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Body Structure Templates

Templates used to define the character’s anatomical structure, body proportions, and structural reference sheets. These assets establish the stable physical identity used throughout the pipeline.

Anatomy Front

Defines anatomical structure from the front view.

3A Anatomy Front

Required inputs

  • 1D Face Anchor
  • 2 Hair Sheet

Optional inputs

  • body reference images

Avoid by default

  • UCS sheets
  • outfit references
Create a front-view anatomical reference for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Pose:
neutral anatomical stance
arms relaxed slightly away from the torso
legs shoulder-width apart
standing upright
symmetrical stance
weight evenly distributed
no contrapposto

View:
perfect front view
orthographic reference perspective
eye-level camera

Focus:
clear anatomical proportions
accurate limb length
balanced shoulder width
natural torso structure
canonical body type
stable head-to-body relationship

Clothing:
shirtless
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
no stylization
no bodybuilder physique
maintain the character's canonical body type

Output requirements:
single clean anatomical reference image
full body fully visible
clear readable silhouette
consistent identity with established face and hair references
no dramatic posing
no perspective distortion

Use:
[REFERENCE_PANEL_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Anatomy Side

Defines anatomical structure from the side view.

3B Anatomy Side

Required inputs

  • 3A Anatomy Front
  • 1D Face Anchor

Optional inputs

  • body references

Avoid by default

  • UCS sheets
Create a side-view anatomical reference for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Pose:
neutral anatomical stance
arms relaxed slightly away from the torso
legs shoulder-width apart
standing upright
symmetrical stance
weight evenly distributed
no contrapposto

View:
perfect left-facing side view
orthographic reference perspective
eye-level camera

Focus:
accurate posture
clear spine alignment
natural chest projection
correct head-to-torso proportion
balanced hip alignment
leg and foot structure from the side

Clothing:
shirtless
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
no stylization
no bodybuilder physique
maintain the character's canonical body type

Output requirements:
single clean anatomical reference image
full body fully visible
strict side readability
consistent identity with front anatomy reference
no dramatic posing
no perspective distortion

Use:
[REFERENCE_PANEL_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Anatomy Back

Defines anatomical structure from the back view.

3C Anatomy Back

Required inputs

  • 3A Anatomy Front
  • 3B Anatomy Side

Optional inputs

  • body references

Avoid by default

  • UCS sheets
Create a back-view anatomical reference for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Pose:
neutral anatomical stance
arms relaxed slightly away from the torso
legs shoulder-width apart
standing upright
symmetrical stance
weight evenly distributed
no contrapposto

View:
perfect back view
orthographic reference perspective
eye-level camera

Focus:
shoulder blade placement
back anatomy structure
natural waist taper
balanced leg alignment
clear back silhouette
consistent body width and proportion

Clothing:
shirtless
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
no stylization
no bodybuilder physique
maintain the character's canonical body type

Output requirements:
single clean anatomical reference image
full body fully visible
strict back view readability
consistent identity with front and side anatomy references
no dramatic posing
no perspective distortion

Use:
[REFERENCE_PANEL_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Anatomy Glutes

Defines anatomical structure of the glutes area from a 3/4 back view.

3D Anatomy Glutes

Required inputs

  • 3A Anatomy Front
  • 3B Anatomy Side
  • 3C Anatomy Back

Optional inputs

  • athletic reference photos

Avoid by default

  • UCS sheets
Create a **single-panel glute anatomy reference image** for the character reference library.

This image is used to clearly document the **glute structure, hip contour, and lower-back-to-thigh transition** for the character.

The goal is a clean anatomical reference panel that preserves the character’s identity while emphasizing the glute silhouette.

---

Character:
[CHARACTER_BLOCK]

---

Focus strongly on accurate:

- hip width
- glute projection
- glute-to-thigh transition

consistent with the character's body proportions.

---

## Reference Presentation

The image must present the character in a **clean studio-style anatomy reference pose** that clearly shows the glutes and hip structure.

Requirements:

• single character only
• landscape orientation
• **rear three-quarter body view**
• camera positioned slightly behind the character
• **tight anatomical crop focused on the hip region**

The image should read as a **glute anatomy study**, not a portrait.

Framing:

• **top of frame: waist / lower back (mid-back at most)**
• **bottom of frame: just above the knees**
• **the head and shoulders must NOT be visible**

The **hips and glutes must sit at the visual center of the frame**.

Only the following anatomy should be visible:

• lower back
• waist
• hips
• glutes
• upper thighs

The pose should feel **neutral and anatomical**, not posed or stylized.

Composition prioritizes the **hip and glute region rather than the full body**.

---

## Camera

orthographic reference camera
rear **three-quarter perspective**
slight natural body angle
no dramatic perspective distortion

**tight anatomical crop centered on hips and glutes**

The camera should clearly show:

• glute projection
• hip width
• glute-to-thigh transition
• lower back curve

The crop must read as a **body anatomy reference study focused on the glutes**, similar to professional figure reference photography.

---

## Lighting

neutral studio lighting
soft even illumination
no dramatic shadows
clean professional reference lighting

Lighting must **clearly reveal muscle and contour structure**.

Avoid strong top lighting or darkness that hides form.

---

## Styling

neutral studio background
subtle grounded shadow
clean presentation
natural realistic colors

No environmental elements.

---

## Clothing

The character should wear **minimal fitted athletic shorts or simple underwear**.

Requirements:

• snug fit that clearly shows body contours
• neutral light colors (grey, light blue, beige, soft neutral tones)
• matte fabric

Avoid:

• black fabric (too dark, hides contour)
• baggy clothing
• patterns
• logos
• accessories

The clothing must **not obscure glute shape or hip contour**.

---

## Output Constraints

• **single image only**
• **landscape orientation**
• **no text**
• **no labels**
• **no multi-panel layouts**

Anatomy Sheet

Combines multiple anatomy views into a structured sheet.

3E Anatomy Sheet

Required inputs

  • 3A Anatomy Front
  • 3B Anatomy Side
  • 3C Anatomy Back

Optional inputs

  • 3D Anatomy Glutes

Avoid by default

  • clothing references
Create a full anatomy reference sheet for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Panels:
front anatomy
side anatomy
back anatomy

Purpose:
define anatomical structure and body proportions
establish stable full-body construction for later pipeline stages

Clothing:
shirtless
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
no stylization
no bodybuilder physique
maintain the character's canonical body type

Output requirements:
clean professional anatomy reference sheet
all panels depict the same character
all panels fully visible
consistent body proportions across views
clear readable anatomical structure
no panel cropping
no overlapping panels
no perspective distortion

Use:
[REFERENCE_SHEET_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Body Anchor Sheet

Defines the stable full-body identity anchor used for later prompts.

4 Body Anchor

Required inputs

  • 1D Face Anchor
  • 2 Hair Sheet
  • 3E Anatomy Sheet

Optional inputs

  • 3D Anatomy Glutes

Avoid by default

  • UCS sheets
  • outfit references
Create a body anchor sheet used to lock the character's full-body identity.

Character:
[CHARACTER_BLOCK]

Panels:
front body
side body
three-quarter body

Focus:
stable full-body proportions
natural posture
clear silhouette readability
consistent head-to-body relationship
recognizable overall body shape

Clothing:
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
maintain canonical body type
consistent with anatomy reference

Output requirements:
clean professional body reference sheet
all panels depict the same character
full body fully visible in each panel
consistent proportions across panels
no dramatic perspective distortion

Use:
[REFERENCE_SHEET_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Proportions Grid

Defines body proportions using a head-count grid.

5 Proportion Grid

Required inputs

  • 4 Body Anchor
  • 3E Anatomy Sheet

Optional inputs

  • none

Avoid by default

  • UCS sheets
Create a body proportions grid reference for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Pose:
neutral anatomical stance
arms relaxed slightly away from the torso
legs shoulder-width apart
standing upright
weight evenly distributed
symmetrical stance

View:
perfect front view
orthographic reference perspective

Focus:
overall body height relative to head size
head-to-body ratio
limb length relationships
shoulder-to-hip proportions
torso segmentation
leg proportions and knee placement

Grid:
visible head-count grid
even horizontal divisions
grid lines aligned with anatomical landmarks

Clothing:
neutral fitted shorts
barefoot
no accessories

Body presentation:
natural anatomy
no exaggerated musculature
maintain canonical body type
consistent with anatomy reference

Output requirements:
clean professional proportion reference
full body visible
grid clearly readable
no perspective distortion

Use:
[REFERENCE_PANEL_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Muscle Tension

Shows how the body behaves under different tension states.

6 Muscle Tension

Required inputs

  • 4 Body Anchor
  • 3E Anatomy Sheet

Optional inputs

  • athletic reference images

Avoid by default

  • UCS sheets
Create a muscle tension reference sheet for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Panels:
relaxed body
light tension
moderate tension

Pose:
neutral standing stance
arms slightly away from torso
balanced posture

Focus:
how muscles appear under different tension states
subtle muscle definition
natural anatomical behavior
maintaining the character's canonical body type

Body presentation:
natural anatomy
no exaggerated musculature
no bodybuilder physique
no stylized muscle definition

Clothing:
neutral fitted shorts
barefoot
no accessories

Output requirements:
clean professional reference sheet
all panels depict the same character
consistent body proportions across panels
clear readable anatomy changes
no dramatic posing

Use:
[REFERENCE_SHEET_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Silhouette Sheet

Defines the character’s readable outer shape and body outline.

7 Silhouette

Required inputs

  • 4 Body Anchor
  • 3E Anatomy Sheet

Optional inputs

  • 5 Proportion Grid

Avoid by default

  • outfit sheets
  • UCS sheets
Create a silhouette reference sheet for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Panels:
front silhouette
side silhouette
three-quarter silhouette
dynamic silhouette

Focus:
overall body outline
recognizable body shape
shoulder width and torso taper
leg and arm proportions
hair silhouette contribution
clear character readability through outline

Rendering rules:
solid black silhouette
no internal details
no shading
no internal anatomy lines

Output requirements:
clean professional silhouette reference sheet
all silhouettes clearly readable
consistent body proportions across panels
distinct and recognizable character outline

Use:
[LAYOUT_BLOCK]
[LABELS_BLOCK]
[CAMERA_BLOCK]
[LIGHTING_BLOCK]
[BACKGROUND_BLOCK]
[PORTRAIT_SHEET_FORMAT_BLOCK]

Silhouette Front

Provides a standardized front silhouette used for visual height comparisons.

7B Silhouette Front

Required inputs:

  • 7A Silhouette Sheet
  • 3E Anatomy Sheet

Optional inputs:

  • 5 Proportion Grid

Avoid by default:

  • outfit sheets
  • UCS sheets
  • other silhouette panels
Create a front-view silhouette reference for a character design pipeline.

Character:
[CHARACTER_BLOCK]

View:
perfectly front-facing full body silhouette
neutral standing pose
arms relaxed at sides
feet shoulder-width apart
upright posture

Focus:
clean readable front silhouette
clear body proportions
shoulder width and torso taper
waist and hip shape
leg length and stance
hair silhouette contribution

Rendering rules:
solid black silhouette
no internal details
no shading
no internal anatomy lines
no lighting gradients

Output requirements:
single-panel silhouette image
front silhouette only
entire body visible from head to feet
clean centered framing
consistent proportions with the anatomy reference
silhouette must read clearly at small sizes

Use:
[LAYOUT_BLOCK]
[CAMERA_BLOCK]
[LIGHTING_BLOCK]
[BACKGROUND_BLOCK]
[SQUARE_REFERENCE_FORMAT_BLOCK]

--

Turnaround

Shows the character from multiple angles in a structured reference layout.

8 Turnaround

Required inputs

  • 4 Body Anchor
  • 7 Silhouette
  • 1D Face Anchor

Optional inputs

  • 3E Anatomy Sheet

Avoid by default

  • outfit sheets
Create a full character turnaround sheet for a character design pipeline.

Character:
[CHARACTER_BLOCK]

Panels:
front view
three-quarter front
side view
three-quarter back
back view

Focus:
complete character structure
consistent proportions across all views
clear understanding of the character from every angle

Pose:
neutral standing stance
arms slightly away from torso
balanced posture

Clothing:
signature base outfit
or neutral reference clothing

Output requirements:
clean professional turnaround sheet
all panels depict the same character
equal panel spacing
consistent scale across views
no perspective distortion
no dramatic posing

Use:
[REFERENCE_SHEET_BLOCK_STACK]
[LANDSCAPE_SHEET_FORMAT_BLOCK]

Height Scale Sheet

Shows the character’s height in a structured measurement reference.

18 Height Scale Sheet

Required inputs

  • 8 Turnaround

Optional inputs

  • 4 Body Anchor
  • 5 Proportion Grid

Avoid by default

  • UCS sheets
Create a height scale reference sheet.

Character:
[CHARACTER_BLOCK]

Panels:
character height reference
height markers

Focus:
clear height measurement
body proportion readability

Output requirements:
clean scale reference sheet
character standing upright
height clearly indicated

Use:
[REFERENCE_SHEET_BLOCK_STACK]
[PORTRAIT_SHEET_FORMAT_BLOCK]