IVSmokeSmokePreset.h

// Copyright (c) 2026, Team SDB. All rights reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Engine/DataAsset.h"
#include "IVSmokeSmokePreset.generated.h"
 
/**
 * Per-volume smoke appearance preset.
 * Controls visual properties that can vary between individual smoke volumes.
 *
 * For global rendering settings (noise, ray marching, scattering, etc.),
 * see UIVSmokeSettings in Project Settings > Plugins > IVSmoke.
 */
UCLASS(BlueprintType)
class IVSMOKE_API UIVSmokeSmokePreset : public UPrimaryDataAsset
{
    GENERATED_BODY()
 
public:
    // ============================================================================
    // Appearance (Per-Volume)
    // ============================================================================
 
    /** Base color of the smoke. */
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "IVSmoke|Appearance")
    FLinearColor SmokeColor = FLinearColor(0.8f, 0.8f, 0.8f, 1.0f);
 
    /** Light absorption coefficient. Higher = denser, more opaque smoke. */
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "IVSmoke|Appearance", meta = (ClampMin = "0.0", ClampMax = "1.0"))
    float SmokeAbsorption = 0.1f;
 
    /** Base density multiplier for this volume. */
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "IVSmoke|Appearance", meta = (ClampMin = "0.0", ClampMax = "10.0"))
    float VolumeDensity = 1.0f;
 
    // ============================================================================
    // UPrimaryDataAsset Interface
    // ============================================================================
 
    virtual FPrimaryAssetId GetPrimaryAssetId() const override
    {
        return FPrimaryAssetId(TEXT("IVSmokeSmokePreset"), GetFName());
    }
};