render_gradient · Gradient
Generates a linear gradient with no input: tests, backgrounds, compositing plates.
Generates a linear gradient with no input: tests, backgrounds, compositing plates.
Render-path Laplacian (ksize 1-7).
Two-input LUT apply: in = image, in2 = LUT image; HALD and stripe layouts auto-detected.
Reads a .cube 3D LUT and converts it on the CPU into a HALD LUT image (feeds render_lut’s in2).
Two-input GPU mix (factor interpolation) on the render path.
The single-pass offscreen building block: one script, one fullscreen-triangle draw.
Identity render: in comes out unchanged — the control node for the GPU upload/download path.
Task-level pass orchestration: a passes count plus flat pass{i}_* parameter keys express the whole filter chain.
Render-path Scharr derivative (smoothing kernel calibrated as [3,10,3]).
Render-path Sobel (ksize 1-7); kernel coefficients computed on the CPU and sent as uniforms.