Unity 5 Linear space

Unity Engine
1

Unity lighting has been ok(I was very happy my several Unity 4 projects. They were linear) until I switched to Unity 5. Here is the issue I am having. I am not sure this is only me or others having this. I would appreciate if anyone gives me some inputs on this. It seems the new standard material(PBR) does something on the gamma, linear curve or Unity 5 lighting is quite different than the predecessor.

See the image below I tested. Linear is burning in Unity 5 rather than smoothly spreading and the dark area is still dark as gamma.

2314589--156000--Unity5 colorspace.jpg
2314589--156000--Unity5 colorspace.jpg1000×801 72.1 KB

For the Unity 5 setting,
I removed skybox. Solid black is ambient color, there is no second light source to the scene.
Only one spotlight with intensity value of 1.5.(intensionally increased abit to see the difference)

Y

2314589--156001--106_GUID-DB0C2C61-53CE-47D9-B7F6-362C6AAC2050.png
2314589--156001--106_GUID-DB0C2C61-53CE-47D9-B7F6-362C6AAC2050.png960×227 41.6 KB

2

HDR on camera + Tone mapping?

3

It’s the screen shot of the setting. I checked the both HDR on camera on /off but nothing makes any difference. There is no tone mapping. Forgot to mention. It’s Forward rendering.

2314645--156004--lightSetting.png
2314645--156004--lightSetting.png683×708 134 KB

4

That’s pretty much what you should get from a small spotlight. There is nothing in its surrounding to reflect back bounced light.
Think about it. You cannot light up a large, open place with a candle.
I’m sure that the first two image had ambient lighting.
PBR rendering is about being physically correct. :slight_smile:

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