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feat: 503 conditional rendering of primitives #514

Merged
merged 10 commits into from
Feb 21, 2024
1 change: 1 addition & 0 deletions playground/components.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ declare module 'vue' {
DanielTest: typeof import('./src/components/DanielTest.vue')['default']
DebugUI: typeof import('./src/components/DebugUI.vue')['default']
DeleteMe: typeof import('./src/components/DeleteMe.vue')['default']
DynamicModel: typeof import('./src/components/DynamicModel.vue')['default']
FBXModels: typeof import('./src/components/FBXModels.vue')['default']
Gltf: typeof import('./src/components/gltf/index.vue')['default']
LocalOrbitControls: typeof import('./src/components/LocalOrbitControls.vue')['default']
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20 changes: 20 additions & 0 deletions playground/src/components/DynamicModel.vue
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
<script setup lang="ts">
import { useControls } from '@tresjs/leches'
import { useGLTF } from '@tresjs/cientos'

const { scene } = await useGLTF('https://raw.githubusercontent.com/Tresjs/assets/main/models/gltf/blender-cube.glb',
{ draco: true })

const { nodes } = await useGLTF(
'https://raw.githubusercontent.com/Tresjs/assets/main/models/gltf/aku-aku/AkuAku.gltf',
{ draco: true },
)
const model = nodes.AkuAku
const { isCube } = useControls({
isCube: true,
})
</script>

<template>
<primitive :object="isCube ? scene : model" />
</template>
32 changes: 12 additions & 20 deletions playground/src/components/TheExperience.vue
Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,6 @@ import { ref, watchEffect } from 'vue'
import { BasicShadowMap, SRGBColorSpace, NoToneMapping } from 'three'
import { TresCanvas } from '@tresjs/core'
import { OrbitControls } from '@tresjs/cientos'
import { TresLeches, useControls } from '@tresjs/leches'
import '@tresjs/leches/styles'
import TheSphere from './TheSphere.vue'

const gl = {
Expand All @@ -19,25 +17,18 @@ const gl = {
const wireframe = ref(true)

const canvas = ref()
const meshRef = ref()

const { isVisible } = useControls({
isVisible: true,
})

watchEffect(() => {
if (meshRef.value) {
console.log(meshRef.value)
if (canvas.value) {
console.log(canvas.value.context)
}
})
</script>

<template>
<TresLeches />
<TresCanvas
v-bind="gl"
ref="canvas"
window-size
class="awiwi"
:style="{ background: '#008080' }"
>
Expand All @@ -46,10 +37,14 @@ watchEffect(() => {
:look-at="[0, 4, 0]"
/>
<OrbitControls />
<TresFog
:color="gl.clearColor"
:near="5"
:far="15"
/>
<TresMesh
:position="[-2, 6, 0]"
:rotation="[0, Math.PI, 0]"
name="cone"
cast-shadow
>
<TresConeGeometry :args="[1, 1.5, 3]" />
Expand All @@ -66,22 +61,19 @@ watchEffect(() => {
/>
</TresMesh>
<TresMesh
ref="meshRef"
:rotation="[-Math.PI / 2, 0, Math.PI / 2]"
name="floor"
:rotation="[-Math.PI / 2, 0, 0]"
receive-shadow
>
<TresPlaneGeometry :args="[20, 20, 20]" />
<TresMeshToonMaterial
color="#D3FC8A"
/>
<TresPlaneGeometry :args="[10, 10, 10, 10]" />
<TresMeshToonMaterial color="#D3FC8A" />
</TresMesh>
<TheSphere v-if="isVisible" />
<TheSphere />
<TresAxesHelper :args="[1]" />
<TresDirectionalLight
:position="[0, 2, 4]"
:intensity="2"
cast-shadow
/>
<TresOrthographicCamera />
</TresCanvas>
</template>
90 changes: 90 additions & 0 deletions playground/src/pages/primitives.vue
Original file line number Diff line number Diff line change
@@ -0,0 +1,90 @@
<script setup lang="ts">
import { ref, watchEffect } from 'vue'
import { BasicShadowMap, SRGBColorSpace, NoToneMapping, Mesh, TorusGeometry, MeshToonMaterial, TorusKnotGeometry, PlaneGeometry, Group, SphereGeometry } from 'three'

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import { TresCanvas } from '@tresjs/core'
import { OrbitControls } from '@tresjs/cientos'
import { TresLeches, useControls } from '@tresjs/leches'
import '@tresjs/leches/styles'

const gl = {
clearColor: '#82DBC5',
shadows: true,
alpha: false,
shadowMapType: BasicShadowMap,
outputColorSpace: SRGBColorSpace,
toneMapping: NoToneMapping,
}

const wireframe = ref(true)

const canvas = ref()
const meshRef = ref()

const { knot } = useControls({
knot: true,
})

watchEffect(() => {
if (meshRef.value) {
console.log(meshRef.value)
}
})

const torusMesh = new Mesh(
new TorusGeometry(1, 0.5, 16, 100),
new MeshToonMaterial({
color: '#82DBC5',
}),
)

const torusKnot = new Mesh(
new TorusKnotGeometry(1, 0.5, 100, 16),
new MeshToonMaterial({
color: '#ff00ff',
}),
)

const sphere = new Mesh(
new SphereGeometry(1, 32, 32),
new MeshToonMaterial({
color: '#82DBC5',
}),
)

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@andretchen0 andretchen0 Jan 20, 2024

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In nodeOps.ts, I mentioned that cloning means that setup references are lost. Below is some demonstration code that can be pasted here.

useRenderLoop().onLoop(() => {
  torus.rotateX(0.01)
  torusKnot.rotateY(0.01)
})

Both torus and torusKnot continue to exist after the clone, but they no longer point to the on-screen objects, so the on-screen objects don't update.

If the objects aren't clone()d in nodeOps, the on-screen shapes will rotate – but other errors pop up.

I don't know if there's a workaround here. Just pointing it out.

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@andretchen0 This argument makes me think we should abandon the idea of trying to make :object prop reactive, swiping instances without losing the ref is getting too complicated.

Users could still use primitives with conditional rendering, I wanted primitive to work similar to component but honestly at this point I don't know how to achieve it.

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@alvarosabu

I don't understand the internals of Tres well enough to have an opinion on the feasibility here.

I'll start reading the source after I finish <AnimatedSprite /> for Cientos.

I wanted primitive to work similar to component but honestly at this point I don't know how to achieve it.

I agree that this is a worthwhile goal. It'd be great if it "just works".

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@andretchen0 let me know if you are up to a pair-programming call to discuss the internals when you get free let me know, we definitely can use your knowledge and your quality feedback inside of the custom renderer code. 💚

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@alvarosabu

Sure thing. That could be fun!

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Hey @andretchen0 I created a thread on the core team discord channel discussing this but to give a summary:

I found a way of making it work (animations), the only constraint is that the object passed through :object needs to be of the same type (mesh -> mesh) (group -> group). If we do (mesh -> group), it doesn't work anymore.

Screen_Recording_2024-02-02_at_12.43.44.mov

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Thanks! I'll go read the Discord.

const firstGroup = new Group()
firstGroup.add(torusMesh)
firstGroup.add(torusKnot)

const secondGroup = new Group()
secondGroup.add(sphere)
</script>

<template>
<TresLeches />
<TresCanvas
v-bind="gl"
ref="canvas"
window-size
class="awiwi"
:style="{ background: '#008080' }"
>
<TresPerspectiveCamera
:position="[7, 7, 7]"
:look-at="[0, 4, 0]"
/>
<OrbitControls />
<primitive
:position="[4, 2, 0]"
:object="knot ? firstGroup : secondGroup"
/>
<Suspense>
<DynamicModel />
</Suspense>
<TresAxesHelper :args="[1]" />
<TresDirectionalLight
:position="[0, 2, 4]"
:intensity="2"
cast-shadow
/>
</TresCanvas>
</template>
5 changes: 5 additions & 0 deletions playground/src/router.ts
Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,11 @@ const routes = [
name: 'Perf',
component: () => import('./pages/perf/index.vue'),
},
{
path: '/primitives',
name: 'Primitives',
component: () => import('./pages/primitives.vue'),
},
{
path: '/empty',
name: 'empty',
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