THREE.ShaderChunk[ 'cube_frag' ] = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n #include <clipping_planes_fragment>\n gl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n gl_FragColor.a *= opacity;\n #include <logdepthbuf_fragment>\n}\n";

THREE.ShaderChunk[ 'cube_vert' ] = "varying vec3 vWorldPosition;\n#include <common>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n vWorldPosition = transformDirection( position, modelMatrix );\n #include <begin_vertex>\n #include <project_vertex>\n #include <logdepthbuf_vertex>\n #include <clipping_planes_vertex>\n}\n";

THREE.ShaderChunk[ 'equirect_frag' ] = "uniform sampler2D tEquirect;\nuniform float tFlip;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n #include <clipping_planes_fragment>\n vec3 direction = normalize( vWorldPosition );\n vec2 sampleUV;\n sampleUV.y = saturate( tFlip * direction.y * -0.5 + 0.5 );\n sampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n gl_FragColor = texture2D( tEquirect, sampleUV );\n #include <logdepthbuf_fragment>\n}\n";

THREE.ShaderChunk[ 'equirect_vert' ] = "varying vec3 vWorldPosition;\n#include <common>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n vWorldPosition = transformDirection( position, modelMatrix );\n #include <begin_vertex>\n #include <project_vertex>\n #include <logdepthbuf_vertex>\n #include <clipping_planes_vertex>\n}\n";