Struct LutNode 

pub struct LutNode { /* private fields */ }

Applies a 3D colour LUT to a frame via trilinear interpolation.

Load one with LutNode::from_cube or LutNode::from_3dl. The GPU path renders into an Rgba8Unorm target like the other effect nodes, so it is 8-bit only (a high-bit-depth graph falls back as it does for every effect node today).

Implementations

impl LutNode

pub fn from_cube(path: &Path) -> Result<Self, RenderError>

Loads a 3D LUT from an Adobe .cube file.

Errors

Returns RenderError::LutLoad if the file cannot be read or is malformed (missing LUT_3D_SIZE, a bad data line, or the wrong entry count).

pub fn from_3dl(path: &Path) -> Result<Self, RenderError>

Loads a 3D LUT from a Resolve .3dl file.

Errors

Returns RenderError::LutLoad if the file cannot be read or the entry count is not a perfect cube.

Trait Implementations

impl RenderNode for LutNode

Available on crate feature wgpu only.

fn process( &self, inputs: &[&Texture], outputs: &[&Texture], ctx: &RenderContext, )

Run the GPU render pass.

fn input_count(&self) -> usize

Number of input textures required by this node (default: 1).

fn pass_count(&self) -> usize

Number of render passes (default: 1). Multi-pass nodes (e.g. gaussian blur) return 2 or more.

fn output_dimensions(&self, in_w: u32, in_h: u32) -> (u32, u32)

Output dimensions this node produces given its input dimensions.

fn set_param(&self, _param: NodeParam) -> bool

Applies param to this node in place, returning whether it was taken.

impl RenderNodeCpu for LutNode

fn process_cpu(&self, rgba: &mut [u8], _w: u32, _h: u32)

Process rgba in-place.