public void SetGlobalShadowOverride(GPUShadowType shadowType, ShadowAlgorithm shadowAlgorithm, ShadowVariant shadowVariant, ShadowPrecision shadowPrecision, bool enable)
{
m_GlobalOverrides[(int)shadowType].enabled = enable;
m_GlobalOverrides[(int)shadowType].algorithm = shadowAlgorithm;
m_GlobalOverrides[(int)shadowType].variant = shadowVariant;
m_GlobalOverrides[(int)shadowType].precision = shadowPrecision;
}
public void Draw(Light l)
{
AdditionalShadowData asd = l.GetComponent <AdditionalShadowData>();
Debug.Assert(asd != null, "Light has no valid AdditionalShadowData component attached.");
GPUShadowType shadowType = GetShadowLightType(l);
// check if this has supported shadows
if ((int)shadowType >= ShadowConstants.Counts.k_GPUShadowType)
{
return;
}
int shadowAlgorithm;
int shadowVariant;
int shadowPrecision;
bool globalOverride = m_GlobalOverrides[(int)shadowType].enabled;
if (globalOverride)
{
shadowAlgorithm = (int)m_GlobalOverrides[(int)shadowType].algorithm;
shadowVariant = (int)m_GlobalOverrides[(int)shadowType].variant;
shadowPrecision = (int)m_GlobalOverrides[(int)shadowType].precision;
}
else
{
asd.GetShadowAlgorithm(out shadowAlgorithm, out shadowVariant, out shadowPrecision);
}
DrawWidgets(l, shadowType, (ShadowAlgorithm)shadowAlgorithm, (ShadowVariant)shadowVariant, (ShadowPrecision)shadowPrecision, globalOverride);
}
public void Register(GPUShadowType type, ShadowPrecision precision, ShadowAlgorithm algorithm, string algorithmDescriptor, ShadowVariant[] variants, string[] variantDescriptors, VariantDelegate[] variantDelegates)
{
if (Validate(algorithmDescriptor, variants, variantDescriptors, variantDelegates))
{
Register(m_Entries[(int)type], precision, algorithm, algorithmDescriptor, variants, variantDescriptors, variantDelegates);
}
}
public bool GetGlobalShadowOverride(GPUShadowType shadowType, ref GPUShadowAlgorithm algo)
{
if (m_GlobalOverrides[(int)shadowType].enabled)
{
algo = ShadowUtils.Pack(m_GlobalOverrides[(int)shadowType].algorithm, m_GlobalOverrides[(int)shadowType].variant, m_GlobalOverrides[(int)shadowType].precision);
}
return(m_GlobalOverrides[(int)shadowType].enabled);
}
protected override void PruneShadowCasters(Camera camera, VisibleLight[] lights, ref VectorArray <int> shadowRequests, ref ShadowRequestVector requestsGranted, out uint totalRequestCount)
{
Debug.Assert(shadowRequests.Count() > 0);
// at this point the array is sorted in order of some importance determined by the prioritize function
requestsGranted.Reserve(shadowRequests.Count());
totalRequestCount = 0;
ShadowmapBase.ShadowRequest sreq = new ShadowmapBase.ShadowRequest();
uint totalSlots = ResetMaxShadows();
// there's a 1:1 mapping between the index in the shadowRequests array and the element in requestsGranted at the same index.
// if the prune function skips requests it must make sure that the array is still compact
m_TmpSortKeys.Reset(shadowRequests.Count());
for (uint i = 0, count = shadowRequests.Count(); i < count && totalSlots > 0; ++i)
{
int requestIdx = shadowRequests[i];
VisibleLight vl = lights[requestIdx];
bool add = false;
int facecount = 0;
GPUShadowType shadowType = GPUShadowType.Point;
switch (vl.lightType)
{
case LightType.Directional: add = m_MaxShadows[(int)GPUShadowType.Directional, 0]-- >= 0; shadowType = GPUShadowType.Directional; facecount = m_ShadowSettings.directionalLightCascadeCount; break;
case LightType.Point: add = m_MaxShadows[(int)GPUShadowType.Point, 0]-- >= 0; shadowType = GPUShadowType.Point; facecount = 6; break;
case LightType.Spot: add = m_MaxShadows[(int)GPUShadowType.Spot, 0]-- >= 0; shadowType = GPUShadowType.Spot; facecount = 1; break;
}
if (add)
{
sreq.instanceId = vl.light.GetInstanceID();
sreq.index = (uint)requestIdx;
sreq.facemask = (uint)(1 << facecount) - 1;
sreq.shadowType = shadowType;
totalRequestCount += (uint)facecount;
requestsGranted.AddUnchecked(sreq);
totalSlots--;
}
else
{
m_TmpSortKeys.AddUnchecked(requestIdx);
}
}
// make sure that shadowRequests contains all light indices that are going to cast a shadow first, then the rest
shadowRequests.Reset();
requestsGranted.ExtractTo(ref shadowRequests, (ShadowmapBase.ShadowRequest request) => { return((int)request.index); });
m_TmpSortKeys.ExtractTo(ref shadowRequests, (long idx) => { return((int)idx); });
}
public static bool MapLightType(LightType lt, out GPULightType gputype, out GPUShadowType shadowtype)
{
switch (lt)
{
case LightType.Spot: gputype = GPULightType.Spot; shadowtype = GPUShadowType.Spot; return(true);
case LightType.Directional: gputype = GPULightType.Directional; shadowtype = GPUShadowType.Directional; return(true);
case LightType.Point: gputype = GPULightType.Point; shadowtype = GPUShadowType.Point; return(true);
default:
case LightType.Area: gputype = GPULightType.Rectangle; shadowtype = GPUShadowType.Unknown; return(false); // area lights by themselves can't be mapped to any GPU type
}
}
public static bool MapLightType(LightArchetype la, LightType lt, out GPUShadowType shadowtype)
{
switch (la)
{
case LightArchetype.Punctual:
return(MapLightType(lt, out shadowtype));
case LightArchetype.Area:
shadowtype = GPUShadowType.Unknown;
return(true);
case LightArchetype.Projector:
shadowtype = GPUShadowType.Unknown;
return(true);
default:
shadowtype = GPUShadowType.Unknown;
return(false); // <- probably not what you want
}
}
// default implementation based on legacy Unity
static public GPUShadowType ShadowLightType(Light l)
{
GPUShadowType shadowType = GPUShadowType.Unknown;
switch (l.type)
{
case LightType.Spot:
shadowType = GPUShadowType.Spot;
break;
case LightType.Directional:
shadowType = GPUShadowType.Directional;
break;
case LightType.Point:
shadowType = GPUShadowType.Point;
break;
// area lights by themselves can't be mapped to any GPU type
}
return(shadowType);
}
public void PackShadowType(GPUShadowType type, GPUShadowAlgorithm algorithm)
{
shadowType = (uint)type << ShadowConstants.Bits.k_GPUShadowAlgorithm | (uint)algorithm;
}
void SetGlobalOverrideEnabled(GPUShadowType shadowType, bool enabled)
{
m_GlobalOverrides[(int)shadowType].enabled = enabled;
}
void DrawWidgets(Light l, GPUShadowType shadowType, ShadowAlgorithm shadowAlgorithm, ShadowVariant shadowVariant, ShadowPrecision shadowPrecision, bool globalOverride)
{
#if UNITY_EDITOR
var dict = m_Entries[(int)shadowType];
int[] algoOptions = new int[dict.Count];
GUIContent[] algoDescs = new GUIContent[dict.Count];
int idx = 0;
foreach (var entry in dict)
{
algoOptions[idx] = (int)entry.Key;
algoDescs[idx] = new GUIContent(entry.Value.algorithmDesc);
idx++;
}
using (new UnityEditor.EditorGUI.DisabledGroupScope(globalOverride))
{
UnityEditor.EditorGUI.BeginChangeCheck();
shadowAlgorithm = (ShadowAlgorithm)UnityEditor.EditorGUILayout.IntPopup(new GUIContent("Shadow Algorithm"), (int)shadowAlgorithm, algoDescs, algoOptions);
if (UnityEditor.EditorGUI.EndChangeCheck())
{
shadowVariant = 0;
}
}
UnityEditor.EditorGUI.indentLevel++;
Entry e = dict[shadowAlgorithm];
int varsAvailable = e.variantsAvailable;
int[] varOptions = new int[varsAvailable];
GUIContent[] varDescs = new GUIContent[varsAvailable];
idx = 0;
for (int writeIdx = 0; writeIdx < varsAvailable; idx++)
{
if (e.variantDels[idx].low != null || e.variantDels[idx].high != null)
{
varOptions[writeIdx] = idx;
varDescs[writeIdx] = new GUIContent(e.variantDescs[idx]);
writeIdx++;
}
}
UnityEditor.EditorGUILayout.BeginHorizontal();
using (new UnityEditor.EditorGUI.DisabledGroupScope(globalOverride))
{
shadowVariant = (ShadowVariant)UnityEditor.EditorGUILayout.IntPopup(new GUIContent("Variant + Precision"), (int)shadowVariant, varDescs, varOptions);
if (e.variantDels[(int)shadowVariant].low != null && e.variantDels[(int)shadowVariant].high != null)
{
GUIContent[] precDescs = new GUIContent[] { new GUIContent("High"), new GUIContent("Low") };
int[] precOptions = new int[] { 0, 1 };
shadowPrecision = (ShadowPrecision)UnityEditor.EditorGUILayout.IntPopup((int)shadowPrecision, precDescs, precOptions, GUILayout.MaxWidth(65));
}
else
{
using (new UnityEditor.EditorGUI.DisabledScope())
{
GUIContent[] precDescs = new GUIContent[] { new GUIContent(e.variantDels[(int)shadowVariant].low == null ? "High" : "Low") };
int[] precOptions = new int[] { e.variantDels[(int)shadowVariant].low == null ? 0 : 1 };
UnityEditor.EditorGUILayout.IntPopup(precOptions[0], precDescs, precOptions, GUILayout.MaxWidth(65));
shadowPrecision = (ShadowPrecision)precOptions[0];
}
}
}
AdditionalShadowData asd = l.GetComponent <AdditionalShadowData>();
GPUShadowAlgorithm packedAlgo = ShadowUtils.Pack(shadowAlgorithm, shadowVariant, shadowPrecision);
int[] shadowData = null;
if (!GUILayout.Button("Reset", GUILayout.MaxWidth(80.0f)))
{
shadowData = asd.GetShadowData((int)packedAlgo);
}
UnityEditor.EditorGUILayout.EndHorizontal();
if (shadowPrecision == ShadowPrecision.Low)
{
e.variantDels[(int)shadowVariant].low(l, shadowAlgorithm, shadowVariant, shadowPrecision, ref shadowData);
}
else
{
e.variantDels[(int)shadowVariant].high(l, shadowAlgorithm, shadowVariant, shadowPrecision, ref shadowData);
}
asd.SetShadowAlgorithm((int)shadowAlgorithm, (int)shadowVariant, (int)shadowPrecision, (int)packedAlgo, shadowData);
UnityEditor.EditorGUI.indentLevel--;
#endif
}
public static bool MapLightType(LightArchetype la, LightType lt, out GPULightType gputype, out GPUShadowType shadowtype)
{
switch (la)
{
case LightArchetype.Punctual: return(MapLightType(lt, out gputype, out shadowtype));
case LightArchetype.Rectangle: gputype = GPULightType.Rectangle; shadowtype = GPUShadowType.Unknown; return(true);
case LightArchetype.Line: gputype = GPULightType.Line; shadowtype = GPUShadowType.Unknown; return(true);
default: gputype = GPULightType.Spot; shadowtype = GPUShadowType.Unknown; return(false); // <- probably not what you want
}
}
public static bool MapLightType(LightType lt, AdditionalLightData ald, out GPULightType gputype, out GPUShadowType shadowtype)
{
shadowtype = GPUShadowType.Unknown; // Default for all non-punctual lights
gputype = GPULightType.Spot;
switch (ald.archetype)
{
case LightArchetype.Punctual: return(MapLightType(lt, out gputype, out shadowtype));
case LightArchetype.Area: gputype = (ald.lightWidth > 0) ? GPULightType.Rectangle : GPULightType.Line; return(true);
case LightArchetype.Projector:
switch (lt)
{
case LightType.Directional: gputype = GPULightType.ProjectorOrtho; return(true);
case LightType.Spot: gputype = GPULightType.ProjectorPyramid; return(true);
default: Debug.Assert(false, "Projectors can only be Spot or Directional lights."); return(false);
}
default: return(false); // <- probably not what you want
}
}