X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=deconvolution_sharpen_effect.cpp;h=38cf0cf3fcbc66bf6f8b9a5e64e65972da977fab;hp=ab28eb387d980ec8923ec150b1f3903e04e85f10;hb=0490917aca6b8e6057c04c8becc820a8e849a801;hpb=71a27346652e54781215737255f757f6292ff120

diff --git a/deconvolution_sharpen_effect.cpp b/deconvolution_sharpen_effect.cpp
index ab28eb3..38cf0cf 100644
--- a/deconvolution_sharpen_effect.cpp
+++ b/deconvolution_sharpen_effect.cpp
@@ -268,8 +268,7 @@ void DeconvolutionSharpenEffect::update_deconvolution_kernel()
 			if (gaussian_radius < 1e-3) {
 				val = (x == 0 && y == 0) ? 1.0f : 0.0f;
 			} else {
-				float z = hypot(x, y) / gaussian_radius;
-				val = exp(-z * z);
+				val = exp(-(x*x + y*y) / (2.0 * gaussian_radius * gaussian_radius));
 			}
 			gaussian_h(y + 2 * R, x + 2 * R) = val;
 		}