Merge pull request #14045 from Mugen87/dev4

WebGLUniforms: Added full caching for PureArrayUniform

src/renderers/webgl/WebGLUniforms.js

@@ -496,19 +496,40 @@ function setValue1iv( gl, v ) {
 
 function setValueV2a( gl, v ) {
 
-	gl.uniform2fv( this.addr, flatten( v, this.size, 2 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 2 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniform2fv( this.addr, data );
+
+	this.updateCache( data );
 
 }
 
 function setValueV3a( gl, v ) {
 
-	gl.uniform3fv( this.addr, flatten( v, this.size, 3 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 3 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniform3fv( this.addr, data );
+
+	this.updateCache( data );
 
 }
 
 function setValueV4a( gl, v ) {
 
-	gl.uniform4fv( this.addr, flatten( v, this.size, 4 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 4 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniform4fv( this.addr, data );
+
+	this.updateCache( data );
 
 }
 
@@ -516,19 +537,40 @@ function setValueV4a( gl, v ) {
 
 function setValueM2a( gl, v ) {
 
-	gl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 4 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniformMatrix2fv( this.addr, false, data );
+
+	this.updateCache( data );
 
 }
 
 function setValueM3a( gl, v ) {
 
-	gl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 9 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniformMatrix3fv( this.addr, false, data );
+
+	this.updateCache( data );
 
 }
 
 function setValueM4a( gl, v ) {
 
-	gl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) );
+	var cache = this.cache;
+	var data = flatten( v, this.size, 16 );
+
+	if ( arraysEqual( cache, data ) ) return;
+
+	gl.uniformMatrix4fv( this.addr, false, data );
+
+	this.updateCache( data );
 
 }
 
@@ -630,6 +672,20 @@ function PureArrayUniform( id, activeInfo, addr ) {
 
 }
 
+PureArrayUniform.prototype.updateCache = function ( data ) {
+
+	var cache = this.cache;
+
+	if ( data instanceof Float32Array && cache.length !== data.length ) {
+
+		this.cache = new Float32Array( data.length );
+
+	}
+
+	copyArray( cache, data );
+
+};
+
 function StructuredUniform( id ) {
 
 	this.id = id;