Fix for "don't use render texture property"

Hello,

Here is the fix for the warning for everyone who got the package from npm:
`three.webglrenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead.`

Locate your shaderpass file in your node_modules, and search for this line:
`this.uniforms[ this.textureID ].value = readBuffer;`

Next, replace that line with this:
`this.uniforms[ this.textureID ].value = readBuffer.texture;`

As you can see all that is added to this line is .texture to the readBuffer to fix the warning.