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0de2da92
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three.js
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体验新版 GitCode,发现更多精彩内容 >>
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0de2da92
编写于
2月 21, 2017
作者:
M
Mr.doob
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Projector: Clip BufferGeometry-based Lines. Fixes #10853.
上级
ebba86ad
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
50 addition
and
38 deletion
+50
-38
examples/js/renderers/Projector.js
examples/js/renderers/Projector.js
+50
-38
未找到文件。
examples/js/renderers/Projector.js
浏览文件 @
0de2da92
...
...
@@ -99,33 +99,32 @@ THREE.RenderableSprite = function () {
THREE
.
Projector
=
function
()
{
var
_object
,
_objectCount
,
_objectPool
=
[],
_objectPoolLength
=
0
,
_vertex
,
_vertexCount
,
_vertexPool
=
[],
_vertexPoolLength
=
0
,
_face
,
_faceCount
,
_facePool
=
[],
_facePoolLength
=
0
,
_line
,
_lineCount
,
_linePool
=
[],
_linePoolLength
=
0
,
_sprite
,
_spriteCount
,
_spritePool
=
[],
_spritePoolLength
=
0
,
_vertex
,
_vertexCount
,
_vertexPool
=
[],
_vertexPoolLength
=
0
,
_face
,
_faceCount
,
_facePool
=
[],
_facePoolLength
=
0
,
_line
,
_lineCount
,
_linePool
=
[],
_linePoolLength
=
0
,
_sprite
,
_spriteCount
,
_spritePool
=
[],
_spritePoolLength
=
0
,
_renderData
=
{
objects
:
[],
lights
:
[],
elements
:
[]
},
_renderData
=
{
objects
:
[],
lights
:
[],
elements
:
[]
},
_vector3
=
new
THREE
.
Vector3
(),
_vector4
=
new
THREE
.
Vector4
(),
_vector3
=
new
THREE
.
Vector3
(),
_vector4
=
new
THREE
.
Vector4
(),
_clipBox
=
new
THREE
.
Box3
(
new
THREE
.
Vector3
(
-
1
,
-
1
,
-
1
),
new
THREE
.
Vector3
(
1
,
1
,
1
)
),
_boundingBox
=
new
THREE
.
Box3
(),
_points3
=
new
Array
(
3
),
_points4
=
new
Array
(
4
),
_clipBox
=
new
THREE
.
Box3
(
new
THREE
.
Vector3
(
-
1
,
-
1
,
-
1
),
new
THREE
.
Vector3
(
1
,
1
,
1
)
),
_boundingBox
=
new
THREE
.
Box3
(),
_points3
=
new
Array
(
3
),
_viewMatrix
=
new
THREE
.
Matrix4
(),
_viewProjectionMatrix
=
new
THREE
.
Matrix4
(),
_viewMatrix
=
new
THREE
.
Matrix4
(),
_viewProjectionMatrix
=
new
THREE
.
Matrix4
(),
_modelMatrix
,
_modelViewProjectionMatrix
=
new
THREE
.
Matrix4
(),
_modelMatrix
,
_modelViewProjectionMatrix
=
new
THREE
.
Matrix4
(),
_normalMatrix
=
new
THREE
.
Matrix3
(),
_normalMatrix
=
new
THREE
.
Matrix3
(),
_frustum
=
new
THREE
.
Frustum
(),
_frustum
=
new
THREE
.
Frustum
(),
_clippedVertex1PositionScreen
=
new
THREE
.
Vector4
(),
_clippedVertex2PositionScreen
=
new
THREE
.
Vector4
();
_clippedVertex1PositionScreen
=
new
THREE
.
Vector4
(),
_clippedVertex2PositionScreen
=
new
THREE
.
Vector4
();
//
...
...
@@ -143,7 +142,7 @@ THREE.Projector = function () {
};
this
.
pickingRay
=
function
(
vector
,
camera
)
{
this
.
pickingRay
=
function
()
{
console
.
error
(
'
THREE.Projector: .pickingRay() is now raycaster.setFromCamera().
'
);
...
...
@@ -236,22 +235,34 @@ THREE.Projector = function () {
}
function
pushLine
(
a
,
b
)
{
function
pushLine
(
a
,
b
,
_modelViewProjectionMatrix
)
{
var
v1
=
_vertexPool
[
a
];
var
v2
=
_vertexPool
[
b
];
_line
=
getNextLineInPool
();
// Clip
_line
.
id
=
object
.
id
;
_line
.
v1
.
copy
(
v1
);
_line
.
v2
.
copy
(
v2
);
_line
.
z
=
(
v1
.
positionScreen
.
z
+
v2
.
positionScreen
.
z
)
/
2
;
_line
.
renderOrder
=
object
.
renderOrder
;
v1
.
positionScreen
.
copy
(
v1
.
position
).
applyMatrix4
(
_modelViewProjectionMatrix
);
v2
.
positionScreen
.
copy
(
v2
.
position
).
applyMatrix4
(
_modelViewProjectionMatrix
);
_line
.
material
=
object
.
material
;
if
(
clipLine
(
v1
.
positionScreen
,
v2
.
positionScreen
)
===
true
)
{
_renderData
.
elements
.
push
(
_line
);
// Perform the perspective divide
v1
.
positionScreen
.
multiplyScalar
(
1
/
v1
.
positionScreen
.
w
);
v2
.
positionScreen
.
multiplyScalar
(
1
/
v2
.
positionScreen
.
w
);
_line
=
getNextLineInPool
();
_line
.
id
=
object
.
id
;
_line
.
v1
.
copy
(
v1
);
_line
.
v2
.
copy
(
v2
);
_line
.
z
=
Math
.
max
(
v1
.
positionScreen
.
z
,
v2
.
positionScreen
.
z
);
_line
.
renderOrder
=
object
.
renderOrder
;
_line
.
material
=
object
.
material
;
_renderData
.
elements
.
push
(
_line
);
}
}
...
...
@@ -310,7 +321,7 @@ THREE.Projector = function () {
pushUv
:
pushUv
,
pushLine
:
pushLine
,
pushTriangle
:
pushTriangle
}
}
;
};
...
...
@@ -609,6 +620,8 @@ THREE.Projector = function () {
}
else
if
(
object
instanceof
THREE
.
Line
)
{
_modelViewProjectionMatrix
.
multiplyMatrices
(
_viewProjectionMatrix
,
_modelMatrix
);
if
(
geometry
instanceof
THREE
.
BufferGeometry
)
{
var
attributes
=
geometry
.
attributes
;
...
...
@@ -629,7 +642,7 @@ THREE.Projector = function () {
for
(
var
i
=
0
,
l
=
indices
.
length
;
i
<
l
;
i
+=
2
)
{
renderList
.
pushLine
(
indices
[
i
],
indices
[
i
+
1
]
);
renderList
.
pushLine
(
indices
[
i
],
indices
[
i
+
1
]
,
_modelViewProjectionMatrix
);
}
...
...
@@ -639,7 +652,7 @@ THREE.Projector = function () {
for
(
var
i
=
0
,
l
=
(
positions
.
length
/
3
)
-
1
;
i
<
l
;
i
+=
step
)
{
renderList
.
pushLine
(
i
,
i
+
1
);
renderList
.
pushLine
(
i
,
i
+
1
,
_modelViewProjectionMatrix
);
}
...
...
@@ -649,8 +662,6 @@ THREE.Projector = function () {
}
else
if
(
geometry
instanceof
THREE
.
Geometry
)
{
_modelViewProjectionMatrix
.
multiplyMatrices
(
_viewProjectionMatrix
,
_modelMatrix
);
var
vertices
=
object
.
geometry
.
vertices
;
if
(
vertices
.
length
===
0
)
continue
;
...
...
@@ -861,10 +872,11 @@ THREE.Projector = function () {
// Calculate the boundary coordinate of each vertex for the near and far clip planes,
// Z = -1 and Z = +1, respectively.
bc1near
=
s1
.
z
+
s1
.
w
,
bc2near
=
s2
.
z
+
s2
.
w
,
bc1far
=
-
s1
.
z
+
s1
.
w
,
bc2far
=
-
s2
.
z
+
s2
.
w
;
bc1near
=
s1
.
z
+
s1
.
w
,
bc2near
=
s2
.
z
+
s2
.
w
,
bc1far
=
-
s1
.
z
+
s1
.
w
,
bc2far
=
-
s2
.
z
+
s2
.
w
;
if
(
bc1near
>=
0
&&
bc2near
>=
0
&&
bc1far
>=
0
&&
bc2far
>=
0
)
{
...
...
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