All files / Sources/Rendering/Core/Property index.js

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import macro from 'vtk.js/Sources/macros';
import Constants from 'vtk.js/Sources/Rendering/Core/Property/Constants';
 
const { Representation, Interpolation } = Constants;
 
function notImplemented(method) {
  return () => macro.vtkErrorMacro(`vtkProperty::${method} - NOT IMPLEMENTED`);
}
 
// ----------------------------------------------------------------------------
// vtkProperty methods
// ----------------------------------------------------------------------------
 
function vtkProperty(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkProperty');
 
  publicAPI.setColor = (r, g, b) => {
    if (Array.isArray(r)) {
      if (
        model.color[0] !== r[0] ||
        model.color[1] !== r[1] ||
        model.color[2] !== r[2]
      ) {
        model.color[0] = r[0];
        model.color[1] = r[1];
        model.color[2] = r[2];
        publicAPI.modified();
      }
    } else if (
      model.color[0] !== r ||
      model.color[1] !== g ||
      model.color[2] !== b
    ) {
      model.color[0] = r;
      model.color[1] = g;
      model.color[2] = b;
      publicAPI.modified();
    }
 
    publicAPI.setDiffuseColor(model.color);
    publicAPI.setAmbientColor(model.color);
    publicAPI.setSpecularColor(model.color);
  };
 
  publicAPI.computeCompositeColor = notImplemented('ComputeCompositeColor');
  publicAPI.getColor = () => {
    // Inline computeCompositeColor
    let norm = 0.0;
    if (model.ambient + model.diffuse + model.specular > 0) {
      norm = 1.0 / (model.ambient + model.diffuse + model.specular);
    }
 
    for (let i = 0; i < 3; i++) {
      model.color[i] =
        norm *
        (model.ambient * model.ambientColor[i] +
          model.diffuse * model.diffuseColor[i] +
          model.specular * model.specularColor[i]);
    }
 
    return [].concat(model.color);
  };
 
  publicAPI.setSpecularPower = (specularPower) => {
    const roughness = 1 / Math.max(1.0, specularPower);
    if (
      model.roughness !== roughness ||
      model.specularPower !== specularPower
    ) {
      model.specularPower = specularPower; // Specular power still needs to be set as long as webgl is using it (otherwise testShaderReplacementsClear fails)
      model.roughness = roughness;
      publicAPI.modified();
    }
  };
 
  publicAPI.addShaderVariable = notImplemented('AddShaderVariable');
 
  publicAPI.setInterpolationToFlat = () =>
    publicAPI.setInterpolation(Interpolation.FLAT);
  publicAPI.setInterpolationToGouraud = () =>
    publicAPI.setInterpolation(Interpolation.GOURAUD);
  publicAPI.setInterpolationToPhong = () =>
    publicAPI.setInterpolation(Interpolation.PHONG);
  publicAPI.getInterpolationAsString = () =>
    macro.enumToString(Interpolation, model.interpolation);
 
  publicAPI.setRepresentationToWireframe = () =>
    publicAPI.setRepresentation(Representation.WIREFRAME);
  publicAPI.setRepresentationToSurface = () =>
    publicAPI.setRepresentation(Representation.SURFACE);
  publicAPI.setRepresentationToPoints = () =>
    publicAPI.setRepresentation(Representation.POINTS);
  publicAPI.getRepresentationAsString = () =>
    macro.enumToString(Representation, model.representation);
}
 
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
 
const DEFAULT_VALUES = {
  color: [1, 1, 1],
  ambientColor: [1, 1, 1],
  diffuseColor: [1, 1, 1],
  specularColor: [1, 1, 1],
  edgeColor: [0, 0, 0],
 
  ambient: 0,
  diffuse: 1,
  metallic: 0,
  roughness: 0.6,
  normalStrength: 1,
  emission: 1,
  baseIOR: 1.45,
  specular: 0,
  specularPower: 1,
  opacity: 1,
  interpolation: Interpolation.GOURAUD,
  representation: Representation.SURFACE,
  edgeVisibility: false,
  backfaceCulling: false,
  frontfaceCulling: false,
  pointSize: 1,
  lineWidth: 1,
  lighting: true,
 
  shading: false,
  materialName: null,
};
 
// ----------------------------------------------------------------------------
 
export function extend(publicAPI, model, initialValues = {}) {
  Object.assign(model, DEFAULT_VALUES, initialValues);
 
  // Build VTK API
  macro.obj(publicAPI, model);
 
  macro.setGet(publicAPI, model, [
    'lighting',
    'interpolation',
    'ambient',
    'diffuse',
    'metallic',
    'roughness',
    'normalStrength',
    'emission',
    'baseIOR',
    'specular',
    'specularPower',
    'opacity',
    'edgeVisibility',
    'lineWidth',
    'pointSize',
    'backfaceCulling',
    'frontfaceCulling',
    'representation',
    'diffuseTexture',
    'metallicTexture',
    'roughnessTexture',
    'normalTexture',
    'ambientOcclusionTexture',
    'emissionTexture',
  ]);
  macro.setGetArray(
    publicAPI,
    model,
    ['ambientColor', 'specularColor', 'diffuseColor', 'edgeColor'],
    3
  );
 
  // Object methods
  vtkProperty(publicAPI, model);
}
 
// ----------------------------------------------------------------------------
 
export const newInstance = macro.newInstance(extend, 'vtkProperty');
 
// ----------------------------------------------------------------------------
 
export default { newInstance, extend, ...Constants };