ed444b0615
This is a breaking change needed to fully implement instancing and stencil highlighting.
Previously, users would work directly with entities (on the Dart side, ThermionEntity), e.g.
final entity = await viewer.loadGlb("some.glb");
However, Filament "entities" are a lower-level abstraction.
Loading a glTF file, for example, inserts multiple entities into the scene.
For example, each mesh, light, and camera within a glTF asset will be assigned an entity. A top-level (non-renderable) entity will also be created for the glTF asset, which can be used to transform the entire hierarchy.
"Asset" is a better representation for loading/inserting objects into the scene; think of this as a bundle of entities.
Unless you need to work directly with transforms, instancing, materials and renderables, you can work directly with ThermionAsset.
93 lines
3.5 KiB
Dart
93 lines
3.5 KiB
Dart
// ignore_for_file: unused_local_variable
|
|
|
|
import 'dart:io';
|
|
import 'package:thermion_dart/thermion_dart.dart';
|
|
import 'package:test/test.dart';
|
|
|
|
import 'package:vector_math/vector_math_64.dart';
|
|
|
|
import 'helpers.dart';
|
|
|
|
void main() async {
|
|
final testHelper = TestHelper("gltf");
|
|
group("gltf", () {
|
|
test('load glb from file', () async {
|
|
await testHelper.withViewer((viewer) async {
|
|
var model = await viewer
|
|
.loadGlb("file://${testHelper.testDir}/assets/cube.glb");
|
|
await testHelper.capture(viewer, "load_glb_from_file");
|
|
await viewer.removeEntity(model);
|
|
});
|
|
});
|
|
|
|
test('load glb from buffer', () async {
|
|
await testHelper.withViewer((viewer) async {
|
|
var buffer =
|
|
File("${testHelper.testDir}/assets/cube.glb").readAsBytesSync();
|
|
var model = await viewer.loadGlbFromBuffer(buffer);
|
|
await testHelper.capture(viewer, "load_glb_from_buffer");
|
|
});
|
|
});
|
|
|
|
test('load glb from buffer with priority', () async {
|
|
await testHelper.withViewer((viewer) async {
|
|
viewer.addDirectLight(DirectLight.sun());
|
|
var buffer =
|
|
File("${testHelper.testDir}/assets/cube.glb").readAsBytesSync();
|
|
|
|
// priority 0 gets drawn first
|
|
var greenModel = await viewer.loadGlbFromBuffer(buffer, priority: 0);
|
|
for (final entity in await viewer.getChildEntities(greenModel)) {
|
|
final material = await viewer.getMaterialInstanceAt(entity, 0);
|
|
await material!.setParameterFloat4("baseColorFactor", 0, 1, 0.0, 1.0);
|
|
}
|
|
|
|
// priority 7 gets drawn last
|
|
var blueModel = await viewer.loadGlbFromBuffer(buffer, priority: 7);
|
|
for (final entity in await viewer.getChildEntities(blueModel)) {
|
|
final material = await viewer.getMaterialInstanceAt(entity, 0);
|
|
await material!.setParameterFloat4("baseColorFactor", 0, 0, 1.0, 1.0);
|
|
}
|
|
|
|
// blue model rendered in front
|
|
await testHelper.capture(viewer, "load_glb_from_buffer_with_priority");
|
|
});
|
|
});
|
|
|
|
test('create instance from gltf', () async {
|
|
await testHelper.withViewer((viewer) async {
|
|
var model = await viewer.loadGlb(
|
|
"file://${testHelper.testDir}/assets/cube.glb",
|
|
numInstances: 2);
|
|
await testHelper.capture(viewer, "gltf_create_instance_0");
|
|
var instance = await model.createInstance();
|
|
await instance.addToScene();
|
|
await viewer.setRendering(true);
|
|
|
|
await viewer.setTransform(
|
|
instance.entity, Matrix4.translation(Vector3.all(1)));
|
|
await testHelper.capture(viewer, "gltf_create_instance_1");
|
|
});
|
|
});
|
|
|
|
test('create instance from gltf with new material', () async {
|
|
await testHelper.withViewer((viewer) async {
|
|
var model = await viewer.loadGlb(
|
|
"file://${testHelper.testDir}/assets/cube.glb",
|
|
numInstances: 2);
|
|
await testHelper.capture(viewer, "gltf_create_instance_with_material_0");
|
|
|
|
final materialInstance = await viewer.createUnlitMaterialInstance();
|
|
await materialInstance.setParameterFloat4(
|
|
"baseColorFactor", 1.0, 0.0, 0.0, 1.0);
|
|
var instance = await model.createInstance(materialInstances: [materialInstance]);
|
|
await instance.addToScene();
|
|
|
|
await viewer.setTransform(
|
|
instance.entity, Matrix4.translation(Vector3.all(1)));
|
|
await testHelper.capture(viewer, "gltf_create_instance_with_material_1");
|
|
});
|
|
});
|
|
});
|
|
}
|