Nodes · Fathom
FathomMatch
Fathomv1core
Overview
Put an element in the plate's air and focus at the element's own depth: Koschmieder haze (so a blue haze is blue) and thin-lens defocus. ⚒ Fit from plate measures both from the plate and draws the data it fitted, so the numbers are something to look at; every value stays a knob.
How to
How-to
- Wire the element and the analysed plate.
- Press ⚒ Fit from plate: haze and defocus are measured from the plate, and the data it fitted is drawn so you can judge it.
- Adjust any value by hand;
fog_baseandfog_falloffmake the haze thin with height (this needs the plate's camera). See fathom.
Inputs
| Input | What it takes |
|---|---|
| element | — |
| plate | the original plate, for measurement |
Outputs
| Output | Type |
|---|---|
| out | Image |
Parameters
| Parameter | Type | Default | What it does |
|---|---|---|---|
| airlight | Color | [0.0, 0.0, 0.0, 1.0] | The haze's colour: what the air adds as distance grows (Koschmieder's A). Fit from plate measures it from the plate's far pixels. |
| beta | Color | [0.0, 0.0, 0.0, 1.0] | How fast the haze thickens with distance, per channel (per world unit). 0 = a clear day: nothing changes. |
| haze | Float | 1.0 | A multiplier on beta: 1 = the plate's own air, 0 = none. |
| focus_distance | Float | 0.0 | The plate's focus distance (world units). 0 = no defocus. Fit from plate measures it; an Unreal shot can use its camera's. |
| coc_scale | Float | 0.0 | Circle-of-confusion scale: blur radius in pixels = coc_scale x |1/focus - 1/depth|. |
| defocus | Float | 1.0 | A multiplier on the defocus: 1 = the plate's own lens. |
| max_radius | Float | 24.0 | The largest blur radius (pixels) the defocus will use. |
| fog_base | Float | 0.0 | Height fog: the world height (usually the ground) where the fog is as dense as beta says. |
| fog_falloff | Float | 0.0 | Height fog: how many world units up the fog thins by a factor of e. 0 = the same fog at every height. Above 0 the node needs the plate's camera (wire an analysed Fathom into plate). |
| fitted | Text | What the last fit measured (the haze and blur samples by depth) - drawn in the panel. | |
| bake_path | Text | The plate's Fathom bake, where the camera comes from (linked automatically). | |
| disabled | Bool | false | Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back. |
| label | Text | A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache. | |
| hide_input | Bool | false | Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap). |