Normal Debugging

prepare

• loadAssets：加载模型
• prepareUniformBuffers
  • createBuffer: VS
  • createBuffer: GS
  • updateUniformBuffers
• setupDescriptorSetLayout
  • vkCreateDescriptorSetLayout
  • vkCreatePipelineLayout
• preparePipelines
  • Rendering pipeline
    • vkCreateGraphicsPipelines: 计算法线阶段(带GS)
    • vkCreateGraphicsPipelines: 渲染模型阶段
• setupDescriptorPool
  • vkCreateDescriptorPool
• setupDescriptorSet
  • vkAllocateDescriptorSets
  • writeDescriptorSet
  • vkUpdateDescriptorSets
• buildCommandBuffers
  • loop
    • vkBeginCommandBuffer
    • vkCmdBeginRenderPass
    • vkCmdSetViewport
    • vkCmdSetScissor
    • vkCmdSetLineWidth:设置线宽
    • vkCmdBindDescriptorSets
    • Solid shading
      • vkCmdBindPipeline
      • draw
    • Normal debugging
      • vkCmdBindPipeline
      • draw
    • drawUI
    • vkCmdEndRenderPass
    • vkEndCommandBuffer

render

• draw
  • prepareFrame
  • vkQueueSubmit
  • submitFrame

shader

• VS: 正常
• GS: 正常渲染
  • layout (triangles) in;
  • layout (line_strip, max_vertices = 6) out;
  • layout (location = 0) in vec3 inNormal[];
• FS: 正常渲染

小结

  几何着色器已经比较熟悉了, 这里注意一下Vulkan管线线宽的设置方法即可.

Viewport Arrays

prepare

• loadAssets：加载模型
• prepareUniformBuffers
  • createBuffer: GS
  • updateUniformBuffers
    • 这里设置两个视窗不用的MVP矩阵
• setupDescriptorSetLayout
  • vkCreateDescriptorSetLayout
  • vkCreatePipelineLayout
• preparePipelines
  - vkCreateGraphicsPipelines:
• setupDescriptorPool
  • vkCreateDescriptorPool
• setupDescriptorSet
  • vkAllocateDescriptorSets
  • writeDescriptorSet
  • vkUpdateDescriptorSets
• buildCommandBuffers
  • loop
    • vkBeginCommandBuffer
    • vkCmdBeginRenderPass
    • vkCmdSetViewport：这里set两个视图
    • vkCmdSetScissor：两个裁剪视窗
    • vkCmdSetLineWidth:设置线宽
    • vkCmdBindDescriptorSets
    • vkCmdBindPipeline
    • draw
    • drawUI
    • vkCmdEndRenderPass
    • vkEndCommandBuffer

render

• draw
  • prepareFrame
  • vkQueueSubmit
  • submitFrame

shader

• VS: 正常
• GS: 正常渲染
  • #extension GL_ARB_viewport_array : enable
    • 开启 viewport array
  • layout (triangles, invocations = 2) in;
    • invocations = 2 两次调用
  • gl_InvocationID
    • 本次调用的ID
  • main方法主要根据传入的MPV数组进行每个视窗的VS操作
• FS: 正常渲染

小结

  本节主要讲多视口渲染。注意一下vulkan多视窗的配置。以及GS多次调用的配置。