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Example Stencil

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Stencil example

import h3d.scene.*;

class Stencil extends hxd.App {

  var time : Float = 0.;
  var root : Object;

  override function init() {
    root = new Object(s3d);

    // creates a new unit cube
    var prim = new h3d.prim.Cube();
    prim.translate( -0.5, -0.5, 0.0);
    prim.unindex();
    prim.addNormals();
    prim.addUVs();
    var tex = hxd.Res.hxlogo.toTexture();

    {  // create the top cube
      var obj = new Mesh(prim, h3d.mat.Material.create(tex), root);
      obj.material.shadows = false;
    }

    {  // create the cube reflection
      var obj = new Mesh(prim, h3d.mat.Material.create(tex), root);
      obj.scaleZ = -1;
      obj.material.color.setColor(0x55C8FF);
      obj.material.shadows = false;

      var p = obj.material.mainPass;
      p.setPassName("alpha");
      p.culling = Front;
      var s = new h3d.mat.Stencil();
      s.setFunc(LessEqual, 1, 0xFF, 0);
      p.stencil = s;
    }

    {  // create reflection plane
      var prim = new h3d.prim.Cube(2, 2, 0.0001);
      prim.addNormals();
      prim.translate( -1, -1, 0);

      var obj = new Mesh(prim, root);
      obj.material.color.setColor(0x0080C0);
      obj.material.shadows = false;

      var p = obj.material.mainPass;
      var s = new h3d.mat.Stencil();
      p.depthWrite = false;

      s.setFunc(Always, 1);
      s.setOp(Keep, Keep, Replace);
      p.stencil = s;
    }

    // adds a directional light to the scene
    var light = new h3d.scene.DirLight(new h3d.Vector(-0.5, -0.5, -0.5), s3d);
    light.enableSpecular = true;
    s3d.lightSystem.ambientLight.set(0.3, 0.3, 0.3);

    s3d.camera.pos.set(5, 5, 5);
  }

  override function update( dt : Float ) {
    time += 0.6 * dt;
    root.setRotationAxis(0, 0, 1.0, time);
  }

  static function main() {
    hxd.Res.initEmbed();
    new Stencil();
  }

}

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