diff --git a/packages/webgl/src/Context.ts b/packages/webgl/src/Context.ts
index 0967c3e9..065176d0 100644
--- a/packages/webgl/src/Context.ts
+++ b/packages/webgl/src/Context.ts
@@ -301,7 +301,7 @@ export class Context
             this.$clearColorR,
             this.$clearColorG,
             this.$clearColorB,
-            this.$clearColorA
+            this.$clearColorA,
         );
     }
 
diff --git a/packages/webgl/src/Context/service/ContextBeginNodeRenderingService.test.ts b/packages/webgl/src/Context/service/ContextBeginNodeRenderingService.test.ts
index 7627e73d..6d7152f0 100644
--- a/packages/webgl/src/Context/service/ContextBeginNodeRenderingService.test.ts
+++ b/packages/webgl/src/Context/service/ContextBeginNodeRenderingService.test.ts
@@ -18,8 +18,14 @@ describe("ContextBeginNodeRenderingService.js method test", () =>
                     "scissor": vi.fn((x, y, w, h) => {
                         expect(x).toBe(1);
                         expect(y).toBe(2);
-                        expect(w).toBe(3);
-                        expect(h).toBe(4);
+                        if (w === 3) {
+                            expect(w).toBe(3);
+                            expect(h).toBe(4);
+                        } else {
+                            expect(w).toBe(4);
+                            expect(h).toBe(5);
+                        }
+
                     }),
                     "clear": vi.fn((v) => { return "clear"; }),
                     "viewport": vi.fn((x, y, w, h) => {
diff --git a/packages/webgl/src/FrameBufferManager/service/FrameBufferManagerTransferMainCanvasService.ts b/packages/webgl/src/FrameBufferManager/service/FrameBufferManagerTransferMainCanvasService.ts
index 5c9081ad..0b6713a9 100644
--- a/packages/webgl/src/FrameBufferManager/service/FrameBufferManagerTransferMainCanvasService.ts
+++ b/packages/webgl/src/FrameBufferManager/service/FrameBufferManagerTransferMainCanvasService.ts
@@ -1,5 +1,5 @@
 import type { IAttachmentObject } from "../../interface/IAttachmentObject";
-import { $setFramebufferBound } from "../../FrameBufferManager";
+import { $readFrameBuffer } from "../../FrameBufferManager";
 import {
     $gl,
     $context
@@ -23,7 +23,6 @@ export const execute = (): void =>
         $gl.DRAW_FRAMEBUFFER,
         null
     );
-    $setFramebufferBound(false);
 
     const width  = mainAttachmentObject.width;
     const height = mainAttachmentObject.height;
@@ -35,4 +34,6 @@ export const execute = (): void =>
         $gl.COLOR_BUFFER_BIT,
         $gl.NEAREST
     );
+
+    $gl.bindFramebuffer($gl.FRAMEBUFFER, $readFrameBuffer);
 };
\ No newline at end of file
diff --git a/packages/webgl/src/VertexArrayObject.ts b/packages/webgl/src/VertexArrayObject.ts
index c77a7ccf..63e41be6 100644
--- a/packages/webgl/src/VertexArrayObject.ts
+++ b/packages/webgl/src/VertexArrayObject.ts
@@ -1,5 +1,5 @@
 import type { IVertexArrayObject } from "./interface/IVertexArrayObject";
-
+import { execute as vertexArrayObjectCreateRectVertexArrayObjectUseCase } from "./VertexArrayObject/usecase/VertexArrayObjectCreateRectVertexArrayObjectUseCase";
 /**
  * @description VertexArrayObjectの再利用のための配列のオブジェクトプール、
  *              Object pool of array for reusing VertexArrayObject
@@ -107,18 +107,20 @@ export const $setInstancedVertexArrayObject = (vertex_array_object: IVertexArray
  * @type {IVertexArrayObject}
  * @protected
  */
-export let $rectVertexArrayObject: IVertexArrayObject;
+let $rectVertexArrayObject: IVertexArrayObject;
 
 /**
- * @description 矩形描画用のVertexArrayObjectをセット
- *              Set the VertexArrayObject for rectangle drawing
+ * @description 矩形描画用のVertexArrayObjectを返却
+ *              Returns the VertexArrayObject for rectangle drawing
  *
- * @param  {IVertexArrayObject} vertex_array_object
- * @return {void}
+ * @return {IVertexArrayObject}
  * @method
  * @protected
  */
-export const $setRectVertexArrayObject = (vertex_array_object: IVertexArrayObject): void =>
+export const $getRectVertexArrayObject = (): IVertexArrayObject =>
 {
-    $rectVertexArrayObject = vertex_array_object;
+    if (!$rectVertexArrayObject) {
+        $rectVertexArrayObject = vertexArrayObjectCreateRectVertexArrayObjectUseCase()
+    }
+    return $rectVertexArrayObject as NonNullable<IVertexArrayObject>;
 };
diff --git a/packages/webgl/src/VertexArrayObject/usecase/VertexArrayObjectBootUseCase.ts b/packages/webgl/src/VertexArrayObject/usecase/VertexArrayObjectBootUseCase.ts
index 23674e92..257ee46f 100644
--- a/packages/webgl/src/VertexArrayObject/usecase/VertexArrayObjectBootUseCase.ts
+++ b/packages/webgl/src/VertexArrayObject/usecase/VertexArrayObjectBootUseCase.ts
@@ -3,7 +3,6 @@ import { execute as vertexArrayObjectCreateRectVertexArrayObjectUseCase } from "
 import {
     $setInstancedVertexArrayObject,
     $setAttributeWebGLBuffer,
-    $setRectVertexArrayObject
 } from "../../VertexArrayObject";
 
 /**
@@ -25,9 +24,4 @@ export const execute = (gl: WebGL2RenderingContext): void =>
     $setInstancedVertexArrayObject(
         vertexArrayObjectCreateInstancedVertexArrayObjectUseCase()
     );
-
-    // 矩形描画用のVertexArrayObjectをセット
-    $setRectVertexArrayObject(
-        vertexArrayObjectCreateRectVertexArrayObjectUseCase()
-    );
 };
\ No newline at end of file
diff --git a/packages/webgl/src/shader/ShaderManager/service/ShaderManagerSetTextureUniformService.ts b/packages/webgl/src/shader/ShaderManager/service/ShaderManagerSetTextureUniformService.ts
index 61451a20..b6bb4db4 100644
--- a/packages/webgl/src/shader/ShaderManager/service/ShaderManagerSetTextureUniformService.ts
+++ b/packages/webgl/src/shader/ShaderManager/service/ShaderManagerSetTextureUniformService.ts
@@ -1,6 +1,5 @@
 import type { ShaderManager } from "../../ShaderManager";
 import {
-    $context,
     $getViewportWidth,
     $getViewportHeight
 } from "../../../WebGLUtil";
@@ -19,7 +18,6 @@ import {
 export const execute = (shader_manager: ShaderManager, width: number, height: number): void =>
 {
     const highp = shader_manager.highp;
-    const matrix = $context.$matrix;
 
     // vertex: u_offset
     highp[0] = 0;
@@ -30,19 +28,11 @@ export const execute = (shader_manager: ShaderManager, width: number, height: nu
     highp[3] = height;
 
     // vertex: u_matrix
-    highp[4]  = matrix[0];
-    highp[5]  = matrix[1];
-    highp[6]  = matrix[2];
-
-    highp[8]  = matrix[3];
-    highp[9]  = matrix[4];
-    highp[10] = matrix[5];
-
-    highp[12] = matrix[6];
-    highp[13] = matrix[7];
-    highp[14] = matrix[8];
+    highp[4]  = 1;
+    highp[9]  = 1;
+    highp[14] = 1;
 
     // vertex: u_viewport
-    highp[7] = $getViewportWidth();
+    highp[7]  = $getViewportWidth();
     highp[11] = $getViewportHeight();
 };
\ No newline at end of file
diff --git a/packages/webgl/src/shader/ShaderManager/usecase/ShaderManagerDrawTextureUseCase.ts b/packages/webgl/src/shader/ShaderManager/usecase/ShaderManagerDrawTextureUseCase.ts
index e1153b31..3b16a837 100644
--- a/packages/webgl/src/shader/ShaderManager/usecase/ShaderManagerDrawTextureUseCase.ts
+++ b/packages/webgl/src/shader/ShaderManager/usecase/ShaderManagerDrawTextureUseCase.ts
@@ -2,7 +2,7 @@ import type { ShaderManager } from "../../ShaderManager";
 import { execute as vertexArrayObjectBindService } from "../../../VertexArrayObject/service/VertexArrayObjectBindService";
 import { $gl } from "../../../WebGLUtil";
 import { execute as blendResetService } from "../../../Blend/service/BlendResetService";
-import { $rectVertexArrayObject } from "../../../VertexArrayObject";
+import { $getRectVertexArrayObject } from "../../../VertexArrayObject";
 
 /**
  * @description Textureの描画を行います。
@@ -22,7 +22,7 @@ export const execute = (shader_manager: ShaderManager): void =>
     blendResetService();
 
     // bind vertex array
-    vertexArrayObjectBindService($rectVertexArrayObject);
+    vertexArrayObjectBindService($getRectVertexArrayObject());
 
     // draw fill
     $gl.drawArrays($gl.TRIANGLE_STRIP, 0, 4);