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, 88 insertions, 4 deletions

diff --git a/source/blender/gpu/CMakeLists.txt b/source/blender/gpu/CMakeLists.txt
index 4a67f5f6af8..f11dcc9bcf0 100644
--- a/source/blender/gpu/CMakeLists.txt
+++ b/source/blender/gpu/CMakeLists.txt
@@ -232,10 +232,94 @@ data_to_c_simple(shaders/gpu_shader_keyframe_diamond_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_keyframe_diamond_frag.glsl SRC)
 
 data_to_c_simple(shaders/gpu_shader_geometry.glsl SRC)
-data_to_c_simple(shaders/gpu_shader_material.glsl SRC)
-data_to_c_simple(shaders/gpu_shader_material_hash.glsl SRC)
-data_to_c_simple(shaders/gpu_shader_material_magic.glsl SRC)
-data_to_c_simple(shaders/gpu_shader_material_white_noise.glsl SRC)
+
+data_to_c_simple(shaders/material/gpu_shader_material_add_shader.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_ambient_occlusion.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_anisotropic.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_attribute.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_background.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_bevel.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_blackbody.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_bright_contrast.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_bump.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_camera.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_cell_noise.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_clamp.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_color_ramp.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_color_util.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_combine_hsv.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_combine_rgb.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_combine_xyz.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_diffuse.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_displacement.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_eevee_specular.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_emission.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_fractal_noise.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_fresnel.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_gamma.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_geometry.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_glass.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_glossy.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_hair_info.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_hash.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_holdout.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_hue_sat_val.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_invert.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_layer_weight.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_light_falloff.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_light_path.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_mapping.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_map_range.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_math.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_math_util.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_mix_rgb.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_mix_shader.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_noise.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_normal.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_normal_map.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_object_info.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_output_material.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_output_world.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_particle_info.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_principled.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_refraction.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_rgb_curves.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_rgb_to_bw.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_separate_hsv.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_separate_rgb.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_separate_xyz.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_set.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_shader_to_rgba.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_squeeze.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_subsurface_scattering.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tangent.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_brick.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_checker.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_environment.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_gradient.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_image.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_magic.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_musgrave.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_noise.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_sky.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_texture_coordinates.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_voronoi.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_wave.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_tex_white_noise.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_toon.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_translucent.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_transparent.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_uv_map.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_vector_curves.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_vector_displacement.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_vector_math.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_velvet.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_volume_absorption.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_volume_info.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_volume_principled.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_volume_scatter.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_wireframe.glsl SRC)
+data_to_c_simple(shaders/material/gpu_shader_material_world_normals.glsl SRC)
 
 data_to_c_simple(shaders/gpu_shader_gpencil_stroke_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_gpencil_stroke_frag.glsl SRC)