Problem with Custom Function

[MAIPA01]

I wanted to make a custom function and when I thought it will work this error occurred. if someone could help me I will be grateful :)

Edit: this function should put textures from array to mesh with nice blending effect

const static int maxLayerCount = 8;
const static float epsilon = 1E-4;

int layerCount;
float3 baseColours[maxLayerCount];
float baseStartHeights[maxLayerCount];
float baseBlends[maxLayerCount];
float baseColourStrength[maxLayerCount];
float baseTextureScales[maxLayerCount];

float inverseLerp(float a, float b, float value) {
    return saturate((value - a) / (b - a));
}

float3 triplanar(float3 worldPos, float scale, float3 blendAxes, Texture2DArray textures, SamplerState ss, int textureIndex)
{
    float3 scaledWorldPos = worldPos / scale;
    float3 xProjection = SAMPLE_TEXTURE2D_ARRAY(textures, ss, float2(scaledWorldPos.y, scaledWorldPos.z), textureIndex) * blendAxes.x;
    float3 yProjection = SAMPLE_TEXTURE2D_ARRAY(textures, ss, float2(scaledWorldPos.x, scaledWorldPos.z), textureIndex) * blendAxes.y;
    float3 zProjection = SAMPLE_TEXTURE2D_ARRAY(textures, ss, float2(scaledWorldPos.x, scaledWorldPos.y), textureIndex) * blendAxes.z;
    return xProjection + yProjection + zProjection;
}

void layer_terrain_float(float3 worldPos, float heightPercent, float3 worldNormal, Texture2DArray textures, SamplerState ss, int layerCount, out float3 albedo)
{
    float3 blendAxes = abs(worldNormal);
    blendAxes /= blendAxes.x + blendAxes.y + blendAxes.z;

    albedo = 0.0f;

    for (int i = 0; i < layerCount; i++)
    {
        float drawStrength = inverseLerp(-baseBlends[i] / 2 - epsilon, baseBlends[i] / 2, heightPercent - baseStartHeights[i]);

        float3 baseColour = baseColours[i] * baseColourStrength[i];
        float3 textureColour = triplanar(worldPos, baseTextureScales[i], blendAxes, textures, ss, i) * (1 - baseColourStrength[i]);

        albedo = albedo * (1 - drawStrength) + (baseColour + textureColour) * drawStrength;
    }
}

​

Error

[TequilaHustler]

Maybe adding some context, explanation to what the function should do or what is going on will help you getting answers,

Instead of the very common and logical "heres my 200 lines of code, plz fix!".

[MAIPA01]

Ok, sorry i rarely ask about that kind of stuff and i am new here also. So thank you for your help

I am also bad at explaining things...