Support fog editing in r3f second try (#163)

* Add support for editable fog

* Oops

packages/playground/src/shared/r3f-rocket/App.tsx

@@ -1,10 +1,11 @@
 import {editable as e, RefreshSnapshot, SheetProvider} from '@theatre/r3f'
 import {Stars} from '@react-three/drei'
 import {getProject} from '@theatre/core'
-import React, {Suspense, useState} from 'react'
+import React, {Suspense, useMemo, useState} from 'react'
 import {Canvas} from '@react-three/fiber'
 import {useGLTF, PerspectiveCamera} from '@react-three/drei'
 import sceneGLB from './scene.glb'
+import {Color} from 'three'
 
 document.body.style.backgroundColor = '#171717'
 
@@ -55,7 +56,13 @@ function App() {
     >
       <Canvas dpr={[1.5, 2]} linear shadows frameloop="demand">
         <SheetProvider getSheet={() => getProject('Space').sheet('Scene')}>
-          <fog attach="fog" args={[bg, 16, 30]} />
+          <e.fog
+            attach="fog"
+            color={useMemo(() => new Color(bg), [bg])}
+            near={16}
+            far={30}
+            uniqueName="Fog"
+          />
           <color attach="background" args={[bg]} />
           <ambientLight intensity={0.75} />
           <EditableCamera

packages/r3f/src/components/EditableProxy.tsx

@@ -59,11 +59,15 @@ const EditableProxy: VFC<EditableProxyProps> = ({
 
   // Helpers
   const scene = useThree((state) => state.scene)
-  const helper = useMemo<Helper>(
-    () => editable.objectConfig.createHelper(object),
+  const helper = useMemo<Helper | undefined>(
+    () => editable.objectConfig.createHelper?.(object),
     [object],
   )
   useEffect(() => {
+    if (helper == undefined) {
+      return
+    }
+
     if (selected === uniqueName || hovered) {
       scene.add(helper)
       invalidate()
@@ -75,6 +79,10 @@ const EditableProxy: VFC<EditableProxyProps> = ({
     }
   }, [selected, hovered, helper, scene])
   useFrame(() => {
+    if (helper == undefined) {
+      return
+    }
+
     if (helper.update) {
       helper.update()
     }

packages/r3f/src/defaultEditableFactoryConfig.ts

@@ -1,5 +1,6 @@
 import type {EditableFactoryConfig} from './editableFactoryConfigUtils'
 import {
+  createColorPropConfig,
   createNumberPropConfig,
   createVector,
   createVectorPropConfig,
@@ -100,6 +101,15 @@ const defaultEditableFactoryConfig = {
   line: baseObjectConfig,
   lineLoop: baseObjectConfig,
   lineSegments: baseObjectConfig,
+  fog: {
+    props: {
+      color: createColorPropConfig('color'),
+      near: createNumberPropConfig('near', 1, {nudgeMultiplier: 0.1}),
+      far: createNumberPropConfig('far', 1000, {nudgeMultiplier: 0.1}),
+    },
+    useTransformControls: false,
+    icon: 'cloud' as const,
+  },
 }
 
 // Assert that the config is indeed of EditableFactoryConfig without actually

packages/r3f/src/editableFactoryConfigUtils.ts

@@ -2,6 +2,7 @@ import type {UnknownShorthandCompoundProps} from '@theatre/core'
 import {types} from '@theatre/core'
 import type {Object3D} from 'three'
 import type {IconID} from './icons'
+import {Color} from 'three'
 
 export type Helper = Object3D & {
   update?: () => void
@@ -17,7 +18,7 @@ type Meta<T> = {
   updateObject?: (object: T) => void
   icon: IconID
   dimensionless?: boolean
-  createHelper: (object: T) => Helper
+  createHelper?: (object: T) => Helper
 }
 export type ObjectConfig<T> = {props: Props} & Meta<T>
 export type EditableFactoryConfig = Partial<
@@ -79,7 +80,7 @@ export const createNumberPropConfig = (
   {nudgeMultiplier = 0.01} = {},
 ): PropConfig<number> => ({
   parse: (props) => {
-    return props[key] ?? defaultValue ?? 0
+    return props[key] ?? defaultValue
   },
   apply: (value, object) => {
     object[key] = value
@@ -89,6 +90,28 @@ export const createNumberPropConfig = (
   },
 })
 
+export type Rgba = {
+  r: number
+  g: number
+  b: number
+  a: number
+}
+
+export const createColorPropConfig = (
+  key: string,
+  defaultValue = new Color(0, 0, 0),
+): PropConfig<Rgba> => ({
+  parse: (props) => {
+    return {...(props[key] ?? defaultValue), a: 1}
+  },
+  apply: (value, object) => {
+    object[key].setRGB(value.r, value.g, value.b)
+  },
+  type: {
+    [key]: types.rgba({...defaultValue, a: 1}),
+  },
+})
+
 export const extendObjectProps = <T extends {props: {}}>(
   objectConfig: T,
   extension: Props,

packages/r3f/src/icons.tsx

@@ -1,4 +1,8 @@
-import {BsCameraVideoFill, BsFillCollectionFill} from 'react-icons/bs'
+import {
+  BsCameraVideoFill,
+  BsFillCollectionFill,
+  BsCloudFill,
+} from 'react-icons/bs'
 import {GiCube, GiLightBulb, GiLightProjector} from 'react-icons/gi'
 import {BiSun} from 'react-icons/bi'
 import React from 'react'
@@ -10,6 +14,7 @@ const icons = {
   spotLight: <GiLightProjector />,
   sun: <BiSun />,
   camera: <BsCameraVideoFill />,
+  cloud: <BsCloudFill />,
 }
 
 export type IconID = keyof typeof icons