message: gltf_baker now has adjustable resolution.
diff: @@ -94,6 +94,7 @@ struct App {
  std::atomic<bool> requestStatePop;
  gltfio::AssetPipeline* pipeline;
  std::string messageBoxText;
  + uint32_t bakeResolution = 1024;
  };
  struct OverlayVertex {
  @@ -426,10 +427,11 @@ static void bakeAsset(App& app) {
  gltfio::AssetPipeline::AssetHandle asset = app.asset->getSourceAsset();
  // Allocate the render target for the path tracer as well as a GPU texture to display it.
  - auto viewportSize = ImGui::GetIO().DisplaySize;
  + ImVec2 viewportSize = ImGui::GetIO().DisplaySize;
  + const uint32_t res = app.bakeResolution;
  viewportSize.x -= app.viewer->getSidebarWidth();
  app.showOverlay = true;
  - app.ambientOcclusion = image::LinearImage(1024, 1024, 1);
  + app.ambientOcclusion = image::LinearImage(res, res, 1);
  createOverlayTexture(app);
  app.pipeline = new gltfio::AssetPipeline();
  @@ -443,9 +445,9 @@ static void bakeAsset(App& app) {
  #if DEBUG_PATHTRACER
  image::LinearImage outputs[] = {
  app.ambientOcclusion,
  - app.bentNormals = image::LinearImage(1024, 1024, 3),
  - app.meshNormals = image::LinearImage(1024, 1024, 3),
  - app.meshPositions = image::LinearImage(1024, 1024, 3)
  + app.bentNormals = image::LinearImage(res, res, 3),
  + app.meshNormals = image::LinearImage(res, res, 3),
  + app.meshPositions = image::LinearImage(res, res, 3)
  };
  auto onRenderDone = [](void* userData) {
  App* app = (App*) userData;
  @@ -617,6 +619,15 @@ int main(int argc, char** argv) {
  if (canPrep) {
  ImGui::Checkbox("Auto-scale before parameterization", &app.enablePrepScale);
  }
  + if (canBake) {
  + static const int kFirstOption = std::log2(512);
  + int bakeOption = std::log2(app.bakeResolution) - kFirstOption;
  + ImGui::Combo("Bake Resolution", &bakeOption,
  + "512 x 512\0"
  + "1024 x 1024\0"
  + "2048 x 2048\0");
  + app.bakeResolution = 1 << (bakeOption + kFirstOption);
  + }
  if (!app.messageBoxText.empty()) {
  ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, {10, 10} );
  @@ -650,8 +661,9 @@ int main(int argc, char** argv) {
  };
  auto animate = [&app](Engine* engine, View* view, double now) {
  + // The baker doesn't support animation, just use frame 0.
  if (app.state != EMPTY) {
  - app.viewer->applyAnimation(now);
  + app.viewer->applyAnimation(0.0);
  }
  if (!app.overlayScene && app.showOverlay) {
  app.overlayView = FilamentApp::get().getGuiView();
  