Method prepare_draw

framework/rendering/postprocessing_renderpass.cpp:462–504

}

void PostProcessingRenderPass::prepare_draw(vkb::core::CommandBufferC &command_buffer, vkb::rendering::RenderTargetC &fallback_render_target)
{
	// Collect all input, output, and sampled-from attachments from all subpasses (steps)
	AttachmentSet        input_attachments, output_attachments;
	SampledAttachmentSet sampled_attachments;

	for (auto &step_ptr : pipeline.get_subpasses())
	{
		auto &step = *dynamic_cast<PostProcessingSubpass *>(step_ptr.get());

		for (auto &it : step.get_input_attachments())
		{
			input_attachments.insert(it.second);
		}

		for (auto &it : step.get_sampled_images())
		{
			if (const uint32_t *sampled_attachment = it.second.get_target_attachment())
			{
				auto *image_rt                  = it.second.get_render_target();
				auto  packed_sampled_attachment = *sampled_attachment;

				// pack sampled attachment
				if (it.second.is_depth_resolve())
				{
					packed_sampled_attachment |= DEPTH_RESOLVE_BITMASK;
				}

				sampled_attachments.insert({image_rt, packed_sampled_attachment});
			}
		}

		for (uint32_t it : step.get_output_attachments())
		{
			output_attachments.insert(it);
		}
	}

	transition_attachments(input_attachments, sampled_attachments, output_attachments,
	                       command_buffer, fallback_render_target);
	update_load_stores(input_attachments, sampled_attachments, output_attachments,
	                   fallback_render_target);
}

void PostProcessingRenderPass::draw(vkb::core::CommandBufferC &command_buffer, vkb::rendering::RenderTargetC &default_render_target)
{