diff --git a/crates/kernels/vulkan-and-cpu/kernel.spv b/crates/kernels/vulkan-and-cpu/kernel.spv
index 08e4b4b..8b0619a 100644
Binary files a/crates/kernels/vulkan-and-cpu/kernel.spv and b/crates/kernels/vulkan-and-cpu/kernel.spv differ
diff --git a/crates/kernels/vulkan-and-cpu/src/kernel.rs b/crates/kernels/vulkan-and-cpu/src/kernel.rs
index 6b0cf1c..f7a7245 100644
--- a/crates/kernels/vulkan-and-cpu/src/kernel.rs
+++ b/crates/kernels/vulkan-and-cpu/src/kernel.rs
@@ -136,7 +136,7 @@ impl Kernel {
             return;
         }
 
-        for index in 0..=buffers.constants.max_los_as_points {
+        for index in 0..buffers.constants.max_los_as_points {
             runner.kernel(buffers, index);
         }
 
@@ -435,9 +435,9 @@ mod test {
         let angle = 0.0;
         let (surfaces, rings, lines) = invoke_default(&tvs_id, angle);
 
-        expect_tvs(&tvs_id, &surfaces, 0.2617995);
+        expect_tvs(&tvs_id, &surfaces, 0.17453301);
         expect_ring_data(&tvs_id, angle, &rings, vec![4]);
-        expect_tvs(&tvs_id, &lines, 5.0);
+        expect_tvs(&tvs_id, &lines, 4.0);
     }
 
     #[gtest]
@@ -457,9 +457,9 @@ mod test {
         let angle = 90.0;
         let (surfaces, rings, lines) = invoke_default(&tvs_id, angle);
 
-        expect_tvs(&tvs_id, &surfaces, 0.2617995);
+        expect_tvs(&tvs_id, &surfaces, 0.17453301);
         expect_ring_data(&tvs_id, angle, &rings, vec![4]);
-        expect_tvs(&tvs_id, &lines, 5.0);
+        expect_tvs(&tvs_id, &lines, 4.0);
     }
 
     #[gtest]
@@ -490,11 +490,11 @@ mod test {
         let angle = 0.0;
         let (surfaces, rings, lines) = invoke_default(&tvs_id, angle);
 
-        expect_tvs(&tvs_id, &surfaces, 0.2617995);
+        expect_tvs(&tvs_id, &surfaces, 0.17453301);
         // TODO: I think this result clearly shows that we should be closing the ring sector for
         // the _previous_ DEM ID?
         expect_ring_data(&tvs_id, angle, &rings, vec![4]);
-        expect_tvs(&tvs_id, &lines, -5.0);
+        expect_tvs(&tvs_id, &lines, -4.0);
     }
 
     #[gtest]
@@ -503,9 +503,9 @@ mod test {
         let angle = 45.0;
         let (surfaces, rings, lines) = invoke_default(&tvs_id, angle);
 
-        expect_tvs(&tvs_id, &surfaces, 0.2617995);
+        expect_tvs(&tvs_id, &surfaces, 0.17453301);
         expect_ring_data(&tvs_id, angle, &rings, vec![4]);
-        expect_tvs(&tvs_id, &lines, -5.0);
+        expect_tvs(&tvs_id, &lines, -4.0);
     }
 
     #[gtest]
@@ -525,9 +525,9 @@ mod test {
         let angle = 135.0;
         let (surfaces, rings, lines) = invoke_default(&tvs_id, angle);
 
-        expect_tvs(&tvs_id, &surfaces, 0.2617995);
+        expect_tvs(&tvs_id, &surfaces, 0.17453301);
         expect_ring_data(&tvs_id, angle, &rings, vec![4]);
-        expect_tvs(&tvs_id, &lines, -5.0);
+        expect_tvs(&tvs_id, &lines, -4.0);
     }
 
     #[gtest]
diff --git a/crates/total-viewsheds/src/compute.rs b/crates/total-viewsheds/src/compute.rs
index d5ac19a..9e5c063 100644
--- a/crates/total-viewsheds/src/compute.rs
+++ b/crates/total-viewsheds/src/compute.rs
@@ -595,8 +595,8 @@ pub mod test {
             compute.total_surfaces,
             [
                 0.0, 0.0,      0.0,       0.0,
-                0.0, 568.6271, 3996.5193, 0.0,
-                0.0, 6310.845, 8529.429,  0.0,
+                0.0, 568.6271, 2461.8464, 0.0,
+                0.0, 4290.639, 5686.299,  0.0,
                 0.0, 0.0,      0.0,       0.0
             ]
         );
@@ -619,8 +619,8 @@ pub mod test {
             .collect::<Vec<_>>(),
             [
                 0.0, 0.0, 0.0, 0.0,
-                0.0, 1.0, 5.0, 0.0,
-                0.0, 5.0, 5.0, 0.0,
+                0.0, 1.0, 4.0, 0.0,
+                0.0, 4.0, 4.0, 0.0,
                 0.0, 0.0, 0.0, 0.0
             ]
         );
@@ -632,7 +632,7 @@ pub mod test {
             .collect::<Vec<_>>(),
             [
                 0, 0,   0,   0,
-                0, 0,   0,   0,
+                0, 0,   12,  0,
                 0, 180, 0,   0,
                 0, 0,   0,   0
             ]