Question by SolidSnake · Mar 05, 2013 at 10:39 AM · lighting shaders shaderlab cg

ShaderLab builtin lighting properties are not correct?

Hi All,

I was trying to access lighting properties inside a CG shader (vertex lighting without using surface shaders)

using the following doc:

http://docs.unity3d.com/Documentation/Components/SL-BuiltinValues.html

However, when i tried using: _ModelLightColor[0], _ObjectSpaceLightPos[0] I got undefined variable error.

Anyway after digging into UnityCG.cginc I found: unity_LightPosition[0] & unity_LightColor[0] variables which did the trick.

Are the Docs outdated? or I am missing something?

Thanks in advance

==EDIT==

Just to add that I am using Unity 3.5.7 PRO

Add comment · Show 3

whydoidoit · Mar 05, 2013 at 11:01 AM 0

I ended up using the unity_ values for a similar reason

SolidSnake · Mar 05, 2013 at 11:11 AM 0

Thanks for sharing

Gogeric · Apr 05, 2013 at 10:51 AM 0

Really thanks for sharing, for me also the _$$anonymous$$odelLightColor[0] was not working so I tried unity_LightColor[0] and no more errors, i have Unity 4.1 pro, using Dx11, so yes the doc seems outdated.

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ShaderLab builtin lighting properties are not correct?

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