{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://visualspec.dev/schema/1.0/modules/effects.schema.json",
  "title": "Effects",
  "description": "Reusable visual effects, particle systems and post-processing intent.",
  "$defs": {
    "effect": {
      "type": "object",
      "properties": {
        "id": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "type": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
        },
        "targetRefs": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
          },
          "uniqueItems": true
        },
        "enabled": {
          "type": "boolean"
        },
        "assetRef": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "duration": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/duration"
        },
        "blend": {
          "enum": [
            "normal",
            "add",
            "multiply",
            "screen"
          ]
        },
        "particles": {
          "type": "object",
          "properties": {
            "count": {
              "type": "integer",
              "minimum": 0
            },
            "rate": {
              "type": "number",
              "minimum": 0
            },
            "lifetime": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/duration"
            },
            "size": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/size"
            },
            "velocity": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/vector3"
            },
            "spread": {
              "type": "number",
              "minimum": 0
            },
            "color": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/appearance.schema.json#/$defs/color"
            },
            "seed": {
              "type": "integer",
              "minimum": 0
            }
          },
          "additionalProperties": false
        },
        "trail": {
          "type": "object",
          "properties": {
            "length": {
              "type": "number",
              "minimum": 0
            },
            "width": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/size"
            },
            "color": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/appearance.schema.json#/$defs/color"
            }
          },
          "additionalProperties": false
        },
        "postProcessing": {
          "type": "object",
          "properties": {
            "exposure": {
              "type": "number"
            },
            "contrast": {
              "type": "number",
              "minimum": 0
            },
            "saturation": {
              "type": "number",
              "minimum": 0
            },
            "temperature": {
              "type": "number"
            },
            "tint": {
              "type": "number"
            },
            "bloom": {
              "type": "number",
              "minimum": 0
            },
            "vignette": {
              "type": "number",
              "minimum": 0,
              "maximum": 1
            },
            "grain": {
              "type": "number",
              "minimum": 0,
              "maximum": 1
            },
            "chromaticAberration": {
              "type": "number",
              "minimum": 0,
              "maximum": 1
            },
            "lutAssetRef": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
            },
            "toneMapping": {
              "enum": [
                "none",
                "linear",
                "reinhard",
                "aces",
                "filmic"
              ]
            }
          },
          "additionalProperties": false
        },
        "shaderAssetRef": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "parameters": {
          "type": "object",
          "additionalProperties": {
            "anyOf": [
              {
                "type": "string",
                "minLength": 1
              },
              {
                "type": "number"
              },
              {
                "type": "boolean"
              },
              {
                "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/vector2"
              },
              {
                "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/vector3"
              },
              {
                "$ref": "https://visualspec.dev/schema/1.0/modules/appearance.schema.json#/$defs/color"
              }
            ]
          }
        },
        "extensions": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/extensions"
        }
      },
      "required": [
        "id",
        "type"
      ],
      "additionalProperties": false
    }
  },
  "$ref": "#/$defs/effect"
}