forked from donmccurdy/postprocessing
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCopyPass.js
More file actions
177 lines (121 loc) · 3.55 KB
/
CopyPass.js
File metadata and controls
177 lines (121 loc) · 3.55 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
import { LinearFilter, sRGBEncoding, UnsignedByteType, WebGLRenderTarget } from "three";
import { CopyMaterial } from "../materials";
import { Pass } from "./Pass";
/**
* A pass that copies the contents of an input buffer to another render target.
*/
export class CopyPass extends Pass {
/**
* Constructs a new save pass.
*
* @param {WebGLRenderTarget} [renderTarget] - A render target.
* @param {Boolean} [autoResize=true] - Whether the render target size should be updated automatically.
*/
constructor(renderTarget, autoResize = true) {
super("CopyPass");
this.fullscreenMaterial = new CopyMaterial();
this.needsSwap = false;
/**
* The render target.
*
* @type {WebGLRenderTarget}
* @private
*/
this.renderTarget = renderTarget;
if(renderTarget === undefined) {
this.renderTarget = new WebGLRenderTarget(1, 1, {
minFilter: LinearFilter,
magFilter: LinearFilter,
stencilBuffer: false,
depthBuffer: false
});
this.renderTarget.texture.name = "CopyPass.Target";
}
/**
* Enables or disables auto resizing of the render target.
*
* @type {Boolean}
*/
this.autoResize = autoResize;
}
/**
* Enables or disables auto resizing of the render target.
*
* @deprecated Use autoResize instead.
* @type {Boolean}
*/
get resize() {
return this.autoResize;
}
set resize(value) {
this.autoResize = value;
}
/**
* The output texture.
*
* @type {Texture}
*/
get texture() {
return this.renderTarget.texture;
}
/**
* Returns the output texture.
*
* @deprecated Use texture instead.
* @return {Texture} The texture.
*/
getTexture() {
return this.renderTarget.texture;
}
/**
* Enables or disables auto resizing of the render target.
*
* @deprecated Use autoResize instead.
* @param {Boolean} value - Whether the render target size should be updated automatically.
*/
setAutoResizeEnabled(value) {
this.autoResize = value;
}
/**
* Saves the input buffer.
*
* @param {WebGLRenderer} renderer - The renderer.
* @param {WebGLRenderTarget} inputBuffer - A frame buffer that contains the result of the previous pass.
* @param {WebGLRenderTarget} outputBuffer - A frame buffer that serves as the output render target unless this pass renders to screen.
* @param {Number} [deltaTime] - The time between the last frame and the current one in seconds.
* @param {Boolean} [stencilTest] - Indicates whether a stencil mask is active.
*/
render(renderer, inputBuffer, outputBuffer, deltaTime, stencilTest) {
this.fullscreenMaterial.inputBuffer = inputBuffer.texture;
renderer.setRenderTarget(this.renderToScreen ? null : this.renderTarget);
renderer.render(this.scene, this.camera);
}
/**
* Updates the size of this pass.
*
* @param {Number} width - The width.
* @param {Number} height - The height.
*/
setSize(width, height) {
if(this.autoResize) {
this.renderTarget.setSize(width, height);
}
}
/**
* Performs initialization tasks.
*
* @param {WebGLRenderer} renderer - A renderer.
* @param {Boolean} alpha - Whether the renderer uses the alpha channel.
* @param {Number} frameBufferType - The type of the main frame buffers.
*/
initialize(renderer, alpha, frameBufferType) {
if(frameBufferType !== undefined) {
this.renderTarget.texture.type = frameBufferType;
if(frameBufferType !== UnsignedByteType) {
this.fullscreenMaterial.defines.FRAMEBUFFER_PRECISION_HIGH = "1";
} else if(renderer.outputEncoding === sRGBEncoding) {
this.renderTarget.texture.encoding = sRGBEncoding;
}
}
}
}