paint: fix first paint

paint/sources/nodes_brush/brush_output_node.c

@@ -116,7 +116,11 @@ void brush_output_node_run() {
 #endif
 	}
 
-	bool first_paint = g_context->last_paint_x < 0 || g_context->last_paint_y < 0;
+	// First time init
+	if (g_context->last_paint_x < 0 || g_context->last_paint_y < 0) {
+		g_context->last_paint_vec_x = g_context->paint_vec.x;
+		g_context->last_paint_vec_y = g_context->paint_vec.y;
+	}
 
 	// Paint bounds
 	if (g_context->paint_vec.x < left || g_context->paint_vec.x > right || g_context->paint_vec.y < top || g_context->paint_vec.y > bottom) {
@@ -185,11 +189,6 @@ void brush_output_node_run() {
 		brush_output_node_parse_inputs();
 	}
 
-	if (first_paint) {
-		g_context->last_paint_vec_x = g_context->paint_vec.x;
-		g_context->last_paint_vec_y = g_context->paint_vec.y;
-	}
-
 	// Path layer - add point and repaint
 	if (slot_layer_is_path(g_context->layer)) {
 		util_layer_add_path_point(g_context->layer, g_context->paint_vec.x, g_context->paint_vec.y);

paint/sources/render/render_path_base.c

@@ -159,13 +159,7 @@ void render_path_base_commands(void (*draw_commands)(void)) {
 		return;
 	}
 
-	if (base_ui_enabled) {
-		util_layer_check_path_grab();
-		util_brush_update();
-	}
-
 	render_path_base_begin();
-
 	render_path_paint_begin();
 	render_path_base_draw_split(draw_commands);
 	render_path_base_draw_gbuffer();

paint/sources/ui/ui_base.c

@@ -222,6 +222,8 @@ void ui_base_update(void *_) {
 		util_touch_update();
 		util_stencil_transform();
 		util_select_update();
+		util_layer_check_path_grab();
+		util_brush_update();
 		util_layer_update_preview();
 		util_shortcut_undo_redo();
 		util_shortcut_global();