Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Per-Vertex Alpha Paint

Posted on 2007-12-06
Medium Priority
Last Modified: 2013-12-04
In 3DS Max 9.0, I'm trying to set the colour and alpha value of each vertex in a simple plane so that I can create an alpha gradient. I found how to set each colour but am having problems setting the alpha channel.
Question by:BOINGED
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3

Author Comment

ID: 20442227
Is this even possible?

Expert Comment

ID: 20454779
i'd like to know that too actually

Expert Comment

ID: 20503473
I did not notice that the first comment was by you...i don't think there is such a thing as setting or simply put,  manipulating vertex colors in Max. They change from yellow to red when you select them after a geometry is converted to a mesh.

If you are saying display vertices on a plane, you might want to use a dotted map on the plane.

I hope that answers your question.
Learn how to optimize MySQL for your business need

With the increasing importance of apps & networks in both business & personal interconnections, perfor. has become one of the key metrics of successful communication. This ebook is a hands-on business-case-driven guide to understanding MySQL query parameter tuning & database perf


Author Comment

ID: 20536530
I found this with a google search

It is possible to change vertex colours, for example to make a gradient fill across a cube. What I want is an alpha-gradient without using a texture. The article I linked touches upon alpha but doesn't do exactly what I want.

Expert Comment

ID: 20548379
From what I infer it talks about the vertextpaint modifier which is doing the job of painting sides starting from a particular  vertex.

As far your question goes you were asking about manipulating colors and alpha for each vertex. Which i still maintain to be a non-existent argument.

if i'm not getting your question correctly, i'm sorry about it.

Accepted Solution

faz0222 earned 900 total points
ID: 20821609
Once you have some vertex setup with alpha (edit poly > Vertex alpha settings) do this
- Utilities > Channel Info
- Select the "-2:Alpha" channel and click Copy and then click Add to create a new channel
- Select the new channel at the bottom and click Paste, give a name to your alpha channel (Note that your new channel should be channel 2 but any number is fine)
- Open Material Editor, select a new standard material and apply it to you model
- In the opacity channel apply a "Vertex color" Material
- Inside the Vertex color material select your channel 2 (or any other channel number you have created)
You are done ;) do some render test

Author Comment

ID: 20873637
That's great - will look at it today hopefully.

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Artificial Intelligence comes in many forms, and for game developers, Path-Finding is an important ability for making an NPC (Non-Playable Character) maneuver through terrain.  A* is a particularly easy way to approach it.  I’ll start with the algor…
Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question