BondingRoom HDRI!!

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

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+<!-- Generated by SpecStory, Markdown v2.1.0 -->
+
+# 2026-03-31 05:00:58Z
+
+<!-- cursoride Session 14f1562e-b4f9-4589-b3b5-6e1e24b2c7b7 (2026-03-31 05:00:58Z) -->
+
+_**User**_
+
+how would I go about creating an HDR in blender?
+
+---
+
+_**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°

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