ogl_beamforming

Commit: ac6590635db5ad0b8a21586a41d7da5fc541f938
Parent: c15223ae3e74bbe7eb98c77ae5be823134b8657a
Author: Randy Palamar
Date:   Thu,  5 Sep 2024 12:50:42 -0600

uforces: focal depth should always be 0

Setting the focal depth in a (u)FORCES reconstruction doesn't make
sense since on the recieve side we are focused everywhere.

Diffstat:
M
shaders/uforces.glsl
 | 
7
+++----

1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/shaders/uforces.glsl b/shaders/uforces.glsl
@@ -96,7 +96,7 @@ void main()
 
 	vec2  starting_dist = vec2(image_point.x - xdc_min_xy.x, image_point.z);
 	float dx            = xdc_size.x / float(dec_data_dim.y);
-	float dzsign        = sign(image_point.z - focal_depth);
+	float dzsign        = sign(image_point.z);
 
 	/* NOTE: offset correcting for both pulse length and low pass filtering */
 	float time_correction = time_offset + lpf_order / sampling_frequency;
@@ -108,9 +108,8 @@ void main()
 		uint base_idx = (i - uforces) / 4;
 		uint sub_idx  = (i - uforces) % 4;
 
-		vec3  focal_point   = vec3(uforces_channels[base_idx][sub_idx] * dx + xdc_min_xy.x,
-		                           0, focal_depth);
-		float transmit_dist = focal_depth + dzsign * distance(image_point, focal_point);
+		vec3  focal_point   = vec3(uforces_channels[base_idx][sub_idx] * dx + xdc_min_xy.x, 0, 0);
+		float transmit_dist = dzsign * distance(image_point, focal_point);
 
 		vec2 rdist = starting_dist;
 		for (uint j = 0; j < dec_data_dim.y; j++) {