EEVEE: GLSL refactor/cleanup

- add the use of DRWShaderLibrary to EEVEE's glsl codebase to reduce code
complexity and duplication.
- split bsdf_common_lib.glsl into multiple sub library which are now shared
with other engines.
- the surface shader code is now more organised and have its own files.
- change default world to use a material nodetree and make lookdev shader
more clear.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D8306

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/draw/engines/workbench/workbench_shader.c b/source/blender/draw/engines/workbench/workbench_shader.c
index 835f10598d4..aab3cef00e6 100644
--- a/source/blender/draw/engines/workbench/workbench_shader.c
+++ b/source/blender/draw/engines/workbench/workbench_shader.c
@@ -28,6 +28,8 @@
 #include "workbench_engine.h"
 #include "workbench_private.h"
 
+extern char datatoc_common_math_lib_glsl[];
+extern char datatoc_common_math_geom_lib_glsl[];
 extern char datatoc_common_hair_lib_glsl[];
 extern char datatoc_common_pointcloud_lib_glsl[];
 extern char datatoc_common_view_lib_glsl[];
@@ -119,6 +121,8 @@ void workbench_shader_library_ensure(void)
   if (e_data.lib == NULL) {
     e_data.lib = DRW_shader_library_create();
     /* NOTE: Theses needs to be ordered by dependencies. */
+    DRW_SHADER_LIB_ADD(e_data.lib, common_math_lib);
+    DRW_SHADER_LIB_ADD(e_data.lib, common_math_geom_lib);
     DRW_SHADER_LIB_ADD(e_data.lib, common_hair_lib);
     DRW_SHADER_LIB_ADD(e_data.lib, common_view_lib);
     DRW_SHADER_LIB_ADD(e_data.lib, common_pointcloud_lib);