Framebuffer working; Trimap renders to FB; Refinem. use Trimap to Screen

opengl-test-two/trimap.fragmentshader

@@ -4,11 +4,11 @@
 in vec2 UV;
 
 // Ouput data
-out vec3 color;
+layout(location = 0) out vec3 color;
+//out vec3 color;
 
 // Values that stay constant for the whole mesh.
 uniform sampler2D myTextureSampler;
-uniform sampler2D myTextureSampler2;
 
 // Relative width/height of a pixel
 uniform float pixWidth;
@@ -23,7 +23,7 @@ int UNSET = -1;
 
 
 vec3 getColor(vec2 uvCoord) {
-    return texture(myTextureSampler2, uvCoord).rgb;
+    return texture(myTextureSampler, uvCoord).rgb;
 }
 
 bool isBackground(vec3 c) {
@@ -70,10 +70,10 @@ void main(){
     }
 
     if (status == IS_BACKGROUND) {
-        color = vec3(1.0f, 0.0f, 0.0f);
+        color = vec3(0.0f);
     } else if (status == IS_FOREGROUND) {
-        color = vec3(0.0f, 1.0f, 0.0f);
+        color = vec3(1.0f);
     } else {
-        color = vec3(0.0f, 0.0f, 1.0f);
+        color = vec3(0.5f);
     }
 }