diff --git a/lib/graphicsdev/D3D11.cpp b/lib/graphicsdev/D3D11.cpp
index 35f8d9f..a7afbcf 100644
--- a/lib/graphicsdev/D3D11.cpp
+++ b/lib/graphicsdev/D3D11.cpp
@@ -616,9 +616,9 @@ class D3D11ShaderPipeline : public GraphicsDataNode<IShaderPipeline>
         blDesc.RenderTarget[0].BlendEnable = (dstFac != BlendFactor::Zero);
         if (srcFac == BlendFactor::Subtract || dstFac == BlendFactor::Subtract)
         {
-            blDesc.RenderTarget[0].SrcBlend = D3D11_BLEND_DEST_COLOR;
-            blDesc.RenderTarget[0].DestBlend = D3D11_BLEND_SRC_COLOR;
-            blDesc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_SUBTRACT;
+            blDesc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
+            blDesc.RenderTarget[0].DestBlend = D3D11_BLEND_ONE;
+            blDesc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_REV_SUBTRACT;
         }
         else
         {
diff --git a/lib/graphicsdev/D3D12.cpp b/lib/graphicsdev/D3D12.cpp
index 010f61a..2460725 100644
--- a/lib/graphicsdev/D3D12.cpp
+++ b/lib/graphicsdev/D3D12.cpp
@@ -748,9 +748,9 @@ class D3D12ShaderPipeline : public GraphicsDataNode<IShaderPipeline>
             desc.BlendState.RenderTarget[0].BlendEnable = true;
             if (srcFac == BlendFactor::Subtract || dstFac == BlendFactor::Subtract)
             {
-                desc.BlendState.RenderTarget[0].SrcBlend = D3D12_BLEND_DEST_COLOR;
-                desc.BlendState.RenderTarget[0].DestBlend = D3D12_BLEND_SRC_COLOR;
-                desc.BlendState.RenderTarget[0].BlendOp = D3D12_BLEND_OP_SUBTRACT;
+                desc.BlendState.RenderTarget[0].SrcBlend = D3D12_BLEND_SRC_ALPHA;
+                desc.BlendState.RenderTarget[0].DestBlend = D3D12_BLEND_ONE;
+                desc.BlendState.RenderTarget[0].BlendOp = D3D12_BLEND_OP_REV_SUBTRACT;
             }
             else
             {
diff --git a/lib/graphicsdev/GL.cpp b/lib/graphicsdev/GL.cpp
index 117b964..a87bc70 100644
--- a/lib/graphicsdev/GL.cpp
+++ b/lib/graphicsdev/GL.cpp
@@ -741,7 +741,7 @@ public:
             glEnable(GL_BLEND);
             glBlendFuncSeparate(m_sfactor, m_dfactor, GL_ONE, GL_ZERO);
             if (m_subtractBlend)
-                glBlendEquation(GL_FUNC_SUBTRACT);
+                glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
             else
                 glBlendEquation(GL_FUNC_ADD);
         }
@@ -904,8 +904,8 @@ ObjToken<IShaderPipeline> GLDataFactory::Context::newShaderPipeline
 
     if (srcFac == BlendFactor::Subtract || dstFac == BlendFactor::Subtract)
     {
-        shader.m_sfactor = GL_DST_COLOR;
-        shader.m_dfactor = GL_SRC_COLOR;
+        shader.m_sfactor = GL_SRC_ALPHA;
+        shader.m_dfactor = GL_ONE;
         shader.m_subtractBlend = true;
     }
     else
diff --git a/lib/graphicsdev/Metal.mm b/lib/graphicsdev/Metal.mm
index 682bd41..a110323 100644
--- a/lib/graphicsdev/Metal.mm
+++ b/lib/graphicsdev/Metal.mm
@@ -909,9 +909,9 @@ class MetalShaderPipeline : public GraphicsDataNode<IShaderPipeline>
         desc.colorAttachments[0].blendingEnabled = dstFac != BlendFactor::Zero;
         if (srcFac == BlendFactor::Subtract || dstFac == BlendFactor::Subtract)
         {
-            desc.colorAttachments[0].sourceRGBBlendFactor = MTLBlendFactorDestinationColor;
-            desc.colorAttachments[0].destinationRGBBlendFactor = MTLBlendFactorSourceColor;
-            desc.colorAttachments[0].rgbBlendOperation = MTLBlendOperationSubtract;
+            desc.colorAttachments[0].sourceRGBBlendFactor = MTLBlendFactorSourceAlpha;
+            desc.colorAttachments[0].destinationRGBBlendFactor = MTLBlendFactorOne;
+            desc.colorAttachments[0].rgbBlendOperation = MTLBlendOperationReverseSubtract;
         }
         else
         {
diff --git a/lib/graphicsdev/Vulkan.cpp b/lib/graphicsdev/Vulkan.cpp
index f4bd0ff..e1d56ad 100644
--- a/lib/graphicsdev/Vulkan.cpp
+++ b/lib/graphicsdev/Vulkan.cpp
@@ -2305,9 +2305,9 @@ public:
             colorAttachment.blendEnable = m_dstFac != BlendFactor::Zero;
             if (m_srcFac == BlendFactor::Subtract || m_dstFac == BlendFactor::Subtract)
             {
-                colorAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_DST_COLOR;
-                colorAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_SRC_COLOR;
-                colorAttachment.colorBlendOp = VK_BLEND_OP_SUBTRACT;
+                colorAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
+                colorAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
+                colorAttachment.colorBlendOp = VK_BLEND_OP_REVERSE_SUBTRACT;
             }
             else
             {