ogl_beamforming

Commit: 08ae5096059b40df1fa72e85f3d3fe3046c1cf67
Parent: 14b58ce36edd6747fb7fafdac8d06c91c803260f
Author: Randy Palamar
Date:   Wed,  8 Jan 2025 11:13:04 -0700

das: use the correct number of channels for HERCULES and RCA

I must have dropped this when I was cleaning up the FORCES path.

Diffstat:
M
shaders/das.glsl
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/shaders/das.glsl b/shaders/das.glsl
@@ -263,14 +263,14 @@ void main()
 		break;
 	case DAS_ID_HERCULES:
 		/* TODO: there should be a smarter way of detecting this */
-		if (edge2.x != 0) delta = vec3(edge2.x, edge1.y, 0) / float(dec_data_dim.y);
-		else              delta = vec3(edge1.x, edge2.y, 0) / float(dec_data_dim.y);
+		if (edge2.x != 0) delta = vec3(edge2.x, edge1.y, 0) / float(dec_data_dim.y - 1);
+		else              delta = vec3(edge1.x, edge2.y, 0) / float(dec_data_dim.y - 1);
 		sum = HERCULES(image_point, delta, starting_offset, apod_arg);
 		break;
 	case DAS_ID_RCA:
 		/* TODO: there should be a smarter way of detecting this */
-		if (edge2.x != 0) delta = vec3(edge2.x, edge1.y, 0) / float(dec_data_dim.y);
-		else              delta = vec3(edge1.x, edge2.y, 0) / float(dec_data_dim.y);
+		if (edge2.x != 0) delta = vec3(edge2.x, edge1.y, 0) / float(dec_data_dim.y - 1);
+		else              delta = vec3(edge1.x, edge2.y, 0) / float(dec_data_dim.y - 1);
 		sum = RCA(image_point, delta, starting_offset, apod_arg);
 		break;
 	}