sigma.h File Reference

#include "impeller/geometry/scalar.h"

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Classes
struct	impeller::Sigma
	In filters that use Gaussian distributions, "sigma" is a size of one standard deviation in terms of the local space pixel grid of the filter input. In other words, this determines how wide the distribution stretches. More...
struct	impeller::Radius
	For convolution filters, the "radius" is the size of the convolution kernel to use on the local space pixel grid of the filter input. For Gaussian blur kernels, this unit has a linear relationship with Sigma. See kKernelRadiusPerSigma for details on how this relationship works. More...

Namespaces
namespace	impeller

Variables
static constexpr float	impeller::kKernelRadiusPerSigma = 1.73205080757