X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=motion_search.frag;h=188f5c3da22b73361a810d382cd8d83cbdab0433;hb=d6cb36dd1f71c55cb70baf8cafd71bad5e48a96d;hp=769038977bd97b5724e70716e8e4770dc33c7f9d;hpb=1ed10162dcc208c0f95da7f203f51be6ccea0900;p=nageru

diff --git a/motion_search.frag b/motion_search.frag
index 7690389..188f5c3 100644
--- a/motion_search.frag
+++ b/motion_search.frag
@@ -90,16 +90,8 @@ void main()
 
 	mat2 H_inv = inverse(H);
 
-	// Fetch the initial guess for the flow. (We need the normalization step
-	// because densification works by accumulating; see the comments on the
-	// Densify class.)
-	vec3 prev_flow = texture(flow_tex, flow_tc).xyz;
-	vec2 initial_u;
-	if (prev_flow.z < 1e-3) {
-		initial_u = vec2(0.0, 0.0);
-	} else {
-		initial_u = prev_flow.xy / prev_flow.z;
-	}
+	// Fetch the initial guess for the flow.
+	vec2 initial_u = texture(flow_tex, flow_tc).xy;
 
 	// Note: The flow is in OpenGL coordinates [0..1], but the calculations
 	// generally come out in pixels since the gradient is in pixels,