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update materials_and_textures example

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This commit is contained in:
Nick Fisher
2025-05-13 18:06:33 +08:00
parent cff0893d53
commit 62bf3876f8
4 changed files with 21 additions and 24 deletions
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26
examples/flutter/materials_and_textures/lib/main.dart
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@@ -54,8 +54,10 @@ class _MyHomePageState extends State<MyHomePage> {
_viewer = viewer;
await _viewer!.setPostProcessing(true);
_unlitMaterial = await _viewer!.createUnlitMaterialInstance();
_litMaterial = await _viewer!.createUbershaderMaterialInstance();
_unlitMaterial =
await FilamentApp.instance!.createUnlitMaterialInstance();
_litMaterial =
await FilamentApp.instance!.createUbershaderMaterialInstance();
await _viewer!.addDirectLight(
DirectLight.sun(
intensity: 50000,
@@ -81,7 +83,9 @@ class _MyHomePageState extends State<MyHomePage> {
materialInstances: [_unlitMaterial],
);
await _viewer!.setCameraPosition(0, 0, 5);
final view = await viewer.getActiveCamera();
await view.lookAt(Vector3(0, 0, 5));
await _viewer!.setRendering(true);
setState(() {});
});
@@ -95,18 +99,18 @@ class _MyHomePageState extends State<MyHomePage> {
await materialInstance.setParameterInt("baseColorIndex", 0);
var imageBuffer = await rootBundle.load("assets/background.png");
var imageData = imageBuffer.buffer.asUint8List(imageBuffer.offsetInBytes);
_image = await _viewer!.decodeImage(imageData);
_image = await FilamentApp.instance!.decodeImage(imageData);
var width = await _image!.getWidth();
var height = await _image!.getHeight();
_texture = await _viewer!.createTexture(width, height);
_texture = await FilamentApp.instance!.createTexture(width, height);
await _texture!.setLinearImage(
_image!,
PixelDataFormat.RGBA,
PixelDataType.FLOAT,
);
final textureSampler = await _viewer!.createTextureSampler();
final textureSampler = await FilamentApp.instance!.createTextureSampler();
await materialInstance.setParameterTexture(
"baseColorMap",
_texture!,
@@ -134,7 +138,7 @@ class _MyHomePageState extends State<MyHomePage> {
if (_viewer != null) ...[
Positioned.fill(
child: ThermionListenerWidget(
inputHandler: DelegateInputHandler.fixedOrbit(_viewer!),
inputHandler: DelegateInputHandler.fixedOrbit(_viewer!, sensitivity: InputSensitivityOptions(mouseSensitivity: 0.01)),
child: ThermionWidget(viewer: _viewer!),
),
),
@@ -156,9 +160,7 @@ class _MyHomePageState extends State<MyHomePage> {
ElevatedButton(
onPressed: () async {
unlit = !unlit;
setState(() {
});
setState(() {});
await _asset.setMaterialInstanceAt(
unlit ? _unlitMaterial : _litMaterial,
);
@@ -168,8 +170,8 @@ class _MyHomePageState extends State<MyHomePage> {
),
ElevatedButton(
onPressed: () async {
var materialInstance = await _viewer!
.getMaterialInstanceAt(_asset.entity, 0);
var materialInstance =
await _asset.getMaterialInstanceAt();
await _setMaterialTexture(materialInstance);
},
child: Text("Apply texture"),