BloomPass constructor

BloomPass(num? strength, num? kernelSize, dynamic sigma, dynamic resolution,)

Implementation

BloomPass(num? strength, num? kernelSize, sigma, resolution) : super() {
  strength = (strength != null) ? strength : 1;
  kernelSize = (kernelSize != null) ? kernelSize : 25;
  sigma = (sigma != null) ? sigma : 4.0;
  resolution = (resolution != null) ? resolution : 256;

  // render targets

  var pars = {
    "minFilter": LinearFilter,
    "magFilter": LinearFilter,
    "format": RGBAFormat
  };

  this.renderTargetX = new WebGLRenderTarget(
      resolution, resolution, WebGLRenderTargetOptions(pars));
  this.renderTargetX.texture.name = 'BloomPass.x';
  this.renderTargetY = new WebGLRenderTarget(
      resolution, resolution, WebGLRenderTargetOptions(pars));
  this.renderTargetY.texture.name = 'BloomPass.y';

  // copy material

  if (CopyShader == null) print('THREE.BloomPass relies on CopyShader');

  var copyShader = CopyShader;

  this.uniforms = UniformsUtils.clone(copyShader["uniforms"]);

  this.uniforms['opacity']["value"] = strength;

  this.materialCopy = new ShaderMaterial({
    "uniforms": this.uniforms,
    "vertexShader": copyShader["vertexShader"],
    "fragmentShader": copyShader["fragmentShader"],
    "blending": AdditiveBlending,
    "transparent": true
  });

  // convolution material

  if (ConvolutionShader == null)
    print('THREE.BloomPass relies on ConvolutionShader');

  var convolutionShader = ConvolutionShader;

  this.convolutionUniforms =
      UniformsUtils.clone(convolutionShader["uniforms"]);

  this.convolutionUniforms['uImageIncrement']["value"] = BloomPass.blurX;
  this.convolutionUniforms['cKernel']["value"] =
      ConvolutionShader_buildKernel(sigma);

  this.materialConvolution = new ShaderMaterial({
    "uniforms": this.convolutionUniforms,
    "vertexShader": convolutionShader["vertexShader"],
    "fragmentShader": convolutionShader["fragmentShader"],
    "defines": {
      'KERNEL_SIZE_FLOAT': toFixed(kernelSize, 1),
      'KERNEL_SIZE_INT': toFixed(kernelSize, 0)
    }
  });

  this.needsSwap = false;

  this.fsQuad = new FullScreenQuad(null);
}