[Part 10] Getting errors when I use ambient in code

[Layla]

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I’m getting an error that says “undeclared identifier ‘ambient'” This is my code.

           fixed4 frag (v2f i) : SV_Target
            {
                fixed4 col = tex2D(_MainTex, i.screenPos);
                if (i.screenPos.y > _WaterLevel.x * i.screenPos.x + _WaterLevel.y - _WaterLevel.x * 0.5) return col;

                float depth = LinearEyeDepth(tex2D(_DepthMap, i.screenPos.xy));

                depth = saturate((depth - _DepthStart) / _DepthEnd);

                return lerp(col, (0.5 * ambient + _DepthColor * 0.5) * ambient.w, depth);

[Terence]

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Can you try adding this to your code?

fixed4 frag(v2f i) : SV_Target
{
    fixed4 col = tex2D(_MainTex, i.screenPos);
    if (i.screenPos.y > _WaterLevel.x * i.screenPos.x + _WaterLevel.y - _WaterLevel.x * 0.5) return col;

    float depth = LinearEyeDepth(tex2D(_DepthMap, i.screenPos.xy));
    depth = saturate((depth - _DepthStart) / _DepthEnd);

    // Use Unity's ambient light
    fixed4 ambient = UNITY_LIGHTMODEL_AMBIENT;

    return lerp(col, (0.5 * ambient + _DepthColor * 0.5) * ambient.w, depth);
}

• A_DONUT

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[A_DONUT]

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Is this doubt solved?

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