3D texture tests
This commit is contained in:
Nick Fisher
@@ -1,13 +1,18 @@
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@Timeout(const Duration(seconds: 600))
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import 'dart:ffi';
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import 'dart:io';
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import 'dart:math';
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import 'dart:typed_data';
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import 'package:test/test.dart';
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import 'package:thermion_dart/thermion_dart.dart';
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import 'package:vector_math/vector_math_64.dart';
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import 'helpers.dart';
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void main() async {
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final testHelper = TestHelper("material");
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group("image", () {
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test('set texture from decoded image', () async {
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test('create 2D texture & set from decoded image', () async {
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await testHelper.withViewer((viewer) async {
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var imageData =
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File("${testHelper.testDir}/assets/cube_texture_512x512.png")
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@@ -26,7 +31,7 @@ void main() async {
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}, bg: kRed);
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});
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test('setImage', () async {
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test('create 2D texture and set image from raw buffer', () async {
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await testHelper.withViewer((viewer) async {
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var imageData =
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File("${testHelper.testDir}/assets/cube_texture_512x512.png")
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@@ -40,15 +45,78 @@ void main() async {
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await image.getWidth(), await image.getHeight(),
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textureFormat: TextureFormat.RGBA32F);
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var data = await image.getData();
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await texture.setImage(
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0,
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data.buffer.asUint8List(data.offsetInBytes),
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512, 512, 4, PixelDataFormat.RGBA, PixelDataType.FLOAT
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);
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await texture.setImage(0, data.buffer.asUint8List(data.offsetInBytes),
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512, 512, 4, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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await texture.dispose();
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}, bg: kRed);
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});
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test('create 3D texture and set image from buffers', () async {
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await testHelper.withViewer((viewer) async {
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final width = 128;
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final height = 128;
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final channels = 4;
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final depth = 5;
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final texture = await viewer.createTexture(width, height,
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depth: depth,
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textureSamplerType: TextureSamplerType.SAMPLER_3D,
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textureFormat: TextureFormat.RGBA32F);
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for (int i = 0; i < depth; i++) {
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final buffer = Uint8List(width * height * channels * sizeOf<Float>());
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await texture.setImage3D(0, 0, 0, i, width, height, channels, 1,
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buffer, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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}
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await texture.dispose();
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}, bg: kRed);
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});
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test('apply 3D texture material ', () async {
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await testHelper.withViewer((viewer) async {
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final material = await viewer.createMaterial(File(
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"/Users/nickfisher/Documents/thermion/materials/texture_array.filamat")
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.readAsBytesSync());
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final materialInstance = await material.createInstance();
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final sampler = await viewer.createTextureSampler();
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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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materialInstances: [materialInstance]);
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final width = 1;
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final height = 1;
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final channels = 4;
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final numTextures = 2;
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final texture = await viewer.createTexture(width, height,
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depth: numTextures,
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textureSamplerType: TextureSamplerType.SAMPLER_3D,
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textureFormat: TextureFormat.RGBA32F);
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for (int i = 0; i < numTextures; i++) {
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var pixelBuffer = Float32List.fromList(
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[i == 0 ? 1.0 : 0.0, i == 1 ? 1.0 : 0.0, 0.0, 1.0]);
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var byteBuffer =
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pixelBuffer.buffer.asUint8List(pixelBuffer.offsetInBytes);
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await texture.setImage3D(0, 0, 0, i, width, height, channels, 1,
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byteBuffer, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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}
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await materialInstance.setParameterTexture(
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"textures", texture, sampler);
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await materialInstance.setParameterInt("activeTexture", 0);
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await testHelper.capture(viewer, "3d_texture_0");
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await materialInstance.setParameterInt("activeTexture", 1);
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await testHelper.capture(viewer, "3d_texture_1");
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await viewer.destroyAsset(cube);
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await materialInstance.dispose();
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await material.dispose();
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await texture.dispose();
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});
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});
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});
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group("sampler", () {
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@@ -58,4 +126,258 @@ void main() async {
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}, bg: kRed);
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});
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});
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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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// setup base material + geometry
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final sampler = await viewer.createTextureSampler();
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var inputTextureData =
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File("${testHelper.testDir}/assets/cube_texture2_512x512.png")
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.readAsBytesSync();
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var inputImage = await viewer.decodeImage(inputTextureData);
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var inputTexture = await viewer.createTexture(
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await inputImage.getWidth(), await inputImage.getHeight(),
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textureFormat: TextureFormat.RGBA32F);
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await inputTexture.setLinearImage(
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inputImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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var material =
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await viewer.createUbershaderMaterialInstance(unlit: true);
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// var material =
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// await viewer.createUnlitMaterialInstance();
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await material.setParameterInt("baseColorIndex", 0);
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await material.setParameterTexture(
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"baseColorMap", inputTexture, sampler);
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await material.setParameterFloat4(
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"baseColorFactor", 1.0, 1.0, 1.0, 1.0);
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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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materialInstances: [material]);
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await cube.removeFromScene();
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var objects = {"cube": cube};
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// setup render target
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final view = await viewer.getViewAt(0);
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final rtTextureHandle = await testHelper.createTexture(512, 512);
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final rt = await viewer.createRenderTarget(
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512, 512, rtTextureHandle.metalTextureAddress);
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await view.setRenderTarget(rt);
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var captureUvMaterial = await viewer.createMaterial(File(
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"/Users/nickfisher/Documents/thermion/materials/capture_uv.filamat")
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.readAsBytesSync());
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expect(await captureUvMaterial.hasParameter("flipUVs"), true);
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var captureUvMaterialInstance =
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await captureUvMaterial.createInstance();
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await captureUvMaterialInstance.setParameterBool("flipUVs", false);
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await captureUvMaterialInstance.setParameterTexture(
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"color", await rt.getColorTexture(), sampler);
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for (final entry in objects.entries) {
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final object = entry.value;
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final key = entry.key;
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await object.addToScene();
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var divisions = 8;
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for (int i = 0; i < divisions; i++) {
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var matrix = makeViewMatrix(
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Vector3(sin(i / divisions * pi) * 5, 0,
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cos(i / divisions * pi) * 5),
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Vector3.zero(),
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Vector3(0, 1, 0));
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matrix.invert();
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await viewer.setCameraModelMatrix4(matrix);
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await testHelper.capture(viewer, "color_${key}_$i",
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renderTarget: rt);
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await object.setMaterialInstanceAt(captureUvMaterialInstance);
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var projected = await testHelper
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.capture(viewer, "uv_capture_${key}_$i", renderTarget: rt);
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var floatPixelBuffer = Float32List.fromList(
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projected.map((p) => p.toDouble() / 255.0).toList());
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final reappliedImage = await viewer.createImage(512, 512, 4);
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final data = await reappliedImage.getData();
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data.setRange(0, data.length, floatPixelBuffer);
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final reappliedTexture = await viewer.createTexture(512, 512,
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textureFormat: TextureFormat.RGBA32F);
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await reappliedTexture.setLinearImage(
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reappliedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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await material.setParameterTexture(
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"baseColorMap", reappliedTexture, sampler);
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await object.setMaterialInstanceAt(material);
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await testHelper.capture(viewer, "retextured_${key}_$i",
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renderTarget: rt);
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await material.setParameterTexture(
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"baseColorMap", inputTexture, sampler);
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}
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await viewer.destroyAsset(object);
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}
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// cleanup
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await sampler.dispose();
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await captureUvMaterialInstance.dispose();
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await captureUvMaterial.dispose();
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}, viewportDimensions: (width: 512, height: 512));
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});
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test('view dependent texture mapping', () async {
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await testHelper.withViewer((viewer) async {
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final sampler = await viewer.createTextureSampler();
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final numCameraPositions = 3;
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final textureDims = (width: 1, height: 1, channels: 4);
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var texture = await viewer.createTexture(
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textureDims.width, textureDims.height,
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textureSamplerType: TextureSamplerType.SAMPLER_3D,
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depth: numCameraPositions,
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textureFormat: TextureFormat.RGBA32F);
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for (int i = 0; i < numCameraPositions; i++) {
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final pixelBuffer = Float32List.fromList(
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[1 - (i/ numCameraPositions), i / numCameraPositions, 0.0, 1.0]);
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var byteBuffer =
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pixelBuffer.buffer.asUint8List(pixelBuffer.offsetInBytes);
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await texture.setImage3D(
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0,
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0,
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0,
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i,
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textureDims.width,
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textureDims.height,
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textureDims.channels,
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1,
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byteBuffer,
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PixelDataFormat.RGBA,
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PixelDataType.FLOAT);
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}
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final vdtm = await viewer.createMaterial(
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File("/Users/nickfisher/Documents/thermion/materials/vdtm.filamat")
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.readAsBytesSync());
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final materialInstance = await vdtm.createInstance();
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await materialInstance.setParameterTexture(
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"perspectives", texture, sampler);
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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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materialInstances: [materialInstance]);
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final cameraPositions = [Vector3(0, 0, 5), Vector3(0, 0, -5)];
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await materialInstance.setParameterFloat3Array(
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"cameraPositions", cameraPositions);
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for (int i = 0; i < 8; i++) {
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final cameraPosition = Vector3(sin(pi * (i / 7)) * 5, 0, cos(pi * (i / 7))* 5 );
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final viewMatrix =
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makeViewMatrix(cameraPosition, Vector3.zero(), Vector3(0, 1, 0));
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viewMatrix.invert();
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await viewer.setCameraModelMatrix4(viewMatrix);
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await testHelper.capture(viewer, "view_dependent_texture_mapping_$i");
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}
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// // var material =
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// // await viewer.createUnlitMaterialInstance();
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// await material.setParameterInt("baseColorIndex", 0);
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// await material.setParameterTexture(
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// "baseColorMap", inputTexture, sampler);
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// await material.setParameterFloat4(
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// "baseColorFactor", 1.0, 1.0, 1.0, 1.0);
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// // final plane = await viewer.createGeometry(
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// // GeometryHelper.plane(width: 3, height: 3),
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// // materialInstances: [material]);
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// // await plane.removeFromScene();
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// // var cube = await viewer
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// // .loadGlb("file://${testHelper.testDir}/assets/cube.glb");
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// // await cube.setMaterialInstanceAt(material);
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// final cube = await viewer.createGeometry(GeometryHelper.cube(),
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// materialInstances: [material]);
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// await cube.removeFromScene();
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// var objects = {
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// // "plane": plane,
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// "cube": cube
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// };
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// // setup render target
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// final view = await viewer.getViewAt(0);
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// final rtTextureHandle = await testHelper.createTexture(512, 512);
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// final rt = await viewer.createRenderTarget(
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// 512, 512, rtTextureHandle.metalTextureAddress);
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// await view.setRenderTarget(rt);
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// var captureUvMaterial = await viewer.createMaterial(File(
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// "/Users/nickfisher/Documents/thermion/materials/capture_uv.filamat")
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// .readAsBytesSync());
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// expect(await captureUvMaterial.hasParameter("flipUVs"), true);
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// var captureUvMaterialInstance =
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// await captureUvMaterial.createInstance();
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// await captureUvMaterialInstance.setParameterBool("flipUVs", false);
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// await captureUvMaterialInstance.setParameterTexture(
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// "color", await rt.getColorTexture(), sampler);
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// for (final entry in objects.entries) {
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// final object = entry.value;
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// final key = entry.key;
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// await object.addToScene();
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// var divisions = 8;
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// for (int i = 0; i < divisions; i++) {
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// var matrix = makeViewMatrix(
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// Vector3(sin(i / divisions * pi) * 5, 0,
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// cos(i / divisions * pi) * 5),
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// Vector3.zero(),
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// Vector3(0, 1, 0));
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// matrix.invert();
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// await viewer.setCameraModelMatrix4(matrix);
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// await testHelper.capture(viewer, "color_${key}_$i",
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// renderTarget: rt);
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// // continue;
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// await object.setMaterialInstanceAt(captureUvMaterialInstance);
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// var projected = await testHelper
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// .capture(viewer, "uv_capture_${key}_$i", renderTarget: rt);
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// // File("/tmp/projected_texture.bmp")
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// // .writeAsBytesSync(await pixelBufferToBmp(projected, 512, 512));
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// var floatPixelBuffer = Float32List.fromList(
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// projected.map((p) => p.toDouble() / 255.0).toList());
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// final reappliedImage = await viewer.createImage(512, 512, 4);
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// final data = await reappliedImage.getData();
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// data.setRange(0, data.length, floatPixelBuffer);
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// final reappliedTexture = await viewer.createTexture(512, 512,
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// textureFormat: TextureFormat.RGBA32F);
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// await reappliedTexture.setLinearImage(
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// reappliedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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// await material.setParameterTexture(
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// "baseColorMap", reappliedTexture, sampler);
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// await object.setMaterialInstanceAt(material);
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// await testHelper.capture(viewer, "retextured_${key}_$i",
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// renderTarget: rt);
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// await material.setParameterTexture(
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// "baseColorMap", inputTexture, sampler);
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// }
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// await viewer.destroyAsset(object);
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// }
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// // cleanup
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// await sampler.dispose();
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// await captureUvMaterialInstance.dispose();
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// await captureUvMaterial.dispose();
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}, viewportDimensions: (width: 512, height: 512));
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});
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});
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}
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