static const int32_t kBlurFilterRequiredMipCount
static Scalar CalculateBlurRadius(Scalar sigma)
static Scalar ScaleSigma(Scalar sigma)
std::optional< Rect > GetFilterSourceCoverage(const Matrix &effect_transform, const Rect &output_limit) const override
Internal utility method for |GetSourceCoverage| that computes the inverse effect of this transform on...
std::optional< Rect > GetFilterCoverage(const FilterInput::Vector &inputs, const Entity &entity, const Matrix &effect_transform) const override
Internal utility method for |GetLocalCoverage| that computes the output coverage of this filter acros...
std::optional< Entity > RenderFilter(const FilterInput::Vector &input_textures, const ContentContext &renderer, const Entity &entity, const Matrix &effect_transform, const Rect &coverage, const std::optional< Rect > &coverage_hint) const override
Converts zero or more filter inputs into a render instruction.
static Scalar CalculateScale(Scalar sigma)
static Quad CalculateUVs(const std::shared_ptr< FilterInput > &filter_input, const Entity &entity, const Rect &source_rect, const ISize &texture_size)
static std::string_view kNoMipsError