tessellation

[WdsPjm]

Does VSG currently support tessellation shaders?

[robertosfield]

Yes, you just need to set the vsg::ShadreModel::stage parameter to the appropriate state:

https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkShaderStageFlagBits.html

// Provided by VK_VERSION_1_0
typedef enum VkShaderStageFlagBits {
    VK_SHADER_STAGE_VERTEX_BIT = 0x00000001,
    VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT = 0x00000002,
    VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT = 0x00000004,
    VK_SHADER_STAGE_GEOMETRY_BIT = 0x00000008,
    VK_SHADER_STAGE_FRAGMENT_BIT = 0x00000010,
    VK_SHADER_STAGE_COMPUTE_BIT = 0x00000020,
    VK_SHADER_STAGE_ALL_GRAPHICS = 0x0000001F,
    VK_SHADER_STAGE_ALL = 0x7FFFFFFF,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_RAYGEN_BIT_KHR = 0x00000100,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_ANY_HIT_BIT_KHR = 0x00000200,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_CLOSEST_HIT_BIT_KHR = 0x00000400,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_MISS_BIT_KHR = 0x00000800,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_INTERSECTION_BIT_KHR = 0x00001000,
  // Provided by VK_KHR_ray_tracing_pipeline
    VK_SHADER_STAGE_CALLABLE_BIT_KHR = 0x00002000,
  // Provided by VK_EXT_mesh_shader
    VK_SHADER_STAGE_TASK_BIT_EXT = 0x00000040,
  // Provided by VK_EXT_mesh_shader
    VK_SHADER_STAGE_MESH_BIT_EXT = 0x00000080,
  // Provided by VK_HUAWEI_subpass_shading
    VK_SHADER_STAGE_SUBPASS_SHADING_BIT_HUAWEI = 0x00004000,
  // Provided by VK_HUAWEI_cluster_culling_shader
    VK_SHADER_STAGE_CLUSTER_CULLING_BIT_HUAWEI = 0x00080000,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_RAYGEN_BIT_NV = VK_SHADER_STAGE_RAYGEN_BIT_KHR,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_ANY_HIT_BIT_NV = VK_SHADER_STAGE_ANY_HIT_BIT_KHR,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_CLOSEST_HIT_BIT_NV = VK_SHADER_STAGE_CLOSEST_HIT_BIT_KHR,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_MISS_BIT_NV = VK_SHADER_STAGE_MISS_BIT_KHR,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_INTERSECTION_BIT_NV = VK_SHADER_STAGE_INTERSECTION_BIT_KHR,
  // Provided by VK_NV_ray_tracing
    VK_SHADER_STAGE_CALLABLE_BIT_NV = VK_SHADER_STAGE_CALLABLE_BIT_KHR,
  // Provided by VK_NV_mesh_shader
    VK_SHADER_STAGE_TASK_BIT_NV = VK_SHADER_STAGE_TASK_BIT_EXT,
  // Provided by VK_NV_mesh_shader
    VK_SHADER_STAGE_MESH_BIT_NV = VK_SHADER_STAGE_MESH_BIT_EXT,
} VkShaderStageFlagBits;