Postprocessing

Post-processing

This is renderer plugin which is used to add additional rendering effects.

How to use

To use Post-processing you should do the following:

• Plugin initialization in the AnimatedScene instance:

  /* skipped */
  @Override
  protected void onStart() {
      /* skipped */
      Postprocessing composer = new Postprocessing( getRenderer(), getScene() );
  }

• Setup RenderPass, which is needed to render current scene in the post-processor :

  RenderPass renderModel = new RenderPass( getScene(), camera );
  composer.addPass( renderModel );

• Disable auto-cleaning in WebGL renderer:

  getRenderer().setAutoClear(false);

• Add interesting post-processor pass/es:

  BloomPass effectBloom = new BloomPass( 1.3 );
  ShaderPass effectCopy = new ShaderPass( new CopyShader() );
  effectCopy.setRenderToScreen(true);
  
  composer.addPass( effectBloom );
  composer.addPass( effectCopy );

Available passes

Bloom

Used to reproduce an imaging artifact of real-world cameras. The effect produces fringes (or feathers) of light around very bright objects in an image, obscuring fine details. Basically, if an object has a light behind it, the light will look more realistic and will somewhat overlap the front of the object from the 3rd person perspective.

BloomPass effect = new BloomPass( 1.3 );
composer.addPass( effect );

Film

This pass produces an analogue noise overlay similar to a film grain / TV static

FilmPass effect = new FilmPass( 
    0.35, // Sets intensity of noise
    0.95, // Sets intensity of scanlines
    2048, // Sets number of the scanlines
    false // Enable / disable gray-scale
);
composer.addPass( effect );

Shader pass