#version 410

uniform sampler2D texture1;

uniform float eyePos;

in vec3 colV;
in vec3 modelPosV;
in vec3 worldPosV;
in vec3 viewPosV;
in vec3 norV;
in vec2 uvV;
in vec4 videoMiscV;
in vec4 cameraRectV;

out vec4 fragColor;

vec3 mf(vec3 x)
{
    return x - floor(x);
}

float mapRange(float x, float minIn, float maxIn, float minOut, float maxOut)
{
    x -= minIn;
    x = x * (maxOut - minOut) / (maxIn - minIn);
    x += minOut;
    x = clamp(x, minOut, maxOut);
    return x;
}

void main (void)
{
    vec3 nNor = normalize(norV);
    vec3 colVL = colV;
    
    vec4 cameraRect = cameraRectV;
    if(cameraRect[2] == 0.0)
        cameraRect = vec4(0,0,1,1);
    
    vec2 texUv;
    texUv.x = mapRange(uvV.x, 0,1,cameraRect[0], cameraRect[2]);
    texUv.y = mapRange(uvV.y, 0,1,cameraRect[1], cameraRect[3]);
    vec3 texturePixel = texture(texture1, texUv).rgb;

    fragColor.rgb = texturePixel;
    fragColor.a = 1.0;
    //return;

//    float b = (texturePixel.r + texturePixel.g + texturePixel.b) / 3.0;
//    b = b * b * 3.0;
    
    const float k = 8;
    texturePixel *= ((k - 1.0) / k) + cos((uvV.y + uvV.x / videoMiscV.x) * 10 * videoMiscV.y) / k;
    
//    b = clamp(b, 0.0, 1.7);
//    texturePixel = vec3(b, b, b);
    colVL *= texturePixel;

    fragColor.rgb = colVL; return;

    
    vec2 uv = uvV;
    if(uv.x > 0.5)
        uv.x = 1.0 - uv.x;
    if(uv.y > 0.5)
        uv.y = 1.0 - uv.y;
    
    float e = min(uv.x, uv.y);
    float edgeLimit = 0.1;
    e = mapRange(e, 0.0, edgeLimit, 0.9, 1.0);
    
    vec3 shadowey3 = worldPosV;
    shadowey3 = modelPosV;
    float r = cos(shadowey3.x) + cos(shadowey3.y) + cos(shadowey3.z);
    r = mapRange(r, -3, 3, 0.8, 1.0);
    
    fragColor = vec4(colVL,1);
    fragColor.rgb *= e * r;;
    
}