static void DrawBoxFadeHandle(InfluenceVolumeUI s, SerializedInfluenceVolume d, Editor o, Object sourceAsset, HierarchicalBox box, SerializedProperty positive, SerializedProperty negative)
{
box.center = d.offset.vector3Value - (positive.vector3Value - negative.vector3Value) * 0.5f;
box.size = d.boxSize.vector3Value - positive.vector3Value - negative.vector3Value;
box.monoHandle = !d.editorAdvancedModeEnabled.boolValue;
//set up parent box too for clamping
s.boxBaseHandle.center = d.offset.vector3Value;
s.boxBaseHandle.size = d.boxSize.vector3Value;
EditorGUI.BeginChangeCheck();
box.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(sourceAsset, "Modified Influence Volume");
var halfInfluenceSize = d.boxSize.vector3Value * .5f;
var blendDistancePositive = d.offset.vector3Value - box.center - box.size * .5f + halfInfluenceSize;
var blendDistanceNegative = box.center - d.offset.vector3Value - box.size * .5f + halfInfluenceSize;
positive.vector3Value = Vector3.Min(blendDistancePositive, halfInfluenceSize);
negative.vector3Value = Vector3.Min(blendDistanceNegative, halfInfluenceSize);
d.Apply();
}
}
static void DrawBoxFadeHandle(SerializedInfluenceVolume serialized, Editor owner, Transform transform, HierarchicalBox box, SerializedProperty positive, SerializedProperty negative)
{
using (new Handles.DrawingScope(Matrix4x4.TRS(transform.position, transform.rotation, Vector3.one)))
{
box.center = -(positive.vector3Value - negative.vector3Value) * 0.5f;
box.size = serialized.boxSize.vector3Value - positive.vector3Value - negative.vector3Value;
box.monoHandle = !serialized.editorAdvancedModeEnabled.boolValue;
EditorGUI.BeginChangeCheck();
box.DrawHandle();
box.DrawHull(true);
if (EditorGUI.EndChangeCheck())
{
var influenceCenter = Vector3.zero;
var halfInfluenceSize = serialized.boxSize.vector3Value * .5f;
var centerDiff = box.center - influenceCenter;
var halfSizeDiff = halfInfluenceSize - box.size * .5f;
var positiveNew = halfSizeDiff - centerDiff;
var negativeNew = halfSizeDiff + centerDiff;
var blendDistancePositive = Vector3.Max(Vector3.zero, Vector3.Min(positiveNew, halfInfluenceSize));
var blendDistanceNegative = Vector3.Max(Vector3.zero, Vector3.Min(negativeNew, halfInfluenceSize));
positive.vector3Value = blendDistancePositive;
negative.vector3Value = blendDistanceNegative;
}
}
}
void OnSceneGUI()
{
DensityVolume densityVolume = target as DensityVolume;
HierarchicalBox shapeBox = shapeBoxes[densityVolume];
HierarchicalBox blendBox = blendBoxes[densityVolume];
using (new Handles.DrawingScope(Matrix4x4.TRS(densityVolume.transform.position, densityVolume.transform.rotation, Vector3.one)))
{
if (EditMode.editMode == k_EditBlend || EditMode.editMode == k_EditShape)
{
//contained must be initialized in all case
shapeBox.center = Vector3.zero;
shapeBox.size = densityVolume.parameters.size;
}
if (EditMode.editMode == k_EditBlend)
{
blendBox.monoHandle = !densityVolume.parameters.advancedFade;
blendBox.center = CenterBlendLocalPosition(densityVolume);
blendBox.size = BlendSize(densityVolume);
EditorGUI.BeginChangeCheck();
blendBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(densityVolume, "Change Density Volume Blend");
//work in local space to compute the change on positiveFade and negativeFade
Vector3 newCenterBlendLocalPosition = blendBox.center;
Vector3 halfSize = blendBox.size * 0.5f;
Vector3 size = densityVolume.parameters.size;
Vector3 posFade = newCenterBlendLocalPosition + halfSize;
posFade.x = 0.5f - posFade.x / size.x;
posFade.y = 0.5f - posFade.y / size.y;
posFade.z = 0.5f - posFade.z / size.z;
Vector3 negFade = newCenterBlendLocalPosition - halfSize;
negFade.x = 0.5f + negFade.x / size.x;
negFade.y = 0.5f + negFade.y / size.y;
negFade.z = 0.5f + negFade.z / size.z;
densityVolume.parameters.positiveFade = posFade;
densityVolume.parameters.negativeFade = negFade;
}
}
if (EditMode.editMode == k_EditShape)
{
shapeBox.monoHandle = !densityVolume.parameters.advancedFade;
EditorGUI.BeginChangeCheck();
shapeBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { densityVolume, densityVolume.transform }, "ChangeDensity Volume Bounding Box");
densityVolume.transform.position += densityVolume.transform.rotation * shapeBox.center;
densityVolume.parameters.size = shapeBox.size;
}
}
}
}
void OnSceneGUI()
{
for (int i = 0; i < m_TypedTargets.Length; ++i)
{
var comp = m_TypedTargets[i];
var tr = comp.transform;
var prox = comp.proxyVolume;
using (new Handles.DrawingScope(Matrix4x4.TRS(Vector3.zero, tr.rotation, Vector3.one)))
{
switch (prox.shape)
{
case ProxyShape.Box:
m_BoxHandle.center = Quaternion.Inverse(tr.rotation) * tr.position;
m_BoxHandle.size = prox.boxSize;
EditorGUI.BeginChangeCheck();
m_BoxHandle.DrawHull(true);
m_BoxHandle.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { tr, comp }, "Update Proxy Volume Size");
tr.position = tr.rotation * m_BoxHandle.center;
prox.boxSize = m_BoxHandle.size;
}
break;
case ProxyShape.Sphere:
m_SphereHandle.center = Quaternion.Inverse(tr.rotation) * tr.position;
m_SphereHandle.radius = prox.sphereRadius;
EditorGUI.BeginChangeCheck();
m_SphereHandle.DrawHull(true);
m_SphereHandle.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { tr, comp }, "Update Proxy Volume Size");
tr.position = tr.rotation * m_SphereHandle.center;
prox.sphereRadius = m_SphereHandle.radius;
}
break;
case ProxyShape.Infinite:
break;
}
}
}
}
static void DrawBoxHandle(InfluenceVolumeUI s, SerializedInfluenceVolume d, Editor o, Object sourceAsset, HierarchicalBox box)
{
box.center = d.offset.vector3Value;
box.size = d.boxSize.vector3Value;
EditorGUI.BeginChangeCheck();
box.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(sourceAsset, "Modified Base Volume AABB");
d.offset.vector3Value = box.center;
Vector3 blendPositive = d.boxBlendDistancePositive.vector3Value;
Vector3 blendNegative = d.boxBlendDistanceNegative.vector3Value;
Vector3 blendNormalPositive = d.boxBlendNormalDistancePositive.vector3Value;
Vector3 blendNormalNegative = d.boxBlendNormalDistanceNegative.vector3Value;
Vector3 size = box.size;
d.boxSize.vector3Value = size;
Vector3 halfSize = size * .5f;
for (int i = 0; i < 3; ++i)
{
blendPositive[i] = Mathf.Clamp(blendPositive[i], 0f, halfSize[i]);
blendNegative[i] = Mathf.Clamp(blendNegative[i], 0f, halfSize[i]);
blendNormalPositive[i] = Mathf.Clamp(blendNormalPositive[i], 0f, halfSize[i]);
blendNormalNegative[i] = Mathf.Clamp(blendNormalNegative[i], 0f, halfSize[i]);
}
d.boxBlendDistancePositive.vector3Value = blendPositive;
d.boxBlendDistanceNegative.vector3Value = blendNegative;
d.boxBlendNormalDistancePositive.vector3Value = blendNormalPositive;
d.boxBlendNormalDistanceNegative.vector3Value = blendNormalNegative;
if (d.editorAdvancedModeEnabled.boolValue)
{
d.editorAdvancedModeBlendDistancePositive.vector3Value = d.boxBlendDistancePositive.vector3Value;
d.editorAdvancedModeBlendDistanceNegative.vector3Value = d.boxBlendDistanceNegative.vector3Value;
d.editorAdvancedModeBlendNormalDistancePositive.vector3Value = d.boxBlendNormalDistancePositive.vector3Value;
d.editorAdvancedModeBlendNormalDistanceNegative.vector3Value = d.boxBlendNormalDistanceNegative.vector3Value;
}
else
{
d.editorSimplifiedModeBlendDistance.floatValue = Mathf.Min(
d.boxBlendDistancePositive.vector3Value.x,
d.boxBlendDistancePositive.vector3Value.y,
d.boxBlendDistancePositive.vector3Value.z,
d.boxBlendDistanceNegative.vector3Value.x,
d.boxBlendDistanceNegative.vector3Value.y,
d.boxBlendDistanceNegative.vector3Value.z);
d.boxBlendDistancePositive.vector3Value = d.boxBlendDistanceNegative.vector3Value = Vector3.one * d.editorSimplifiedModeBlendDistance.floatValue;
d.editorSimplifiedModeBlendNormalDistance.floatValue = Mathf.Min(
d.boxBlendNormalDistancePositive.vector3Value.x,
d.boxBlendNormalDistancePositive.vector3Value.y,
d.boxBlendNormalDistancePositive.vector3Value.z,
d.boxBlendNormalDistanceNegative.vector3Value.x,
d.boxBlendNormalDistanceNegative.vector3Value.y,
d.boxBlendNormalDistanceNegative.vector3Value.z);
d.boxBlendNormalDistancePositive.vector3Value = d.boxBlendNormalDistanceNegative.vector3Value = Vector3.one * d.editorSimplifiedModeBlendNormalDistance.floatValue;
}
d.Apply();
}
}
static void DrawBoxHandle(SerializedInfluenceVolume serialized, Editor owner, Transform transform, HierarchicalBox box)
{
using (new Handles.DrawingScope(Matrix4x4.TRS(Vector3.zero, transform.rotation, Vector3.one)))
{
box.center = Quaternion.Inverse(transform.rotation) * transform.position;
box.size = serialized.boxSize.vector3Value;
EditorGUI.BeginChangeCheck();
box.DrawHull(true);
box.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
var newPosition = transform.rotation * box.center;
Undo.RecordObject(transform, "Moving Influence");
transform.position = newPosition;
// Clamp blend distances
var blendPositive = serialized.boxBlendDistancePositive.vector3Value;
var blendNegative = serialized.boxBlendDistanceNegative.vector3Value;
var blendNormalPositive = serialized.boxBlendNormalDistancePositive.vector3Value;
var blendNormalNegative = serialized.boxBlendNormalDistanceNegative.vector3Value;
var size = box.size;
serialized.boxSize.vector3Value = size;
var halfSize = size * .5f;
for (int i = 0; i < 3; ++i)
{
blendPositive[i] = Mathf.Clamp(blendPositive[i], 0f, halfSize[i]);
blendNegative[i] = Mathf.Clamp(blendNegative[i], 0f, halfSize[i]);
blendNormalPositive[i] = Mathf.Clamp(blendNormalPositive[i], 0f, halfSize[i]);
blendNormalNegative[i] = Mathf.Clamp(blendNormalNegative[i], 0f, halfSize[i]);
}
serialized.boxBlendDistancePositive.vector3Value = blendPositive;
serialized.boxBlendDistanceNegative.vector3Value = blendNegative;
serialized.boxBlendNormalDistancePositive.vector3Value = blendNormalPositive;
serialized.boxBlendNormalDistanceNegative.vector3Value = blendNormalNegative;
if (serialized.editorAdvancedModeEnabled.boolValue)
{
serialized.editorAdvancedModeBlendDistancePositive.vector3Value = serialized.boxBlendDistancePositive.vector3Value;
serialized.editorAdvancedModeBlendDistanceNegative.vector3Value = serialized.boxBlendDistanceNegative.vector3Value;
serialized.editorAdvancedModeBlendNormalDistancePositive.vector3Value = serialized.boxBlendNormalDistancePositive.vector3Value;
serialized.editorAdvancedModeBlendNormalDistanceNegative.vector3Value = serialized.boxBlendNormalDistanceNegative.vector3Value;
}
else
{
serialized.editorSimplifiedModeBlendDistance.floatValue = Mathf.Min(
serialized.boxBlendDistancePositive.vector3Value.x,
serialized.boxBlendDistancePositive.vector3Value.y,
serialized.boxBlendDistancePositive.vector3Value.z,
serialized.boxBlendDistanceNegative.vector3Value.x,
serialized.boxBlendDistanceNegative.vector3Value.y,
serialized.boxBlendDistanceNegative.vector3Value.z);
serialized.boxBlendDistancePositive.vector3Value = serialized.boxBlendDistanceNegative.vector3Value = Vector3.one * serialized.editorSimplifiedModeBlendDistance.floatValue;
serialized.editorSimplifiedModeBlendNormalDistance.floatValue = Mathf.Min(
serialized.boxBlendNormalDistancePositive.vector3Value.x,
serialized.boxBlendNormalDistancePositive.vector3Value.y,
serialized.boxBlendNormalDistancePositive.vector3Value.z,
serialized.boxBlendNormalDistanceNegative.vector3Value.x,
serialized.boxBlendNormalDistanceNegative.vector3Value.y,
serialized.boxBlendNormalDistanceNegative.vector3Value.z);
serialized.boxBlendNormalDistancePositive.vector3Value = serialized.boxBlendNormalDistanceNegative.vector3Value = Vector3.one * serialized.editorSimplifiedModeBlendNormalDistance.floatValue;
}
}
}
}
void OnSceneGUI()
{
//Note: for each handle to be independent when multi-selecting LocalVolumetricFog,
//We cannot rely hereon SerializedLocalVolumetricFog which is the collection of
//selected LocalVolumetricFog. Thus code is almost the same of the UI.
LocalVolumetricFog localVolumetricFog = target as LocalVolumetricFog;
switch (EditMode.editMode)
{
case k_EditBlend:
using (new Handles.DrawingScope(Matrix4x4.TRS(localVolumetricFog.transform.position, localVolumetricFog.transform.rotation, Vector3.one)))
{
//contained must be initialized in all case
s_ShapeBox.center = Vector3.zero;
s_ShapeBox.size = localVolumetricFog.parameters.size;
Color baseColor = localVolumetricFog.parameters.albedo;
baseColor.a = 8 / 255f;
s_BlendBox.baseColor = baseColor;
s_BlendBox.monoHandle = !localVolumetricFog.parameters.m_EditorAdvancedFade;
s_BlendBox.center = CenterBlendLocalPosition(localVolumetricFog);
s_BlendBox.size = BlendSize(localVolumetricFog);
EditorGUI.BeginChangeCheck();
s_BlendBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(localVolumetricFog, L10n.Tr("Change Local Volumetric Fog Blend"));
if (localVolumetricFog.parameters.m_EditorAdvancedFade)
{
//work in local space to compute the change on positiveFade and negativeFade
Vector3 newCenterBlendLocalPosition = s_BlendBox.center;
Vector3 halfSize = s_BlendBox.size * 0.5f;
Vector3 size = localVolumetricFog.parameters.size;
Vector3 posFade = newCenterBlendLocalPosition + halfSize;
posFade.x = 0.5f - posFade.x / size.x;
posFade.y = 0.5f - posFade.y / size.y;
posFade.z = 0.5f - posFade.z / size.z;
Vector3 negFade = newCenterBlendLocalPosition - halfSize;
negFade.x = 0.5f + negFade.x / size.x;
negFade.y = 0.5f + negFade.y / size.y;
negFade.z = 0.5f + negFade.z / size.z;
localVolumetricFog.parameters.m_EditorPositiveFade = posFade;
localVolumetricFog.parameters.m_EditorNegativeFade = negFade;
}
else
{
float uniformDistance = (s_ShapeBox.size.x - s_BlendBox.size.x) * 0.5f;
float max = Mathf.Min(s_ShapeBox.size.x, s_ShapeBox.size.y, s_ShapeBox.size.z) * 0.5f;
localVolumetricFog.parameters.m_EditorUniformFade = Mathf.Clamp(uniformDistance, 0f, max);
}
}
}
break;
case k_EditShape:
//important: if the origin of the handle's space move along the handle,
//handles displacement will appears as moving two time faster.
using (new Handles.DrawingScope(Matrix4x4.TRS(Vector3.zero, localVolumetricFog.transform.rotation, Vector3.one)))
{
//contained must be initialized in all case
s_ShapeBox.center = Quaternion.Inverse(localVolumetricFog.transform.rotation) * localVolumetricFog.transform.position;
s_ShapeBox.size = localVolumetricFog.parameters.size;
Vector3 previousSize = localVolumetricFog.parameters.size;
Vector3 previousPositiveFade = localVolumetricFog.parameters.m_EditorPositiveFade;
Vector3 previousNegativeFade = localVolumetricFog.parameters.m_EditorNegativeFade;
EditorGUI.BeginChangeCheck();
s_ShapeBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { localVolumetricFog, localVolumetricFog.transform }, L10n.Tr("Change Local Volumetric Fog Bounding Box"));
Vector3 newSize = s_ShapeBox.size;
localVolumetricFog.parameters.size = newSize;
Vector3 newPositiveFade = new Vector3(
newSize.x < 0.00001 ? 0 : previousPositiveFade.x * previousSize.x / newSize.x,
newSize.y < 0.00001 ? 0 : previousPositiveFade.y * previousSize.y / newSize.y,
newSize.z < 0.00001 ? 0 : previousPositiveFade.z * previousSize.z / newSize.z
);
Vector3 newNegativeFade = new Vector3(
newSize.x < 0.00001 ? 0 : previousNegativeFade.x * previousSize.x / newSize.x,
newSize.y < 0.00001 ? 0 : previousNegativeFade.y * previousSize.y / newSize.y,
newSize.z < 0.00001 ? 0 : previousNegativeFade.z * previousSize.z / newSize.z
);
for (int axeIndex = 0; axeIndex < 3; ++axeIndex)
{
if (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] > 1)
{
float overValue = (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] - 1f) * 0.5f;
newPositiveFade[axeIndex] -= overValue;
newNegativeFade[axeIndex] -= overValue;
if (newPositiveFade[axeIndex] < 0)
{
newNegativeFade[axeIndex] += newPositiveFade[axeIndex];
newPositiveFade[axeIndex] = 0f;
}
if (newNegativeFade[axeIndex] < 0)
{
newPositiveFade[axeIndex] += newNegativeFade[axeIndex];
newNegativeFade[axeIndex] = 0f;
}
}
}
localVolumetricFog.parameters.m_EditorPositiveFade = newPositiveFade;
localVolumetricFog.parameters.m_EditorNegativeFade = newNegativeFade;
//update normal mode blend
float max = Mathf.Min(newSize.x, newSize.y, newSize.z) * 0.5f;
float newUniformFade = Mathf.Clamp(localVolumetricFog.parameters.m_EditorUniformFade, 0f, max);
localVolumetricFog.parameters.m_EditorUniformFade = newUniformFade;
//update engine used percents
if (localVolumetricFog.parameters.m_EditorAdvancedFade)
{
localVolumetricFog.parameters.positiveFade = newPositiveFade;
localVolumetricFog.parameters.negativeFade = newNegativeFade;
}
else
{
localVolumetricFog.parameters.positiveFade =
localVolumetricFog.parameters.negativeFade = new Vector3(
1.0f - (newSize.x > 0.00000001 ? (newSize.x - newUniformFade) / newSize.x : 0f),
1.0f - (newSize.y > 0.00000001 ? (newSize.y - newUniformFade) / newSize.y : 0f),
1.0f - (newSize.z > 0.00000001 ? (newSize.z - newUniformFade) / newSize.z : 0f));
}
Vector3 delta = localVolumetricFog.transform.rotation * s_ShapeBox.center - localVolumetricFog.transform.position;
localVolumetricFog.transform.position += delta;
}
}
break;
}
}
void OnSceneGUI()
{
DensityVolume densityVolume = target as DensityVolume;
HierarchicalBox shapeBox = shapeBoxes[densityVolume];
HierarchicalBox blendBox = blendBoxes[densityVolume];
switch (EditMode.editMode)
{
case k_EditBlend:
using (new Handles.DrawingScope(Matrix4x4.TRS(densityVolume.transform.position, densityVolume.transform.rotation, Vector3.one)))
{
//contained must be initialized in all case
shapeBox.center = Vector3.zero;
shapeBox.size = densityVolume.parameters.size;
blendBox.monoHandle = !densityVolume.parameters.advancedFade;
blendBox.center = CenterBlendLocalPosition(densityVolume);
blendBox.size = BlendSize(densityVolume);
EditorGUI.BeginChangeCheck();
blendBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(densityVolume, "Change Density Volume Blend");
//work in local space to compute the change on positiveFade and negativeFade
Vector3 newCenterBlendLocalPosition = blendBox.center;
Vector3 halfSize = blendBox.size * 0.5f;
Vector3 size = densityVolume.parameters.size;
Vector3 posFade = newCenterBlendLocalPosition + halfSize;
posFade.x = 0.5f - posFade.x / size.x;
posFade.y = 0.5f - posFade.y / size.y;
posFade.z = 0.5f - posFade.z / size.z;
Vector3 negFade = newCenterBlendLocalPosition - halfSize;
negFade.x = 0.5f + negFade.x / size.x;
negFade.y = 0.5f + negFade.y / size.y;
negFade.z = 0.5f + negFade.z / size.z;
densityVolume.parameters.positiveFade = posFade;
densityVolume.parameters.negativeFade = negFade;
}
}
break;
case k_EditShape:
//important: if the origin of the handle's space move along the handle,
//handles displacement will appears as moving two time faster.
using (new Handles.DrawingScope(Matrix4x4.TRS(Vector3.zero, densityVolume.transform.rotation, Vector3.one)))
{
//contained must be initialized in all case
shapeBox.center = Quaternion.Inverse(densityVolume.transform.rotation) * densityVolume.transform.position;
shapeBox.size = densityVolume.parameters.size;
shapeBox.monoHandle = !densityVolume.parameters.advancedFade;
EditorGUI.BeginChangeCheck();
shapeBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { densityVolume, densityVolume.transform }, "ChangeDensity Volume Bounding Box");
densityVolume.parameters.size = shapeBox.size;
Vector3 delta = densityVolume.transform.rotation * shapeBox.center - densityVolume.transform.position;
densityVolume.transform.position += delta;;
}
}
break;
}
}
void OnSceneGUI()
{
//Note: for each handle to be independent when multi-selecting VolumeFalloff,
//We cannot rely hereon VolumeFalloff which is the collection of
//selected VolumeFalloff. Thus code is almost the same of the UI.
VolumeFalloff volumeFalloff = target as VolumeFalloff;
Matrix4x4 m = volumeFalloff.isTransformScaleUsed
? volumeFalloff.transform.localToWorldMatrix
: Matrix4x4.TRS(volumeFalloff.transform.position, volumeFalloff.transform.rotation, Vector3.one);
m = m * Matrix4x4.TRS(volumeFalloff.center, Quaternion.identity, Vector3.one);
switch (editMode)
{
case VolumeFalloffEditMode.Falloff:
using (new Handles.DrawingScope(m))
{
//contained must be initialized in all case
s_ShapeBox.center = float3.zero;
s_ShapeBox.size = volumeFalloff.size;
Color baseColor = volumeFalloff.debugColor;
baseColor.a = 8.0f / 255.0f;
s_BlendBox.baseColor = baseColor;
s_BlendBox.monoHandle = false; //!volumeFalloff.m_EditorAdvancedFade;
s_BlendBox.center = ComputeCenterBlendLocalPosition(volumeFalloff);
s_BlendBox.size = ComputeBlendSize(volumeFalloff);
EditorGUI.BeginChangeCheck();
s_BlendBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(volumeFalloff, "Change Volume Falloff Falloff Region");
//work in local space to compute the change on fadePositive and fadeNegative
float3 newCenterBlendLocalPosition = s_BlendBox.center;
float3 halfSize = s_BlendBox.size * 0.5f;
float3 size = volumeFalloff.size;
float3 posFade = newCenterBlendLocalPosition + halfSize;
posFade.x = 0.5f - posFade.x / size.x;
posFade.y = 0.5f - posFade.y / size.y;
posFade.z = 0.5f - posFade.z / size.z;
float3 negFade = newCenterBlendLocalPosition - halfSize;
negFade.x = 0.5f + negFade.x / size.x;
negFade.y = 0.5f + negFade.y / size.y;
negFade.z = 0.5f + negFade.z / size.z;
volumeFalloff.fadePositive = posFade;
volumeFalloff.fadeNegative = negFade;
}
}
break;
case VolumeFalloffEditMode.Bounds:
//important: if the origin of the handle's space move along the handle,
//handles displacement will appears as moving two time faster.
using (new Handles.DrawingScope(m))
{
//contained must be initialized in all case
s_ShapeBox.center = float3.zero;
s_ShapeBox.size = volumeFalloff.size;
float3 previousSize = volumeFalloff.size;
float3 previousPositiveFade = volumeFalloff.fadePositive;
float3 previousNegativeFade = volumeFalloff.fadeNegative;
EditorGUI.BeginChangeCheck();
s_ShapeBox.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObjects(new Object[] { volumeFalloff, volumeFalloff.transform }, "Change Volume Falloff Bounds");
float3 newSize = s_ShapeBox.size;
volumeFalloff.size = newSize;
float3 newPositiveFade = new float3(
newSize.x < 0.00001 ? 0.0f : previousPositiveFade.x * previousSize.x / newSize.x,
newSize.y < 0.00001 ? 0.0f : previousPositiveFade.y * previousSize.y / newSize.y,
newSize.z < 0.00001 ? 0.0f : previousPositiveFade.z * previousSize.z / newSize.z
);
float3 newNegativeFade = new float3(
newSize.x < 0.00001 ? 0.0f : previousNegativeFade.x * previousSize.x / newSize.x,
newSize.y < 0.00001 ? 0.0f : previousNegativeFade.y * previousSize.y / newSize.y,
newSize.z < 0.00001 ? 0.0f : previousNegativeFade.z * previousSize.z / newSize.z
);
for (int axeIndex = 0; axeIndex < 3; ++axeIndex)
{
if (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] > 1)
{
float overValue = (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] - 1f) * 0.5f;
newPositiveFade[axeIndex] -= overValue;
newNegativeFade[axeIndex] -= overValue;
if (newPositiveFade[axeIndex] < 0)
{
newNegativeFade[axeIndex] += newPositiveFade[axeIndex];
newPositiveFade[axeIndex] = 0f;
}
if (newNegativeFade[axeIndex] < 0)
{
newPositiveFade[axeIndex] += newNegativeFade[axeIndex];
newNegativeFade[axeIndex] = 0f;
}
}
}
volumeFalloff.fadePositive = newPositiveFade;
volumeFalloff.fadeNegative = newNegativeFade;
volumeFalloff.center += (float3)s_ShapeBox.center;
}
}
break;
default: Debug.Assert(false, "VolumeFalloffEditor: Encountered unsupported edit mode."); break;
}
}
