Yotsuba Games
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Layer Depth Map

layer_depth_map

Builds a depth proxy map from layer stacking order — nearer layers become brighter

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The node name and summary are available in English. Port, parameter, and article details are currently shown in Japanese.

Input Ports

NameTypeDescription
レイヤー
layers
List<Image>
Required
レイヤー画像のリストです（先頭が最背面、末尾が最前面）

Output Ports

NameTypeDescription
深度マップ
map
Image
グレースケールの深度マップです。手前ほど白、どのレイヤーも無い場所は黒です

Parameters

NameTypeDefaultRangeDescription / Options
背景の値
background
Float
00–1 / step 0.01

どのレイヤーも不透明でない場所に入れる深度値です

Overview

Creates a simple depth map from layer order, with foreground layers shown brighter. Supplying a layer list gives you a base for atmospheric perspective, where distant areas are dark and hazy while the foreground remains clear.

Usage tips

  • A go-to depth-fog chain is depth map → gradient_map (distant = dark blue) → blend (Multiply). It adds atmosphere to layered backgrounds.
  • Order the input list from back to front. Reversing the order reverses the depth.
  • The output is a Map (value field), so treat it as graduated values rather than a mask.

Related nodes

  • layer_occlusion_map / contact_shadow_from_order — related nodes in the same lane
  • gradient_map / blend — consume the map
  • list_create — bundles the layer list

Technical details

  • At each pixel, the order of the frontmost opaque (alpha ≥ 0.5) layer is normalized as (index+1)/number of layers.
  • The output is a Map (value field) as defined in §2.7. Do not confuse it with a Mask.

Examples

  1. Depth fog: depth map → Gradient Map (distant = dark blue, foreground = colorless) → Blend(Multiply)
  2. Depth-based desaturation: use the depth map as the mask for Blend By Mask, mixing with a desaturated version

Related Nodes

Layer Occlusion Maplayer_occlusion_mapGradient Mapgradient_mapList Createlist_create
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Layer Depth Map — PixPipeline Node Reference