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sd-operation-rules

Substance Designer 操作通用规则。所有 SD 图操作前必读。 Use when AI needs to: (1) perform any SD graph modification, (2) check post-operation best practices, (3) understand…

Skill by IvanYangYangXi

IndexedMIT★ 36
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About

Substance Designer 操作通用规则。所有 SD 图操作前必读。 Use when AI needs to: (1) perform any SD graph modification, (2) check post-operation best practices, (3) understand SD API constraints. Substance Designer only (run_python).

Use cases: backend

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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Network hosts it talks to 1

  • codeload.github.com · found in install command

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  • ~/.claude/skills/sd-operation-rules

What's inside

Skill name
sd-operation-rules
Description
Substance Designer 操作通用规则。所有 SD 图操作前必读。 Use when AI needs to: (1) perform any SD graph modification, (2) check post-operation best practices, (3) understand SD API constraints. Substance Designer only (run_python).
License
MIT
Instructions
237 lines in SKILL.md · view on GitHub

Files (3)

  • SKILL.md
  • manifest.json
  • material_analysis.md · references/

SKILL.md (first lines)

# SD 操作规则

> 📋 **通用节点图工作流**(伪代码→映射→分组创建→验证→布局)见 `dcc-node-graph-workflow` skill。
> 本 skill 专注 SD 的 **API 约束、截图验证流程和致命陷阱**。

---

## 🔴 代码拆分规则

**每次 run_python 调用做一个逻辑步骤**(通常 3-5 个节点操作)。

**避免:**
- ⛔ 一次调用创建整个图(10+ 节点 + 全部设参 + 全部连线)→ 中间报错后续全丢
- ⛔ 截图和预写分析放同一次调用 → 分析不是基于真实观察

**推荐模式:**
```
调用1: 创建 mesh_1 + levels,设参连线
调用2: save_preview(levels) ← 只截图,不写分析
       → 看到图后分析 → 通过则继续
调用3: 创建 transformation × 2 + blend
调用4: save_preview(blend) → 分析 → 通过则继续
```

---

## 🔴 参数设置规则

**⛔ 禁止猜测参数名和类型!创建节点后第一步永远是动态查询。**

```python
# ✅ 正确:先查询,再设值
node = graph.newNode("sbs::compositing::levels")
for p in node.getProperties(SDPropertyCategory.Input):
    pid = p.getId()
    if pid.startswith("$"): continue
    v = node.getPropertyValue(p)
    if v is None: print(f"  PORT: {pid}")      # 连接端口
    else: print(f"  PARAM: {pid} = {v.get()} ({type(v).__name__})")
```

**已知陷阱:**

| 节点 | 参数名 | 正确类型 | 常见错误 |
|------|--------|---------|---------|
| levels | `levelinlow/levelinhigh/levelinmid` | **Float4** | 猜成 `inlow` + Float |
| blend | `opacitymult` (标量) | SDValueFloat | 猜成 `opacity`(那是连接端口) |
| uniform | `colorswitch` | SDValueBool | ⛔ 不设 = 输出永远灰色 |
| 库节点 Enum | — | **SDValueInt.sNew(n)** | 无 SDValueEnum.sNew |

---

## 🔴 截图驱动的迭代循环

### 截图两步法(⛔ 必须分两次调用)

**步骤 1** (run_python): 只截图
```python
save_preview(node, "CP1_structure")
```

**步骤 2** (看到图后): 逐维度分析,写出判断

#### 4 个必须分析的维度

| 维度 | 检查点 | 问题信号 |
|------|--------|---------|
| **亮度/对比度** | 是否有足够动态范围? | 全黑→立即向上游追查 |
| **图案正确性** | 是否符合预期? | artifact/意外图案 |
| **密度/比例尺** | 基于物理尺度声明检查 | 太稀/太密 → 调 scale |
| **CG 感** | 看起来是否过于规则? | 需要 warp/噪波打破 |

**分析输出格式:**
```
[CP1] 分析 (attempt N/3):
  亮度: 正常/全黑/...
  图案: 正确/有artifact/...
  密度: 合理/过密/...
  CG感: 无/有...
  判定: ✅通过 / ⛔需修复
  修复: [根因 → 具体改法]
```

**修复循环(⛔ 最多 3 次,超出则报告并停止):**
```
截图 → 分析 → 有问题?
  → 向上游逐节点截图追查 → 找第一个出问题的节点
  → 修复 → 重新截图验证 → retry_count++
  → retry_count >= 3? 停!汇报,请求人工指导
```

---

## 🔴 参考工程优先原则

**⛔ 禁止从零构建功能模块!先查参考工程有没有可复用的。**

| 优先级 | 方式 | 示例 |
|--------|------|------|
| 1⃣ 加载参考工程子图 | loadUserPackage → newInstanceNode | Creases_Filter、fabric_weathering |
| 2⃣ 复制参考工程节点链参数 | 按参考工程参数值重建 | fabric_009 的 mesh_1+transformation 编织链 |
| 3⃣ 复用参考工程管线架构 | 替换纹理源,保留管线结构 | fabric_009 的 5层着色架构 |
| 4⃣ 自己构建 | 仅当参考工程完全没有时 | — |

**Phase 1.5 必须声明:**
```
功能模块拆解:
  1. [编织结构] → 来源: fabric_009 mesh_1+transformation 链 (搬运)
  2. [褶皱效果] → 来源: fabric_002 Creases_Filter 子图 (加载实例)
  3. [着色管线] → 来源: fabric_009 5层着色架构 (复用结构, 调整颜色)
  4. [xxx]     → 来源: 无参考, 需自行构建
```

---

## API 速查

### 预注入变量(直接用)
`sd`, `app`, `graph`, `S`, `W`, `SDPropertyCategory`, `float2/3/4`, `ColorRGBA`

From IvanYangYangXi/artclaw_bridge, MIT.

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Last commit (this folder)
Apr 15, 2026 (6 months ago)
Last release
Apr 15, 2026 (6 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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sd-operation-rules skill. Agent Mart. https://agentmart.dev/skills/ivanyangyangxi-sd-operation-rules (last updated 2026-10-24)