2025-02-BondingArtifact/.specstory/history/2026-03-31_05-00-58Z-creating-hdr-in-blender.md

2026-03-31 05:00:58Z

User

how would I go about creating an HDR in blender?

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Agent (composer-2-fast)

Here’s a practical way to create an HDR environment map in Blender (the usual meaning of “make an HDR” in Blender).

1. Build or load your scene

Place lights, emissive materials, and geometry as you want them to appear in the environment. The world shader can also contribute (sky, gradients, etc.).

2. Use an equirectangular panorama camera

1. Add a Camera (or use the default).
2. In the Output Properties → Dimensions, set an aspect that matches a full 360° strip, e.g. 2:1 (width = 2× height), such as 4096 × 2048 or 8192 × 4096 for higher quality.
3. Select the camera → Object Data Properties → Lens:
   • Type: Panoramic
   • Panorama Type: Equirectangular
4. Position the camera where the “viewer” should stand (often world origin). For interiors, put it inside the room; scale/orientation of the scene should match how you want the HDRI to look.

3. Render with a high dynamic range format

1. Render Properties → set Render Engine (Cycles is typical for lighting-quality HDRIs).
2. Output Properties → Output:
   • File Format: OpenEXR (best for HDR; wide industry use) or Radiance HDR (.hdr) if you need that specific format.
   • For OpenEXR, use Float (Full) / Half as needed for file size vs. precision.
3. Render → Render Image (F12). You get a single equirectangular HDR frame.

4. Use or share it

• In Blender: World → Surface → Environment Texture, load the .exr or .hdr, set Color Space to match (often Linear for EXR used as lighting data).
• Elsewhere: many tools expect lat-long / equirectangular EXR or HDR for IBL.

Tips

• Samples: raise them enough that noise is acceptable; HDRI resolution amplifies any grain.
• Exposure: balance in-camera or in compositing; EXR preserves headroom.
• Seams: avoid obvious discontinuities at the left/right wrap by keeping large emissive panels away from the seam if possible, or fix in compositing.

If you meant HDR stills of a normal perspective (not a 360° map), say so—the steps are different (regular camera + EXR/OpenEXR output, no panoramic camera).

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User

I got it, it looks sweet. can you take @blends/stills/Orb_channelpoints.png and re-export the 112,56, and 28 versions? I believe I have pillow installed.

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Agent (composer-2-fast)

Locating the image and any existing naming convention for resized exports.

Agent (composer-2-fast)

Tool use: **glob_file_search** • Searched codebase "" • **0** results in **1** directory

Directory: D:\2025-02 BondingArtifact (0 files)

Tool use: **glob_file_search**

Agent (composer-2-fast)

Agent (composer-2-fast)

Tool use: **glob_file_search** • Searched codebase "" • **0** results in **1** directory

Directory: D:\2025-02 BondingArtifact (0 files)

Tool use: **glob_file_search**

Agent (composer-2-fast)

Tool use: **glob_file_search** • Searched codebase "" • **0** results in **1** directory

Directory: D:\2025-02 BondingArtifact (0 files)

Tool use: **glob_file_search**

Agent (composer-2-fast)

Agent (composer-2-fast)

Tool use: **glob_file_search** • Searched codebase "" • **0** results in **1** directory

Directory: D:\2025-02 BondingArtifact (0 files)

Tool use: **glob_file_search**

Agent (composer-2-fast)

Tool use: **read_file_v2** • Read file: C:\Users\Nathan\.cursor\projects\d-2025-02-BondingArtifact\assets\d__2025-02_BondingArtifact_blends_stills_Orb_channelpoints.png

Tool use: **read_file_v2**

Agent (composer-2-fast)

Agent (composer-2-fast)

Tool use: **glob_file_search** • Searched codebase "" • **0** results in **0** directories

No results found

Tool use: **glob_file_search**