Render to texture

[reddozen]

Is there a way to render a scene to a texture built into babylon?

 

Kinda like this:

http://learningwebgl.com/blog/?p=1786

[burbonvagin]

maybe a mirror texture? i don't think the mirror plane has to be the same as the mesh that the texture is applied to. This might be nonsense because I don't completely understand mirror textures. Tutorial link: https://github.com/BabylonJS/Babylon.js/wiki/14-Advanced-Texturing

[Vousk-prod.]

For the moment I had no need for render to texture in babylon, so I'm not able to answer you precisely, but I know renderTargetTexture exists, I'm pretty sure this could do the job.

 

http://doc.babylonjs.com/page.php?p=24711

 

(you can easily find related post in the forum)

[Vousk-prod.]

BTW, mirror texture would'n be a good solution, it doesn't do exactly what needed, and it's a lot CPU consuming

[reddozen]

I guess the better question is can I push things just to the renderbuffer for preprocessing things like depth and visible color mapping, or does this have to be completely done outside of Babylon?

[GameMonetize]

You can do that easily with a renderTexture:

var renderTexture = new BABYLON.RenderTargetTexture("render", 512, scene, true);scene.customRenderTargets.push(renderTexture);

[reddozen]

Awesome, I'll play with this tonight. I'll let you know if I run into anything weird.

[Temechon]

Here is a playground sample with it : http://www.babylonjs.com/playground/#QOO0F

 

The magic happens when you move the camera !

 

Cheers, 

[reddozen]

very cool. I wont be displaying the texture though. I'm going to use it to limit what renders in the scene. Even with octrees on etc, it's still loading models that aren't actually visible to the camera. Like stuff that is inside buildings etc. That being the case, I give up on the octree stuff, and am going to try another route.

 

I'll post my results as this will also be used for level of detail through depth mapping.