diff --git a/assets/video.gif b/assets/video.gif
new file mode 100644
index 0000000..305a74a
Binary files /dev/null and b/assets/video.gif differ
diff --git a/kernels/ray_caster_kernel.cl b/kernels/ray_caster_kernel.cl
index f48c323..d27448c 100644
--- a/kernels/ray_caster_kernel.cl
+++ b/kernels/ray_caster_kernel.cl
@@ -13,6 +13,8 @@ float4 white_light(float4 input, float3 light, int3 mask) {
 
 }
 
+
+
 __kernel void min_kern(
         global char* map,
         global int3* map_dim,
@@ -62,6 +64,8 @@ __kernel void min_kern(
     // for all 3 axis XYZ.
 	float3 intersection_t = delta_t * offset;
 
+	// for negative values, wrap around the delta_t, rather not do this
+	// component wise, but it doesn't appear to want to work
 	if (intersection_t.x < 0) {
 		intersection_t.x += delta_t.x;
 	}
@@ -86,7 +90,7 @@ __kernel void min_kern(
     do {
 
 		mask = intersection_t.xyz <= min(intersection_t.yzx, intersection_t.zxy);
-		float3 thing = delta_t * fabs(convert_float3(mask.xyz));
+		
 		intersection_t += delta_t * fabs(convert_float3(mask.xyz));
 		voxel.xyz += voxel_step.xyz * mask.xyz;
 
diff --git a/src/Camera.cpp b/src/Camera.cpp
index 1ace366..884adcb 100644
--- a/src/Camera.cpp
+++ b/src/Camera.cpp
@@ -68,7 +68,7 @@ int Camera::update(double delta_time) {
 	
 	// so vector multiplication broke?
 	// have to do it component wise
-	double multiplier = 10;
+	double multiplier = 40;
 
 	position.x += movement.x * delta_time * multiplier;
 	position.y += movement.y * delta_time * multiplier;