diff --git a/src/layaAir/laya/d3/core/MeshRenderer.ts b/src/layaAir/laya/d3/core/MeshRenderer.ts
index 0e6daa7751..2151f860ca 100644
--- a/src/layaAir/laya/d3/core/MeshRenderer.ts
+++ b/src/layaAir/laya/d3/core/MeshRenderer.ts
@@ -323,6 +323,7 @@ export class MeshRenderer extends BaseRender {
                     this.owner && renderElement.setTransform((this.owner as Sprite3D)._transform);
                     renderElement.render = this;
                 }
+                materials[i] = materials[i] || BlinnPhongMaterial.defaultMaterial;
                 renderElement.setGeometry(mesh.getSubMesh(i));
             }
 
diff --git a/src/layaAir/laya/d3/core/SkinnedMeshRenderer.ts b/src/layaAir/laya/d3/core/SkinnedMeshRenderer.ts
index dff54fe300..b890d9248d 100644
--- a/src/layaAir/laya/d3/core/SkinnedMeshRenderer.ts
+++ b/src/layaAir/laya/d3/core/SkinnedMeshRenderer.ts
@@ -229,7 +229,6 @@ export class SkinnedMeshRenderer extends MeshRenderer {
             for (var i: number = 0; i < count; i++) {
                 var renderElement: SkinRenderElement = this._renderElements[i];
                 if (!renderElement) {
-                    var material: Material = this.sharedMaterials[i];
                     renderElement = this._renderElements[i] = this._renderElements[i] ? this._renderElements[i] : this._createRenderElement();
                     if (this._cacheRootBone) {
                         renderElement.setTransform(this._cacheRootBone._transform);
@@ -237,6 +236,7 @@ export class SkinnedMeshRenderer extends MeshRenderer {
                         renderElement.setTransform((this.owner as Sprite3D)._transform);
                     }
                     renderElement.render = this;
+                    materials[i] = materials[i] || BlinnPhongMaterial.defaultMaterial;
                 }
                 renderElement.setGeometry(mesh.getSubMesh(i));
             }
diff --git a/src/layaAir/laya/d3/core/render/BaseRender.ts b/src/layaAir/laya/d3/core/render/BaseRender.ts
index 49fcbf5027..3aef82cbee 100644
--- a/src/layaAir/laya/d3/core/render/BaseRender.ts
+++ b/src/layaAir/laya/d3/core/render/BaseRender.ts
@@ -349,14 +349,17 @@ export class BaseRender extends Component implements IBoundsCell {
     }
 
     set sharedMaterial(value: Material) {
-        var lastValue: Material = this._sharedMaterials[0];
-        if (lastValue !== value) {
-            this._sharedMaterials[0] = value;
+
+        let lastMat = this._sharedMaterials[0];
+        this._changeMaterialReference(lastMat, value);
+        this._sharedMaterials[0] = value;
+
+        let element = this._renderElements[0];
+        if (element && element.material !== value) {
             this._materialsInstance[0] = false;
-            this._changeMaterialReference(lastValue, value);
-            var renderElement: RenderElement = this._renderElements[0];
-            (renderElement) && (renderElement.material = value);
+            element.material = value;
         }
+
         this._isSupportRenderFeature();
     }
 
@@ -371,28 +374,25 @@ export class BaseRender extends Component implements IBoundsCell {
         var materialsInstance: boolean[] = this._materialsInstance;
         var sharedMats: Material[] = this._sharedMaterials;
 
-        for (var i: number = 0, n: number = sharedMats.length; i < n; i++) {
-            var lastMat: Material = sharedMats[i];
-            (lastMat) && (lastMat._removeReference());
-        }
-
         if (value) {
-            var count: number = value.length;
-            for (i = 0; i < count; i++) {
-                lastMat = sharedMats[i];
-                var mat: Material = value[i];
-                if (lastMat !== mat) {
+            let count = value.length;
+            for (let i = 0; i < count; i++) {
+                let mat = value[i];
+                let lastMat = sharedMats[i];
+                this._changeMaterialReference(lastMat, mat);
+                sharedMats[i] = mat;
+
+                let element = this._renderElements[i];
+                if (element && element.material !== mat) {
                     materialsInstance[i] = false;
-                    var renderElement: RenderElement = this._renderElements[i];
-                    (renderElement) && (renderElement.material = mat);
+                    element.material = mat;
                 }
-                if (mat) {
-                    mat._addReference();
-                }
-                sharedMats[i] = mat;
             }
 
-            for (i = count, n = sharedMats.length; i < n; i++) {
+            for (let i = count, n = sharedMats.length; i < n; i++) {
+                let mat = sharedMats[i];
+                mat && mat._removeReference();
+
                 let renderElement = this._renderElements[i];
                 renderElement && (renderElement.material = null);
             }
@@ -401,6 +401,11 @@ export class BaseRender extends Component implements IBoundsCell {
             sharedMats.length = count;
         }
         else {
+            for (var i = 0, n = sharedMats.length; i < n; i++) {
+                let lastMat = sharedMats[i];
+                (lastMat) && (lastMat._removeReference());
+            }
+
             this._sharedMaterials = [];
         }
         this._isSupportRenderFeature();