Method update

samples/performance/afbc/afbc.cpp:79–99

{
	vkb::VulkanSampleC::request_device_extensions(requested_extensions);

	// Extension that may be used to query if AFBC is enabled
	requested_extensions[VK_EXT_IMAGE_COMPRESSION_CONTROL_EXTENSION_NAME] = vkb::RequestMode::Optional;
}

void AFBCSample::update(float delta_time)
{
	if (afbc_enabled != afbc_enabled_last_value)
	{
		recreate_swapchain();

		afbc_enabled_last_value = afbc_enabled;
	}

	/* Pan the camera back and forth. */
	auto &camera_transform = camera->get_node()->get_component<vkb::sg::Transform>();

	elapsed_time += delta_time;
	float rotation_factor = elapsed_time;

	glm::quat qy          = glm::angleAxis(0.003f * sin(rotation_factor * 0.7f), glm::vec3(0.0f, 1.0f, 0.0f));
	glm::quat orientation = glm::normalize(qy * camera_transform.get_rotation() * glm::angleAxis(0.0f, glm::vec3(1.0f, 0.0f, 0.0f)));
	camera_transform.set_rotation(orientation);