StudioLight: Add a 4th light to adjust lighting

There was a bug due to non-aligned struct in the DNA that prevented us
to increase the size of the userdef light array.

Since the studio lights are now presets and stored in external files,
there is no need to keep backward compatibility with theses lights.

Remove the old array and create a new one.

Add blue tint light for specular.

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index e0bed7216e2..8fc7c0ed326 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -494,6 +494,7 @@ enum {
 typedef struct SolidLight {
 	int flag;
 	float smooth;
+	float pad[2];
 	float col[4], spec[4], vec[4];
 } SolidLight;
 
@@ -586,7 +587,8 @@ typedef struct UserDef {
 	short gp_manhattendist, gp_euclideandist, gp_eraser;
 	short gp_settings;  /* eGP_UserdefSettings */
 	short tb_leftmouse, tb_rightmouse;
-	struct SolidLight light[3];
+	/* struct SolidLight light[3] DNA_DEPRECATED; */ /* Was using non-aligned struct! */
+	struct SolidLight light_param[4];
 	float light_ambient[3], pad7;
 	short gizmo_flag, gizmo_size;
 	short edit_solid_light;