BD Draw Ellipse

BD Draw Ellipse is the rounder sibling of BD Draw Rect - same design, ellipse instead of rectangle. It draws a flat-color ellipse or circle (with independent horizontal and vertical radii, so you can stretch it into an oval) that you can composite onto an image, export as a feathered mask, or inject into a packed RGBA channel. And like its sibling, the shape source isn't just geometry: wire in any ComfyUI mask and it uses that instead.

Where it actually shines in this pack's world: building iris/socket masks for face pipelines, stamping circular regions for viseme or UV-prep textures, and extracting a useful mask out of an already-packed channel so you can reuse it elsewhere. It's a small utility - don't overthink it.

Inputs and outputs that matter

Shape priority: wired mask wins → else mask_from_packed (extract R/G/B/A from a packed_image) → else geometry. The geometry dials are x_center / y_center (0–1 normalized) and radius_x / radius_y (fractions of image width/height; set both equal for a circle on a square canvas). feather works like its rect sibling: positive = outward (interior stays fully opaque), negative = inward, 0 = hard edge. fill_r/g/b + opacity control the color composite.

Outputs: image (fill blended over the base image, or a blank canvas_width × canvas_height canvas), mask (the feathered shape), and packed_out - packed_image with the final mask written into pack_channel.

Installing

ComfyUI Manager → search "BrainDead" → install, or:

cd ComfyUI/custom_nodes
git clone https://github.com/BizaNator/ComfyUI-BrainDead
cd ComfyUI-BrainDead
pip install -r requirements.txt

Restart after installing. No model downloads, no extra dependencies.

Where people get burned

Same two traps as the rect node: a wired mask silently overrides your geometry, and feather expands outward by default rather than softening in place. And one ellipse-specific gotcha - radius_x and radius_y are fractions of different axes (width vs. height), so on a non-square image "equal" radii do not make a circle. Multiply by the aspect ratio if you need a true circle on a wide or tall canvas.