diff --git a/internal/graphicsdriver/opengl/gl/package_notwindows.go b/internal/graphicsdriver/opengl/gl/package_notwindows.go
index d6755404e..888abe1f0 100644
--- a/internal/graphicsdriver/opengl/gl/package_notwindows.go
+++ b/internal/graphicsdriver/opengl/gl/package_notwindows.go
@@ -130,7 +130,6 @@ package gl
 // typedef void  (APIENTRYP GPGENFRAMEBUFFERSEXT)(GLsizei  n, GLuint * framebuffers);
 // typedef void  (APIENTRYP GPGENRENDERBUFFERSEXT)(GLsizei  n, GLuint * renderbuffers);
 // typedef void  (APIENTRYP GPGENTEXTURES)(GLsizei  n, GLuint * textures);
-// typedef void  (APIENTRYP GPGETBUFFERSUBDATA)(GLenum  target, GLintptr  offset, GLsizeiptr  size, void * data);
 // typedef void  (APIENTRYP GPGETDOUBLEI_V)(GLenum  target, GLuint  index, GLdouble * data);
 // typedef void  (APIENTRYP GPGETDOUBLEI_VEXT)(GLenum  pname, GLuint  index, GLdouble * params);
 // typedef GLenum  (APIENTRYP GPGETERROR)();
@@ -280,9 +279,6 @@ package gl
 // static void  glowGenTextures(GPGENTEXTURES fnptr, GLsizei  n, GLuint * textures) {
 //   (*fnptr)(n, textures);
 // }
-// static void  glowGetBufferSubData(GPGETBUFFERSUBDATA fnptr, GLenum  target, GLintptr  offset, GLsizeiptr  size, void * data) {
-//   (*fnptr)(target, offset, size, data);
-// }
 // static void  glowGetDoublei_v(GPGETDOUBLEI_V fnptr, GLenum  target, GLuint  index, GLdouble * data) {
 //   (*fnptr)(target, index, data);
 // }
@@ -463,7 +459,6 @@ var (
 	gpGenFramebuffersEXT          C.GPGENFRAMEBUFFERSEXT
 	gpGenRenderbuffersEXT         C.GPGENRENDERBUFFERSEXT
 	gpGenTextures                 C.GPGENTEXTURES
-	gpGetBufferSubData            C.GPGETBUFFERSUBDATA
 	gpGetDoublei_v                C.GPGETDOUBLEI_V
 	gpGetDoublei_vEXT             C.GPGETDOUBLEI_VEXT
 	gpGetError                    C.GPGETERROR
@@ -658,10 +653,6 @@ func GenTextures(n int32, textures *uint32) {
 	C.glowGenTextures(gpGenTextures, (C.GLsizei)(n), (*C.GLuint)(unsafe.Pointer(textures)))
 }
 
-func GetBufferSubData(target uint32, offset int, size int, data unsafe.Pointer) {
-	C.glowGetBufferSubData(gpGetBufferSubData, (C.GLenum)(target), (C.GLintptr)(offset), (C.GLsizeiptr)(size), data)
-}
-
 func GetDoublei_v(target uint32, index uint32, data *float64) {
 	C.glowGetDoublei_v(gpGetDoublei_v, (C.GLenum)(target), (C.GLuint)(index), (*C.GLdouble)(unsafe.Pointer(data)))
 }
@@ -958,10 +949,6 @@ func InitWithProcAddrFunc(getProcAddr func(name string) unsafe.Pointer) error {
 	if gpGenTextures == nil {
 		return errors.New("glGenTextures")
 	}
-	gpGetBufferSubData = (C.GPGETBUFFERSUBDATA)(getProcAddr("glGetBufferSubData"))
-	if gpGetBufferSubData == nil {
-		return errors.New("glGetBufferSubData")
-	}
 	gpGetDoublei_v = (C.GPGETDOUBLEI_V)(getProcAddr("glGetDoublei_v"))
 	gpGetDoublei_vEXT = (C.GPGETDOUBLEI_VEXT)(getProcAddr("glGetDoublei_vEXT"))
 	gpGetError = (C.GPGETERROR)(getProcAddr("glGetError"))
diff --git a/internal/graphicsdriver/opengl/gl/package_windows.go b/internal/graphicsdriver/opengl/gl/package_windows.go
index ee406251b..b9e15a6d0 100644
--- a/internal/graphicsdriver/opengl/gl/package_windows.go
+++ b/internal/graphicsdriver/opengl/gl/package_windows.go
@@ -44,7 +44,6 @@ var (
 	gpGenFramebuffersEXT          uintptr
 	gpGenRenderbuffersEXT         uintptr
 	gpGenTextures                 uintptr
-	gpGetBufferSubData            uintptr
 	gpGetDoublei_v                uintptr
 	gpGetDoublei_vEXT             uintptr
 	gpGetError                    uintptr
@@ -239,10 +238,6 @@ func GenTextures(n int32, textures *uint32) {
 	syscall.Syscall(gpGenTextures, 2, uintptr(n), uintptr(unsafe.Pointer(textures)), 0)
 }
 
-func GetBufferSubData(target uint32, offset int, size int, data unsafe.Pointer) {
-	syscall.Syscall6(gpGetBufferSubData, 4, uintptr(target), uintptr(offset), uintptr(size), uintptr(data), 0, 0)
-}
-
 func GetDoublei_v(target uint32, index uint32, data *float64) {
 	syscall.Syscall(gpGetDoublei_v, 3, uintptr(target), uintptr(index), uintptr(unsafe.Pointer(data)))
 }
@@ -539,10 +534,6 @@ func InitWithProcAddrFunc(getProcAddr func(name string) uintptr) error {
 	if gpGenTextures == 0 {
 		return errors.New("glGenTextures")
 	}
-	gpGetBufferSubData = getProcAddr("glGetBufferSubData")
-	if gpGetBufferSubData == 0 {
-		return errors.New("glGetBufferSubData")
-	}
 	gpGetDoublei_v = getProcAddr("glGetDoublei_v")
 	gpGetDoublei_vEXT = getProcAddr("glGetDoublei_vEXT")
 	gpGetError = getProcAddr("glGetError")