source: trunk/tutorial/08_fbo.lolfx @ 1735 Tweet

-- GLSL.Vert --

#version 120

attribute vec2 in_Position;

varying vec2 pass_Position;

void main()
{
    pass_Position = in_Position;
    gl_Position = vec4(in_Position, 0.0, 1.0);
}

-- GLSL.Frag --

#version 120

#if defined GL_ES
precision highp float;
#endif

uniform sampler2D in_Texture;
uniform float in_Flag;
uniform vec3 in_Point;
uniform vec3 in_Color;

varying vec2 pass_Position;

void main(void)
{
    if (in_Flag == 0.0)
    {
        float tc = 0.0, ta = 0.0;
        {
            float s = 4.0 + 3.0 * in_Point.z;
            vec2 p = pass_Position - in_Point.xy * 0.8;
            float t = clamp(1.2 - dot(s * p, s * p), 0.0, 1.0);
            float u = t * t;
            tc += 3.0 * t * t - 2.0 * t * t * t;
            ta += 3.0 * u * u - 2.0 * u * u * u;
        }

        gl_FragColor = vec4(tc * in_Color, ta + 0.1);
    }
    else
    {
        vec2 texcoords = pass_Position * 0.5 + vec2(0.5, 0.5);
        gl_FragColor = vec4(texture2D(in_Texture, texcoords).xyz, 1.0);
    }
}

-- HLSL.Vert --

void main(float2 in_Position : POSITION,
          out float4 out_Position : POSITION)
{
    out_Position = float4(in_Position, 0.0, 1.0);
}

-- HLSL.Frag --

void main(out float4 out_FragColor : COLOR)
{
    out_FragColor = float4(0.7, 0.2, 0.5, 1.0);
}