shadow glitches in my custom light

[asger60]

Hey, I’m experimenting with custom light in my graph, it works ok, but I get some strange glitches in the shadows when the light changes.

Heres the graph:

And the code in the custom function goes like this:

void LWRPLightingFunction_float (float3 ObjPos, out float3 Direction, out float3 Color, out float ShadowAttenuation)
{
#ifdef LIGHTWEIGHT_LIGHTING_INCLUDED
    //Actual light data from the pipeline
    Light light = GetMainLight(GetShadowCoord(GetVertexPositionInputs(ObjPos)));
    Direction = light.direction;
    Color = light.color;
    ShadowAttenuation = light.shadowAttenuation;
#else
    //Hardcoded data, used for the preview shader inside the graph where light functions are not available
    Direction = float3(-0.5, 0.5, -0.5);
    Color = float3(1, 1, 1);
    ShadowAttenuation = 0.4;
#endif
}

Is there something obvious I’m missing in order for this to work a little bit better?

[asger60]

Is it maybe because i’m using the emission output from the pbr master to render the color/shadow, and somehow have shadows twice?

[larsbertram1]

@asger60

but I get some strange glitches in the shadows when the light changes.

it looks like ordinary self shadowing artifacts to me. you may try to adjust the shadow bias (normal, depth) of the light.