Is it possible to set view matrix in vertex in .mat file

[ywang218]

I just pass multiple variables in shader in .mat file and wanna do the computation in gpu and got the position(finalPosition), is there any way I can do something like gl_Position = projectionMatrix * modelViewMatrix * finalPosition; in vertex in .mat file to set render in glsl part.
There are my .mat file like:

material {
name: cube,
requires : [ color , custom0, custom1, custom2],
shadingModel : lit,
culling: none,
parameters : [
{
type: float,
name: lineWidth
},
{
type: float,
name: opacity
},
{
type: float4,
name: color
}
]
}

vertex {
// uniform vec4 interpolatedData;
void materialVertex(inout MaterialVertexInputs material) {
// interpolatedData = vec4(0.0, 0.0, 0.0, 1.0);;
float4 position = material.worldPosition;
float3 previous = getCustom0().xyz;
float3 next = getCustom1().xyz;
float side = getCustom2().x;
vec3 dir;
if(position.xyz == next) {
dir = normalize(position.xyz - previous);
} else if (position.xyz == previous) {
dir = normalize(next - position.xyz);
} else {
dir = normalize(normalize(position.xyz - previous) + normalize(next - previous));
}
vec4 normal = vec4(-dir.y, dir.x, 0.0, 1.0);
normal.xy *= 0.5 * materialParams.lineWidth;
vec4 finalPosition = vec4(position.xyz, 1.0);
finalPosition.xy += normal.xy * side;
position = finalPosition;
// material.vertex.xy = (getClipFromViewMatrix() * getViewFromWorldMatrix() * finalPosition).xy;
}
}

fragment {
void material(inout MaterialInputs material) {
prepareMaterial(material);
// material.baseColor = float4(materialParams.color, 1.0);// getColor();
material.baseColor = getColor();
float4 curColor = materialParams.color;
// vec4 testColor = interpolatedData;
}
}

Thanks so much!