varying vec3 nor;

uniform sampler2D tex;
uniform sampler2D lighttex;
uniform float far;
uniform int hastex;
uniform int haslightmap;
uniform float objectid;

const float near = 1.0;

vec4 encdepth(float v) {
	vec4 enc = vec4(1.0, 255.0, 65025.0, 16581375.0) * v;
	enc = fract(enc);
	enc -= enc.yzww * vec4(1.0/255.0, 1.0/255.0, 1.0/255.0, 0.0);
	return enc;
}

void main() {

	float linear_z = (2.0 * near) / (far + near - gl_FragCoord.z * (far - near));

	// Tune for better inside range without losing outdoors
	linear_z *= 2.0;

	vec4 light = vec4(1.0);

	if (haslightmap != 0) {
		light = texture2D(lighttex, gl_TexCoord[1].xy);
	}

	if (hastex != 0)
		gl_FragData[0] = texture2D(tex, gl_TexCoord[0].xy) * light;
	else
		gl_FragData[0] = gl_Color;

	gl_FragData[1] = vec4(nor, linear_z);
	gl_FragData[2] = vec4(encdepth(gl_FragCoord.z).xyz, objectid);
}