@:directlyUsed@:src({
@global var camera:{ var view : Mat4; var proj : Mat4; var viewProj : Mat4; var projDepth : Float; var zNear : Float; var zFar : Float};
@global var global:{ var pixelSize : Vec2; @perObject
var modelView : Mat4};
@input var input:{ var position : Vec3; var normal : Vec3; var uv : Vec2};
var output:{ var position : Vec4};
var transformedNormal:Vec3;
var transformedPosition:Vec3;
var projectedPosition:Vec4;
@param var lengthScale:Float;
@param var width:Float;
var pdir:Vec4;
function __init__() {
{
var dir = input.normal * global.modelView.mat3();
pdir = vec4(dir * mat3(camera.view), 1) * camera.proj;
pdir.xy *= 1 / sqrt(pdir.x * pdir.x + pdir.y * pdir.y);
transformedPosition += dir * input.uv.x * lengthScale;
transformedNormal = dir.normalize();
};
};
function linearize(d:Float):Float {
var n = camera.zNear;
var f = camera.zFar;
return (2 * n * f) / (f + n - (2 * d - 1) * (f - n) * camera.projDepth);
};
function vertex() {
projectedPosition.xy += (pdir.yx * vec2(1, -1)) * (input.uv.y - 0.5) * linearize(projectedPosition.z / projectedPosition.w) * global.pixelSize * width;
};
})@:build(hxsl.Macros.buildShader())@:autoBuild(hxsl.Macros.buildShader())
