fn add_scaling_instances(
task: &ScalingTask,
instances: &mut FastHashMap<TextureSource, Vec<ScalingInstance>>,
target_task: &RenderTask,
source_task: Option<&RenderTask>,
)fn add_scaling_instances(
task: &ScalingTask,
instances: &mut FastHashMap<TextureSource, Vec<ScalingInstance>>,
target_task: &RenderTask,
source_task: Option<&RenderTask>,
)