Hy3D Render SingleView

Hy3DRenderSingleView is the node for when you want to look at your mesh rather than paint it. You hand it a TRIMESH, dial in an azimuth, an elevation, a camera type - and it renders a single normal map or depth map from that exact angle. No six-view ring, no bake connection, no drama. It's the turntable-on-demand renderer of the pack.

The normal render is what makes this fun. It bakes the surface orientation into RGB - and because it uses the tangent-space convention with that familiar 128,128,255 (light blue) background for empty space, it looks like a proper game-engine normal map. That's not an accident: a tangent-space normal render of your mesh is exactly what you'd feed back into a 2D pipeline to re-light, upscale, or composite the object in a scene.

Inputs that matter

• render_type - normal (default) or depth. Normal gives you the blue-and-purple orientation map; depth gives grayscale distance.
• render_size (default 1024) - output resolution.
• camera_type - orth (orthographic, default) or perspective. Orthographic is what Hunyuan's pipeline assumes and is the sane default for "show me the mesh"; perspective is for looks.
• azimuth / elevation (degrees) - spin the camera around the object.
• camera_distance, ortho_scale, pan_x, pan_y - framing controls. ortho_scale (default 1.2) is your zoom-in/out when orthographic.
• bg_color - RGB comma-separated, "128, 128, 255" by default. That light blue is the normal-map empty-space color, so it's the right default; change it and the "empty" pixels change with it.

Outputs are image (IMAGE) and mask (MASK). Wire the image into a preview, an upscale model, or an img2img pass - it's a plain image node after that.

Where it sits

Unlike Hy3DRenderMultiView, this node is not on the critical texture path - Hy3DSampleMultiView won't accept its output. It's the "show me what I made" renderer, and a genuinely handy one. Render a normal map of your finished mesh as a thumbnail, spot-check geometry from underneath, or feed the render into a 2D upscaler for a high-res beauty shot.

Install

Pack-level install - Manager search "Hunyuan3DWrapper" or git clone https://github.com/kijai/ComfyUI-Hunyuan3DWrapper, then pip install -r requirements.txt. Same caveat as every render node in this pack: it's part of the texture-gen rasterizer family, so Windows users want the matching prebuilt custom_rasterizer wheel from wheels/ (the +torch260.cuda126 one for the current portable).

Common issues

• The object is cut off - ortho_scale too small for the object's bounds. Nudge it up.
• Normal map looks inverted or weird - tangent-space normal conventions are fiddly; if it looks wrong to you, render depth to confirm the geometry itself is fine, then worry about the normals.
• Black background on normal render - the mesh likely has no vertex normals or the render got an empty mask. Clean the mesh with Hy3DPostprocessMesh first.