Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.
CloseFor some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.
CloseCurrently active render texture.
All rendering goes into the active RenderTexture.
If the active RenderTexture is null
everything is rendered in the main window.
Setting RenderTexture.active is the same as calling Graphics.SetRenderTarget. Typically
you change or query the active render texture when implementing custom graphics effects;
if all you need is to make a Camera render into a texture then use Camera.targetTexture
instead.
When a RenderTexture becomes active its hardware rendering context is automatically created if
it hasn't been created already.
See Also: Graphics.SetRenderTarget.
using UnityEngine; using System.Collections;
// Get the contents of a RenderTexture into a Texture2D public class ExampleClass : MonoBehaviour { static public Texture2D GetRTPixels(RenderTexture rt) { // Remember currently active render texture RenderTexture currentActiveRT = RenderTexture.active;
// Set the supplied RenderTexture as the active one RenderTexture.active = rt;
// Create a new Texture2D and read the RenderTexture image into it Texture2D tex = new Texture2D(rt.width, rt.height); tex.ReadPixels(new Rect(0, 0, tex.width, tex.height), 0, 0);
// Restorie previously active render texture RenderTexture.active = currentActiveRT; return tex; } }
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thanks for helping to make the Unity documentation better!