TSL: UniformsNode support `int/uint` (#28666)

* allow specify bufferType to uniforms

* update bufferType in setup()

* cleanup

* cleanup

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Co-authored-by: sunag <[email protected]>

examples/jsm/nodes/accessors/UniformsNode.js

@@ -120,6 +120,7 @@ class UniformsNode extends BufferNode {
 
 		this.value = new Float32Array( length * 4 );
 		this.bufferCount = length;
+		this.bufferType = builder.changeComponentType( 'vec4', builder.getComponentType( this._elementType ) );
 
 		return super.setup( builder );