GPU: Split gpu_shader_material into multiple files.

This patch continue the efforts to split the `gpu_shader_material` file
started in D5569.

Dependency resolution is now recursive. Each shading node gets its own
file. Additionally, some utility files are added to be shared between
files, like `math_util`, `color_util`, and `hash`. Some files are always
included because they may be used in the execution function, like
`world_normals`.

Some glsl functions appeared to be unused, so they were removed, like
`output_node`, `bits_to_01`, and `exp_blender`. Other functions have
been renamed to be more general and get used as utils, like `texco_norm`
which became `vector_normalize`.

A lot of the opengl tests fails, but those same tests also fail in
master, so this is probably unrelated to this patch.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D5616

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/nodes/shader/node_shader_util.c b/source/blender/nodes/shader/node_shader_util.c
index 2e8f81979a8..65676a5ea91 100644
--- a/source/blender/nodes/shader/node_shader_util.c
+++ b/source/blender/nodes/shader/node_shader_util.c
@@ -283,7 +283,7 @@ void node_shader_gpu_tex_mapping(GPUMaterial *mat,
     GPU_link(mat, "mapping", in[0].link, tmat0, tmat1, tmat2, tmat3, tmin, tmax, &in[0].link);
 
     if (texmap->type == TEXMAP_TYPE_NORMAL) {
-      GPU_link(mat, "texco_norm", in[0].link, &in[0].link);
+      GPU_link(mat, "vector_normalize", in[0].link, &in[0].link);
     }
   }
 }