79 lines
1.9 KiB
JavaScript
79 lines
1.9 KiB
JavaScript
|
import Node, { addNodeClass } from '../core/Node.js';
|
||
|
|
import { normalLocal } from './NormalNode.js';
|
||
|
|
import { positionLocal } from './PositionNode.js';
|
||
|
|
import { nodeProxy, vec3, mat3, mat4, int, ivec2, float } from '../shadernode/ShaderNode.js';
|
||
|
|
import { textureLoad } from './TextureNode.js';
|
||
|
|
import { textureSize } from './TextureSizeNode.js';
|
||
|
|
import { attribute } from '../core/AttributeNode.js';
|
||
|
|
import { tangentLocal } from './TangentNode.js';
|
||
|
|
|
||
|
|
class BatchNode extends Node {
|
||
|
|
|
||
|
|
constructor( batchMesh ) {
|
||
|
|
|
||
|
|
super( 'void' );
|
||
|
|
|
||
|
|
this.batchMesh = batchMesh;
|
||
|
|
|
||
|
|
|
||
|
|
this.instanceColorNode = null;
|
||
|
|
|
||
|
|
this.batchingIdNode = null;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
setup( builder ) {
|
||
|
|
|
||
|
|
// POSITION
|
||
|
|
|
||
|
|
if ( this.batchingIdNode === null ) {
|
||
|
|
|
||
|
|
this.batchingIdNode = attribute( 'batchId' );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
const matriceTexture = this.batchMesh._matricesTexture;
|
||
|
|
|
||
|
|
const size = textureSize( textureLoad( matriceTexture ), 0 );
|
||
|
|
const j = float( int( this.batchingIdNode ) ).mul( 4 ).toVar();
|
||
|
|
|
||
|
|
const x = int( j.mod( size ) );
|
||
|
|
const y = int( j ).div( int( size ) );
|
||
|
|
const batchingMatrix = mat4(
|
||
|
|
textureLoad( matriceTexture, ivec2( x, y ) ),
|
||
|
|
textureLoad( matriceTexture, ivec2( x.add( 1 ), y ) ),
|
||
|
|
textureLoad( matriceTexture, ivec2( x.add( 2 ), y ) ),
|
||
|
|
textureLoad( matriceTexture, ivec2( x.add( 3 ), y ) )
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
const bm = mat3(
|
||
|
|
batchingMatrix[ 0 ].xyz,
|
||
|
|
batchingMatrix[ 1 ].xyz,
|
||
|
|
batchingMatrix[ 2 ].xyz
|
||
|
|
);
|
||
|
|
|
||
|
|
positionLocal.assign( batchingMatrix.mul( positionLocal ) );
|
||
|
|
|
||
|
|
const transformedNormal = normalLocal.div( vec3( bm[ 0 ].dot( bm[ 0 ] ), bm[ 1 ].dot( bm[ 1 ] ), bm[ 2 ].dot( bm[ 2 ] ) ) );
|
||
|
|
|
||
|
|
const batchingNormal = bm.mul( transformedNormal ).xyz;
|
||
|
|
|
||
|
|
normalLocal.assign( batchingNormal );
|
||
|
|
|
||
|
|
if ( builder.hasGeometryAttribute( 'tangent' ) ) {
|
||
|
|
|
||
|
|
tangentLocal.mulAssign( bm );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
export default BatchNode;
|
||
|
|
|
||
|
|
export const batch = nodeProxy( BatchNode );
|
||
|
|
|
||
|
|
addNodeClass( 'batch', BatchNode );
|