Add option for HalfFloat in vertexAnimationBaker's textureFromBakedVertexData (#16750)

For devices that support it and animations whose precision is not
affected by the precision of float16, using HalfFloat can cut down
memory usage by 50%. Currently have a warning when the engine caps don't
include HalfFloat - don't know if might make sense to return null
instead since whatever happens down the line will not be supported,
likely crazy polygon soup from the VAT shader.

Author: knervous

packages/dev/core/src/BakedVertexAnimation/vertexAnimationBaker.ts

@@ -7,7 +7,8 @@ import type { Scene } from "../scene";
 import { Constants } from "../Engines/constants";
 import { Skeleton } from "core/Bones/skeleton";
 import type { Nullable } from "core/types";
-import { ToHalfFloat } from "core/Misc/textureTools";
+import { ToHalfFloat } from "../Misc/textureTools";
+import { Logger } from "../Misc/logger";
 
 /**
  * Class to bake vertex animation textures.
@@ -140,15 +141,22 @@ export class VertexAnimationBaker {
     }
     /**
      * Builds a vertex animation texture given the vertexData in an array.
-     * @param vertexData The vertex animation data. You can generate it with bakeVertexData().
+     * @param vertexData The vertex animation data. You can generate it with bakeVertexData(). You can pass in a Float32Array to return a full precision texture, or a Uint16Array to return a half-float texture.
+     * If you pass in a Uint16Array, make sure your device supports half-float textures
      * @returns The vertex animation texture to be used with BakedVertexAnimationManager.
      */
-    public textureFromBakedVertexData(vertexData: Float32Array): RawTexture {
+    public textureFromBakedVertexData(vertexData: Float32Array | Uint16Array): RawTexture {
         if (!this._skeleton) {
             throw new Error("No skeleton provided.");
         }
         const boneCount = this._skeleton.bones.length;
 
+        if (vertexData instanceof Uint16Array) {
+            if (!this._scene.getEngine().getCaps().textureHalfFloatRender) {
+                Logger.Warn("VertexAnimationBaker: Half-float textures are not supported on this device");
+            }
+        }
+
         const texture = RawTexture.CreateRGBATexture(
             vertexData,
             (boneCount + 1) * 4,
@@ -157,7 +165,7 @@ export class VertexAnimationBaker {
             false,
             false,
             Texture.NEAREST_NEAREST,
-            Constants.TEXTURETYPE_FLOAT
+            vertexData instanceof Float32Array ? Constants.TEXTURETYPE_FLOAT : Constants.TEXTURETYPE_HALF_FLOAT
         );
         texture.name = "VAT" + this._skeleton.name;
         return texture;