gryff Posted March 30, 2017 Share Posted March 30, 2017 I've been experimenting with the ability to use the opacityTexture with materials. And I have a couple of questions. First, what is the functionality of the opacityTexture in BJS. In the PG demo of fire, it appears to be acting as an alpha map that gives a general shape of the flame. Candle stick However, when I try to use the same flame and alpha map on a simple plane in a playground - I just get the square image of fire Simple plane Why? Does the use of .opacityTextures require the fireMaterial script? If it does, that is not indicated in the docs. Secondly, I tried using the same two textures in Blender - see result below. A simple plane has one material with two textures - flame and opacity.- and as you can see both have an impact on what is rendered. However, when I export the plane to .babylon I get this curious comment: Quote WARNING: Opacity non-std way to indicate opacity, use material alpha to also use Opacity texture Looking at the .babylon file the material only contains the flame texture - no reference at all to the opacity texture used. What does that mean? And how do I export these alpha map textures from Blender ? Edit: I have the opacity texture exporting now by changing the value of the "alpha" in image below to 1. But I still get the warning message and the result viewed in the sandbox is just the square plane with the flame texture cheers, gryff Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.