Test/spv.meshShaderPerViewBuiltins.mesh

   1 #version 450
   2
   3 #define MAX_VER  81
   4 #define MAX_PRIM 32
   5 #define MAX_VIEWS gl_MaxMeshViewCountNV
   6
   7 #define BARRIER() \
   8     memoryBarrierShared(); \
   9     barrier();
  10
  11 #extension GL_NV_mesh_shader : enable
  12
  13 layout(local_size_x = 32) in;
  14
  15 layout(max_vertices=MAX_VER) out;
  16 layout(max_primitives=MAX_PRIM) out;
  17 layout(triangles) out;
  18
  19 // test use of per-view builtin attributes
  20
  21 void main()
  22 {
  23     uint iid = gl_LocalInvocationID.x;
  24     uint viewID = gl_MeshViewIndicesNV[gl_MeshViewCountNV%MAX_VIEWS];
  25
  26     gl_MeshVerticesNV[iid].gl_PositionPerViewNV[viewID]          = vec4(1.0, 2.0, 3.0, 4.0);
  27     gl_MeshVerticesNV[iid].gl_ClipDistancePerViewNV[viewID][2]   = 5.0;
  28     gl_MeshVerticesNV[iid].gl_CullDistancePerViewNV[viewID][3]   = 6.0;
  29     gl_MeshPrimitivesNV[iid].gl_LayerPerViewNV[viewID]           = 7;
  30     gl_MeshPrimitivesNV[iid].gl_ViewportMaskPerViewNV[viewID][0] = 8;
  31
  32     BARRIER();
  33
  34     gl_MeshVerticesNV[iid+1].gl_PositionPerViewNV[viewID]          = gl_MeshVerticesNV[iid].gl_PositionPerViewNV[viewID];
  35     gl_MeshVerticesNV[iid+1].gl_ClipDistancePerViewNV[viewID][2]   = gl_MeshVerticesNV[iid].gl_ClipDistancePerViewNV[viewID][2];
  36     gl_MeshVerticesNV[iid+1].gl_CullDistancePerViewNV[viewID][3]   = gl_MeshVerticesNV[iid].gl_CullDistancePerViewNV[viewID][3];
  37     gl_MeshPrimitivesNV[iid+1].gl_LayerPerViewNV[viewID]           = gl_MeshPrimitivesNV[iid].gl_LayerPerViewNV[viewID];
  38     gl_MeshPrimitivesNV[iid+1].gl_ViewportMaskPerViewNV[viewID][0] = gl_MeshPrimitivesNV[iid].gl_ViewportMaskPerViewNV[viewID][0];
  39
  40     BARRIER();
  41 }
  42