A comprehensive YAML-based prompt template designed for Gemini (referred to as Nano Banana Pro) to generate a four-tier web manga strip. It includes strict adherence rules for character consistency, detailed style guides (lighting, background, dialogue bubbles, visual effects), and a structured storyboard format for defining scenes and dialogue in each panel.
Prompt
STRICT ADHERENCE REQUIRED:
- Follow this YAML specification precisely. Do NOT deviate, add unauthorized elements, or make 'creative' interpretations.
- Character identity consistency from reference images (if provided) is PARAMOUNT.
- Thorough image analysis is mandatory to maintain this consistency. Any result that fails character identity checks is unacceptable.
Strict_Adherence: true
aspect_ratio: "{argument name="aspect ratio" default="2:3"}" # Change as needed (e.g., "1:1", "16:9")
resolution: "{argument name="resolution" default="2K"}" # Change as needed (e.g., "4K")
Character_Count: {{ Total number of characters appearing }}
Total_Panel_Count: {{ Total number of panels (usually 4-8 for a 4-tier structure) }}
Summary: >
{argument name="summary" default="Overall summary of the story. Briefly describe the plot flow, setting, main events, and conclusion."}
Style_Guide:
# Panel division style is fixed to "no outer frame, display to canvas edge"
comic_style: "4-tier, multi-panel manga strip with no outer framing border. The panels should extend to the very edge of the canvas, separated only by the inner white dividing lines."
lighting: "{{ Specify lighting. Time of day (day/night), light source (sunlight/electric light/moonlight), atmosphere (bright/dark/dramatic shadows), etc. }}"
background_elements: "{{ Main setting, specific description of the location, important props or environmental elements placed. }}"
dialogue_bubbles: "Standard white bubbles for speech, thought clouds for internal thoughts, dashed bubbles for whispers, and rectangular boxes for narration/monologue. {{ Add definitions for special speech bubbles if necessary (e.g., spiky bubbles for shouting) }}"
visual_effects: "{{ Specify manga visual effects. Manga symbols (sweat, veins, sparkle), effect lines (concentration lines, speed lines, tremor lines), visualization of sound effects, etc. }}"
Characters:
# Character definition. Alphanumeric IDs recommended.
{{ Character ID_1 }}:
description: "{{ Appearance, hairstyle, color, clothing, distinctive items, personality and expression tendencies. If reference images exist, write the file name here (e.g., reference image_0.png). }}"
{{ Character ID_2 }}:
description: "{{ Second character details... Describe for the number of characters. }}"
# Add as needed...
Storyboard:
# 4-tier panel division definition
Tier_1:
{{ Panel ID_T1_P1 (e.g., Panel_1_Large_Top) }}:
scene: "{{ Specific situation description for this panel. Who, where, and what they are doing. Composition and camera work can also be specified. }}"
dialogue:
- speaker: "{{ Speaker's Character ID }}"
type: "{{ Type of line: speech(normal), thought(thought), whisper(whisper), shout(shout), monologue(monologue/narration) }}"
text: "{{ Specific content of the line. Use \n if a line break is needed. }}"
# Add list if there are multiple lines in the same panel
# - speaker: "..."
# type: "..."
# text: "..."
# Write here to add panels to Tier_1
Tier_2:
{{ Panel ID_T2_P1 }}:
scene: "{{ Scene details }}"
dialogue:
- speaker: "{{ Speaker ID }}"
type: "{{ Type }}"
text: "{{ Content }}"
# Add panels as needed
Tier_3:
{{ Panel ID_T3_P1 }}:
scene: "{{ Scene details }}"
dialogue:
- speaker: "{{ Speaker ID }}"
type: "{{ Type }}"
text: "{{ Content }}"
# Add panels as needed
Tier_4:
{{ Panel ID_T4_P1 }}:
scene: "{{ Scene details }}"
dialogue:
- speaker: "{{ Speaker ID }}"
type: "{{ Type }}"
text: "{{ Content }}"
# Add panels as needed
