You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.2 KiB
105 lines
2.2 KiB
import {
|
|
HalfFloatType,
|
|
MeshBasicMaterial,
|
|
NearestFilter,
|
|
ShaderMaterial,
|
|
UniformsUtils,
|
|
WebGLRenderTarget
|
|
} from 'three';
|
|
import { Pass, FullScreenQuad } from './Pass.js';
|
|
import { AfterimageShader } from '../shaders/AfterimageShader.js';
|
|
|
|
class AfterimagePass extends Pass {
|
|
|
|
constructor( damp = 0.96 ) {
|
|
|
|
super();
|
|
|
|
this.shader = AfterimageShader;
|
|
|
|
this.uniforms = UniformsUtils.clone( this.shader.uniforms );
|
|
|
|
this.uniforms[ 'damp' ].value = damp;
|
|
|
|
this.textureComp = new WebGLRenderTarget( window.innerWidth, window.innerHeight, {
|
|
magFilter: NearestFilter,
|
|
type: HalfFloatType
|
|
} );
|
|
|
|
this.textureOld = new WebGLRenderTarget( window.innerWidth, window.innerHeight, {
|
|
magFilter: NearestFilter,
|
|
type: HalfFloatType
|
|
} );
|
|
|
|
this.compFsMaterial = new ShaderMaterial( {
|
|
|
|
uniforms: this.uniforms,
|
|
vertexShader: this.shader.vertexShader,
|
|
fragmentShader: this.shader.fragmentShader
|
|
|
|
} );
|
|
|
|
this.compFsQuad = new FullScreenQuad( this.compFsMaterial );
|
|
|
|
this.copyFsMaterial = new MeshBasicMaterial();
|
|
this.copyFsQuad = new FullScreenQuad( this.copyFsMaterial );
|
|
|
|
}
|
|
|
|
render( renderer, writeBuffer, readBuffer/*, deltaTime, maskActive*/ ) {
|
|
|
|
this.uniforms[ 'tOld' ].value = this.textureOld.texture;
|
|
this.uniforms[ 'tNew' ].value = readBuffer.texture;
|
|
|
|
renderer.setRenderTarget( this.textureComp );
|
|
this.compFsQuad.render( renderer );
|
|
|
|
this.copyFsQuad.material.map = this.textureComp.texture;
|
|
|
|
if ( this.renderToScreen ) {
|
|
|
|
renderer.setRenderTarget( null );
|
|
this.copyFsQuad.render( renderer );
|
|
|
|
} else {
|
|
|
|
renderer.setRenderTarget( writeBuffer );
|
|
|
|
if ( this.clear ) renderer.clear();
|
|
|
|
this.copyFsQuad.render( renderer );
|
|
|
|
}
|
|
|
|
// Swap buffers.
|
|
const temp = this.textureOld;
|
|
this.textureOld = this.textureComp;
|
|
this.textureComp = temp;
|
|
// Now textureOld contains the latest image, ready for the next frame.
|
|
|
|
}
|
|
|
|
setSize( width, height ) {
|
|
|
|
this.textureComp.setSize( width, height );
|
|
this.textureOld.setSize( width, height );
|
|
|
|
}
|
|
|
|
dispose() {
|
|
|
|
this.textureComp.dispose();
|
|
this.textureOld.dispose();
|
|
|
|
this.compFsMaterial.dispose();
|
|
this.copyFsMaterial.dispose();
|
|
|
|
this.compFsQuad.dispose();
|
|
this.copyFsQuad.dispose();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
export { AfterimagePass };
|