upgrade Filament to v1.41

ios/include/filament/View.h

@@ -707,6 +707,9 @@ public:
          * The viewport, projection and model matrices can be obtained from Camera. Because
          * pick() has some latency, it might be more accurate to obtain these values at the
          * time the View::pick() call is made.
+         *
+         * Note: if the Engine is running at FEATURE_LEVEL_0, the precision or `depth` and
+         *       `fragCoords.z` is only 8-bits.
          */
         math::float3 fragCoords;        //! screen space coordinates in GL convention
     };
@@ -803,6 +806,37 @@ public:
     PickingQuery& pick(uint32_t x, uint32_t y, backend::CallbackHandler* handler,
             PickingQueryResultCallback callback) noexcept;
 
+    /**
+     * Set the value of material global variables. There are up-to four such variable each of
+     * type float4. These variables can be read in a user Material with
+     * `getMaterialGlobal{0|1|2|3}()`. All variable start with a default value of { 0, 0, 0, 1 }
+     *
+     * @param index index of the variable to set between 0 and 3.
+     * @param value new value for the variable.
+     * @see getMaterialGlobal
+     */
+    void setMaterialGlobal(uint32_t index, math::float4 const& value);
+
+    /**
+     * Get the value of the material global variables.
+     * All variable start with a default value of { 0, 0, 0, 1 }
+     *
+     * @param index index of the variable to set between 0 and 3.
+     * @return current value of the variable.
+     * @see setMaterialGlobal
+     */
+    math::float4 getMaterialGlobal(uint32_t index) const;
+
+    /**
+     * Get an Entity representing the large scale fog object.
+     * This entity is always inherited by the View's Scene.
+     *
+     * It is for example possible to create a TransformManager component with this
+     * Entity and apply a transformation globally on the fog.
+     *
+     * @return an Entity representing the large scale fog object.
+     */
+    utils::Entity getFogEntity() const noexcept;
 
     /**
      * List of available ambient occlusion techniques