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texture projection work

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This commit is contained in:
Nick Fisher
2025-03-25 12:16:38 +08:00
parent aebaa8425c
commit cac063324d
2 changed files with 66 additions and 80 deletions
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75
thermion_dart/test/projection_tests.dart
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@@ -3,6 +3,7 @@ import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'package:test/test.dart';
import 'package:thermion_dart/src/utils/src/texture_projection.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';
@@ -60,49 +61,13 @@ void main() async {
final cube = await _makeCube(testHelper, viewer);
final ubershader = await cube.getMaterialInstanceAt();
final originalTexture = await createTextureFromImage(testHelper);
final sampler =
await FilamentApp.instance!.createTextureSampler();
final sampler = await FilamentApp.instance!.createTextureSampler();
await ubershader.setParameterTexture("baseColorMap", originalTexture,
sampler);
await ubershader.setParameterTexture(
"baseColorMap", originalTexture, sampler);
final depthWriteView = await testHelper.createView(testHelper.swapChain,
textureFormat: TextureFormat.R32F);
final captureView = await testHelper.createView(testHelper.swapChain);
await viewer.view.setRenderOrder(0);
await depthWriteView.setRenderOrder(1);
await captureView.setRenderOrder(2);
for (var view in [captureView, depthWriteView]) {
await view.setCamera(camera);
await (view as FFIView)
.setScene(await viewer.view.getScene() as FFIScene);
}
var depthWriteMat = await FilamentApp.instance!.createMaterial(
File(
"/Users/nickfisher/Documents/thermion/materials/linear_depth.filamat",
).readAsBytesSync(),
);
var depthWriteMi = await depthWriteMat.createInstance();
var captureMat = await FilamentApp.instance!.createMaterial(
File(
"/Users/nickfisher/Documents/thermion/materials/capture_uv.filamat",
).readAsBytesSync(),
);
var captureMi = await captureMat.createInstance();
final color =
await (await viewer.view.getRenderTarget())!.getColorTexture();
final depth =
await (await depthWriteView.getRenderTarget())!.getColorTexture();
await captureMi.setParameterBool("flipUVs", true);
await captureMi.setParameterTexture(
"color", color, await FilamentApp.instance!.createTextureSampler());
await captureMi.setParameterTexture(
"depth", depth, await FilamentApp.instance!.createTextureSampler());
await captureMi.setParameterBool("useDepth", true);
var textureProjection =
await TextureProjection.create(viewer.view, testHelper.swapChain);
await FilamentApp.instance!.setClearOptions(0, 0, 0, 1,
clearStencil: 0, discard: false, clear: true);
@@ -115,7 +80,7 @@ void main() async {
512,
textureFormat: TextureFormat.RGBA32F,
);
for (int i = 0; i < divisions; i++) {
await camera.lookAt(
Vector3(
@@ -125,23 +90,17 @@ void main() async {
),
);
var pixelBuffers = await testHelper.capture(null, "capture_uv_$i",
beforeRender: (view) async {
if (view == viewer.view) {
await ubershader.setParameterTexture("baseColorMap", originalTexture,
sampler);
await cube.setMaterialInstanceAt(ubershader);
} else if (view == depthWriteView) {
await cube.setMaterialInstanceAt(depthWriteMi);
} else if (view == captureView) {
await cube.setMaterialInstanceAt(captureMi);
}
});
await textureProjection.project(cube);
final depth = textureProjection.getDepthWritePixelBuffer();
await savePixelBufferToBmp(
depth, 512, 512, "${testHelper.outDir.path}/depth_$i.bmp");
final projected = textureProjection.getProjectedPixelBuffer();
await savePixelBufferToBmp(
depth, 512, 512, "${testHelper.outDir.path}/projected_$i.bmp");
await cube.setMaterialInstanceAt(ubershader);
final data = await projectedImage.getData();
data.setRange(0, data.length,
pixelBuffers[captureView]!.buffer.asFloat32List());
data.setRange(0, data.length, projected.buffer.asFloat32List());
await projectedTexture.setLinearImage(
projectedImage,
@@ -157,8 +116,8 @@ void main() async {
await testHelper.capture(viewer.view, "capture_uv_retextured_$i");
await ubershader.setParameterTexture("baseColorMap", originalTexture,
sampler);
await ubershader.setParameterTexture(
"baseColorMap", originalTexture, sampler);
}
}, createRenderTarget: true);
});