Redstone1024/CatlikeCoding-Unity
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_Redstone_c_ 2021-02-01 11:25:34 +08:00
parent 7ee4755a6a
commit e987949600
2 changed files with 43 additions and 14 deletions
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22
Assets/Scenes/SampleScene.unity
View File

@ -156,8 +156,8 @@ MonoBehaviour:
material: {fileID: 2100000, guid: 8f3914ac4291e664ba60ae208ae66460, type: 2}
gradientA:
serializedVersion: 2
key0: {r: 1, g: 1, b: 1, a: 0.3137255}
key1: {r: 1, g: 0, b: 0, a: 0.3529412}
key0: {r: 0.764151, g: 0.18413278, b: 0, a: 0.3137255}
key1: {r: 1, g: 1, b: 0, a: 0.3529412}
key2: {r: 0, g: 0, b: 0, a: 0}
key3: {r: 0, g: 0, b: 0, a: 0}
key4: {r: 0, g: 0, b: 0, a: 0}
@ -165,7 +165,7 @@ MonoBehaviour:
key6: {r: 0, g: 0, b: 0, a: 0}
key7: {r: 0, g: 0, b: 0, a: 0}
ctime0: 0
ctime1: 32768
ctime1: 65535
ctime2: 65535
ctime3: 0
ctime4: 0
@ -181,12 +181,12 @@ MonoBehaviour:
atime6: 0
atime7: 0
m_Mode: 0
m_NumColorKeys: 3
m_NumColorKeys: 2
m_NumAlphaKeys: 2
gradientB:
serializedVersion: 2
key0: {r: 0, g: 0, b: 1, a: 0.54901963}
key1: {r: 1, g: 1, b: 1, a: 0.627451}
key0: {r: 0.40392157, g: 0.14109339, b: 0, a: 0.54901963}
key1: {r: 0, g: 0.6320754, b: 0, a: 0.627451}
key2: {r: 1, g: 1, b: 0, a: 0}
key3: {r: 0, g: 0, b: 0, a: 0}
key4: {r: 0, g: 0, b: 0, a: 0}
@ -194,7 +194,7 @@ MonoBehaviour:
key6: {r: 0, g: 0, b: 0, a: 0}
key7: {r: 0, g: 0, b: 0, a: 0}
ctime0: 0
ctime1: 32768
ctime1: 65535
ctime2: 65535
ctime3: 0
ctime4: 0
@ -210,10 +210,12 @@ MonoBehaviour:
atime6: 0
atime7: 0
m_Mode: 0
m_NumColorKeys: 3
m_NumColorKeys: 2
m_NumAlphaKeys: 2
leafColorA: {r: 0.45882356, g: 0.97647065, b: 0.29803923, a: 0.49803922}
leafColorB: {r: 0.21568629, g: 0.4901961, b: 0.13333334, a: 0.9019608}
maxSagAngleA: 15
maxSagAngleB: 25
--- !u!4 &197491476
Transform:
m_ObjectHideFlags: 0
@ -221,13 +223,13 @@ Transform:
m_PrefabInstance: {fileID: 0}
m_PrefabAsset: {fileID: 0}
m_GameObject: {fileID: 197491472}
m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
m_LocalRotation: {x: 0, y: 0, z: 0.17364816, w: 0.9848078}
m_LocalPosition: {x: 0, y: 0, z: 0}
m_LocalScale: {x: 1, y: 1, z: 1}
m_Children: []
m_Father: {fileID: 0}
m_RootOrder: 4
m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
m_LocalEulerAnglesHint: {x: 0, y: 0, z: 20}
--- !u!1 &705507993
GameObject:
m_ObjectHideFlags: 0

35
Assets/Script/Fractal.cs
View File

@ -29,12 +29,32 @@ public class Fractal : MonoBehaviour
var parent = parents[i / 5];
var part = parts[i];
part.spinAngle += spinAngleDelta;
part.worldRotation = mul(parent.worldRotation,
float3 upAxis =
mul(mul(parent.worldRotation, part.rotation), up());
float3 sagAxis = cross(up(), upAxis);
float sagMagnitude = length(sagAxis);
quaternion baseRotation;
if (sagMagnitude > 0f)
{
sagAxis /= sagMagnitude;
quaternion sagRotation =
quaternion.AxisAngle(sagAxis, part.maxSagAngle * sagMagnitude);
baseRotation = mul(sagRotation, parent.worldRotation);
}
else
{
baseRotation = parent.worldRotation;
}
part.worldRotation = mul(baseRotation,
mul(part.rotation, quaternion.RotateY(part.spinAngle))
);
part.worldPosition =
parent.worldPosition +
mul(parent.worldRotation, 1.5f * scale * part.direction);
mul(part.worldRotation, float3(0f, 1.5f * scale, 0f));
parts[i] = part;
float3x3 r = float3x3(part.worldRotation) * scale;
@ -44,8 +64,9 @@ public class Fractal : MonoBehaviour
private struct FractalPart
{
public float3 direction, worldPosition;
public float3 worldPosition;
public quaternion rotation, worldRotation;
public float maxSagAngle;
public float spinAngle;
}
@ -77,6 +98,12 @@ public class Fractal : MonoBehaviour
[SerializeField]
Color leafColorB = default;
[SerializeField, Range(0f, 90f)]
float maxSagAngleA = 15f;
[SerializeField, Range(0f, 90f)]
float maxSagAngleB = 25f;
static float3[] directions =
{
up(), right(), left(), forward(), back()
@ -93,7 +120,7 @@ public class Fractal : MonoBehaviour
{
return new FractalPart()
{
direction = directions[childIndex],
maxSagAngle = radians(Random.Range(maxSagAngleA, maxSagAngleB)),
rotation = rotations[childIndex]
};
}