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# SD3Transformer2D

This class is useful when *only* loading weights into a [`SD3Transformer2DModel`]. If you need to load weights into the text encoder or a text encoder and SD3Transformer2DModel, check [`SD3LoraLoaderMixin`](lora#diffusers.loaders.SD3LoraLoaderMixin) class instead.

The [`SD3Transformer2DLoadersMixin`] class currently only loads IP-Adapter weights, but will be used in the future to save weights and load LoRAs.

> [!TIP]
> To learn more about how to load LoRA weights, see the [LoRA](../../using-diffusers/loading_adapters#lora) loading guide.

## SD3Transformer2DLoadersMixin

[[autodoc]] loaders.transformer_sd3.SD3Transformer2DLoadersMixin
    - all
    - _load_ip_adapter_weights