126 lines
4.5 KiB
Dart
126 lines
4.5 KiB
Dart
@Timeout(const Duration(seconds: 600))
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import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'package:test/test.dart';
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import 'package:thermion_dart/src/utils/src/texture_projection.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/callbacks.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_asset.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_camera.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_filament_app.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_material.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_render_target.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_scene.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_swapchain.dart';
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import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_view.dart';
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import 'package:thermion_dart/thermion_dart.dart';
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import 'helpers.dart';
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Future<Texture> createTextureFromImage(TestHelper testHelper) async {
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final image = await FilamentApp.instance!.decodeImage(
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File("${testHelper.testDir}/assets/cube_texture2_512x512.png")
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.readAsBytesSync());
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final texture = await FilamentApp.instance!
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.createTexture(await image.getWidth(), await image.getHeight());
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await texture.setLinearImage(
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image, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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return texture;
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}
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Future<ThermionAsset> _makeCube(
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TestHelper testHelper, ThermionViewer viewer) async {
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final cube = await testHelper.createCube(viewer);
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var ubershader = await cube.getMaterialInstanceAt();
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await ubershader.setDepthCullingEnabled(true);
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await ubershader.setDepthWriteEnabled(true);
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await ubershader.setCullingMode(CullingMode.BACK);
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await ubershader.setParameterInt("baseColorIndex", 0);
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return cube;
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}
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void main() async {
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final testHelper = TestHelper("projection");
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await testHelper.setup();
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group('projection', () {
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test('project texture & UV unwrap', () async {
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await testHelper.withViewer((viewer) async {
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final camera = await viewer.getActiveCamera();
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await viewer.view.setFrustumCullingEnabled(false);
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await camera.setLensProjection(near: 0.75, far: 100);
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final dist = 5.0;
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await camera.lookAt(
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Vector3(
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-0.5,
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dist,
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dist,
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),
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);
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final cube = await _makeCube(testHelper, viewer);
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final ubershader = await cube.getMaterialInstanceAt();
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final originalTexture = await createTextureFromImage(testHelper);
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final sampler = await FilamentApp.instance!.createTextureSampler();
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await ubershader.setParameterTexture(
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"baseColorMap", originalTexture, sampler);
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var textureProjection =
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await TextureProjection.create(viewer.view, testHelper.swapChain);
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await FilamentApp.instance!.setClearOptions(0, 0, 0, 1,
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clearStencil: 0, discard: false, clear: true);
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final divisions = 8;
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final projectedImage =
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await FilamentApp.instance!.createImage(512, 512, 4);
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final projectedTexture = await FilamentApp.instance!.createTexture(
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512,
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512,
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textureFormat: TextureFormat.RGBA32F,
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);
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for (int i = 0; i < divisions; i++) {
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await camera.lookAt(
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Vector3(
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sin(i / divisions * pi) * dist,
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dist,
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cos(i / divisions * pi) * dist,
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),
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);
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await textureProjection.project(cube);
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final depth = textureProjection.getDepthWritePixelBuffer();
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await savePixelBufferToBmp(
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depth, 512, 512, "${testHelper.outDir.path}/depth_$i.bmp");
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final projected = textureProjection.getProjectedPixelBuffer();
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await savePixelBufferToBmp(
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depth, 512, 512, "${testHelper.outDir.path}/projected_$i.bmp");
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await cube.setMaterialInstanceAt(ubershader);
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final data = await projectedImage.getData();
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data.setRange(0, data.length, projected.buffer.asFloat32List());
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await projectedTexture.setLinearImage(
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projectedImage,
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PixelDataFormat.RGBA,
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PixelDataType.FLOAT,
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);
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await ubershader.setParameterTexture(
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"baseColorMap",
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projectedTexture,
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sampler,
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);
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await testHelper.capture(viewer.view, "capture_uv_retextured_$i");
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await ubershader.setParameterTexture(
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"baseColorMap", originalTexture, sampler);
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}
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}, createRenderTarget: true);
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});
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});
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}
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