Add theme option for cliping border

source/blender/blenkernel/BKE_blender.h

@@ -42,7 +42,7 @@ extern "C" {
  * and keep comment above the defines.
  * Use STRINGIFY() rather than defining with quotes */
 #define BLENDER_VERSION         273
-#define BLENDER_SUBVERSION      4
+#define BLENDER_SUBVERSION      5
 /* 262 was the last editmesh release but it has compatibility code for bmesh data */
 #define BLENDER_MINVERSION      270
 #define BLENDER_MINSUBVERSION   5

source/blender/editors/include/ED_view3d.h

@@ -310,7 +310,6 @@ struct ImBuf *ED_view3d_draw_offscreen_imbuf(struct Scene *scene, struct View3D
                                              bool draw_background, int alpha_mode, char err_out[256]);
 struct ImBuf *ED_view3d_draw_offscreen_imbuf_simple(struct Scene *scene, struct Object *camera, int width, int height, unsigned int flag, int drawtype,
                                                     bool use_solid_tex, bool use_gpencil, bool draw_background, int alpha_mode, char err_out[256]);
-void ED_view3d_offscreen_sky_color_get(struct Scene *scene, float sky_color[3]);
 
 struct Base *ED_view3d_give_base_under_cursor(struct bContext *C, const int mval[2]);
 void ED_view3d_quadview_update(struct ScrArea *sa, struct ARegion *ar, bool do_clip);

source/blender/editors/include/UI_resources.h

@@ -293,6 +293,8 @@ enum {
 	TH_INFO_DEBUG,
 	TH_INFO_DEBUG_TEXT,
 	TH_VIEW_OVERLAY,
+	
+	TH_V3D_CLIPPING_BORDER
 };
 /* XXX WARNING: previous is saved in file, so do not change order! */
 

source/blender/editors/interface/resources.c

@@ -682,6 +682,9 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 				case TH_INFO_DEBUG_TEXT:
 					cp = ts->info_debug_text;
 					break;
+				case TH_V3D_CLIPPING_BORDER:
+					cp = ts->clipping_border_3d;
+					break;
 			}
 		}
 	}
@@ -951,6 +954,7 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->tv3d.gradients.high_gradient, 58, 58, 58, 255);
 	btheme->tv3d.gradients.show_grad = false;
 
+	rgba_char_args_set(btheme->tv3d.clipping_border_3d, 50, 50, 50, 255);
 	/* space buttons */
 	/* to have something initialized */
 	btheme->tbuts = btheme->tv3d;
@@ -2572,6 +2576,25 @@ void init_userdef_do_versions(void)
 		}
 	}
 
+	if (U.versionfile < 273 || (U.versionfile == 273 && U.subversionfile < 5)) {
+		bTheme *btheme;
+		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
+			unsigned char *cp = (unsigned char *)btheme->tv3d.clipping_border_3d;
+			int c;
+			copy_v4_v4_char((char *)cp, btheme->tv3d.back);
+			c = cp[0] - 8;
+			CLAMP(c, 0, 255);
+			cp[0] = c;
+			c = cp[1] - 8;
+			CLAMP(c, 0, 255);
+			cp[1] = c;
+			c = cp[2] - 8;
+			CLAMP(c, 0, 255);
+			cp[2] = c;
+			cp[3] = 255;
+		}
+	}
+		
 	if (U.pixelsize == 0.0f)
 		U.pixelsize = 1.0f;
 	

source/blender/editors/space_view3d/view3d_draw.c

@@ -162,15 +162,15 @@ static void view3d_draw_clipping(RegionView3D *rv3d)
 
 		/* fill in zero alpha for rendering & re-projection [#31530] */
 		unsigned char col[4];
-		UI_GetThemeColorShade3ubv(TH_BACK, -8, col);
-		col[3] = 0;
+		UI_GetThemeColor4ubv(TH_V3D_CLIPPING_BORDER, col);
 		glColor4ubv(col);
 
+		glEnable(GL_BLEND);
 		glEnableClientState(GL_VERTEX_ARRAY);
 		glVertexPointer(3, GL_FLOAT, 0, bb->vec);
 		glDrawElements(GL_QUADS, sizeof(clipping_index) / sizeof(unsigned int), GL_UNSIGNED_INT, clipping_index);
 		glDisableClientState(GL_VERTEX_ARRAY);
-
+		glDisable(GL_BLEND);
 	}
 }
 
@@ -3089,15 +3089,6 @@ void ED_view3d_draw_offscreen(Scene *scene, View3D *v3d, ARegion *ar, int winx,
 	G.f &= ~G_RENDER_OGL;
 }
 
-/* get a color used for offscreen sky, returns color in sRGB space */
-void ED_view3d_offscreen_sky_color_get(Scene *scene, float sky_color[3])
-{
-	if (scene->world)
-		linearrgb_to_srgb_v3_v3(sky_color, &scene->world->horr);
-	else
-		UI_GetThemeColor3fv(TH_BACK, sky_color);
-}
-
 /* utility func for ED_view3d_draw_offscreen */
 ImBuf *ED_view3d_draw_offscreen_imbuf(Scene *scene, View3D *v3d, ARegion *ar, int sizex, int sizey, unsigned int flag,
                                       bool draw_background, int alpha_mode, char err_out[256])

source/blender/makesdna/DNA_userdef_types.h

@@ -288,9 +288,10 @@ typedef struct ThemeSpace {
 
 	char handle_vertex[4];
 	char handle_vertex_select[4];
-	char pad2[4];
 	
 	char handle_vertex_size;
+
+	char clipping_border_3d[4];
 	
 	char marker_outline[4], marker[4], act_marker[4], sel_marker[4], dis_marker[4], lock_marker[4];
 	char bundle_solid[4];

source/blender/makesrna/intern/rna_userdef.c

@@ -1682,6 +1682,11 @@ static void rna_def_userdef_theme_space_view3d(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Skin Root", "");
 	RNA_def_property_update(prop, 0, "rna_userdef_update");
 
+	prop = RNA_def_property(srna, "clipping_border_3d", PROP_FLOAT, PROP_COLOR_GAMMA);
+	RNA_def_property_array(prop, 4);
+	RNA_def_property_ui_text(prop, "Clipping Border", "");
+	RNA_def_property_update(prop, 0, "rna_userdef_update");
+	
 	rna_def_userdef_theme_spaces_paint_curves(srna);
 }