Veo 3.1 on Google Flow
{
"Objective": "Generate an 8-second realistic, quirky lo-fi cinematic street video featuring multiple cats in a vintage film color style, while maintaining a clean, modern full-frame image with no film borders.",
"PersonaDetails": {
"Role": "Video generation model",
"StyleBias": "Realistic live-action, cinematic street photography",
"Restrictions": [
"No text or subtitles",
"No logos or watermarks",
"No humans visible",
"No film borders, sprocket holes, or burn marks"
]
},
"SceneDescription": {
"Setting": {
"Location": "Outdoor urban alley or street",
"Ground": "Rough concrete",
"EnvironmentStyle": "Slightly messy urban surroundings, softly out of focus"
},
"Subjects": [
{
"Type": "Cat",
"Description": "Tabby-and-white cat",
"Position": "Foreground, left side, very close to camera",
"Details": [
"Face appears large but not distorted",
"Holding a cigarette in mouth in a dry, deadpan, humorous way",
"Small glowing cigarette tip",
"Thin smoke rising"
]
},
{
"Type": "Cat",
"Description": "Fluffy cat",
"Position": "Midground, centered",
"Details": ["Looking toward the camera"]
},
{
"Type": "Cat",
"Description": "Black-and-white cat",
"Position": "Background",
"Details": ["Standing calmly"]
},
{
"Type": "Cat",
"Description": "White cat wearing a cowboy hat",
"Position": "Background",
"Details": ["Calm, still posture"]
}
],
"SpatialComposition": "Cats form a natural depth line from foreground to background"
},
"CameraAndComposition": {
"CameraPlacement": "Very low to the ground, eye-level with the cats",
"Lens": "Rectilinear lens, 35–50mm equivalent",
"Perspective": "Straight, no distortion",
"Framing": "Clean rectangular full-frame image",
"DepthOfField": "Shallow-to-medium",
"FocusBehavior": {
"PrimaryFocus": "Midground cat",
"ForegroundFocus": "Slightly soft due to close proximity"
},
"Motion": "Mild handheld micro-movement for candid street feel"
},
"Lighting": {
"Type": "Bright natural daylight",
"Direction": "Strong backlight from above and behind the cats",
"Sky": "Overexposed and washed out",
"Exposure": {
"Cats": "Slightly underexposed with soft shadow detail",
"BounceLight": "Natural ambient bounce from the ground"
}
},
"ColorAndTexture": {
"ColorPalette": "Muted, slightly desaturated",
"Tone": "Greenish/teal vintage film look",
"Contrast": "Soft contrast with lifted blacks",
"Highlights": "Gentle roll-off",
"Texture": [
"Subtle film grain",
"Light dust texture within image only"
]
},
"ActionTimeline": {
"DurationSeconds": 8,
"Takes": "Single continuous take",
"ForegroundAction": [
"Small head movement from foreground cat",
"Cigarette shifts slightly",
"Thin smoke drifts upward naturally"
],
"BackgroundAction": [
"Background cats blink or subtly shift posture",
"Cowboy-hat cat remains calm and mostly still"
]
},
"StyleRules": {
"OverallLook": "Realistic live-action",
"CinematicFeel": "Lo-fi street cinema",
"FrameIntegrity": "Maintain clean rectangular frame throughout",
"ProhibitedElements": [
"Text",
"Subtitles",
"Logos",
"Decorative borders"
]
},
"OutputFormat": {
"Type": "Video",
"Resolution": "Full-frame, modern digital quality",
"AspectRatio": "Standard rectangular (no stylized borders)"
}
}