Some models work with transparency. They return an image or a video with an alpha channel, a separate mask, or they use the mask you give them. iNodes keeps the alpha all the way into your software.
What you get back
Cutout
The image comes back as a PNG with its alpha: the subject, without the background. When the model also returns the matte on its own, in grayscale, it arrives as a second node next to the result, named …_mask.
Source, cutout, separate mask. Bria Extract Object, prompt "hammer".
Video cutout
The shot comes back as ProRes 4444, alpha included. When a model returns a VP9 WebM with alpha, the iNodes app converts it to ProRes 4444: your software reads VP9 without its alpha.
Frame of the source shot, cutout, alpha. VEED Video Background Removal (Green Screen), no prompt, delivered as ProRes 4444.
Segmentation
Name an object in the prompt ("car", "person") and the model returns its mask.
Source, mask, cutout. SAM 3.1 Image (Segment), prompt "dinosaur", Apply Mask off.
Video segmentation
The same on a shot: the mask follows the object from frame to frame, as with SAM 3.1 Video. Turn Apply Mask off to get the mask alone, in black and white.
Generation with alpha
The model creates the subject straight on a transparent background, or splits an image into layers.
Generated image, alpha. Ideogram V3 Transparent, prompt "a space shuttle", Balanced.
Giving a mask
Inpainting and erase models, and some outpainting ones, have a Mask or Mask Video input next to Source. Plug your mask into it: white is the area the model redoes, black is what it keeps. Some models need the mask at the size of the source, such as FLUX.1 [pro] Fill, the Ideogram Edit models or Object Removal Mask: crop or scale it the way you want, otherwise iNodes says so on the node before sending. In Fusion, use the node's Mask input, not its Effect Mask, which belongs to Fusion and never reaches the model.
Source, mask drawn in the alpha, result. Object Removal Mask, Low Quality, no prompt.
Example: cutting out a shot
- Add the Bria VRMBG 3.0 (Video BG Removal) node and plug your shot into Source.
- Keep Background Color on Transparent and the codec on mov_proresks: these are the defaults.
- Click Generate. The cutout arrives next to the node, as ProRes 4444 with its alpha.
The models
- Image: Bria RMBG 2.0, Bria Guided Remove Background, Bria Extract Object (with its mask), Ideogram (Remove Background), Pixelcut Background Removal, Smoretalk Ai Rembg Enhance, Topaz Upscale Image Transparent.
- Video: Bria VRMBG 3.0 (Video BG Removal), Bria Green Screen Despill, VEED Video Background Removal, VEED Video Background Removal (Fast), VEED Video Background Removal (Green Screen), Pixelcut Video Background Removal.
- Image: Sam 3 Image, SAM 3.1 Image (Segment), EVF-SAM2 Segmentation, Moondream3 Preview Segment.
- Video: Sam 3 Video, SAM 3.1 Video (Segment).
- Image: FLUX.1 [pro] Fill, FLUX.1 [pro] Fill Fine-tuned, FLUX.1 [dev] Fill with LoRAs, FLUX.1 [dev] Inpainting with LoRAs, FLUX.1 [dev] Inpainting (Controlnets, Loras), FLUX.1 Krea [dev] Inpainting with LoRAs, Flux Kontext Lora Inpaint, Rundiffusion Juggernaut Flux Lora Inpainting, Qwen Image Edit Inpaint, Z Image Turbo Inpaint, Z Image Turbo Inpaint Lora, Bria GenFill, Bria GenFill V2, Bria Fibo Edit 1.5 (Edit), Ideogram V3 Edit.
- Erase: Bria Eraser, Object Removal Mask, FLUX Pro (Erase).
- Video: LTX-2.3 Quality Inpaint, LTX-2.3 Quality Inpaint Lora, Void Video Inpainting, Bria Video Eraser (Mask), Wan VACE 14B Inpainting, Wan 2.2 VACE Fun A14B Inpainting.
- Image: FLUX 2 Pro (Outpaint), Bria Expand Image, Bria FIBO Edit 1.5 Expand, Image Outpaint.
- Video: LTX-2.3 Quality Outpaint, LTX-2.3 Quality Outpaint Lora, Wan VACE 14B Outpainting, Wan 2.2 VACE Fun A14B Outpainting.
- Transparent background: Ideogram V3 Transparent.
- Layers: Qwen Image Layered, Qwen Image Layered Lora, Seedream 5.0 Flash Layerize, Seedream 5.0 Pro (Layerize).
- New background: Bria Background Replace, Bria Replace Background, Ideogram V3 Replace Background, Image Editing Background Change.
Find them by name in the app's Models tab.