jME shader help

Troubleshooting effects
1

Could someone get me on the right track with a jME shader tutorial.



I'm used to dealing with following constructs (for good or bad):

  • creating shader program
  • creating vertex and fragment shader
  • loading vertex and fragment source into shader
  • creating stateset
  • applying shader program to stateset
  • applying stateset to sub-tree in scene graph
  • …



    I'm not used to seeing the texture combiner API functions … as done in jmeTest.TestBumpMapping.



    Do I need to do some sort of mental paradigm shift?
2

The combiner stuff is for fixed function texture tricks.  That test is not using shaders at all and you shouldn't need to touch texture combine state stuff for shader effects.

3

Doh! … need to read up on texture combiner functions in GL … have been doing by hand in shaders.


4

Any tutorials or documentation on shader API?

5

No, there is not much on shaders in our documentation.  It's an area of code that is going to get a lot more attention soon, but anything you might want to write up on it in the wiki would be appreciated.

6

Well, from what I've seen in the example source the API seems easy enough to follow … similar to other I've used.  But, it would help NOOBs that haven't been exposed to it.

7

I've been away on some other tasks for a couple of months … C++ world.



Has anyone added a shader tutorial?

8

Contributions are always appreciated and that one would be greatly appreciated by many, myself included. :slight_smile:

9

i would like to know about the jme shaders as well~ havent been using any of that part~

10

jME shaders are not some kind of special jME thing… They are just GLSL/ARB shaders so you should be able to find lots of information on the net about syntax and functions, etc.