@:directlyUsed@:src({
@param var color:Vec3;
@param var direction:Vec3;
@const var enableSpecular:Bool;
@global var camera:{ var position : Vec3};
var lightColor:Vec3;
var lightPixelColor:Vec3;
var transformedNormal:Vec3;
var transformedPosition:Vec3;
var specPower:Float;
var specColor:Vec3;
function calcLighting():Vec3 {
var diff = transformedNormal.dot(-direction).max(0.);
if (!enableSpecular) return color * diff;
var r = reflect(direction, transformedNormal).normalize();
var specValue = r.dot((camera.position - transformedPosition).normalize()).max(0.);
return color * (diff + specColor * pow(specValue, specPower));
};
function vertex() {
lightColor.rgb += calcLighting();
};
function fragment() {
lightPixelColor.rgb += calcLighting();
};
})@:build(hxsl.Macros.buildShader())@:autoBuild(hxsl.Macros.buildShader())
