: srcTexture.image; _gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, image.width ); _gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, image.height ); _gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, minX ); _gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, minY ); if ( srcTexture.isDataTexture ) { _gl.texSubImage2D( _gl.TEXTURE_2D, level, dstX, dstY, width, height, glFormat, glType, image.data ); } else { if ( srcTexture.isCompressedTexture ) { _gl.compressedTexSubImage2D( _gl.TEXTURE_2D, level, dstX, dstY, image.width, image.height, glFormat, image.data ); } else { _gl.texSubImage2D( _gl.TEXTURE_2D, level, dstX, dstY, glFormat, glType, image ); } } _gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, currentUnpackRowLen ); _gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, currentUnpackImageHeight ); _gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, currentUnpackSkipPixels ); _gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, currentUnpackSkipRows ); _gl.pixelStorei( _gl.UNPACK_SKIP_IMAGES, currentUnpackSkipImages ); // Generate mipmaps only when copying level 0 if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( _gl.TEXTURE_2D ); state.unbindTexture(); }; this.copyTextureToTexture3D = function ( srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0 ) { // support previous signature with source box first if ( srcTexture.isTexture !== true ) { // @deprecated, r165 console.warn( 'WebGLRenderer: copyTextureToTexture3D function signature has changed.' ); srcRegion = arguments[ 0 ] || null; dstPosition = arguments[ 1 ] || null; srcTexture = arguments[ 2 ]; dstTexture = arguments[ 3 ]; level = arguments[ 4 ] || 0; } let width, height, depth, minX, minY, minZ; let dstX, dstY, dstZ; const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ level ] : srcTexture.image; if ( srcRegion !== null ) { width = srcRegion.max.x - srcRegion.min.x; height = srcRegion.max.y - srcRegion.min.y; depth = srcRegion.max.z - srcRegion.min.z; minX = srcRegion.min.x; minY = srcRegion.min.y; minZ = srcRegion.min.z; } else { width = image.width; height = image.height; depth = image.depth; minX = 0; minY = 0; minZ = 0; } if ( dstPosition !== null ) { dstX = dstPosition.x; dstY = dstPosition.y; dstZ = dstPosition.z; } else { dstX = 0; dstY = 0; dstZ = 0; } const glFormat = utils.convert( dstTexture.format ); const glType = utils.convert( dstTexture.type ); let glTarget; if ( dstTexture.isData3DTexture ) { textures.setTexture3D( dstTexture, 0 ); glTarget = _gl.TEXTURE_3D; } else if ( dstTexture.isDataArrayTexture || dstTexture.isCompressedArrayTexture ) { textures.setTexture2DArray( dstTexture, 0 ); glTarget = _gl.TEXTURE_2D_ARRAY; } else { console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.' ); return; } _gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY ); _gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha ); _gl.pixelStorei( _gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment ); const currentUnpackRowLen = _gl.getParameter( _gl.UNPACK_ROW_LENGTH ); const currentUnpackImageHeight = _gl.getParameter( _gl.UNPACK_IMAGE_HEIGHT ); const currentUnpackSkipPixels = _gl.getParameter( _gl.UNPACK_SKIP_PIXELS ); const currentUnpackSkipRows = _gl.getParameter( _gl.UNPACK_SKIP_ROWS ); const currentUnpackSkipImages = _gl.getParameter( _gl.UNPACK_SKIP_IMAGES ); _gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, image.width ); _gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, image.height ); _gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, minX ); _gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, minY ); _gl.pixelStorei( _gl.UNPACK_SKIP_IMAGES, minZ ); if ( srcTexture.isDataTexture || srcTexture.isData3DTexture ) { _gl.texSubImage3D( glTarget, level, dstX, dstY, dstZ, width, height, depth, glFormat, glType, image.data ); } else { if ( dstTexture.isCompressedArrayTexture ) { _gl.compressedTexSubImage3D( glTarget, level, dstX, dstY, dstZ, width, height, depth, glFormat, image.data ); } else { _gl.texSubImage3D( glTarget, level, dstX, dstY, dstZ, width, height, depth, glFormat, glType, image ); } } _gl.pixelStorei( _gl.UNPACK_ROW_LENGTH, currentUnpackRowLen ); _gl.pixelStorei( _gl.UNPACK_IMAGE_HEIGHT, currentUnpackImageHeight ); _gl.pixelStorei( _gl.UNPACK_SKIP_PIXELS, currentUnpackSkipPixels ); _gl.pixelStorei( _gl.UNPACK_SKIP_ROWS, currentUnpackSkipRows ); _gl.pixelStorei( _gl.UNPACK_SKIP_IMAGES, currentUnpackSkipImages ); // Generate mipmaps only when copying level 0 if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( glTarget ); state.unbindTexture(); }; this.initRe