15-462 Lecture 13: Texture Mapping

03/14/2002

15-462 Graphics I

glTexImage2D

•glTexImage2D(GL_TEXTURE_2D, level, components, width, height, border, format, type, tarray)

•GL_TEXTURE_2D

–Specify that it is a 2D texture

•Level

–Used for specifying levels of detail for mipmapping (more on this later)

•Components

–Generally is 0 which means GL_RGB

–Represents components and resolution of components

•Width, Height

–The size of the texture must be powers of 2

•Border

•Format, Type

–Specify what the data is (GL_RGB, GL_RGBA, …)

–Specify data type (GL_UNSIGNED_BYTE, GL_BYTE, …)