diff --git a/src/materialsystem/stdshaders/screenspace_general.cpp b/src/materialsystem/stdshaders/screenspace_general.cpp
index ece1b9d58e1..fd853e5cbc8 100644
--- a/src/materialsystem/stdshaders/screenspace_general.cpp
+++ b/src/materialsystem/stdshaders/screenspace_general.cpp
@@ -245,7 +245,9 @@ BEGIN_VS_SHADER_FLAGS( screenspace_general_dx9, "Help for screenspace_general",
 				BindTexture( SHADER_SAMPLER0, BASETEXTURE, -1 );
 
 				ITexture *pTarget = params[ BASETEXTURE ]->GetTextureValue();
-				float vPixelSize[4] = { 1.0f / pTarget->GetActualWidth(), 1.0f / pTarget->GetActualHeight(), 0.0f, 0.0f };
+				int nWidth = pTexture->GetActualWidth();
+				int nHeight = pTexture->GetActualHeight();
+				float vPixelSize[4] = { 1.0f / nWidth, 1.0f / nHeight, nWidth, nHeight };
 				pShaderAPI->SetPixelShaderConstant( 4, vPixelSize, 1 );
 			}
 
@@ -254,7 +256,9 @@ BEGIN_VS_SHADER_FLAGS( screenspace_general_dx9, "Help for screenspace_general",
 				BindTexture( SHADER_SAMPLER1, TEXTURE1, -1 );
 
 				ITexture *pTarget = params[ TEXTURE1 ]->GetTextureValue();
-				float vPixelSize[4] = { 1.0f / pTarget->GetActualWidth(), 1.0f / pTarget->GetActualHeight(), 0.0f, 0.0f };
+				int nWidth = pTexture->GetActualWidth();
+				int nHeight = pTexture->GetActualHeight();
+				float vPixelSize[4] = { 1.0f / nWidth, 1.0f / nHeight, nWidth, nHeight };
 				pShaderAPI->SetPixelShaderConstant( 5, vPixelSize, 1 );
 			}
 
@@ -263,7 +267,9 @@ BEGIN_VS_SHADER_FLAGS( screenspace_general_dx9, "Help for screenspace_general",
 				BindTexture( SHADER_SAMPLER2, TEXTURE2, -1 );
 
 				ITexture *pTarget = params[ TEXTURE2 ]->GetTextureValue();
-				float vPixelSize[4] = { 1.0f / pTarget->GetActualWidth(), 1.0f / pTarget->GetActualHeight(), 0.0f, 0.0f };
+				int nWidth = pTexture->GetActualWidth();
+				int nHeight = pTexture->GetActualHeight();
+				float vPixelSize[4] = { 1.0f / nWidth, 1.0f / nHeight, nWidth, nHeight };
 				pShaderAPI->SetPixelShaderConstant( 6, vPixelSize, 1 );
 			}
 
@@ -272,7 +278,9 @@ BEGIN_VS_SHADER_FLAGS( screenspace_general_dx9, "Help for screenspace_general",
 				BindTexture( SHADER_SAMPLER3, TEXTURE3, -1 );
 
 				ITexture *pTarget = params[ TEXTURE3 ]->GetTextureValue();
-				float vPixelSize[4] = { 1.0f / pTarget->GetActualWidth(), 1.0f / pTarget->GetActualHeight(), 0.0f, 0.0f };
+				int nWidth = pTexture->GetActualWidth();
+				int nHeight = pTexture->GetActualHeight();
+				float vPixelSize[4] = { 1.0f / nWidth, 1.0f / nHeight, nWidth, nHeight };
 				pShaderAPI->SetPixelShaderConstant( 7, vPixelSize, 1 );
 			}