Render to Texture and Backbuffer in single pass

reference wrote: // The following pixel shader simply returns the color of the games output again without modifying it (via the "color" output parameter):

void ExamplePS0(float4 pos : SV_Position, float2 texcoord : TEXCOORD0, out float4 color : SV_Target)
{
    color = tex2D(samplerColor, texcoord);
}

kingeric1992 wrote: For a shader, you don't have the "in" , the color in the texture before even sampling in the shader, for the argument "inout".
And reshade doesn't take "in" for the shader besides Semantics.

The alternative is to use it in function then load it to shader.

As shown in the reference, you can still have your 2-lines shader with some arrangement.

reference wrote: // The following pixel shader simply returns the color of the games output again without modifying it (via the "color" output parameter):

void ExamplePS0(float4 pos : SV_Position, float2 texcoord : TEXCOORD0, out float4 color : SV_Target)
{
    color = tex2D(samplerColor, texcoord);
}

To have multiple output texture, you can specify multiple render target, the implement detail is in the reference.

crosire wrote: It is not currently possible. The backbuffer is unbound as soon as a custom rendertarget is bound.