R524809
170 lines
8.4 KiB
Python
170 lines
8.4 KiB
Python
"""阿里通义（wan* 万相 / qwen* 千问）提示词：国产"主体参考"语义。
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生图 API 把参考图当商品锚（subject reference）、prompt 当场景描述，
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风格词/文字商品描述不会反噬商品本体，负面清单也可以安全写入 prompt。
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豆包（doubao.py）与此语义一致，直接复用本模块装配。
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"""
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from __future__ import annotations
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from .common import (
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STYLE_SETS, TEXT_RENDER, requirements_block, resolve_style, selling_point_lines,
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)
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# ── 公共组件（主体参考语义专用）────────────────────────────────────────────
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QUALITY = (
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"Shot on Sony A7R V with 85mm lens at f/2.0, ultra-detailed, photorealistic, "
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"8K commercial image quality, professional retouching."
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)
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PRODUCT_REF_LOCK = (
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"CRITICAL: The product must look EXACTLY the same as in the reference image — "
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"identical silhouette, proportions, colors, print pattern, stitching and every design detail. "
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"Only the background, camera angle, lighting and styling may change. "
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"Do not redesign, add or remove any element of the product."
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)
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DEFAULT_NEGATIVE_INTENT = (
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"no AI-generated look, no CGI quality, no plastic appearance, no watermark, "
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"no distorted text, no deformed product, no extra limbs, no blurry areas"
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)
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# ── 各图类型 Prompt ───────────────────────────────────────────────────────
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def _prompt_white_bg(ctx: dict, style: dict, lang: str) -> str:
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return (
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f"E-commerce main product image on pure white background (RGB 255,255,255), "
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f"product \"{ctx['title']}\" centered and filling about 85% of the frame, "
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f"front view, even shadowless studio lighting with a faint natural contact shadow, "
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f"{style['tone']}. No text, no props, no background elements. {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_key_features(ctx: dict, style: dict, lang: str) -> str:
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sp = selling_point_lines(ctx, lang) or ctx["title"]
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return (
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f"E-commerce key-features infographic for product \"{ctx['title']}\", square layout: "
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f"product on the left two-thirds ({style['bg']}), right column lists 3 feature callouts "
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f"with minimal line icons, thin leader lines pointing to product details. "
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f"Feature callouts: {sp}. {style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_selling_pt(ctx: dict, style: dict, lang: str) -> str:
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sp = selling_point_lines(ctx, lang, 1) or ctx["title"]
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return (
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f"Single-selling-point e-commerce poster for product \"{ctx['title']}\": "
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f"hero product close-up at dynamic angle ({style['bg']}), one large bold headline "
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f"about \"{sp}\", generous negative space, one small magnified detail circle "
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f"highlighting material or craft. {style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_material(ctx: dict, style: dict, lang: str) -> str:
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return (
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f"Macro material close-up of product \"{ctx['title']}\": extreme detail shot revealing "
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f"fabric weave / surface texture / stitching / finish, shallow depth of field, "
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f"raking light across the surface, {style['tone']}. Small caption label in corner. "
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f"{TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_lifestyle(ctx: dict, style: dict, lang: str) -> str:
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bg = f" ({style['bg']})" if style.get("bg") else ""
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return (
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f"Lifestyle in-context scene for product \"{ctx['title']}\": the product is naturally "
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f"used / placed in a real environment{bg}, realistic human-scale surroundings, "
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f"soft daylight, authentic candid mood, product remains the clear visual focus. "
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f"{style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_multi_scene(ctx: dict, style: dict, lang: str) -> str:
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sp = selling_point_lines(ctx, lang)
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return (
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f"Triptych multi-scene e-commerce image for product \"{ctx['title']}\": three vertical panels "
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f"separated by thin gutters, each panel shows the SAME product in a different usage scene "
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f"(e.g. home interior / outdoor street / office desk), consistent color grading across panels. "
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f"Panel captions: {sp}. {style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_ecommerce_detail(ctx: dict, style: dict, lang: str) -> str:
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sp = selling_point_lines(ctx, lang) or ctx["title"]
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params = ctx["params_line"]
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return (
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f"E-commerce detail-page hero section for product \"{ctx['title']}\", square layout: "
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f"top half is a hero banner with the product at a 3/4 angle ({style['bg']}); "
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f"bottom half is a clean spec card listing 3 feature rows with line icons"
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+ (f" (specs: {params})" if params else "")
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+ f" and one highlighted row: {sp}. {style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_size_chart(ctx: dict, style: dict, lang: str) -> str:
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dims = ctx["params_line"]
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return (
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f"Product size chart infographic for \"{ctx['title']}\": product shown in clean front and side views "
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f"on light background, with thin measurement annotation lines (arrows) marking length, width and height, "
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f"measurement values rendered next to each line"
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+ (f" (known specs: {dims})" if dims else "")
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+ f", small caption row, precise technical drawing aesthetic. {style['tone']}. "
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f"{TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_sku_collection(ctx: dict, style: dict, lang: str) -> str:
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return (
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f"Colorway collection image for product \"{ctx['title']}\": the SAME product in all its color/variant "
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f"options arranged in a neat equal grid (2-4 items per row), each colorway with a small label chip below it, "
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f"consistent lighting and scale across all items, clean e-commerce presentation. "
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f"{style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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)
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def _prompt_custom(ctx: dict, style: dict, lang: str, extra: dict) -> str:
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hint = (extra.get("prompt_hint") or "").strip()
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purpose = extra.get("title") or ""
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detail = extra.get("detail") or ""
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bg = f" {style['bg']} as environment." if style.get("bg") else ""
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composed = (
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f"E-commerce marketing image for product \"{ctx['title']}\""
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+ (f" — {purpose}" if purpose else "")
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+ (f": {detail}" if detail else "")
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+ "."
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)
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if hint:
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composed += f" Composition: {hint}."
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return f"{composed}{bg} {style['tone']}. {TEXT_RENDER[lang]} {QUALITY} {PRODUCT_REF_LOCK}"
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_PROMPT_BUILDERS = {
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"white_bg": _prompt_white_bg,
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"key_features": _prompt_key_features,
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"selling_pt": _prompt_selling_pt,
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"material": _prompt_material,
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"lifestyle": _prompt_lifestyle,
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"multi_scene": _prompt_multi_scene,
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"ecommerce_detail": _prompt_ecommerce_detail,
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"size_chart": _prompt_size_chart,
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"sku_collection": _prompt_sku_collection,
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}
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def build_prompt(type_id: str, ctx: dict, style_set: int, lang: str, extra: dict | None = None,
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style_prompt: str | None = None, requirements: str | None = None) -> str:
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"""构造指定图类型的完整生图 prompt（主体参考语义）。
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extra: 方案项信息 {title, detail, prompt_hint}——custom 类型必需，
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预设类型也会把 prompt_hint 作为构图补充注入。
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style_prompt: 用户改写的风格提示词，覆盖 style_set 内置模板（tone/bg 整体替换）。
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requirements: 生图要求（最高优先级，强制约束），置于 prompt 最前面，
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声明覆盖一切冲突指令，用户可在此输入强制要求。
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"""
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style = resolve_style(style_set, style_prompt)
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extra = extra or {}
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if type_id == "custom":
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prompt = _prompt_custom(ctx, style, lang, extra)
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else:
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builder = _PROMPT_BUILDERS.get(type_id)
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if builder is None:
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raise ValueError(f"未知图类型: {type_id}")
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prompt = builder(ctx, style, lang)
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hint = (extra.get("prompt_hint") or "").strip()
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if hint:
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prompt = prompt.rstrip(".") + f". Additional composition guidance: {hint}."
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req = requirements_block(requirements)
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if req:
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prompt = f"{req} {prompt}"
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return prompt + ". " + DEFAULT_NEGATIVE_INTENT
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