Add get/set accessors for ShaderMaterial._shaderPath

dist/preview release/what's new.md

@@ -108,6 +108,7 @@
 
 - Added `ShaderMaterial.setColor4Array` ([JonathanTron](https://github.com/JonathanTron/))
 - Added `ShaderMaterial.setArray4` ([JonathanTron](https://github.com/JonathanTron/))
+- Added get/set accessors for `ShaderMaterial._shaderPath` ([Popov72](https://github.com/Popov72))
 - Added `scene.environmentIntensity` to control the IBL strength overall in a scene ([Sebavan](https://github.com/sebavan/))
 - Added support of image processing for `WaterMaterial` ([julien-moreau](https://github.com/julien-moreau))
 - Added `pbrBRDFConfiguration.useSpecularGlossinessInputEnergyConservation` to allow Specular-Workflow energy conservation to be turned off ([ColorDigital-PS](https://github.com/ColorDigital-PS)).

src/Materials/shaderMaterial.ts

@@ -117,6 +117,22 @@ export class ShaderMaterial extends Material {
         };
     }
 
+    /**
+     * Gets the shader path used to define the shader code
+     * It can be modified to trigger a new compilation
+     */
+    public get shaderPath(): any {
+        return this._shaderPath;
+    }
+
+    /**
+     * Sets the shader path used to define the shader code
+     * It can be modified to trigger a new compilation
+     */
+    public set shaderPath(shaderPath: any) {
+        this._shaderPath = shaderPath;
+    }
+
     /**
      * Gets the options used to compile the shader.
      * They can be modified to trigger a new compilation