Multi pass shaders, are they still working?

Solar2D Advanced Graphics
#1

Are the multi-pass shaders still supported in Corona?
I tried launching the sample code FilterGraphDemo in Corona and I’m getting a Runtime Error

ERROR: Could not find or load shader (filter.exampleBlurGaussian) /Applications/CoronaSDK/SampleCode/Graphics-Premium/FilterGraphDemo/main.lua:43: attempt to index field 'effect' (a nil value) stack traceback: /Applications/CoronaSDK/SampleCode/Graphics-Premium/FilterGraphDemo/main.lua:43: in main chunk

There seems to be no documentation at all regarding multi-pass shaders in the Corona Docs, the only info I got was from this blog post (http://coronalabs.com/blog/2013/10/17/tutorial-multi-pass-shaders-in-graphics-2-0/)

The doc effects page (http://docs.coronalabs.com/guide/graphics/effects.html) also has no mention of multi-pass.

So I’m wondering if it has been discontinued or I’m doing something wrong.

Thanks

BTW, I’m running Corona Version 2015.2560 (2015.2.12)

#2

Can you drop back a few daily builds and see if you’re still having the issue?
 

Thanks

Rob

#3

Hey Rob, 

I just downloaded and tested a few builds and the last version the multi-pass shaders are working is the the 2015.2551.

I noticed in the changelog of 2552 there has been some work on the shaders:

  • Shader: Finer-grained precision control, shader compiler error logging, and effect definition.

So I’m wondering if maybe the syntax has changed?

#4

I’ve alerted engineering to try and get some more information about what changed.

#5

Sorry, we recently had to add namespacing, so the name of the effect changes slightly when you are defining custom multi-pass effects:

“filter.exampleBlurGaussian” => “filter. custom.exampleBlurGaussian”

#6

Thanks for the info Walter. 

I think it would be nice to add a page in the docs for the multi pass shaders.

#7

Can you drop back a few daily builds and see if you’re still having the issue?
 

Thanks

Rob

#8

Hey Rob, 

I just downloaded and tested a few builds and the last version the multi-pass shaders are working is the the 2015.2551.

I noticed in the changelog of 2552 there has been some work on the shaders:

  • Shader: Finer-grained precision control, shader compiler error logging, and effect definition.

So I’m wondering if maybe the syntax has changed?

#9

I’ve alerted engineering to try and get some more information about what changed.

#10

Sorry, we recently had to add namespacing, so the name of the effect changes slightly when you are defining custom multi-pass effects:

“filter.exampleBlurGaussian” => “filter. custom.exampleBlurGaussian”

#11

Thanks for the info Walter. 

I think it would be nice to add a page in the docs for the multi pass shaders.