more VDTM work
This commit is contained in:
Nick Fisher
@@ -128,255 +128,279 @@ void main() async {
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});
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});
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group('projection', () {
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group('projection', () {
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test('project texture & UV unwrap', () async {
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Future withProjectionMaterial(
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await testHelper.withViewer((viewer) async {
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ThermionViewer viewer,
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// setup base material + geometry
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Future Function(TextureSampler sampler, MaterialInstance mi,
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final sampler = await viewer.createTextureSampler();
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RenderTarget rt, int width, int height)
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var inputTextureData =
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fn) async {
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File("${testHelper.testDir}/assets/cube_texture2_512x512.png")
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// setup render target
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.readAsBytesSync();
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final view = await viewer.getViewAt(0);
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var inputImage = await viewer.decodeImage(inputTextureData);
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final vp = await view.getViewport();
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var inputTexture = await viewer.createTexture(
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;
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await inputImage.getWidth(), await inputImage.getHeight(),
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final rtTextureHandle = await testHelper.createTexture(512, 512);
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textureFormat: TextureFormat.RGBA32F);
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final (viewportWidth, viewportHeight) = (vp.width, vp.height);
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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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final rt = await viewer.createRenderTarget(
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// await viewer.createUnlitMaterialInstance();
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viewportWidth, viewportHeight, rtTextureHandle.metalTextureAddress);
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await view.setRenderTarget(rt);
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// setup base material + geometry
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final sampler = await viewer.createTextureSampler();
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var projectionMaterial = 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 projectionMaterial.hasParameter("flipUVs"), true);
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var projectionMaterialInstance =
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await projectionMaterial.createInstance();
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await projectionMaterialInstance.setParameterBool("flipUVs", true);
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await projectionMaterialInstance.setParameterTexture(
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"color", await rt.getColorTexture(), sampler);
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await fn(sampler, projectionMaterialInstance, rt, viewportWidth,
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viewportHeight);
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// cleanup
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await sampler.dispose();
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await projectionMaterialInstance.dispose();
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await projectionMaterial.dispose();
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}
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Future withCube(
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ThermionViewer viewer,
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Future Function(ThermionAsset asset, MaterialInstance mi,
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Future Function() resetMaterial)
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fn) async {
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// var material = await viewer.createUbershaderMaterialInstance(unlit: true);
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var material = await viewer.createUnlitMaterialInstance();
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final cube = await viewer
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.createGeometry(GeometryHelper.cube(), materialInstances: [material]);
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var 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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final resetMaterial = () async {
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await material.setParameterInt("baseColorIndex", 0);
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await material.setParameterInt("baseColorIndex", 0);
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await material.setParameterTexture(
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await material.setParameterTexture(
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"baseColorMap", inputTexture, sampler);
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"baseColorMap", inputTexture, sampler);
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await material.setParameterFloat4(
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await material.setParameterFloat4(
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"baseColorFactor", 1.0, 1.0, 1.0, 1.0);
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"baseColorFactor", 1.0, 1.0, 1.0, 1.0);
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};
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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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await fn(cube, material, resetMaterial);
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materialInstances: [material]);
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}
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await cube.removeFromScene();
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test('project texture & UV unwrap', () async {
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var objects = {"cube": cube};
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await testHelper.withViewer((viewer) async {
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final camera = await viewer.getMainCamera();
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await withProjectionMaterial(viewer,
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(sampler, projectionMaterialInstance, rt, width, height) async {
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await withCube(viewer, (cube, ubershader, resetMaterial) async {
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var objects = {"cube": cube};
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// setup render target
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for (final entry in objects.entries) {
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final view = await viewer.getViewAt(0);
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final object = entry.value;
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final rtTextureHandle = await testHelper.createTexture(512, 512);
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final key = entry.key;
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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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await object.addToScene();
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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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var divisions = 8;
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"color", await rt.getColorTexture(), sampler);
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for (int i = 0; i < divisions; i++) {
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await camera.lookAt(Vector3(sin(i / divisions * pi) * 5, 0,
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cos(i / divisions * pi) * 5));
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for (final entry in objects.entries) {
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await testHelper.capture(viewer, "color_${key}_$i",
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final object = entry.value;
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renderTarget: rt);
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final key = entry.key;
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await object.addToScene();
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await object.setMaterialInstanceAt(projectionMaterialInstance);
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var divisions = 8;
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var projectionOutput = await testHelper
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for (int i = 0; i < divisions; i++) {
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.capture(viewer, "uv_capture_${key}_$i", renderTarget: rt);
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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 floatPixelBuffer = Float32List.fromList(
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projectionOutput.map((p) => p.toDouble() / 255.0).toList());
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var projected = await testHelper
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final projectedImage = await viewer.createImage(512, 512, 4);
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.capture(viewer, "uv_capture_${key}_$i", renderTarget: rt);
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final data = await projectedImage.getData();
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data.setRange(0, data.length, floatPixelBuffer);
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final projectedTexture = await viewer.createTexture(512, 512,
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textureFormat: TextureFormat.RGBA32F);
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await projectedTexture.setLinearImage(
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projectedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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var floatPixelBuffer = Float32List.fromList(
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await ubershader.setParameterTexture(
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projected.map((p) => p.toDouble() / 255.0).toList());
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"baseColorMap", projectedTexture, sampler);
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await object.setMaterialInstanceAt(ubershader);
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final reappliedImage = await viewer.createImage(512, 512, 4);
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await testHelper.capture(viewer, "retextured_${key}_$i",
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final data = await reappliedImage.getData();
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renderTarget: rt);
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data.setRange(0, data.length, floatPixelBuffer);
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await resetMaterial();
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final reappliedTexture = await viewer.createTexture(512, 512,
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}
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textureFormat: TextureFormat.RGBA32F);
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await viewer.destroyAsset(object);
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await reappliedTexture.setLinearImage(
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}
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reappliedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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});
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});
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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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}, viewportDimensions: (width: 512, height: 512));
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});
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});
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test('view dependent texture mapping', () async {
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Future usingVDTM(
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ThermionViewer viewer,
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List<Vector3> cameraPositions,
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int width,
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int height,
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int channels,
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Future Function(Texture texture, MaterialInstance mi) fn) async {
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final sampler = await viewer.createTextureSampler();
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final numCameraPositions = 3;
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var texture = await viewer.createTexture(width, 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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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.setParameterFloat3Array(
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"cameraPositions", cameraPositions);
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await materialInstance.setParameterTexture(
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"perspectives", texture, sampler);
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await fn(texture, materialInstance);
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await materialInstance.dispose();
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await vdtm.dispose();
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await texture.dispose();
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await sampler.dispose();
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}
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test('view dependent texture mapping (interpolated colors)', () async {
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await testHelper.withViewer((viewer) async {
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await testHelper.withViewer((viewer) async {
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final sampler = await viewer.createTextureSampler();
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final cameraPositions = [
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final numCameraPositions = 3;
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Vector3(0, 0, 5),
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final textureDims = (width: 1, height: 1, channels: 4);
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Vector3(5, 0, 0),
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Vector3(0, 0, -5)
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];
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final camera = await viewer.getMainCamera();
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var texture = await viewer.createTexture(
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final (numCameraPositions, width, height, channels) =
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textureDims.width, textureDims.height,
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(cameraPositions.length, 1, 1, 1);
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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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usingVDTM(viewer, cameraPositions, width, height, channels,
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final pixelBuffer = Float32List.fromList(
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(texture, materialInstance) async {
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[1 - (i/ numCameraPositions), i / numCameraPositions, 0.0, 1.0]);
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for (int i = 0; i < numCameraPositions; i++) {
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var byteBuffer =
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final pixelBuffer = Float32List.fromList([
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pixelBuffer.buffer.asUint8List(pixelBuffer.offsetInBytes);
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1 - (i / numCameraPositions),
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await texture.setImage3D(
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i / numCameraPositions,
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0,
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0.0,
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0,
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1.0
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0,
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]);
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i,
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var byteBuffer =
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textureDims.width,
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pixelBuffer.buffer.asUint8List(pixelBuffer.offsetInBytes);
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textureDims.height,
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await texture.setImage3D(0, 0, 0, i, width, height, channels, 1,
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textureDims.channels,
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byteBuffer, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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1,
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}
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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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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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await materialInstance.setParameterTexture(
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materialInstances: [materialInstance]);
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"perspectives", texture, sampler);
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final cube = await viewer.createGeometry(GeometryHelper.cube(),
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for (int i = 0; i < 8; i++) {
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materialInstances: [materialInstance]);
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final cameraPosition =
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Vector3(sin(pi * (i / 7)) * 5, 0, cos(pi * (i / 7)) * 5);
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await camera.lookAt(cameraPosition);
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await testHelper.capture(
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viewer, "view_dependent_texture_mapping_$i");
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}
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});
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}, viewportDimensions: (width: 512, height: 512));
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});
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final cameraPositions = [Vector3(0, 0, 5), Vector3(5, 0, 0), Vector3(0, 0, -5)];
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test('VDTM + Texture Projection', () async {
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await materialInstance.setParameterFloat3Array(
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await testHelper.withViewer((viewer) async {
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"cameraPositions", cameraPositions);
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final cameraPositions = [
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Vector3(0, 0, 5),
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Vector3(5, 0, 0),
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Vector3(0, 0, -5)
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];
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for (int i = 0; i < 8; i++) {
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final camera = await viewer.getMainCamera();
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final cameraPosition = Vector3(sin(pi * (i / 7)) * 5, 0, cos(pi * (i / 7))* 5 );
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final viewMatrix =
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makeViewMatrix(cameraPosition, Vector3.zero(), Vector3(0, 1, 0));
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viewMatrix.invert();
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await viewer.setCameraModelMatrix4(viewMatrix);
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await testHelper.capture(viewer, "view_dependent_texture_mapping_$i");
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await withProjectionMaterial(viewer, (TextureSampler projectionSampler,
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}
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MaterialInstance projectionMaterialInstance,
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RenderTarget rt,
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int width,
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int height) async {
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await withCube(viewer, (cube, ubershader, resetMaterial) async {
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var pixelBuffers = <Float32List>[];
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for (int i = 0; i < cameraPositions.length; i++) {
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await camera.lookAt(cameraPositions[i]);
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// // var material =
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await testHelper.capture(viewer, "vdtm_$i", renderTarget: rt);
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// // await viewer.createUnlitMaterialInstance();
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// await material.setParameterInt("baseColorIndex", 0);
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// await material.setParameterTexture(
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// "baseColorMap", inputTexture, sampler);
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// await material.setParameterFloat4(
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// "baseColorFactor", 1.0, 1.0, 1.0, 1.0);
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// // final plane = await viewer.createGeometry(
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// // GeometryHelper.plane(width: 3, height: 3),
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// // materialInstances: [material]);
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// // await plane.removeFromScene();
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// // var cube = await viewer
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// // .loadGlb("file://${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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await cube.setMaterialInstanceAt(projectionMaterialInstance);
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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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var projectionOutput = await testHelper
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// final view = await viewer.getViewAt(0);
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.capture(viewer, "vdtm_unwrapped_$i", renderTarget: rt);
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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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var floatPixelBuffer = Float32List.fromList(
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// "/Users/nickfisher/Documents/thermion/materials/capture_uv.filamat")
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projectionOutput.map((p) => p.toDouble() / 255.0).toList());
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// .readAsBytesSync());
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pixelBuffers.add(floatPixelBuffer);
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// expect(await captureUvMaterial.hasParameter("flipUVs"), true);
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final projectedImage = await viewer.createImage(width, height, 4);
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// var captureUvMaterialInstance =
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final data = await projectedImage.getData();
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// await captureUvMaterial.createInstance();
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data.setRange(0, data.length, floatPixelBuffer);
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// await captureUvMaterialInstance.setParameterBool("flipUVs", false);
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final projectedTexture = await viewer.createTexture(width, height,
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textureFormat: TextureFormat.RGBA32F);
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await projectedTexture.setLinearImage(
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projectedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
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|
|
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// await captureUvMaterialInstance.setParameterTexture(
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await ubershader.setParameterTexture(
|
||||||
// "color", await rt.getColorTexture(), sampler);
|
"baseColorMap", projectedTexture, projectionSampler);
|
||||||
|
await cube.setMaterialInstanceAt(ubershader);
|
||||||
|
|
||||||
// for (final entry in objects.entries) {
|
await testHelper.capture(viewer, "vdtm_projected_$i",
|
||||||
// final object = entry.value;
|
renderTarget: rt);
|
||||||
// final key = entry.key;
|
|
||||||
|
|
||||||
// await object.addToScene();
|
await resetMaterial();
|
||||||
|
}
|
||||||
|
|
||||||
// var divisions = 8;
|
await usingVDTM(viewer, cameraPositions, width, height, 4,
|
||||||
// for (int i = 0; i < divisions; i++) {
|
(vdtmTexture, vdtmMaterial) async {
|
||||||
// var matrix = makeViewMatrix(
|
await cube.setMaterialInstanceAt(vdtmMaterial);
|
||||||
// Vector3(sin(i / divisions * pi) * 5, 0,
|
for (int i = 0; i < cameraPositions.length; i++) {
|
||||||
// cos(i / divisions * pi) * 5),
|
await vdtmTexture.setImage3D(
|
||||||
// Vector3.zero(),
|
0,
|
||||||
// Vector3(0, 1, 0));
|
0,
|
||||||
// matrix.invert();
|
0,
|
||||||
// await viewer.setCameraModelMatrix4(matrix);
|
i,
|
||||||
// await testHelper.capture(viewer, "color_${key}_$i",
|
width,
|
||||||
// renderTarget: rt);
|
height,
|
||||||
// // continue;
|
4,
|
||||||
|
1,
|
||||||
|
pixelBuffers[i]
|
||||||
|
.buffer
|
||||||
|
.asUint8List(pixelBuffers[i].offsetInBytes),
|
||||||
|
PixelDataFormat.RGBA,
|
||||||
|
PixelDataType.FLOAT);
|
||||||
|
}
|
||||||
|
|
||||||
// await object.setMaterialInstanceAt(captureUvMaterialInstance);
|
for (int i = 0; i < 8; i++) {
|
||||||
|
await camera.lookAt(
|
||||||
// var projected = await testHelper
|
Vector3(sin(pi * (i / 7)) * 5, 0, cos(pi * (i / 7)) * 5));
|
||||||
// .capture(viewer, "uv_capture_${key}_$i", renderTarget: rt);
|
await testHelper.capture(viewer, "vdtm_reprojected_$i",
|
||||||
// // File("/tmp/projected_texture.bmp")
|
renderTarget: rt);
|
||||||
// // .writeAsBytesSync(await pixelBufferToBmp(projected, 512, 512));
|
}
|
||||||
// var floatPixelBuffer = Float32List.fromList(
|
});
|
||||||
// projected.map((p) => p.toDouble() / 255.0).toList());
|
});
|
||||||
|
});
|
||||||
// final reappliedImage = await viewer.createImage(512, 512, 4);
|
|
||||||
// final data = await reappliedImage.getData();
|
|
||||||
// data.setRange(0, data.length, floatPixelBuffer);
|
|
||||||
// final reappliedTexture = await viewer.createTexture(512, 512,
|
|
||||||
// textureFormat: TextureFormat.RGBA32F);
|
|
||||||
// await reappliedTexture.setLinearImage(
|
|
||||||
// reappliedImage, PixelDataFormat.RGBA, PixelDataType.FLOAT);
|
|
||||||
|
|
||||||
// await material.setParameterTexture(
|
|
||||||
// "baseColorMap", reappliedTexture, sampler);
|
|
||||||
// await object.setMaterialInstanceAt(material);
|
|
||||||
// await testHelper.capture(viewer, "retextured_${key}_$i",
|
|
||||||
// renderTarget: rt);
|
|
||||||
// await material.setParameterTexture(
|
|
||||||
// "baseColorMap", inputTexture, sampler);
|
|
||||||
// }
|
|
||||||
// await viewer.destroyAsset(object);
|
|
||||||
// }
|
|
||||||
|
|
||||||
// // cleanup
|
|
||||||
|
|
||||||
// await sampler.dispose();
|
|
||||||
// await captureUvMaterialInstance.dispose();
|
|
||||||
// await captureUvMaterial.dispose();
|
|
||||||
}, viewportDimensions: (width: 512, height: 512));
|
}, viewportDimensions: (width: 512, height: 512));
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
|
|||||||
Reference in New Issue
Block a user