{
  "$mulmocast": { "version": "1.1" },
  "title": "Movie Reference Image Tests",
  "lang": "en",
  "canvasSize": { "width": 1280, "height": 720 },
  "movieParams": {
    "provider": "google",
    "model": "veo-3.1-generate-preview"
  },
  "imageParams": {
    "images": {
      "start_frame": {
        "type": "imagePrompt",
        "prompt": "A serene Japanese garden with cherry blossoms in spring, bright daylight, photorealistic"
      },
      "end_frame": {
        "type": "imagePrompt",
        "prompt": "The same Japanese garden at sunset, golden hour lighting, warm tones, photorealistic"
      },
      "style_ref": {
        "type": "imagePrompt",
        "prompt": "Anime style illustration with vibrant colors, Studio Ghibli aesthetic"
      },
      "asset_car": {
        "type": "imagePrompt",
        "prompt": "A red sports car from the side, clean white background, product photography"
      },
      "asset_building": {
        "type": "imagePrompt",
        "prompt": "A modern glass office building, clean white background, architectural photography"
      }
    }
  },
  "beats": [
    {
      "text": "Pattern 1: moviePrompt only (text-to-video)",
      "moviePrompt": "A calm ocean wave rolling onto a sandy beach at sunset"
    },
    {
      "text": "Pattern 2: moviePrompt with imageName (first frame → image-to-video)",
      "imagePrompt": "Cherry blossom petals gently falling in a Japanese garden",
      "moviePrompt": "Cherry blossom petals gently falling in a Japanese garden"
    },
    {
      "text": "Pattern 3: moviePrompt with first frame + lastFrame (interpolation)",
      "imagePrompt": "A serene Japanese garden in bright daylight",
      "moviePrompt": "Time-lapse of a Japanese garden transitioning from day to sunset",
      "movieParams": {
        "lastFrameImageName": "end_frame"
      }
    },
    {
      "text": "Pattern 4: moviePrompt with referenceImages ASSET (subject reference, no first frame)",
      "moviePrompt": "A red sports car driving through a futuristic city at night",
      "movieParams": {
        "referenceImages": [{ "imageName": "asset_car", "referenceType": "ASSET" }]
      }
    },
    {
      "text": "Pattern 5: moviePrompt with referenceImages STYLE (aesthetic reference)",
      "moviePrompt": "A character walking through a magical forest with glowing mushrooms",
      "movieParams": {
        "referenceImages": [{ "imageName": "style_ref", "referenceType": "STYLE" }]
      }
    },
    {
      "text": "Pattern 6: moviePrompt with multiple ASSET referenceImages",
      "moviePrompt": "A red sports car parked in front of a modern glass building",
      "movieParams": {
        "referenceImages": [
          { "imageName": "asset_car", "referenceType": "ASSET" },
          { "imageName": "asset_building", "referenceType": "ASSET" }
        ]
      }
    },
    {
      "text": "Pattern 7: first frame + lastFrame + ASSET ref (NOTE: referenceImages is mutually exclusive with image/lastFrame in Veo 3.1, so this tests the validation — asset ref should be silently ignored when first frame is present)",
      "imagePrompt": "A red sports car parked in a Japanese garden during cherry blossom season",
      "moviePrompt": "The red sports car slowly drives through the garden as cherry blossom petals fall, transitioning from bright daylight to golden sunset",
      "movieParams": {
        "lastFrameImageName": "end_frame",
        "referenceImages": [{ "imageName": "asset_car", "referenceType": "ASSET" }]
      }
    },
    {
      "text": "Pattern 8: firstFrameImageName from imageRefs (no imagePrompt needed)",
      "moviePrompt": "Cherry blossom petals swirling in wind through the garden",
      "movieParams": {
        "firstFrameImageName": "start_frame"
      }
    },
    {
      "text": "Pattern 9: firstFrameImageName + lastFrameImageName (both from imageRefs, no imagePrompt)",
      "moviePrompt": "Smooth transition from bright spring daylight to warm golden sunset in the garden",
      "movieParams": {
        "firstFrameImageName": "start_frame",
        "lastFrameImageName": "end_frame"
      }
    }
  ]
}