PixelSpaceCallbackMapper

Source

index.js
import macro from 'vtk.js/Sources/macro';
import vtkViewNode from 'vtk.js/Sources/Rendering/SceneGraph/ViewNode';

import { registerOverride } from 'vtk.js/Sources/Rendering/WebGPU/ViewNodeFactory';

// ----------------------------------------------------------------------------
// vtkWebGPUPixelSpaceCallbackMapper methods
// ----------------------------------------------------------------------------

function vtkWebGPUPixelSpaceCallbackMapper(publicAPI, model) {
model.classHierarchy.push('vtkWebGPUPixelSpaceCallbackMapper');

publicAPI.opaquePass = (prepass, renderPass) => {
model.WebGPURenderer = publicAPI.getFirstAncestorOfType(
'vtkWebGPURenderer'
);
model.WebGPURenderWindow = model.WebGPURenderer.getParent();
const aspectRatio = model.WebGPURenderer.getAspectRatio();
const camera = model.WebGPURenderer
? model.WebGPURenderer.getRenderable().getActiveCamera()
: null;
const tsize = model.WebGPURenderer.getTiledSizeAndOrigin();
const texels = null;

if (model.renderable.getUseZValues()) {
// Todo
}

model.renderable.invokeCallback(
model.renderable.getInputData(),
camera,
aspectRatio,
tsize,
texels
);
};
}

// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------

const DEFAULT_VALUES = {};

// ----------------------------------------------------------------------------

export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);

// Inheritance
vtkViewNode.extend(publicAPI, model, initialValues);

// Object methods
vtkWebGPUPixelSpaceCallbackMapper(publicAPI, model);
}

// ----------------------------------------------------------------------------

export const newInstance = macro.newInstance(
extend,
'vtkWebGPUPixelSpaceCallbackMapper'
);

// ----------------------------------------------------------------------------

export default { newInstance, extend };

// Register ourself to WebGPU backend if imported
registerOverride('vtkPixelSpaceCallbackMapper', newInstance);