Blender Git Loki

Bugfix #24933

Compositor: Texture node only allowed 1 user, with more nodes using it
there was a thread conflict, using same memory for writing values.

Also: brought back the original intention for texture nodes, which is to
be using a "procedural image", not allocating memory for a buffer, but
only allowing to read per pixel. Commit in 2007 (!) allocated full buffers
for texture nodes, without using them even.