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[Tutorial] IES Light on Unity

2 Comments

Without IES Light

Without IES Light

IES Light on Unity

IES Light on Unity

Back then, I thought IES light was useless, but when I’m making an interior scene for my Animation I notice a weirdness on ceiling lights. It was circle!!! There’s no circle shaped ceiling lights (except lightbulb)!

You’ll gonna need

    • IESviewer 2.9
    • Prtscr (Optional, if you don’t want to use MSPaint)
    • And IES / LDT light of course!

And this is how

  1. iesUnity2
  2. Go to IES Viewer and right click on your IES or LDR light and then click Render, or simply just press CTRL+R. Sometimes, the Render window just wont show, just delete .ini file and reopen IESViewer.
  3. iesUnity3
  4. Adjust brightness, Zoom, and Distance until you pleased with the result then press Prt Scn / Print Screen on your keyboard. If you don’t have PrtScr, then you’ll need to open MSPaint (Press Winkey + R and type MSPaint). If you have PrtScr, hold CTRL and left click the render window and it’ll automatically crop it.
  5. iesUnity4
  6. Paste (CTRL+V) on MSPaint and then crop the pasted clipboard like this. Save it as JPG or PNG.
  7. IESsssThis is my IES Light
  8. IESUnity5Now go to Unity and import your IES light. Set texture type as Cookie, Light type as Point, Mapping : Mirrored Ball, Glossy Reflection, Fixup Edge Seams, Alpha from Grayscale (IMPORTANT!), and filter mode to Trilinear.
  9. IESUnity6Go to Game Object > Light > Point Light, and assign your IES file to Cookie texture.
  10. IESUnity7
  11. Now look! IES Light on Unity! Although it’s not important, but it’ll make scene looks more realistic than a nonsense circle light.
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Author: IMGVERTEX

Started making games since 13 year old. 3D CGI Weeaboo | VFX Otaku | Anime Researcher | Indie Game Dev | VR Chuunibyou

2 thoughts on “[Tutorial] IES Light on Unity

  1. Thanks for sharing this! Is this a sorta fake way of doing IES? as opposed to Unreal which i assume does IES more realistically? Or are they both basically using cookies?

    • Actually, scratch that, looked it up myself, Unreal uses ascii files as opposed to cookie textures. So i guess its more legit.

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