diff --git a/qglview/shaders/ssr.frag b/qglview/shaders/ssr.frag
index 2668963..eea8312 100644
--- a/qglview/shaders/ssr.frag
+++ b/qglview/shaders/ssr.frag
@@ -20,12 +20,11 @@ void main(void) {
 	z = ((_pe - 2.) * z_near) / (z + _pe - 1.); // infinite depth
 	pos.w = 1;
 	pos.xyz = view_dir * z;
-	//pos.z = -pos.z;
+	pos.z = -pos.z;
 	vec4 spos = pos;
 	vec4 tpos;
 
 	vec3 dc = v0.rgb, n = v1.xyz;
-	//vec3 vd = -normalize(vec3(-view_dir.xy, view_dir.z));
 	vec3 vd = normalize(view_dir);
 	vec3 rn = reflect(vd, n);
 	//rn.z += 1.;
@@ -65,4 +64,5 @@ void main(void) {
 
 	qgl_FragData[0] = vec4(rvs.rgb, coeff / 1.1 + clamp(round(blur * 10), 0, 1000));
 	//qgl_FragData[0] = vec4(rvs.rgb, cz/5);
+	//qgl_FragData[0].rgb = vec3(tpos/10);
 }
diff --git a/qglview/shaders/ssr.vert b/qglview/shaders/ssr.vert
index 0e2d5fe..e6480fd 100644
--- a/qglview/shaders/ssr.vert
+++ b/qglview/shaders/ssr.vert
@@ -4,7 +4,7 @@ in vec3 view_corner;
 out vec3 view_dir;
 
 void main(void) {
-	view_dir = view_corner / view_corner.z;
+	view_dir = vec3(view_corner.xyz);
 	qgl_FragTexture = qgl_Texture;
 	gl_Position = qgl_ftransform();
 }