#Trying to create a chaser Light effect around the blue circles

1 messages · Page 1 of 1 (latest)

foggy wren
#

I am just trying to make a chaser light effect so that the light appears to be circling around the sign. So far my attempts to write code to turn on emissions or anything along those lines has not worked. I tried using code for point lights but i needed like 39 of em and they stopped working after a few

Screenshot_2023-11-15_at_12.34.41_PM.png Screenshot_2023-11-15_at_12.34.48_PM.png
foggy wren
# 
Shader "Custom/LightChaser"
{
    Properties
    {
        _MainTex ("Texture", 2D) = "white" { }
        _LightData ("Light Data", 2D) = "white" { } // Use a texture for light information
        _ChaserSpeed ("Chaser Speed", Range(0, 10)) = 1
    }

    SubShader
    {
        Tags { "RenderType"="Opaque" }
        LOD 100

        CGPROGRAM
        #pragma surface surf Lambert

        sampler2D _MainTex;
        sampler2D _LightData; // Texture to store light information
        float _ChaserSpeed;

        struct Input
        {
            float2 uv_MainTex;
        };

        void surf(Input IN, inout SurfaceOutput o)
        {
            // Extract light information based on UV coordinates
            float lightIntensity = tex2D(_MainTex, IN.uv_MainTex).r;

            // Sample the light texture for additional information
            float lightData = tex2D(_LightData, IN.uv_MainTex).r;

            // TODO: Use lightIntensity and lightData to control the appearance of each light

            // Example: Animated chaser effect
            float chaser = frac(_ChaserSpeed * _Time.y);
            float distance = abs(IN.uv_MainTex.x - chaser);
            float chaserEffect = smoothstep(0.01, 0.05, distance);

            // Combine lightIntensity and chaserEffect to create the final output
            o.Albedo = lightIntensity * chaserEffect;

            o.Alpha = 1.0;
        }
        ENDCG
    }

    FallBack "Diffuse"
}
elfin orbit
#

According to the code you've posted, you are using the UV.x value to time the effect. Are the different light meshes spread along the UV.x axis ?

#

Furthermore, you may want to use the o.Emission output to fake emitting light effect instead of Albedo

foggy wren
median whale
#

The first step is to create/layout the UV coordinates of the sign's yellow dots so that they're all in a horizontal row, lined up between zero and one. Have you done that, Sam?

foggy wren
#

I have just made a texture like this

Screenshot_2023-11-15_at_12.png
foggy wren