets/Scripts/Fsr3UpscalerImageEffect.cs
@@ -391,7 +391,7 @@ namespace FidelityFX
             _renderCamera.ResetProjectionMatrix();
 
             // Update the input resource descriptions
-            _dispatchDescription.UpscaleSize = new Vector2Int(src.width, src.height);
+            _dispatchDescription.UpscaleSize = new Vector2Int(_renderCamera.pixelWidth, _renderCamera.pixelHeight);
 
             _dispatchCommandBuffer.Clear();