I am a beginner in shader programming and I use URP. I wanted to create a raymarching cloud shader and keep getting this error - Parse error: syntax error, unexpected '}' in line 69. I don't know what to do and any help is very much appreciated. Here is the shader -
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Shader "Custom/ProceduralCloudsMobile"
{
Properties
{
_CloudColor("Cloud Color", Color) = (1,1,1,1)
_ScatterColor("Scatter Color", Color) = (1,1,1,1)
_ScatterAmount("Scatter Amount", Range(0, 1)) = 0.5
_CloudDensity("Cloud Density", Range(0, 1)) = 0.5
_CloudSharpness("Cloud Sharpness", Range(0, 1)) = 0.5
_CloudSpeed("Cloud Speed", Range(0, 1)) = 0.5
_CloudScale("Cloud Scale", Range(0, 10)) = 2
_CloudHeight("Cloud Height", Range(0, 1000)) = 500
_StepSize("Step Size", Range(0, 1)) = 0.01
_MaxSteps("Max Steps", Range(0, 100)) = 50
}
SubShader
{
Tags { "RenderType" = "Opaque" }
LOD 100
HLSLINCLUDE
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/PBSLights.hlsl"
float3 GetCloudNoise(float3 pos)
{
return cnoise(pos * _CloudScale * _CloudSharpness + _Time.y * _CloudSpeed);
}
float SampleCloudDensity(float3 pos)
{
return saturate(GetCloudNoise(pos).r * _CloudDensity);
}
float SampleScatterAmount(float3 pos)
{
return saturate(GetCloudNoise(pos).r * _ScatterAmount);
}
void surf(SurfaceOutput o, inout SurfaceInput input)
{
// Calculate 3D position of the current pixel in world space
float3 worldPos = mul(unity_ObjectToWorld, float4(input.uv, 0, 1)).xyz;
worldPos.y += _CloudHeight;
// Cast a ray into the scene and sample the cloud density along the ray
float3 rayDir = normalize(worldPos - _WorldSpaceCameraPos);
float rayLength = length(worldPos - _WorldSpaceCameraPos);
float3 rayPos = _WorldSpaceCameraPos;
float cloudDensity = 0;
for (int i = 0; i < _MaxSteps; i++)
{
cloudDensity += SampleCloudDensity(rayPos) * _StepSize;
rayPos += rayDir * _StepSize;
if (cloudDensity >= 1)
break;
}
// Calculate scatter amount at the final ray position
float scatterAmount = SampleScatterAmount(rayPos);
// Blend cloud color and scatter color based on density and scatter amount
fixed4 cloudColor = lerp(_CloudColor, _ScatterColor, scatterAmount);
o.Albedo = cloudColor.rgb * cloudDensity;
o.Alpha = cloudDensity;
}
ENDHLSL
}
}
`
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