Workbench: Material specific settings for the specular

- Uses the roughness setting of the basic eevee material
- renamed gloss_mir to roughness
- set default of roughness to 0.25
- renamed ray_mirror to metallic
- cleaned up material rna (BI mirror struct)
- use BLINN phong model
- normalize incoming/outgoing specular light
- when using camera oriented studiolight, the SolidLight will be used
for specular highlights
- EXPERIMENT: when in world oriented studiolight only the shadow direction will be used.
- change the settings of the internal light to make scenes more
readable

1 files changed, 14 insertions, 1 deletions

diff --git a/source/blender/draw/engines/workbench/shaders/workbench_data_lib.glsl b/source/blender/draw/engines/workbench/shaders/workbench_data_lib.glsl
index c826a5b82fa..fc076ee8117 100644
--- a/source/blender/draw/engines/workbench/shaders/workbench_data_lib.glsl
+++ b/source/blender/draw/engines/workbench/shaders/workbench_data_lib.glsl
@@ -1,3 +1,8 @@
+struct LightData {
+	vec4 light_direction_vs;
+	vec4 specular_color;
+};
+
 struct WorldData {
 	vec4 diffuse_light_x_pos;
 	vec4 diffuse_light_x_neg;
@@ -9,5 +14,13 @@ struct WorldData {
 	vec4 background_color_high;
 	vec4 object_outline_color;
 	vec4 light_direction_vs;
-	float specular_sharpness;
+	LightData lights[3];
+	int num_lights;
+	int pad[3];
+};
+
+struct MaterialData {
+	vec4 diffuse_color;
+	vec4 specular_color;
+	float roughness;
 };