jMonkeyEngine.org

I have added a a second ramp texture to a copy of lightblow(has rim lighting) and made some other adjustment that produce a workable toon effect the “problem” is that subtle charges to the calculations in that second ramp produces different but interesting results, thus far I have 8 of them all produced by using different combinations of *,+,= and other subtle tweaks to two lines of code. I kinda trying to figure out the least cumbersome way to having the different variants of the effect available without having to physically change the code every time or something crazy Like 8 “ifdef”s for one texture, I can post the code later when I get home but it is not that different from the color ramp already in these lighting shaders apart from a custom float operating on light x and y

let me see how I can explain this
I have added a second ramp to the shader
see below

  vec2 light = computeLighting(vPosition, normal, vViewDir.xyz, lightDir.xyz) * spotFallOff;
	   vec3 normalizedLight_ViewDirection = normalize(vViewDir.xyz+lightDir.xyz);
	   float NDotL2 = max(0.0, dot(normal, normalizedLight_ViewDirection));

	   #ifdef COLORRAMP2
           light.x *= texture2D(m_ColorRamp2, vec2(light.x+NDotL2, 0.0)).r;
           light.y *= texture2D(m_ColorRamp2, vec2(light.y+NDotL2, 0.0)).r;
       #endif	

ramp2 can also be calculated as

different variants to play with
	defaultpreferred
	//looks nice without *
	light.x *= texture2D(m_ColorRamp2, vec2(light.x+NDotL2, 0.0)).r;
        light.y *= texture2D(m_ColorRamp2, vec2(light.y+NDotL2, 0.0)).r;

	other variants
	//looks nice with *= and +=
	light.x = texture2D(m_ColorRamp2, vec2(light.x*+NDotL2, 0.0)).r;
        light.y = texture2D(m_ColorRamp2, vec2(light.y*+NDotL2, 0.0)).r;

        light.x = texture2D(m_ColorRamp2, vec2(light.x*NDotL2, 0.0)).r;
        light.y = texture2D(m_ColorRamp2, vec2(light.y*NDotL2, 0.0)).r; 

these produce different looks example

http://i.imgur.com/9keHx.jpg
http://i.imgur.com/0kwJ6.jpg
http://i.imgur.com/lyGqQ.jpg
http://i.imgur.com/I2wxo.jpg

some are negligibly similar so I wont probably use all but I am trying to figure out the best way to use the different looks available without having to alter the shader every time which would make having different “looks” on individual models difficult

hope I’m more clear now