message: Suppress 'no texture bound' warnings for conditionally-sampled textures.
diff: @@ -250,6 +250,8 @@ function addCommon(builder: ProgramBuilder, mode: FeatureMode, opts: FeatureSymb
  assert(undefined !== ovr);
  if (ovr!.isNonUniform)
  ovr!.lut!.bindSampler(uniform, TextureUnit.FeatureSymbology);
  + else
  + System.instance.lineCodeTexture!.bindSampler(uniform, TextureUnit.FeatureSymbology); // Bind *something* to suppress 'no texture assigned to texture unit x' warnings
  });
  });
  vert.addUniform("u_featureParams", VariableType.Vec2, (prog) => {
  