using System ;
using UnityEngine.Rendering ;
#if UNITY_EDITOR
using UnityEditor ;
#endif
}
}
public class SssProfileAsset : ScriptableObject
{
[SerializeField]
private SubsurfaceScatteringProfile m_Profile = new SubsurfaceScatteringProfile ( ) ;
public SubsurfaceScatteringProfile data
{
get { return m_Profile ; }
set { m_Profile = value ; }
}
}
public enum TexturingMode : int { PreScatter = 0 , PostScatter = 1 , PreAndPostScatter = 2 , MaxValue = 2 } ;
public enum TexturingMode : int { PreScatter = 0 , PostScatter = 1 , PreAndPostScatter = 2 , MaxValue = 2 } ;
public int numProfiles ;
public TexturingMode texturingMode ;
public int transmissionFlags ;
public SubsurfaceScatteringProfile [ ] profiles ;
public float [ ] thicknessRemaps ;
public Vector4 [ ] halfRcpVariancesAndLerpWeights ;
public Vector4 [ ] halfRcpWeightedVariances ;
public Vector4 [ ] filterKernels ;
public int numProfiles ;
public TexturingMode texturingMode ;
public int transmissionFlags ;
public SssProfileAsset [ ] profileAssets ;
public float [ ] thicknessRemaps ;
public Vector4 [ ] halfRcpVariancesAndLerpWeights ;
public Vector4 [ ] halfRcpWeightedVariances ;
public Vector4 [ ] filterKernels ;
public bool isInitialized ;
private static SssProfileAsset s_DefaultSssAsset = null ;
numProfiles = 1 ;
texturingMode = 0 ;
profiles = new SubsurfaceScatteringProfile [ numProfiles ] ;
// Unity's limitation: can't do anything useful with assets in the constructor...
Reset ( ) ;
}
public void Reset ( )
{
numProfiles = 1 ;
texturingMode = TexturingMode . PostScatter ;
profileAssets = null ;
thicknessRemaps = null ;
halfRcpVariancesAndLerpWeights = null ;
halfRcpWeightedVariances = null ;
filterKernels = null ;
isInitialized = false ;
}
public void Initialize ( )
{
profileAssets = new SssProfileAsset [ numProfiles ] ;
profiles [ i ] = new SubsurfaceScatteringProfile ( ) ;
profileAssets [ i ] = defaultSssProfileAsset ;
OnValidate ( ) ;
isInitialized = true ;
}
static public SubsurfaceScatteringSettings Create ( )
{
SubsurfaceScatteringSettings settings = new SubsurfaceScatteringSettings ( ) ;
settings . Initialize ( ) ;
return settings ;
if ( profiles . Length > maxNumProfiles )
if ( ! isInitialized )
Array . Resize ( ref profiles , maxNumProfiles ) ;
Initialize ( ) ;
numProfiles = profiles . Length ;
numProfiles = Math . Max ( 1 , Math . Min ( profileAssets . Length , maxNumProfiles ) ) ;
if ( profileAssets . Length ! = numProfiles )
{
Array . Resize ( ref profileAssets , numProfiles ) ;
}
for ( int i = 0 ; i < numProfiles ; i + + )
{
if ( profileAssets [ i ] = = null )
{
// No invalid/empty assets allowed!
profileAssets [ i ] = defaultSssProfileAsset ;
}
}
if ( thicknessRemaps = = null )
if ( thicknessRemaps = = null | | thicknessRemaps . Length ! = ( maxNumProfiles * 2 ) )
if ( halfRcpVariancesAndLerpWeights = = null )
if ( halfRcpVariancesAndLerpWeights = = null | | halfRcpVariancesAndLerpWeights . Length ! = ( maxNumProfiles * 2 ) )
if ( halfRcpWeightedVariances = = null )
if ( halfRcpWeightedVariances = = null | | halfRcpWeightedVariances . Length ! = maxNumProfiles )
{
halfRcpWeightedVariances = new Vector4 [ maxNumProfiles ] ;
}
for ( int i = 0 ; i < numProfiles ; i + + )
{
transmissionFlags | = ( profiles [ i ] . enableTransmission ? 1 : 0 ) < < i ;
SubsurfaceScatteringProfile profile = profileAssets [ i ] . data ; // Reference var
c . r = Mathf . Clamp ( profiles [ i ] . stdDev1 . r , 0.05f , 2.0f ) ;
c . g = Mathf . Clamp ( profiles [ i ] . stdDev1 . g , 0.05f , 2.0f ) ;
c . b = Mathf . Clamp ( profiles [ i ] . stdDev1 . b , 0.05f , 2.0f ) ;
transmissionFlags | = ( profile . enableTransmission ? 1 : 0 ) < < i ;
c . r = Mathf . Clamp ( profile . stdDev1 . r , 0.05f , 2.0f ) ;
c . g = Mathf . Clamp ( profile . stdDev1 . g , 0.05f , 2.0f ) ;
c . b = Mathf . Clamp ( profile . stdDev1 . b , 0.05f , 2.0f ) ;
profiles [ i ] . stdDev1 = c ;
profile . stdDev1 = c ;
c . r = Mathf . Clamp ( profiles [ i ] . stdDev2 . r , 0.05f , 2.0f ) ;
c . g = Mathf . Clamp ( profiles [ i ] . stdDev2 . g , 0.05f , 2.0f ) ;
c . b = Mathf . Clamp ( profiles [ i ] . stdDev2 . b , 0.05f , 2.0f ) ;
c . r = Mathf . Clamp ( profile . stdDev2 . r , 0.05f , 2.0f ) ;
c . g = Mathf . Clamp ( profile . stdDev2 . g , 0.05f , 2.0f ) ;
c . b = Mathf . Clamp ( profile . stdDev2 . b , 0.05f , 2.0f ) ;
profiles [ i ] . stdDev2 = c ;
profile . stdDev2 = c ;
profiles [ i ] . lerpWeight = Mathf . Clamp01 ( profiles [ i ] . lerpWeight ) ;
profile . lerpWeight = Mathf . Clamp01 ( profile . lerpWeight ) ;
profiles [ i ] . thicknessRemap . x = Mathf . Clamp ( profiles [ i ] . thicknessRemap . x , 0 , profiles [ i ] . thicknessRemap . y ) ;
profiles [ i ] . thicknessRemap . y = Mathf . Max ( profiles [ i ] . thicknessRemap . x , profiles [ i ] . thicknessRemap . y ) ;
profile . thicknessRemap . x = Mathf . Clamp ( profile . thicknessRemap . x , 0 , profile . thicknessRemap . y ) ;
profile . thicknessRemap . y = Mathf . Max ( profile . thicknessRemap . x , profile . thicknessRemap . y ) ;
profiles [ i ] . UpdateKernelAndVarianceData ( ) ;
profile . UpdateKernelAndVarianceData ( ) ;
thicknessRemaps [ 2 * i ] = profiles [ i ] . thicknessRemap . x ;
thicknessRemaps [ 2 * i + 1 ] = profiles [ i ] . thicknessRemap . y - profiles [ i ] . thicknessRemap . x ;
halfRcpVariancesAndLerpWeights [ 2 * i ] = profiles [ i ] . halfRcpVariances [ 0 ] ;
halfRcpVariancesAndLerpWeights [ 2 * i ] . w = 1.0f - profiles [ i ] . lerpWeight ;
halfRcpVariancesAndLerpWeights [ 2 * i + 1 ] = profiles [ i ] . halfRcpVariances [ 1 ] ;
halfRcpVariancesAndLerpWeights [ 2 * i + 1 ] . w = profiles [ i ] . lerpWeight ;
halfRcpWeightedVariances [ i ] = profiles [ i ] . halfRcpWeightedVariances ;
SubsurfaceScatteringProfile profile = profileAssets [ i ] . data ; // Reference var
thicknessRemaps [ 2 * i ] = profile . thicknessRemap . x ;
thicknessRemaps [ 2 * i + 1 ] = profile . thicknessRemap . y - profile . thicknessRemap . x ;
halfRcpVariancesAndLerpWeights [ 2 * i ] = profile . halfRcpVariances [ 0 ] ;
halfRcpVariancesAndLerpWeights [ 2 * i ] . w = 1.0f - profile . lerpWeight ;
halfRcpVariancesAndLerpWeights [ 2 * i + 1 ] = profile . halfRcpVariances [ 1 ] ;
halfRcpVariancesAndLerpWeights [ 2 * i + 1 ] . w = profile . lerpWeight ;
halfRcpWeightedVariances [ i ] = profile . halfRcpWeightedVariances ;
filterKernels [ n * i + j ] = profiles [ i ] . filterKernel [ j ] ;
filterKernels [ n * i + j ] = profile . filterKernel [ j ] ;
// --- Private Methods ---
private static SssProfileAsset defaultSssProfileAsset
{
get
{
if ( s_DefaultSssAsset = = null )
{
s_DefaultSssAsset = ScriptableObject . CreateInstance < SssProfileAsset > ( ) ;
AssetDatabase . CreateAsset ( s_DefaultSssAsset , "Assets/ScriptableRenderPipeline/HDRenderPipeline/Default SSS Profile.asset" ) ;
AssetDatabase . SaveAssets ( ) ;
}
return s_DefaultSssAsset ;
}
}
#if UNITY_EDITOR
public class SssProfileAssetFactory
{
[MenuItem("Assets/Create/Subsurface Scattering Profile", priority = 666)]
static void MenuCreatePostProcessingProfile ( )
{
Texture2D icon = EditorGUIUtility . FindTexture ( "ScriptableObject Icon" ) ;
ProjectWindowUtil . StartNameEditingIfProjectWindowExists ( 0 , ScriptableObject . CreateInstance < DoCreateSssProfileAsset > ( ) , "New SSS Profile.asset" , icon , null ) ;
}
public static SssProfileAsset CreateSssProfileAssetAtPath ( string path )
{
SssProfileAsset profile = ScriptableObject . CreateInstance < SssProfileAsset > ( ) ;
profile . name = System . IO . Path . GetFileName ( path ) ;
AssetDatabase . CreateAsset ( profile , path ) ;
return profile ;
}
}
class DoCreateSssProfileAsset : UnityEditor . ProjectWindowCallback . EndNameEditAction
{
public override void Action ( int instanceId , string pathName , string resourceFile )
{
SssProfileAsset profile = SssProfileAssetFactory . CreateSssProfileAssetAtPath ( pathName ) ;
ProjectWindowUtil . ShowCreatedAsset ( profile ) ;
}
}
[CustomEditor(typeof(SssProfileAsset))]
public class SssProfileAssetEditor : Editor {
private class Styles
{
public readonly GUIContent sssProfilePreview0 = new GUIContent ( "Profile preview" ) ;
public readonly GUIContent sssProfilePreview1 = new GUIContent ( "Shows the fraction of light scattered from the source as radius increases to 1." ) ;
public readonly GUIContent sssProfilePreview2 = new GUIContent ( "Note that the intensity of the region in the center may be clamped." ) ;
public readonly GUIContent sssTransmittancePreview0 = new GUIContent ( "Transmittance preview" ) ;
public readonly GUIContent sssTransmittancePreview1 = new GUIContent ( "Shows the fraction of light passing through the object as thickness increases to 1." ) ;
public readonly GUIContent sssProfileStdDev1 = new GUIContent ( "Standard deviation #1" , "Determines the shape of the 1st Gaussian filter. Increases the strength and the radius of the blur of the corresponding color channel." ) ;
public readonly GUIContent sssProfileStdDev2 = new GUIContent ( "Standard deviation #2" , "Determines the shape of the 2nd Gaussian filter. Increases the strength and the radius of the blur of the corresponding color channel." ) ;
public readonly GUIContent sssProfileLerpWeight = new GUIContent ( "Filter interpolation" , "Controls linear interpolation between the two Gaussian filters." ) ;
public readonly GUIContent sssProfileTransmission = new GUIContent ( "Enable transmission" , "Toggles simulation of light passing through thin objects. Depends on the thickness of the material." ) ;
public readonly GUIContent sssProfileThicknessRemap = new GUIContent ( "Thickness remap" , "Remaps the thickness parameter from [0, 1] to the desired range." ) ;
public readonly GUIStyle centeredMiniBoldLabel = new GUIStyle ( GUI . skin . label ) ;
public Styles ( )
{
centeredMiniBoldLabel . alignment = TextAnchor . MiddleCenter ;
centeredMiniBoldLabel . fontSize = 1 0 ;
centeredMiniBoldLabel . fontStyle = FontStyle . Bold ;
}
}
private static Styles styles
{
get
{
if ( s_Styles = = null )
{
s_Styles = new Styles ( ) ;
}
return s_Styles ;
}
}
private static Styles s_Styles = null ;
private Material m_ProfileMaterial , m_TransmittanceMaterial ;
private RenderTexture m_ProfileImage , m_TransmittanceImage ;
private SerializedProperty m_Profile , m_ProfileStdDev1 , m_ProfileStdDev2 ,
m_ProfileLerpWeight , m_ProfileTransmission ,
m_ProfileThicknessRemap ;
void OnEnable ( )
{
m_Profile = serializedObject . FindProperty ( "m_Profile" ) ;
m_ProfileStdDev1 = m_Profile . FindPropertyRelative ( "stdDev1" ) ;
m_ProfileStdDev2 = m_Profile . FindPropertyRelative ( "stdDev2" ) ;
m_ProfileLerpWeight = m_Profile . FindPropertyRelative ( "lerpWeight" ) ;
m_ProfileTransmission = m_Profile . FindPropertyRelative ( "enableTransmission" ) ;
m_ProfileThicknessRemap = m_Profile . FindPropertyRelative ( "thicknessRemap" ) ;
m_ProfileMaterial = Utilities . CreateEngineMaterial ( "Hidden/HDRenderPipeline/DrawGaussianProfile" ) ;
m_TransmittanceMaterial = Utilities . CreateEngineMaterial ( "Hidden/HDRenderPipeline/DrawTransmittanceGraph" ) ;
m_ProfileImage = new RenderTexture ( 2 5 6 , 2 5 6 , 0 , RenderTextureFormat . DefaultHDR ) ;
m_TransmittanceImage = new RenderTexture ( 1 6 , 2 5 6 , 0 , RenderTextureFormat . DefaultHDR ) ;
}
public override void OnInspectorGUI ( ) {
serializedObject . Update ( ) ;
EditorGUILayout . PropertyField ( m_ProfileStdDev1 , styles . sssProfileStdDev1 ) ;
EditorGUILayout . PropertyField ( m_ProfileStdDev2 , styles . sssProfileStdDev2 ) ;
EditorGUILayout . PropertyField ( m_ProfileLerpWeight , styles . sssProfileLerpWeight ) ;
EditorGUILayout . PropertyField ( m_ProfileTransmission , styles . sssProfileTransmission ) ;
Vector2 thicknessRemap = m_ProfileThicknessRemap . vector2Value ;
EditorGUILayout . LabelField ( "Min thickness: " , thicknessRemap . x . ToString ( ) ) ;
EditorGUILayout . LabelField ( "Max thickness: " , thicknessRemap . y . ToString ( ) ) ;
EditorGUILayout . MinMaxSlider ( styles . sssProfileThicknessRemap , ref thicknessRemap . x , ref thicknessRemap . y , 0 , 1 0 ) ;
m_ProfileThicknessRemap . vector2Value = thicknessRemap ;
EditorGUILayout . Space ( ) ;
EditorGUILayout . LabelField ( styles . sssProfilePreview0 , styles . centeredMiniBoldLabel ) ;
EditorGUILayout . LabelField ( styles . sssProfilePreview1 , EditorStyles . centeredGreyMiniLabel ) ;
EditorGUILayout . LabelField ( styles . sssProfilePreview2 , EditorStyles . centeredGreyMiniLabel ) ;
EditorGUILayout . Space ( ) ;
// Draw the profile.
m_ProfileMaterial . SetColor ( "_StdDev1" , m_ProfileStdDev1 . colorValue ) ;
m_ProfileMaterial . SetColor ( "_StdDev2" , m_ProfileStdDev2 . colorValue ) ;
m_ProfileMaterial . SetFloat ( "_LerpWeight" , m_ProfileLerpWeight . floatValue ) ;
EditorGUI . DrawPreviewTexture ( GUILayoutUtility . GetRect ( 2 5 6 , 2 5 6 ) , m_ProfileImage , m_ProfileMaterial , ScaleMode . ScaleToFit , 1.0f ) ;
EditorGUILayout . Space ( ) ;
EditorGUILayout . LabelField ( styles . sssTransmittancePreview0 , styles . centeredMiniBoldLabel ) ;
EditorGUILayout . LabelField ( styles . sssTransmittancePreview1 , EditorStyles . centeredGreyMiniLabel ) ;
EditorGUILayout . Space ( ) ;
// Draw the transmittance graph.
m_TransmittanceMaterial . SetColor ( "_StdDev1" , m_ProfileStdDev1 . colorValue ) ;
m_TransmittanceMaterial . SetColor ( "_StdDev2" , m_ProfileStdDev2 . colorValue ) ;
m_TransmittanceMaterial . SetFloat ( "_LerpWeight" , m_ProfileLerpWeight . floatValue ) ;
m_TransmittanceMaterial . SetVector ( "_ThicknessRemap" , m_ProfileThicknessRemap . vector2Value ) ;
EditorGUI . DrawPreviewTexture ( GUILayoutUtility . GetRect ( 1 6 , 1 6 ) , m_TransmittanceImage , m_TransmittanceMaterial , ScaleMode . ScaleToFit , 1 6.0f ) ;
serializedObject . ApplyModifiedProperties ( ) ;
}
}
#endif
}
Evgenii Golubev
8 年前