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How to set alpha in fragment.fx


Ingo Chou
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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"]        });
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