Question by PeriodoBlu · Feb 16 at 10:42 PM · shader variables initialization

variable not initialized in shader ,variable used without having been completely initialized

Hi i cant figure this out since its the firt time that i use a custom shader!

void MainLight_float(float3 WorldPos, out float3 Direction, out float3 Color, out float DistanceAtten, out float ShadowAtten) { #ifdef SHADERGRAPH_PREVIEW Direction = float3(0.5, 0.5, 0); Color = 1; DistanceAtten = 1; ShadowAtten = 1; #else

     float4 shadowCoord = TransformWorldToShadowCoord(WorldPos);
 
     Light mainLight = GetMainLight(shadowCoord);
     Direction = mainLight.direction;
     Color = mainLight.color;
     DistanceAtten = mainLight.distanceAttenuation;
 
     #if !defined(_MAIN_LIGHT_SHADOWS) || defined(_RECEIVE_SHADOWS_OFF)
         ShadowAtten = 1.0h;
     #else
             ShadowSamplingData shadowSamplingData = GetMainLightSamplingData();
             float shadowStrength = GetMainLightShadowStrength();
             ShadowAtten = SampleShadowmap(shadowCoord, TEXTURE2D_ARGS(_MainLightShadowmapTexture, sampler_MainLightShadowmapTexture), shadowSamplingData, shadowStrength, false);
     #endif
 #endif
 }

[1]: /storage/temp/192716-cattura.png

, hi im having this problem with the shader and i cant figure it out

 float4 shadowCoord = TransformWorldToShadowCoord(WorldPos);

 Light mainLight = GetMainLight(shadowCoord);
 Direction = mainLight.direction;
 Color = mainLight.color;
 DistanceAtten = mainLight.distanceAttenuation;

 #if !defined(_MAIN_LIGHT_SHADOWS) || defined(_RECEIVE_SHADOWS_OFF)
     ShadowAtten = 1.0h;
 #else
         ShadowSamplingData shadowSamplingData = GetMainLightSamplingData();
         float shadowStrength = GetMainLightShadowStrength();
         ShadowAtten = SampleShadowmap(shadowCoord, TEXTURE2D_ARGS(_MainLightShadowmapTexture, sampler_MainLightShadowmapTexture), shadowSamplingData, shadowStrength, false);
 #endif