同一個FrameBuffer綁定2次會有影響碼？比如導致1285

[uchiaitachipro]

fun attachTexture(texture: Texture) {
    attachedTexture?.decreaseRef()
    attachedTexture = texture
    if (frameBuffer == GL_NONE) {
        frameBuffer = GLUtil.createFrameBuffer()
    }
    **bind()**
    Util.assert(texture.width > 0 && texture.height > 0 && (texture.type == GL_TEXTURE_2D || texture.type == GLES11Ext.GL_TEXTURE_EXTERNAL_OES) && glIsTexture(texture.texture) && frameBuffer > 0, "texture error")
    glCheck { glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture.type, texture.texture, 0) }
}


override fun bindOutput() {
    output?.let { outputTexture ->
        FrameBufferPool.obtainFrameBuffer().apply {
            attachTexture(outputTexture)
            **bind()**
            Util.assert(outputTexture.width > 0 && outputTexture.height > 0, "output size error")
            glCheck { glViewport(0, 0, outputTexture.width, outputTexture.height) }
        }
    }
}