bugfix uploadTexturePixels with nodejs (rare but reproducible gc bug in hide terrain)

h3d/impl/GlDriver.hx

@@ -1133,6 +1133,14 @@ class GlDriver extends Driver {
 			gl.texImage2D(face, mipLevel, t.t.internalFmt, pixels.width, pixels.height, 0, getChannels(t.t), t.t.pixelFmt, stream);
 		#elseif js
 		var bufLen = pixels.stride * pixels.height;
+		#if hxnodejs
+		if( (pixels:Dynamic).bytes.b.hxBytes != null ) {
+			// if the pixels are a nodejs buffer, their might be GC'ed while upload !
+			// might be some problem with Node/WebGL relation
+			// let's clone the pixels in order to have a fresh JS bytes buffer
+			pixels = pixels.clone();
+		}
+		#end
 		var buffer : ArrayBufferView = switch( t.format ) {
 		case RGBA32F, R32F, RG32F, RGB32F: new Float32Array(@:privateAccess pixels.bytes.b.buffer, pixels.offset, bufLen>>2);
 		case RGBA16F, R16F, RG16F, RGB16F: new Uint16Array(@:privateAccess pixels.bytes.b.buffer, pixels.offset, bufLen>>1);