feat: use "extent" name and some perf improvements

Sources/Rendering/Core/VolumeMapper/index.d.ts

@@ -1,16 +1,8 @@
 import vtkPiecewiseFunction from "../../../Common/DataModel/PiecewiseFunction";
-import { Bounds, Range, Vector3 } from "../../../types";
+import { Bounds, Range, Extent } from "../../../types";
 import vtkAbstractMapper3D, { IAbstractMapper3DInitialValues } from "../AbstractMapper3D";
 import { BlendMode, FilterMode } from "./Constants";
 
-/**
- * Represents a 3D region of a volume.
- */
-export interface VolumeRegion {
-  start: Vector3;
-  size: Vector3;
-}
-
 /**
  *
  */
@@ -287,23 +279,23 @@ export interface vtkVolumeMapper extends vtkAbstractMapper3D {
 	setLAOKernelRadius(LAOKernelRadius: number): void;
 
   /**
-   * Tells the mapper to only update the specified regions.
-   * 
-   * If there are zero regions, the mapper updates the entire volume texture.
-   * Otherwise, the mapper will only update the texture by the specified regions
+   * Tells the mapper to only update the specified extents.
+   *
+   * If there are zero extents, the mapper updates the entire volume texture.
+   * Otherwise, the mapper will only update the texture by the specified extents
    * during the next render call.
-   * 
+   *
    * This array is cleared after a successful render.
-   * @param regions 
+   * @param extents
    */
-  setRegionsToUpdate(regions: VolumeRegion[]): boolean;
+  setUpdatedExtents(extents: Extent[]): boolean;
 
   /**
-   * Retrieves the regions to update.
-   * 
+   * Retrieves the updated extents.
+   *
    * This array is cleared after every successful render.
    */
-  getRegionsToUpdate(): VolumeRegion[];
+  getUpdatedExtents(): Extent[];
 
 	/**
 	 *

Sources/Rendering/Core/VolumeMapper/index.js

@@ -163,7 +163,7 @@ const defaultValues = (initialValues) => ({
   localAmbientOcclusion: false,
   LAOKernelSize: 15,
   LAOKernelRadius: 7,
-  regionsToUpdate: [],
+  updatedExtents: [],
   ...initialValues,
 });
 
@@ -192,7 +192,7 @@ export function extend(publicAPI, model, initialValues = {}) {
     'localAmbientOcclusion',
     'LAOKernelSize',
     'LAOKernelRadius',
-    'regionsToUpdate',
+    'updatedExtents',
   ]);
 
   macro.setGetArray(publicAPI, model, ['ipScalarRange'], 2);

Sources/Rendering/OpenGL/Texture/index.d.ts

@@ -1,6 +1,6 @@
 import { Wrap, Filter } from "./Constants";
 import vtkOpenGLRenderWindow from '../RenderWindow';
-import { Nullable } from '../../../types';
+import { Extent, Nullable } from '../../../types';
 import { VtkDataTypes } from "../../../Common/Core/DataArray";
 import { vtkViewNode } from '../../../Rendering/SceneGraph/ViewNode';
 import { vtkObject } from "../../../interfaces" ;
@@ -230,39 +230,51 @@ export interface vtkOpenGLTexture extends vtkViewNode {
 
   /**
    * Creates a 3D texture from raw data.
+   *
+   * updatedExtents is currently incompatible with webgl1, since there's no extent scaling.
+   *
    * @param width The width of the texture.
    * @param height The height of the texture.
    * @param depth The depth of the texture.
    * @param numComps The number of components in the texture.
    * @param dataType The data type of the texture.
    * @param data The raw data for the texture.
+   * @param updatedExtents Only update the specified extents (default: [])
    * @returns {boolean} True if the texture was successfully created, false otherwise.
    */
-  create3DFromRaw(width: number, height: number, depth: number, numComps: number, dataType: VtkDataTypes, data: any): boolean;
+  create3DFromRaw(width: number, height: number, depth: number, numComps: number, dataType: VtkDataTypes, data: any, updatedExtents?: Extent[]): boolean;
 
   /**
    * Creates a 3D filterable texture from raw data, with a preference for size over accuracy if necessary.
+   *
+   * updatedExtents is currently incompatible with webgl1, since there's no extent scaling.
+   *
    * @param width The width of the texture.
    * @param height The height of the texture.
    * @param depth The depth of the texture.
    * @param numComps The number of components in the texture.
    * @param dataType The data type of the texture.
    * @param values The raw data for the texture.
    * @param preferSizeOverAccuracy Whether to prefer texture size over accuracy.
+   * @param updatedExtents Only update the specified extents (default: [])
    * @returns {boolean} True if the texture was successfully created, false otherwise.
    */
-  create3DFilterableFromRaw(width: number, height: number, depth: number, numComps: number, dataType: VtkDataTypes, values: any, preferSizeOverAccuracy: boolean): boolean;
+  create3DFilterableFromRaw(width: number, height: number, depth: number, numComps: number, dataType: VtkDataTypes, values: any, preferSizeOverAccuracy: boolean, updatedExtents?: Extent[]): boolean;
 
   /**
    * Creates a 3D filterable texture from a data array, with a preference for size over accuracy if necessary.
+   *
+   * updatedExtents is currently incompatible with webgl1, since there's no extent scaling.
+   *
    * @param width The width of the texture.
    * @param height The height of the texture.
    * @param depth The depth of the texture.
    * @param dataArray The data array to use for the texture.
    * @param preferSizeOverAccuracy Whether to prefer texture size over accuracy.
+   * @param updatedExtents Only update the specified extents (default: [])
    * @returns {boolean} True if the texture was successfully created, false otherwise.
    */
-  create3DFilterableFromDataArray(width: number, height: number, depth: number, dataArray: any, preferSizeOverAccuracy: boolean): boolean;
+  create3DFilterableFromDataArray(width: number, height: number, depth: number, dataArray: any, preferSizeOverAccuracy: boolean, updatedExtents?: Extent[]): boolean;
 
   /**
    * Sets the OpenGL render window in which the texture will be used.