try with AlphaTestFalOloff to 0.5
I think i’ll give you my model that seems to be a better way to resolve this problem since in the tree you gave there were not rectangles edges around leaves with or without the transparency activated.
Indeed i tried first with alpha at 0.5 , can i send the model to you in private ?
Thanks in advance.
alright send me a PM
message sent thank you
It works great for me using this material file
Material Feuilles : Common/MatDefs/Light/Lighting.j3md {
Transparent On
MaterialParameters {
DiffuseMap : Models/Terrain/Arbre/feuilles3.png
UseAlpha : true
AlphaDiscardThreshold : 0.5
UseMaterialColors : true
Ambient : .5 .5 .5 .5
Diffuse : 0.7 0.7 0.7 1
Specular : 0 0 0 1
Shininess : 16
}
AdditionalRenderState {
Blend Alpha
AlphaTestFalloff 0.50
FaceCull Off
}
}
with AlphaTestFalloff to 0.50
All right , i made a mistake by confounding 2 files sorry i disturbed you for nothing , but i stil have a strange alpha problem around leaves according to this screen 
danath said:
All right , i made a mistake by confounding 2 files sorry i disturbed you for nothing , but i stil have a strange alpha problem around leaves according to this screen
There's probably no way to fix that, except for using alpha to coverage with multisample.
understood momoko_fan
nehon said:
Also i added some parameters to the cartoonEdgeFilter
edgeWidth = 1.0;
edgeIntensity = 1.0;
normalThreshold = 0.5;
depthThreshold = 0.1;
normalSensitivity = 1.0;
depthSensitivity = 10.0;
try them to tweak the appearance of the edges.
About that can you add the possibility to tweak the color of the edge ? I tried to do that on my own but when i tried to change the path of the j3md material i had an exception , thank you.
It’s in, there is now an setEdgeColor method on the CartoonEdgeFilter.
Did i said you are the best ?
By the way i want to be your Shader Padawan , you absolutely need to learn to me so i can do a lot of shaders for the community and help a lot !
Train you I won’t. Turn to the dark side I’m afraid you would. 
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damn 
then i’ll be a space pirate >.>