Bliss-Shader/shaders/gbuffers_spidereyes.fsh

#version 120


varying vec4 color;
varying vec2 texcoord;

uniform sampler2D texture;

//faster and actually more precise than pow 2.2
vec3 toLinear(vec3 sRGB){
	return sRGB * (sRGB * (sRGB * 0.305306011 + 0.682171111) + 0.012522878);
}

vec4 encode (vec3 n, vec2 lightmaps){
	n.xy = n.xy / dot(abs(n), vec3(1.0));
	n.xy = n.z <= 0.0 ? (1.0 - abs(n.yx)) * sign(n.xy) : n.xy;
    vec2 encn = clamp(n.xy * 0.5 + 0.5,-1.0,1.0);
	
    return vec4(encn,vec2(lightmaps.x,lightmaps.y));
}

//encoding by jodie
float encodeVec2(vec2 a){
    const vec2 constant1 = vec2( 1., 256.) / 65535.;
    vec2 temp = floor( a * 255. );
	return temp.x*constant1.x+temp.y*constant1.y;
}
float encodeVec2(float x,float y){
    return encodeVec2(vec2(x,y));
}

//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
/* DRAWBUFFERS:28 */

void main() {

	vec4 Albedo = texture2D(texture, texcoord);

	// if (Albedo.a > 0.1) Albedo.a = 1.0;
	// else Albedo.a = 0.0;

   	// vec4 data1 = vec4(1);
	// gl_FragData[0] = vec4(encodeVec2(Albedo.x,data1.x),	encodeVec2(Albedo.y,data1.y),	encodeVec2(Albedo.z,data1.z),	encodeVec2(data1.w,Albedo.w));
    
    Albedo *= color;
    Albedo.rgb = toLinear(Albedo.rgb);

    gl_FragData[0] = Albedo;

   gl_FragData[1] = vec4(0.0,0.0,0.0,0.5);
}