94 lines
1.7 KiB
JavaScript
94 lines
1.7 KiB
JavaScript
import { GPUPrimitiveTopology, GPUTextureFormat } from './WebGPUConstants.js';
|
|
|
|
class WebGPUUtils {
|
|
|
|
constructor( backend ) {
|
|
|
|
this.backend = backend;
|
|
|
|
}
|
|
|
|
getCurrentDepthStencilFormat( renderContext ) {
|
|
|
|
let format;
|
|
|
|
if ( renderContext.depthTexture !== null ) {
|
|
|
|
format = this.getTextureFormatGPU( renderContext.depthTexture );
|
|
|
|
} else if ( renderContext.depth && renderContext.stencil ) {
|
|
|
|
format = GPUTextureFormat.Depth24PlusStencil8;
|
|
|
|
} else if ( renderContext.depth ) {
|
|
|
|
format = GPUTextureFormat.Depth24Plus;
|
|
|
|
}
|
|
|
|
return format;
|
|
|
|
}
|
|
|
|
getTextureFormatGPU( texture ) {
|
|
|
|
return this.backend.get( texture ).texture.format;
|
|
|
|
}
|
|
|
|
getCurrentColorFormat( renderContext ) {
|
|
|
|
let format;
|
|
|
|
if ( renderContext.textures !== null ) {
|
|
|
|
format = this.getTextureFormatGPU( renderContext.textures[ 0 ] );
|
|
|
|
|
|
} else {
|
|
|
|
format = GPUTextureFormat.BGRA8Unorm; // default context format
|
|
|
|
}
|
|
|
|
return format;
|
|
|
|
}
|
|
|
|
getCurrentColorSpace( renderContext ) {
|
|
|
|
if ( renderContext.textures !== null ) {
|
|
|
|
return renderContext.textures[ 0 ].colorSpace;
|
|
|
|
}
|
|
|
|
return this.backend.renderer.outputColorSpace;
|
|
|
|
}
|
|
|
|
getPrimitiveTopology( object, material ) {
|
|
|
|
if ( object.isPoints ) return GPUPrimitiveTopology.PointList;
|
|
else if ( object.isLineSegments || ( object.isMesh && material.wireframe === true ) ) return GPUPrimitiveTopology.LineList;
|
|
else if ( object.isLine ) return GPUPrimitiveTopology.LineStrip;
|
|
else if ( object.isMesh ) return GPUPrimitiveTopology.TriangleList;
|
|
|
|
}
|
|
|
|
getSampleCount( renderContext ) {
|
|
|
|
if ( renderContext.textures !== null ) {
|
|
|
|
return renderContext.sampleCount;
|
|
|
|
}
|
|
|
|
return this.backend.parameters.sampleCount;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
export default WebGPUUtils;
|