precision mediump float;

uniform sampler2D Texture;
varying vec2 texCoord;
varying vec3 vWorldPos;

uniform vec3 eyePos;    // Позиция камеры
uniform vec3 targetPos; // Цель камеры

void main() 
{

	vec4 color;
	
	vec3 dirToCamera = normalize(eyePos - targetPos);
    vec3 dirToVertex = normalize(vWorldPos - targetPos);
	
	float dotProduct = dot(dirToCamera, dirToVertex);
	
	float distanceX = abs(vWorldPos.x);
	float distanceZ = abs(vWorldPos.z);
	
	//float distanceToCamera = length(vWorldPos - targetPos);
	
	if ((distanceX > 380.0 || distanceZ > 380.0) && (dotProduct > 0.0) && vWorldPos.y > 10.0)
	{
		//color.rgba = vec4(1,0,0,1);
		discard;
    }
	else
	{
		color.rgb = texture2D(Texture, texCoord).rgb;
		color.a = 1.0;
	}
	gl_FragColor = color;
}