Opacity masking in Cryengine 3

Eliteabix

Hey guys, once again having trouble with Cryengine xD I do not get along with this editor at all

Im trying to aadjust the transparancy of part of a mesh (the center, white part)


Its supposed to be like a frosty, crystalline glass but Im having trouble adjusting opacity, I have it working in cryengine but this is as far as I can get in-engine

Alpha test at full -


changing opacity -


this is it in marmoset with correct opacity (just swithed blend mode to premultiplied alpha)


The the lighter block inside the main mesh will be a liquid hopefully set to a different opacity

any advice would be really helpful

MichaelElphick

This took me ages to work out too! in the material editor, by the opacity setting there is an opacity value you can switch between Alpha Blend and Alpha Test.

alpha blend produces soft and semi transparent results, you pretty much jack the slider up until you get something you like.

( http://freesdk.crydev.net/display/SDKDOC2/Basic+Material+Parameters)

Eliteabix

MichaelElphick wrote: »

This took me ages to work out too! in the material editor, by the opacity setting there is an opacity value you can switch between Alpha Blend and Alpha Test.

alpha blend produces soft and semi transparent results, you pretty much jack the slider up until you get something you like.

( http://freesdk.crydev.net/display/SDKDOC2/Basic+Material+Parameters)

Hey, thanks for the reply man, ive tried switching between additive, the last screenshot is with additive on, it just changes the opacity of the whole mesh =/

MichaelElphick

Are they currently one material?

Have you tried defining the two rock parts, and the glass type material as two different materials within a multi-material?

So one material will applied to the rock using normal parameters, while the other material will be applied to the glass type material and us the alpha settings.

Eliteabix

I did read something about that, ill look into it, thanks again dude.

Eliteabix

Sorted it using material IDs/Multi-Materials, appreciate the help dude =D

e-freak

yes, in general (in most engines for that matter) its better to split transparent and alpha based materials from each other to help with sorting and lighting.

also make sure that you save the texture with the transparency alpha channel as a cryTif, not a normal Tif to make sure that the Alpha information is correctly transferred to the compressed DDS that the engine uses.