MetaTextureCallback

Description:

public delegate void MetaTextureCallback (Texture sub_texture, float sub_texture_coords, float meta_coords)

A callback used with cogl_meta_texture_foreach_in_region to retrieve details of all the low-level Textures that make up a given MetaTexture.

Parameters:

sub_texture	A low-level Texture making up part of a MetaTexture.
sub_texture_coords	A float 4-tuple ordered like (tx1,ty1,tx2,ty2) defining what region of the current `sub_texture` maps to a sub-region of a MetaTexture. (tx1,ty1) is the top-left sub-region coordinate and (tx2,ty2) is the bottom-right. These are low-level texture coordinates.
meta_coords	A float 4-tuple ordered like (tx1,ty1,tx2,ty2) defining what sub-region of a MetaTexture this low-level `sub_texture` maps too. (tx1,ty1) is the top-left sub-region coordinate and (tx2,ty2) is the bottom-right. These are high-level meta-texture coordinates.
user_data	A private pointer passed to `cogl_meta_texture_foreach_in_region`.

Namespace: Cogl

Package: doc