GL_EXT_texture_array http://developer.download.nvidia.com/opengl/specs/GL_EXT_texture_array.txt GL_EXT_texture_array GL_TEXTURE_1D_ARRAY_EXT 0x8C18 GL_PROXY_TEXTURE_1D_ARRAY_EXT 0x8C19 GL_TEXTURE_2D_ARRAY_EXT 0x8C1A GL_PROXY_TEXTURE_2D_ARRAY_EXT 0x8C1B GL_TEXTURE_BINDING_1D_ARRAY_EXT 0x8C1C GL_TEXTURE_BINDING_2D_ARRAY_EXT 0x8C1D GL_MAX_ARRAY_TEXTURE_LAYERS_EXT 0x88FF GL_COMPARE_REF_DEPTH_TO_TEXTURE_EXT 0x884E void glFramebufferTextureLayerEXT (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer)