@@ -174,13 +174,13 @@ class WebGLTextureUtils {
174174
175175 }
176176
177- let ext_texture_norm16 ;
177+ let extTextureNorm16 = null ;
178178
179179 if ( normalized ) {
180180
181- ext_texture_norm16 = extensions . get ( 'EXT_texture_norm16' ) ;
181+ extTextureNorm16 = extensions . get ( 'EXT_texture_norm16' ) ;
182182
183- if ( ! ext_texture_norm16 ) {
183+ if ( ! extTextureNorm16 ) {
184184
185185 warn ( 'WebGLRenderer: Unable to use normalized textures without EXT_texture_norm16 extension' ) ;
186186
@@ -196,8 +196,8 @@ class WebGLTextureUtils {
196196 if ( glType === gl . HALF_FLOAT ) internalFormat = gl . R16F ;
197197 if ( glType === gl . UNSIGNED_BYTE ) internalFormat = gl . R8 ;
198198 if ( glType === gl . BYTE ) internalFormat = gl . R8_SNORM ;
199- if ( glType === gl . UNSIGNED_SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . R16_EXT ;
200- if ( glType === gl . SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . R16_SNORM_EXT ;
199+ if ( glType === gl . UNSIGNED_SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . R16_EXT ;
200+ if ( glType === gl . SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . R16_SNORM_EXT ;
201201
202202 }
203203
@@ -218,8 +218,8 @@ class WebGLTextureUtils {
218218 if ( glType === gl . HALF_FLOAT ) internalFormat = gl . RG16F ;
219219 if ( glType === gl . UNSIGNED_BYTE ) internalFormat = gl . RG8 ;
220220 if ( glType === gl . BYTE ) internalFormat = gl . RG8_SNORM ;
221- if ( glType === gl . UNSIGNED_SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RG16_EXT ;
222- if ( glType === gl . SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RG16_SNORM_EXT ;
221+ if ( glType === gl . UNSIGNED_SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RG16_EXT ;
222+ if ( glType === gl . SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RG16_SNORM_EXT ;
223223
224224 }
225225
@@ -242,8 +242,8 @@ class WebGLTextureUtils {
242242 if ( glType === gl . HALF_FLOAT ) internalFormat = gl . RGB16F ;
243243 if ( glType === gl . UNSIGNED_BYTE ) internalFormat = ( transfer === SRGBTransfer ) ? gl . SRGB8 : gl . RGB8 ;
244244 if ( glType === gl . BYTE ) internalFormat = gl . RGB8_SNORM ;
245- if ( glType === gl . UNSIGNED_SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RGB16_EXT ;
246- if ( glType === gl . SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RGB16_SNORM_EXT ;
245+ if ( glType === gl . UNSIGNED_SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RGB16_EXT ;
246+ if ( glType === gl . SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RGB16_SNORM_EXT ;
247247 if ( glType === gl . UNSIGNED_SHORT_5_6_5 ) internalFormat = gl . RGB565 ;
248248 if ( glType === gl . UNSIGNED_SHORT_5_5_5_1 ) internalFormat = gl . RGB5_A1 ;
249249 if ( glType === gl . UNSIGNED_SHORT_4_4_4_4 ) internalFormat = gl . RGB4 ;
@@ -271,8 +271,8 @@ class WebGLTextureUtils {
271271 if ( glType === gl . HALF_FLOAT ) internalFormat = gl . RGBA16F ;
272272 if ( glType === gl . UNSIGNED_BYTE ) internalFormat = ( transfer === SRGBTransfer ) ? gl . SRGB8_ALPHA8 : gl . RGBA8 ;
273273 if ( glType === gl . BYTE ) internalFormat = gl . RGBA8_SNORM ;
274- if ( glType === gl . UNSIGNED_SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RGBA16_EXT ;
275- if ( glType === gl . SHORT && ext_texture_norm16 ) internalFormat = ext_texture_norm16 . RGBA16_SNORM_EXT ;
274+ if ( glType === gl . UNSIGNED_SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RGBA16_EXT ;
275+ if ( glType === gl . SHORT && extTextureNorm16 ) internalFormat = extTextureNorm16 . RGBA16_SNORM_EXT ;
276276 if ( glType === gl . UNSIGNED_SHORT_4_4_4_4 ) internalFormat = gl . RGBA4 ;
277277 if ( glType === gl . UNSIGNED_SHORT_5_5_5_1 ) internalFormat = gl . RGB5_A1 ;
278278
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