How to set alpha in fragment.fx

[Ingo Chou]

Hi,

 

I try to set alpha in fragment.fx with code : gl_FragColor = vec4(finalColor, 0.4);

 

but it displays almost white, not transparency.

 

BTW, the shader works well.

 

How can I set transparency in fragment.fx?

 

Thanks for your help.

[GameMonetize]

Hello

 

you are doing the right thing, but you also need to mark the shaderMaterial to enable alpha blending =:

var cloudMaterial = new BABYLON.ShaderMaterial("cloud", scene, {            vertexElement: "vertexShaderCode",            fragmentElement: "fragmentShaderCode"        },        {            needAlphaBlending: true,            attributes: ["position", "uv"],            uniforms: ["worldViewProjection"],            samplers: ["textureSampler"]        });

[Ingo Chou]

Ok, thank you.