Example Shaders

[Goombert]

This topic is a collection of various shaders that can be used in your game. You are free to use them and can also post your own in this topic.

Cartoon Shader

Language: GLSL

Vertex Shader

Code: (glsl) [Select]

varying vec3 normal;

void main()
{
normal = gl_NormalMatrix * gl_Normal;
gl_Position = ftransform();
}

Fragment Shader

Code: (glsl) [Select]

varying vec3 normal;

void main()
{
float intensity;
vec4 color;
vec3 n = normalize(normal);
intensity = dot(vec3(gl_LightSource[0].position),n);

if (intensity > 0.95)
color = vec4(1.0,0.5,0.5,1.0);
else if (intensity > 0.5)
color = vec4(0.6,0.3,0.3,1.0);
else if (intensity > 0.25)
color = vec4(0.4,0.2,0.2,1.0);
else
color = vec4(0.2,0.1,0.1,1.0);
gl_FragColor = color;
}

Perpixel

Language: GLSL

Vertex Shader

Code: (glsl) [Select]

void main()
{
vec3 normal, lightDir;
vec4 diffuse, ambient, globalAmbient;
float NdotL;

normal = normalize(gl_NormalMatrix * gl_Normal);
lightDir = normalize(vec3(gl_LightSource[0].position));
NdotL = max(dot(normal, lightDir), 0.0);
diffuse = gl_FrontMaterial.diffuse * gl_LightSource[0].diffuse;

/* Compute the ambient and globalAmbient terms */
ambient = gl_FrontMaterial.ambient * gl_LightSource[0].ambient;
globalAmbient = gl_LightModel.ambient * gl_FrontMaterial.ambient;

gl_FrontColor =  NdotL * diffuse + globalAmbient + ambient;

gl_Position = ftransform();
}

Fragment Shader

Code: (glsl) [Select]

void main()
{
gl_FragColor = gl_Color;
}


[time-killer-games]

What does the per pixel shader do? I won't have access to my PC for testing for a while so I'm asking this for my convenience. :-)

[Goombert]

The per pixel one is just a basic regular per pixel black and white shader, just meant to be the most basic.