clear bogus "circular references" for Rollup

src/Engines/engine.ts

@@ -12,7 +12,6 @@ import { IDisplayChangedEventArgs } from "../Engines/engine";
 import { VertexBuffer } from "../Meshes/buffer";
 import { UniformBuffer } from "../Materials/uniformBuffer";
 import { Effect, EffectCreationOptions, EffectFallbacks } from "../Materials/effect";
-import { Material } from "../Materials/material";
 import { IInternalTextureLoader } from "../Materials/Textures/internalTextureLoader";
 import { InternalTexture } from "../Materials/Textures/internalTexture";
 import { BaseTexture } from "../Materials/Textures/baseTexture";
@@ -33,6 +32,7 @@ import { IPipelineContext } from './IPipelineContext';
 import { DataBuffer } from '../Meshes/dataBuffer';
 import { WebGLDataBuffer } from '../Meshes/WebGL/webGLDataBuffer';
 
+declare type Material = import("../Materials/material").Material;
 declare type PostProcess = import("../PostProcesses/postProcess").PostProcess;
 declare type Texture = import("../Materials/Textures/texture").Texture;
 declare type VideoTexture = import("../Materials/Textures/videoTexture").VideoTexture;
@@ -3094,24 +3094,24 @@ export class Engine {
     private _drawMode(fillMode: number): number {
         switch (fillMode) {
             // Triangle views
-            case Material.TriangleFillMode:
+              case Constants.MATERIAL_TriangleFillMode:
                 return this._gl.TRIANGLES;
-            case Material.PointFillMode:
+            case Constants.MATERIAL_PointFillMode:
                 return this._gl.POINTS;
-            case Material.WireFrameFillMode:
+            case Constants.MATERIAL_WireFrameFillMode:
                 return this._gl.LINES;
             // Draw modes
-            case Material.PointListDrawMode:
+            case Constants.MATERIAL_PointListDrawMode:
                 return this._gl.POINTS;
-            case Material.LineListDrawMode:
+            case Constants.MATERIAL_LineListDrawMode:
                 return this._gl.LINES;
-            case Material.LineLoopDrawMode:
+            case Constants.MATERIAL_LineLoopDrawMode:
                 return this._gl.LINE_LOOP;
-            case Material.LineStripDrawMode:
+            case Constants.MATERIAL_LineStripDrawMode:
                 return this._gl.LINE_STRIP;
-            case Material.TriangleStripDrawMode:
+            case Constants.MATERIAL_TriangleStripDrawMode:
                 return this._gl.TRIANGLE_STRIP;
-            case Material.TriangleFanDrawMode:
+            case Constants.MATERIAL_TriangleFanDrawMode:
                 return this._gl.TRIANGLE_FAN;
             default:
                 return this._gl.TRIANGLES;

src/Gamepads/Controllers/poseEnabledController.ts

@@ -10,7 +10,6 @@ import { _DepthCullingState, _StencilState, _AlphaState } from "../../States/ind
 import { EngineStore } from "../../Engines/engineStore";
 
 import { Gamepad } from "../../Gamepads/gamepad";
-import { ExtendedGamepadButton } from "./poseEnabledController";
 import { WebVRFreeCamera, PoseControlled, DevicePose } from "../../Cameras/VR/webVRCamera";
 import { TargetCamera } from "../../Cameras/targetCamera";
 

src/Gamepads/gamepad.ts

@@ -1,5 +1,4 @@
 import { Observable } from "../Misc/observable";
-import { GamepadButtonChanges } from "../Gamepads/gamepad";
 import { _TimeToken } from "../Instrumentation/timeToken";
 import { _DepthCullingState, _StencilState, _AlphaState } from "../States/index";
 

src/Materials/material.ts

@@ -9,7 +9,6 @@ import { EngineStore } from "../Engines/engineStore";
 import { BaseSubMesh, SubMesh } from "../Meshes/subMesh";
 import { Geometry } from "../Meshes/geometry";
 import { AbstractMesh } from "../Meshes/abstractMesh";
-import { Mesh } from "../Meshes/mesh";
 import { UniformBuffer } from "./uniformBuffer";
 import { Effect } from "./effect";
 import { BaseTexture } from "../Materials/Textures/baseTexture";
@@ -19,6 +18,7 @@ import { Constants } from "../Engines/constants";
 import { Logger } from "../Misc/logger";
 import { IInspectable } from '../Misc/iInspectable';
 
+declare type Mesh = import("../Meshes/mesh").Mesh;
 declare type Animation = import("../Animations/animation").Animation;
 declare type InstancedMesh = import('../Meshes/instancedMesh').InstancedMesh;