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.
34 lines
677 B
34 lines
677 B
6 months ago
|
import { GPU_CHUNK_BYTES } from './Constants.js';
|
||
|
|
||
|
function getFloatLength( floatLength ) {
|
||
|
|
||
|
// ensure chunk size alignment (STD140 layout)
|
||
|
|
||
|
return floatLength + ( ( GPU_CHUNK_BYTES - ( floatLength % GPU_CHUNK_BYTES ) ) % GPU_CHUNK_BYTES );
|
||
|
|
||
|
}
|
||
|
|
||
|
function getVectorLength( count, vectorLength = 4 ) {
|
||
|
|
||
|
const strideLength = getStrideLength( vectorLength );
|
||
|
|
||
|
const floatLength = strideLength * count;
|
||
|
|
||
|
return getFloatLength( floatLength );
|
||
|
|
||
|
}
|
||
|
|
||
|
function getStrideLength( vectorLength ) {
|
||
|
|
||
|
const strideLength = 4;
|
||
|
|
||
|
return vectorLength + ( ( strideLength - ( vectorLength % strideLength ) ) % strideLength );
|
||
|
|
||
|
}
|
||
|
|
||
|
export {
|
||
|
getFloatLength,
|
||
|
getVectorLength,
|
||
|
getStrideLength
|
||
|
};
|