EEVEE: Refactor of eevee_material.c

These are the modifications:

-With DRW modification we reduce the number of passes we need to populate.
-Rename passes for consistent naming.
-Reduce complexity in code compilation
-Cleanup how renderpass accumulation passes are setup, using pass instances.
-Make sculpt mode compatible with shadows
-Make hair passes compatible with SSS
-Error shader and lookdev materials now use standalone materials.
-Support default shader (world and material) using a default nodetree internally.
-Change BLEND_CLIP to be emulated by gpu nodetree. Making less shader variations.
-Use BLI_memblock for cache memory allocation.
-Renderpasses are handled by switching a UBO ref bind.

One major hack in this patch is the use of modified pointer as ghash keys.
This rely on the assumption that the keys will never overlap because the
number of options per key will never be bigger than the pointed struct.

The use of one single nodetree to support default material is also a bit hacky
since it won't support concurent usage of this nodetree.
(see EEVEE_shader_default_surface_nodetree)

Another change is that objects with shader errors now appear solid magenta instead
of shaded magenta. This is only because of code reuse purpose but could be changed
if really needed.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D7642

1 files changed, 0 insertions, 12 deletions

diff --git a/source/blender/draw/intern/draw_common.h b/source/blender/draw/intern/draw_common.h
index f14cdc0dbde..656d72b2808 100644
--- a/source/blender/draw/intern/draw_common.h
+++ b/source/blender/draw/intern/draw_common.h
@@ -172,23 +172,11 @@ bool DRW_object_axis_orthogonal_to_view(Object *ob, int axis);
 
 /* This creates a shading group with display hairs.
  * The draw call is already added by this function, just add additional uniforms. */
-struct DRWShadingGroup *DRW_shgroup_hair_create(struct Object *object,
-                                                struct ParticleSystem *psys,
-                                                struct ModifierData *md,
-                                                struct DRWPass *hair_pass,
-                                                struct GPUShader *shader);
-
 struct DRWShadingGroup *DRW_shgroup_hair_create_sub(struct Object *object,
                                                     struct ParticleSystem *psys,
                                                     struct ModifierData *md,
                                                     struct DRWShadingGroup *shgrp);
 
-struct DRWShadingGroup *DRW_shgroup_material_hair_create(struct Object *object,
-                                                         struct ParticleSystem *psys,
-                                                         struct ModifierData *md,
-                                                         struct DRWPass *hair_pass,
-                                                         struct GPUMaterial *material);
-
 void DRW_hair_init(void);
 void DRW_hair_update(void);
 void DRW_hair_free(void);