这是我无意间逛国外论坛发现的，感觉还可以就分享给大家。原文 http://pastebin.com/dJabCfWn
如下图所示，用法和UGUI自带的outline和shadow一样，可以同时使用。
代码在这里了。我加了个判断，它原来的有越界的隐患。
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using
UnityEngine
;
using
System
.
Collections
;
using
System
.
Collections
.
Generic
;
using
UnityEngine
.
UI
;
[
AddComponentMenu
(
"UI/Effects/Gradient"
)
]
public
class
Gradient
:
BaseVertexEffect
{
[
SerializeField
]
private
Color32
topColor
=
Color
.
white
;
[
SerializeField
]
private
Color32
bottomColor
=
Color
.
black
;
public
override
void
ModifyVertices
(
List
<
UIVertex
>
vertexList
)
{
if
(
!
IsActive
(
)
)
{
return
;
}
int
count
=
vertexList
.
Count
;
if
(
count
>
0
)
{
float
bottomY
=
vertexList
[
0
]
.
position
.
y
;
float
topY
=
vertexList
[
0
]
.
position
.
y
;
for
(
int
i
=
1
;
i
<
count
;
i
++
)
{
float
y
=
vertexList
[
i
]
.
position
.
y
;
if
(
y
>
topY
)
{
topY
=
y
;
}
else
if
(
y
<
bottomY
)
{
bottomY
=
y
;
}
}
float
uiElementHeight
=
topY
-
bottomY
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
UIVertex
uiVertex
=
vertexList
[
i
]
;
uiVertex
.
color
=
Color32
.
Lerp
(
bottomColor
,
topColor
,
(
uiVertex
.
position
.
y
-
bottomY
)
/
uiElementHeight
)
;
vertexList
[
i
]
=
uiVertex
;
}
}
}
}
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我也在测试中，欢迎大家提意见。
如果你的项目升级到了5.2 请使用下面的代码，感谢代码的提供者。@獨立遊戲開發熊
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|
using
UnityEngine
;
using
System
.
Collections
;
using
System
.
Collections
.
Generic
;
using
UnityEngine
.
UI
;
[
AddComponentMenu
(
"UI/Effects/Gradient"
)
]
public
class
Gradient
:
BaseMeshEffect
{
[
SerializeField
]
private
Color32
topColor
=
Color
.
white
;
[
SerializeField
]
private
Color32
bottomColor
=
Color
.
black
;
public
override
void
ModifyMesh
(
Mesh
mesh
)
{
if
(
!
IsActive
(
)
)
{
return
;
}
Vector3
[
]
vertexList
=
mesh
.
vertices
;
int
count
=
mesh
.
vertexCount
;
if
(
count
>
0
)
{
float
bottomY
=
vertexList
[
0
]
.
y
;
float
topY
=
vertexList
[
0
]
.
y
;
for
(
int
i
=
1
;
i
<
count
;
i
++
)
{
float
y
=
vertexList
[
i
]
.
y
;
if
(
y
>
topY
)
{
topY
=
y
;
}
else
if
(
y
<
bottomY
)
{
bottomY
=
y
;
}
}
List
<
Color32
>
colors
=
new
List
<
Color32
>
(
)
;
float
uiElementHeight
=
topY
-
bottomY
;
for
(
int
i
=
0
;
i
<
count
;
i
++
)
{
colors
.
Add
(
Color32
.
Lerp
(
bottomColor
,
topColor
,
(
vertexList
[
i
]
.
y
-
bottomY
)
/
uiElementHeight
)
)
;
}
mesh
.
SetColors
(
colors
)
;
}
}
}
|