From 6cf0d0782badc2123b540ace94cc3234b9c462f7 Mon Sep 17 00:00:00 2001
From: papadanku <pauldang2@gmail.com>
Date: Sun, 24 Dec 2023 12:07:44 -0700
Subject: [PATCH] Update cOpticalFlow.fx

---
 shaders/cOpticalFlow.fx | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/shaders/cOpticalFlow.fx b/shaders/cOpticalFlow.fx
index 6ae86f4..3c64b40 100644
--- a/shaders/cOpticalFlow.fx
+++ b/shaders/cOpticalFlow.fx
@@ -55,6 +55,11 @@ namespace cOpticalFlow
         #define VERTEX_SPACING 10
     #endif
 
+
+    #ifndef RENDER_OVER_BUFFER
+        #define RENDER_OVER_BUFFER 1
+    #endif
+
     #define LINES_X uint(BUFFER_WIDTH / VERTEX_SPACING)
     #define LINES_Y uint(BUFFER_HEIGHT / VERTEX_SPACING)
     #define NUM_LINES (LINES_X * LINES_Y)
@@ -68,7 +73,6 @@ namespace cOpticalFlow
 
     CREATE_SAMPLER(SampleTempTex1, TempTex1_RG8, LINEAR, MIRROR)
     CREATE_SAMPLER(SampleTempTex2b, TempTex2b_RG16F, LINEAR, MIRROR)
-    CREATE_SAMPLER(SampleTempTex0, TempTex0_RGB10A2, LINEAR, CLAMP)
 
     struct VS2PS_Streaming
     {
@@ -218,11 +222,6 @@ namespace cOpticalFlow
         return float4(Display, 1.0);
     }
 
-    float4 PS_Composite(VS2PS_Quad Input) : SV_TARGET0
-    {
-        return tex2D(SampleTempTex0, Input.Tex0);
-    }
-
     #define CREATE_PASS(VERTEX_SHADER, PIXEL_SHADER, RENDER_TARGET) \
         pass \
         { \
@@ -280,19 +279,14 @@ namespace cOpticalFlow
                 VertexCount = NUM_LINES * 2;
                 VertexShader = VS_Streaming;
                 PixelShader = PS_Streaming;
-                ClearRenderTargets = TRUE;
+                ClearRenderTargets = bool(1 - RENDER_OVER_BUFFER);
                 BlendEnable = TRUE;
                 BlendOp = ADD;
                 SrcBlend = SRCALPHA;
                 DestBlend = INVSRCALPHA;
-                RenderTarget0 = TempTex0_RGB10A2;
             }
 
-            pass
-            {
-                VertexShader = VS_Quad;
-                PixelShader = PS_Composite;
-            }
+         
         #else
             pass
             {