Shader outline

[YouGroove]

I have founs some good articles :

http://en.wikibooks.org/wiki/GLSL_Programming/Unity/Toon_Shading#Outlines

http://sunandblackcat.com/tipFullView.php?l=eng&topicid=15

 

I wanted to modify diffuse shader to do the code below :

 

// higher priority: outline
	    if (dot(viewDirection, normalDirection)
		   < mix(_UnlitOutlineThickness, _LitOutlineThickness,
		   max(0.0, dot(normalDirection, lightDirection))))
	    {
		   fragmentColor =
			  vec3(_LightColor0) * vec3(_OutlineColor);
	    }

 

Does someone know what is viewdirection, normaldirection and lightdirection in LE3 ?

[shadmar]

That is writen for forward rendering..

 

view direction is your eye vector which would be in LE: normalize( modelvertexposition.xyz - cameraposition )

 

normaldirection should be ex_normal or computed normals with normals map.

 

lightdirection can't be fetched. or that is you can, but you need to calculate it in your app for 1 light and send it.