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projection work + tests

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This commit is contained in:
Nick Fisher
2025-03-28 10:01:00 +08:00
parent e8169e86d1
commit cd1c2f3827
8 changed files with 687 additions and 39 deletions
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4
materials/capture_uv.mat
View File

@@ -100,8 +100,8 @@ fragment {
//material.baseColor = vec4(sampledDepth.r, 0.0, 0.0, 1.0);
//material.baseColor = vec4(vertexDepth, 0.0, 0.0, 1.0);
if(materialParams.useDepth && abs(vertexDepth - sampledDepth.r) > 0.001) {
discard;
if(materialParams.useDepth && (sampledDepth.r < 0.0001 || abs(vertexDepth - sampledDepth.r) > 0.001)) {
material.baseColor = vec4(0.0, 0.0, 0.0, 0.0);
} else {
vec2 texSize = vec2(textureSize(materialParams_color, 0));
vec4 color = textureLod(materialParams_color, uvToRenderTargetUV(deviceCoords.xy), 0.0f);

63
materials/vdtm.mat
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@@ -8,7 +8,7 @@ material {
},
{
type : float3[3],
name : cameraPositions
name : cameraForwardVectors
},
{
type : bool,
@@ -17,8 +17,8 @@ material {
],
variables : [
{
type : float3,
name : blendWeights,
type : float,
name : samplerCoord,
}
],
requires : [ position, uv0 ],
@@ -43,42 +43,57 @@ material {
// Parameters:
// - perspectives: 3D texture containing different perspective views of the object
// - cameraPositions: Array of camera positions used to render each perspective slice
vertex {
void materialVertex(inout MaterialVertexInputs material) {
vec3 worldCameraPos = getWorldCameraPosition();
vec4 currentCameraPos = getUserWorldFromWorldMatrix() * vec4(worldCameraPos, 1.0);
vec3 forward = -(normalize(getWorldFromViewMatrix()[2].xyz));
vec3 weights = vec3(0.0, 0.0, 0.0);
int idxMax = 0;
float weightMax = 0.0;
for(int i = 0; i < 3; i++) {
weights[i] = dot(forward, materialParams.cameraForwardVectors[i]);
if(weights[i] > weightMax) {
weightMax = weights[i];
idxMax = i;
}
}
if(idxMax == 0) {
float z = (weights.y * 0.5) + (weights.z * 1.0);
}
//weights /= (weights.x + weights.y + weights.z);
material.blendWeights.xyz = vec3(0.0f);
float totalWeight = 0.0;
for (int i = 0; i < 3; i++) {
vec3 cameraPos = materialParams.cameraPositions[i];
float dist = distance(currentCameraPos.xyz, cameraPos);
material.blendWeights[i] = exp(-dist);
totalWeight += material.blendWeights[i];
}
if (totalWeight > 0.0) {
material.blendWeights /= totalWeight;
}
//material.blendWeights.x = exp(-distance(currentCameraPos.xyz, materialParams.cameraPositions[0]));
material.samplerCoord.x = z;
}
}
fragment {
void useMax(vec3 forward) {
float maxIdx = 0.0f;
float maxWeight = 0.0f;
for(int i =0; i < 3; i++) {
float weight = dot(forward, materialParams.cameraForwardVectors[i]);
if(weight > maxWeight) {
maxWeight = weight;
maxIdx = float(i) / 2.0f;
}
}
float z = maxIdx;
}
void material(inout MaterialInputs material) {
prepareMaterial(material);
vec3 weights = variable_blendWeights.xyz;
float z = (weights.x * 0.0) + (weights.y * 0.5) + (weights.z * 1.0);
vec2 uv = getUV0();
if(materialParams.flipUVs) {
uv = uvToRenderTargetUV(uv);
}
vec3 texCoord = vec3(uv, z);
vec3 texCoord = vec3(uv, variable_samplerCoord.x);
material.baseColor = texture(materialParams_perspectives, texCoord);
}
}

46
thermion_dart/test/asset_tests.dart
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@@ -9,24 +9,28 @@ void main() async {
group("assets", () {
test('load/clear skybox', () async {
await testHelper.withViewer((viewer) async {
final camera = await viewer.getActiveCamera();
print(await camera.getModelMatrix());
print(await camera.getViewMatrix());
print(await camera.getProjectionMatrix());
await camera.lookAt(Vector3(0, 0, 10),
focus: Vector3.zero(), up: Vector3(0, 1, 0));
await viewer.loadSkybox(
"file://${testHelper.testDir}/assets/default_env_skybox.ktx");
await testHelper.capture(viewer.view, "load_skybox");
await viewer.removeSkybox();
await testHelper.capture(viewer.view, "remove_skybox");
});
await viewer.setPostProcessing(true);
await viewer.setBloom(false, 0.01);
await viewer.loadSkybox(
"file://${testHelper.testDir}/assets/default_env_skybox.ktx");
await testHelper.capture(
viewer.view, "load_skybox_with_postprocessing");
await viewer.removeSkybox();
await testHelper.capture(
viewer.view, "remove_skybox_with_postprocessing");
}, createRenderTarget: true);
});
test('load/remove ibl', () async {
await testHelper.withViewer((viewer) async {
var asset = await viewer
.loadGlb("file://${testHelper.testDir}/assets/cube.glb");
.loadGltf("file://${testHelper.testDir}/assets/cube.glb");
await viewer
.loadIbl("file://${testHelper.testDir}/assets/default_env_ibl.ktx");
await testHelper.capture(viewer.view, "ibl_loaded");
@@ -37,8 +41,9 @@ void main() async {
test('load/remove gltf', () async {
await testHelper.withViewer((viewer) async {
var asset = await viewer
.loadGlb("file://${testHelper.testDir}/assets/cube.gltf", relativeResourcePath: "${testHelper.testDir}/assets");
var asset = await viewer.loadGltf(
"file://${testHelper.testDir}/assets/cube.gltf",
relativeResourcePath: "${testHelper.testDir}/assets");
await viewer
.loadIbl("file://${testHelper.testDir}/assets/default_env_ibl.ktx");
await testHelper.capture(viewer.view, "gltf_loaded");
@@ -47,10 +52,26 @@ void main() async {
}, cameraPosition: Vector3(0, 0, 5));
});
test('transform gltf to unit cube', () async {
await testHelper.withViewer((viewer) async {
var asset = await viewer.loadGltf(
"file://${testHelper.testDir}/assets/cube.gltf",
relativeResourcePath: "${testHelper.testDir}/assets");
await viewer
.loadIbl("file://${testHelper.testDir}/assets/default_env_ibl.ktx");
await asset.setTransform(Matrix4.compose(
Vector3.zero(), Quaternion.identity(), Vector3.all(2)));
await testHelper.capture(viewer.view, "gltf_before_unit_cube");
await asset.transformToUnitCube();
await testHelper.capture(viewer.view, "gltf_after_unit_cube");
}, cameraPosition: Vector3(0, 0, 5));
});
test('add/remove asset from scene ', () async {
await testHelper.withViewer((viewer) async {
var asset = await viewer
.loadGlb("file://${testHelper.testDir}/assets/cube.glb");
.loadGltf("file://${testHelper.testDir}/assets/cube.glb");
await viewer
.loadIbl("file://${testHelper.testDir}/assets/default_env_ibl.ktx");
await testHelper.capture(viewer.view, "asset_added");
@@ -62,7 +83,7 @@ void main() async {
test('destroy assets', () async {
await testHelper.withViewer((viewer) async {
var asset = await viewer
.loadGlb("file://${testHelper.testDir}/assets/cube.glb");
.loadGltf("file://${testHelper.testDir}/assets/cube.glb");
await viewer
.loadIbl("file://${testHelper.testDir}/assets/default_env_ibl.ktx");
await testHelper.capture(viewer.view, "assets_present");
@@ -70,6 +91,5 @@ void main() async {
await testHelper.capture(viewer.view, "assets_destroyed");
}, cameraPosition: Vector3(0, 0, 5));
});
});
}

181
thermion_dart/test/assets/cube_texture2.svg Normal file
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@@ -0,0 +1,181 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
width="200"
height="200"
viewBox="0 0 1 1"
version="1.1"
id="svg10"
sodipodi:docname="cube_texture2.svg"
inkscape:export-filename="cube_texture2_512x512.png"
inkscape:export-xdpi="96"
inkscape:export-ydpi="96"
inkscape:version="1.4 (e7c3feb1, 2024-10-09)"
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns="http://www.w3.org/2000/svg"
xmlns:svg="http://www.w3.org/2000/svg">
<defs
id="defs10" />
<sodipodi:namedview
id="namedview10"
pagecolor="#ffffff"
bordercolor="#000000"
borderopacity="0.25"
inkscape:showpageshadow="2"
inkscape:pageopacity="0.0"
inkscape:pagecheckerboard="0"
inkscape:deskcolor="#d1d1d1"
inkscape:zoom="0.536875"
inkscape:cx="-6.5192084"
inkscape:cy="390.22119"
inkscape:window-width="1200"
inkscape:window-height="964"
inkscape:window-x="0"
inkscape:window-y="25"
inkscape:window-maximized="0"
inkscape:current-layer="svg10" />
<!-- Background Grid (optional, for visual aid) -->
<rect
x="0"
y="0"
width="1"
height="1"
fill="#f0f0f0"
id="rect1" />
<line
x1="0.333"
y1="0"
x2="0.333"
y2="1"
stroke="#ccc"
stroke-width="0.005"
id="line1" />
<line
x1="0.666"
y1="0"
x2="0.666"
y2="1"
stroke="#ccc"
stroke-width="0.005"
id="line2" />
<line
y1="0.25"
x1="0"
y2="0.25"
x2="1"
stroke="#ccc"
stroke-width="0.005"
id="line3" />
<line
y1="0.5"
x1="0"
y2="0.5"
x2="1"
stroke="#ccc"
stroke-width="0.005"
id="line4" />
<line
y1="0.75"
x1="0"
y2="0.75"
x2="1"
stroke="#ccc"
stroke-width="0.005"
id="line5" />
<!-- Front Face -->
<rect
x="0.333"
y="0"
width="0.333"
height="0.25"
fill="#ff0000"
id="rect5" />
<text
x="0.5"
y="0.125"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="white"
id="text5">Front</text>
<!-- Back Face -->
<rect
x="0.333"
y="0.5"
width="0.333"
height="0.25"
fill="#00ff00"
id="rect6" />
<text
x="0.5"
y="0.625"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="white"
id="text6">Back</text>
<!-- Top Face -->
<rect
x="0.666"
y="0.25"
width="0.333"
height="0.25"
fill="#0000ff"
id="rect7" />
<text
x="0.833"
y="0.375"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="white"
id="text7">Top</text>
<!-- Bottom Face -->
<rect
x="0"
y="0.25"
width="0.333"
height="0.25"
fill="#ffff00"
id="rect8" />
<text
x="0.166"
y="0.375"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="black"
id="text8">Bottom</text>
<!-- Right Face -->
<rect
x="0.333"
y="0.25"
width="0.333"
height="0.25"
fill="#ff00ff"
id="rect9" />
<text
x="0.5"
y="0.375"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="white"
id="text9">Right</text>
<!-- Left Face -->
<rect
x="0.333"
y="0.75"
width="0.333"
height="0.25"
fill="#00ffff"
id="rect10" />
<text
x="0.5"
y="0.875"
text-anchor="middle"
dominant-baseline="middle"
font-size="0.1"
fill="black"
id="text10">Left</text>
</svg>
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thermion_dart/test/assets/cube_texture2_512x512.png Normal file
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392
thermion_dart/test/depth_tests.dart Normal file
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@@ -0,0 +1,392 @@
@Timeout(const Duration(seconds: 600))
import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'dart:typed_data';
import 'package:test/test.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/callbacks.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_asset.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_camera.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_filament_app.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_material.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_render_target.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_scene.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_swapchain.dart';
import 'package:thermion_dart/src/viewer/src/ffi/src/ffi_view.dart';
import 'package:thermion_dart/thermion_dart.dart';
import 'helpers.dart';
void checkMinMaxPixelValues(Float32List pixelBuffer, int width, int height) {
var minVal = 99999.0;
var maxVal = 0.0;
for (var y = 0; y < height; y++) {
for (var x = 0; x < width; x++) {
for (int i = 0; i < 3; i++) {
final srcIndex = (y * width * 4) + (x * 4) + i;
if (pixelBuffer[srcIndex] == 0) {
continue;
}
minVal = min(minVal, pixelBuffer[srcIndex]);
maxVal = max(maxVal, pixelBuffer[srcIndex]);
}
}
}
print("minVal $minVal maxVal $maxVal");
}
void main() async {
final testHelper = TestHelper("depth");
await testHelper.setup();
test('write depth value to R32F texture', () async {
final viewportDimensions = (width: 512, height: 512);
var swapChain = await FilamentApp.instance!.createHeadlessSwapChain(
viewportDimensions.width, viewportDimensions.height) as FFISwapChain;
var color = await FilamentApp.instance!
.createTexture(viewportDimensions.width, viewportDimensions.height,
flags: {
TextureUsage.TEXTURE_USAGE_BLIT_SRC,
TextureUsage.TEXTURE_USAGE_COLOR_ATTACHMENT,
TextureUsage.TEXTURE_USAGE_SAMPLEABLE
},
textureFormat: TextureFormat.R32F);
var renderTarget = await FilamentApp.instance!.createRenderTarget(
viewportDimensions.width, viewportDimensions.height, color: color)
as FFIRenderTarget;
var view = await FilamentApp.instance!.createView() as FFIView;
await view.setPostProcessing(false);
await view.setRenderTarget(renderTarget);
await FilamentApp.instance!.setClearOptions(0.0, 1.0, 0.0, 1.0);
var scene = await FilamentApp.instance!.createScene() as FFIScene;
await view.setScene(scene);
await view.setViewport(viewportDimensions.width, viewportDimensions.height);
final camera = FFICamera(
await withPointerCallback<TCamera>((cb) =>
Engine_createCameraRenderThread(FilamentApp.instance!.engine, cb)),
FilamentApp.instance! as FFIFilamentApp);
await camera.setLensProjection();
await view.setCamera(camera);
await view.setFrustumCullingEnabled(false);
await camera.setLensProjection(near: 0.5, far: 10);
final dist = 2.0;
await camera.lookAt(
Vector3(
-0.5,
dist,
dist,
),
);
var mat = await FilamentApp.instance!.createMaterial(
File(
"/Users/nickfisher/Documents/thermion/materials/linear_depth.filamat",
).readAsBytesSync(),
);
var mi = await mat.createInstance();
await mi.setDepthCullingEnabled(true);
await mi.setDepthWriteEnabled(true);
await mi.setCullingMode(CullingMode.BACK);
var umi = await FilamentApp.instance!
.createUbershaderMaterialInstance(unlit: true);
var cube = await FilamentApp.instance!
.createGeometry(GeometryHelper.cube(), nullptr);
await scene.add(cube as FFIAsset);
await umi.setParameterFloat4("baseColorFactor", 1, 1, 1, 0);
await cube.setTransform(
Matrix4.compose(Vector3.zero(), Quaternion.identity(), Vector3.all(1)));
await cube.setMaterialInstanceAt(mi as FFIMaterialInstance);
await FilamentApp.instance!.register(swapChain, view);
var pixelBuffers = await testHelper.capture(null, "linear_depth",
swapChain: swapChain, pixelDataFormat: PixelDataFormat.R);
checkMinMaxPixelValues(pixelBuffers[view]!.buffer.asFloat32List(),
viewportDimensions.width, viewportDimensions.height);
});
test('check NDC depth value', () async {
final viewportDimensions = (width: 512, height: 512);
var swapChain = await FilamentApp.instance!.createHeadlessSwapChain(
viewportDimensions.width, viewportDimensions.height) as FFISwapChain;
var color = await FilamentApp.instance!
.createTexture(viewportDimensions.width, viewportDimensions.height,
flags: {
TextureUsage.TEXTURE_USAGE_BLIT_SRC,
TextureUsage.TEXTURE_USAGE_COLOR_ATTACHMENT,
TextureUsage.TEXTURE_USAGE_SAMPLEABLE
},
textureFormat: TextureFormat.R32F);
var renderTarget = await FilamentApp.instance!.createRenderTarget(
viewportDimensions.width, viewportDimensions.height, color: color)
as FFIRenderTarget;
var view = await FilamentApp.instance!.createView() as FFIView;
await view.setPostProcessing(false);
await view.setRenderTarget(renderTarget);
await FilamentApp.instance!.setClearOptions(0.0, 1.0, 0.0, 1.0);
var scene = await FilamentApp.instance!.createScene() as FFIScene;
await view.setScene(scene);
await view.setViewport(viewportDimensions.width, viewportDimensions.height);
final camera = FFICamera(
await withPointerCallback<TCamera>((cb) =>
Engine_createCameraRenderThread(FilamentApp.instance!.engine, cb)),
FilamentApp.instance! as FFIFilamentApp);
await camera.setLensProjection();
await view.setCamera(camera);
await view.setFrustumCullingEnabled(false);
await camera.setLensProjection(near: 0.5, far: 10);
final dist = 3.0;
await camera.lookAt(
Vector3(
-0.5,
dist,
dist,
),
);
var mat = await FilamentApp.instance!.createMaterial(
File(
"/Users/nickfisher/Documents/thermion/materials/ndc_depth.filamat",
).readAsBytesSync(),
);
var mi = await mat.createInstance();
await mi.setDepthCullingEnabled(true);
await mi.setDepthWriteEnabled(true);
await mi.setCullingMode(CullingMode.BACK);
var umi = await FilamentApp.instance!
.createUbershaderMaterialInstance(unlit: true);
var cube = await FilamentApp.instance!
.createGeometry(GeometryHelper.cube(), nullptr);
await scene.add(cube as FFIAsset);
await umi.setParameterFloat4("baseColorFactor", 1, 1, 1, 0);
await cube.setTransform(
Matrix4.compose(Vector3.zero(), Quaternion.identity(), Vector3.all(1)));
await cube.setMaterialInstanceAt(mi as FFIMaterialInstance);
await FilamentApp.instance!.register(swapChain, view);
var pixelBuffers = await testHelper.capture(null, "ndc_depth",
swapChain: swapChain, pixelDataFormat: PixelDataFormat.R);
checkMinMaxPixelValues(pixelBuffers[view]!.buffer.asFloat32List(),
viewportDimensions.width, viewportDimensions.height);
});
group('depth sampling', () {
test("depth sampling", () async {
await testHelper.withViewer((viewer) async {
await FilamentApp.instance!.setClearOptions(0, 0, 0, 1,
clearStencil: 0, discard: false, clear: true);
final camera = await viewer.getActiveCamera();
await camera.lookAt(Vector3(3, 3, 6));
final view = await testHelper.createView(testHelper.swapChain);
await testHelper.withCube(
viewer,
(cube) async {
var mat = await FilamentApp.instance!.createMaterial(
File(
"/Users/nickfisher/Documents/thermion/materials/depth_sampler.filamat",
).readAsBytesSync(),
);
final mi = await mat.createInstance();
await viewer.addToScene(cube);
final secondScene = await view.getScene();
await secondScene.add(cube);
final sampler = await FilamentApp.instance!.createTextureSampler();
final rt = await view.getRenderTarget();
final color = await rt!.getColorTexture();
final depth = await rt!.getDepthTexture();
await mi.setParameterTexture(
"depth",
depth,
await FilamentApp.instance!.createTextureSampler(
compareMode: TextureCompareMode.COMPARE_TO_TEXTURE,
),
);
await cube.setMaterialInstanceAt(mi);
await testHelper.capture(null, "depth_sampling1");
},
);
}, createRenderTarget: true);
});
});
}
// group('projection', () {
// test('project texture & UV unwrap', () async {
// await testHelper.withViewer((viewer) async {
// final camera = await viewer.getActiveCamera();
// await viewer.view.setFrustumCullingEnabled(false);
// await camera.setLensProjection(near: 0.01, far: 100);
// final dist = 26.0;
// await camera.lookAt(
// Vector3(
// -0.5,
// dist,
// dist,
// ),
// );
// await FilamentApp.instance!
// .unregister(testHelper.swapChain, viewer.view);
// await withView(testHelper.swapChain, viewer, (linearDepthView) async {
// await withView(testHelper.swapChain, viewer, (manualDepthView) async {
// await manualDepthView.setRenderOrder(1);
// await linearDepthView.setRenderOrder(0);
// await viewer.view.setRenderOrder(2);
// await withManualDepthMaterial(testHelper, viewer, (
// manualDepthMi,
// ) async {
// await withSampledDepthMaterial(testHelper, viewer, (
// sampledDepthMi,
// ) async {
// await sampledDepthMi.setParameterTexture(
// "depth",
// await (await manualDepthView.getRenderTarget())!
// .getColorTexture(),
// await FilamentApp.instance!.createTextureSampler());
// await withLinearDepthMaterial(testHelper, viewer, (
// linearDepthMi,
// ) async {
// await withProjectionMaterial(testHelper, viewer, (
// projectMi,
// ) async {
// await FilamentApp.instance!.setClearOptions(0, 0, 0, 1,
// clearStencil: 0, discard: false, clear: true);
// await testHelper.withCube(viewer, (cube2) async {
// var ubershader = await cube2.getMaterialInstanceAt();
// (await manualDepthView.getScene()).remove(cube2);
// await ubershader.setParameterFloat4(
// "baseColorFactor", 0.0, 1.0, 0.0, 1.0);
// await cube2.setTransform(Matrix4.compose(
// Vector3(-0.5, 0, -0.5),
// Quaternion.identity(),
// Vector3.all(1)));
// await testHelper.withCube(viewer, (cube) async {
// await cube.setTransform(Matrix4.compose(Vector3.zero(),
// Quaternion.identity(), Vector3.all(1)));
// var divisions = 1;
// var ubershader = await cube.getMaterialInstanceAt();
// await ubershader.setDepthCullingEnabled(true);
// await ubershader.setDepthWriteEnabled(true);
// await ubershader.setCullingMode(CullingMode.BACK);
// await ubershader.setParameterInt("baseColorIndex", 0);
// await ubershader.setParameterTexture(
// "baseColorMap",
// await createTextureFromImage(testHelper),
// await FilamentApp.instance!.createTextureSampler());
// // final color = await (await linearDepthView.getRenderTarget())!
// // .getColorTexture();
// // final depth = await (await manualDepthView.getRenderTarget())!
// // .getColorTexture();
// // await projectMi.setParameterTexture("color", color,
// // await FilamentApp.instance!.createTextureSampler());
// // await projectMi.setParameterTexture("depth", depth,
// // await FilamentApp.instance!.createTextureSampler());
// // await projectMi.setDepthCullingEnabled(true);
// // await projectMi.setParameterBool("useDepth", true);
// // for (int i = 0; i < divisions; i++) {
// // await camera.lookAt(
// // Vector3(
// // sin(i / divisions * pi) * dist,
// // dist,
// // cos(i / divisions * pi) * dist,
// // ),
// // );
// // await cube.setMaterialInstanceAt(manualDepthMi);
// var pixelBuffers = await testHelper
// .capture(null, "project_texture_color",
// beforeRender: (view) async {
// if (view == linearDepthView) {
// await cube.setMaterialInstanceAt(linearDepthMi);
// } else if (view == manualDepthView) {
// await cube.setMaterialInstanceAt(manualDepthMi);
// } else {
// throw Exception();
// }
// });
// // var comparison = comparePixelBuffers(
// // pixelBuffers[1], pixelBuffers[2], 512, 512);
// // savePixelBufferToBmp(comparison, 512, 512, "cmparison");
// // await cube.setMaterialInstanceAt(ubershader);
// checkRedFromRGBAPixelBuffer(
// pixelBuffers[manualDepthView]!
// .buffer
// .asFloat32List(),
// 512,
// 512);
// // }
// });
// });
// });
// });
// });
// });
// });
// });
// }, createRenderTarget: true);
// });
// });
// }
// final projectedImage = await viewer.createImage(512, 512, 4);
// final data = await projectedImage.getData();
// data.setRange(0, data.length, floatPixelBuffer);
// final projectedTexture = await FilamentApp.instance!.createTexture(
// 512,
// 512,
// textureFormat: TextureFormat.RGBA32F,
// );
// await projectedTexture.setLinearImage(
// projectedImage,
// PixelDataFormat.RGBA,
// PixelDataType.FLOAT,
// );
// await ubershader.setParameterTexture(
// "baseColorMap",
// projectedTexture,
// sampler,
// );
// await object.setMaterialInstanceAt(ubershader);
// await testHelper.capture(
// viewer,
// "retextured_${key}_$i",
// renderTarget: rt,
// );
// await resetMaterial();
// }
// await viewer.destroyAsset(object);
// }
// });
// });
// });
// });
// });
// }

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thermion_dart/test/postprocessing_tests.dart Normal file
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@Timeout(const Duration(seconds: 600))
import 'package:test/test.dart';
import 'package:thermion_dart/src/filament/src/light_options.dart';
import 'package:thermion_dart/thermion_dart.dart';
import 'helpers.dart';
void main() async {
final testHelper = TestHelper("postprocessing");
await testHelper.setup();
group("assets", () {
test('enable/disable postprocessing', () async {
await testHelper.withViewer((viewer) async {
await viewer.setBackgroundColor(1.0, 0.0, 0.0, 1.0);
await testHelper.capture(viewer.view, "empty_scene_no_postprocessing");
await viewer.setPostProcessing(true);
await testHelper.capture(viewer.view, "empty_scene_postprocessing");
}, postProcessing: false, createRenderTarget: true);
});
test('bloom', () async {
await testHelper.withViewer((viewer) async {
await FilamentApp.instance!.setClearOptions(1, 1, 1, 1, clear: false);
var asset = await viewer
.loadGltf("file://${testHelper.testDir}/assets/cube.glb");
var light = await viewer.addDirectLight(
DirectLight.point(intensity: 1000000, falloffRadius: 10));
await viewer.setLightPosition(light, 1, 2, 2);
await viewer.setBloom(false, 0.5);
await testHelper.capture(viewer.view, "postprocessing_no_bloom");
await viewer.setBloom(true, 0.5);
await testHelper.capture(viewer.view, "postprocessing_bloom_0.5");
await viewer.setBloom(true, 1.0);
await testHelper.capture(viewer.view, "postprocessing_bloom_1.0");
}, postProcessing: true, createRenderTarget: true, bg: kBlue);
});
});
}