| [require] |
| VK_KHR_spirv_1_4 |
| tessellationShader |
| |
| [vertex shader] |
| #version 450 |
| |
| layout(location = 0) in vec4 position; |
| layout(location = 1) in vec4 vert_color; |
| layout(location = 0) out vec4 tsc_color; |
| |
| void main() { |
| gl_Position = position; |
| tsc_color = vert_color; |
| } |
| |
| [tessellation control shader] |
| #version 450 |
| #extension GL_ARB_separate_shader_objects : enable |
| |
| layout(vertices = 3) out; |
| |
| layout(location = 0) in vec4 tsc_color[]; |
| layout(location = 0) out vec4 tse_color[]; |
| |
| #define ID gl_InvocationID |
| |
| void main() |
| { |
| gl_out[ID].gl_Position = gl_in[ID].gl_Position; |
| tse_color[ID] = tsc_color[ID]; |
| gl_TessLevelOuter[0] = 1.0; |
| gl_TessLevelOuter[1] = 1.0; |
| gl_TessLevelOuter[2] = 1.0; |
| gl_TessLevelInner[0] = 1.0; |
| gl_TessLevelInner[1] = 1.0; |
| } |
| |
| [tessellation evaluation shader spirv] |
| ; Test tessellation evaluation shader with a push constant on the entry point. |
| ; #version 450 |
| ; #extension GL_ARB_separate_shader_objects : enable |
| ; |
| ; layout(triangles, equal_spacing, cw) in; |
| ; |
| ; layout(location = 0) in vec4 tse_color[]; |
| ; layout(location = 0) out vec4 frag_color; |
| ; |
| ; layout(push_constant) uniform pushConstants { |
| ; vec4 in_val; |
| ; } pc; |
| ; |
| ; void main() |
| ; { |
| ; vec4 p0 = gl_TessCoord.x * gl_in[0].gl_Position; |
| ; vec4 p1 = gl_TessCoord.y * gl_in[1].gl_Position; |
| ; vec4 p2 = gl_TessCoord.z * gl_in[2].gl_Position; |
| ; gl_Position = p0 + p1 + p2; |
| ; frag_color = tse_color[0]+pc.in_val; |
| ; } |
| OpCapability Tessellation |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint TessellationEvaluation %main "main" %gl_TessCoord %gl_in %_ %frag_color %tse_color %pc |
| OpExecutionMode %main Triangles |
| OpExecutionMode %main SpacingEqual |
| OpExecutionMode %main VertexOrderCw |
| OpSource GLSL 450 |
| OpSourceExtension "GL_ARB_separate_shader_objects" |
| OpName %main "main" |
| OpName %p0 "p0" |
| OpName %gl_TessCoord "gl_TessCoord" |
| OpName %gl_PerVertex "gl_PerVertex" |
| OpMemberName %gl_PerVertex 0 "gl_Position" |
| OpMemberName %gl_PerVertex 1 "gl_PointSize" |
| OpMemberName %gl_PerVertex 2 "gl_ClipDistance" |
| OpMemberName %gl_PerVertex 3 "gl_CullDistance" |
| OpName %gl_in "gl_in" |
| OpName %p1 "p1" |
| OpName %p2 "p2" |
| OpName %gl_PerVertex_0 "gl_PerVertex" |
| OpMemberName %gl_PerVertex_0 0 "gl_Position" |
| OpMemberName %gl_PerVertex_0 1 "gl_PointSize" |
| OpMemberName %gl_PerVertex_0 2 "gl_ClipDistance" |
| OpMemberName %gl_PerVertex_0 3 "gl_CullDistance" |
| OpName %_ "" |
| OpName %frag_color "frag_color" |
| OpName %tse_color "tse_color" |
| OpName %pushConstants "pushConstants" |
| OpMemberName %pushConstants 0 "in_val" |
| OpName %pc "pc" |
| OpDecorate %gl_TessCoord BuiltIn TessCoord |
| OpMemberDecorate %gl_PerVertex 0 BuiltIn Position |
| OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize |
| OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance |
| OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance |
| OpDecorate %gl_PerVertex Block |
| OpMemberDecorate %gl_PerVertex_0 0 BuiltIn Position |
| OpMemberDecorate %gl_PerVertex_0 1 BuiltIn PointSize |
| OpMemberDecorate %gl_PerVertex_0 2 BuiltIn ClipDistance |
| OpMemberDecorate %gl_PerVertex_0 3 BuiltIn CullDistance |
| OpDecorate %gl_PerVertex_0 Block |
| OpDecorate %frag_color Location 0 |
| OpDecorate %tse_color Location 0 |
| OpMemberDecorate %pushConstants 0 Offset 0 |
| OpDecorate %pushConstants Block |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %v4float = OpTypeVector %float 4 |
| %_ptr_Function_v4float = OpTypePointer Function %v4float |
| %v3float = OpTypeVector %float 3 |
| %_ptr_Input_v3float = OpTypePointer Input %v3float |
| %gl_TessCoord = OpVariable %_ptr_Input_v3float Input |
| %uint = OpTypeInt 32 0 |
| %uint_0 = OpConstant %uint 0 |
| %_ptr_Input_float = OpTypePointer Input %float |
| %uint_1 = OpConstant %uint 1 |
| %_arr_float_uint_1 = OpTypeArray %float %uint_1 |
| %gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 |
| %uint_32 = OpConstant %uint 32 |
| %_arr_gl_PerVertex_uint_32 = OpTypeArray %gl_PerVertex %uint_32 |
| %_ptr_Input__arr_gl_PerVertex_uint_32 = OpTypePointer Input %_arr_gl_PerVertex_uint_32 |
| %gl_in = OpVariable %_ptr_Input__arr_gl_PerVertex_uint_32 Input |
| %int = OpTypeInt 32 1 |
| %int_0 = OpConstant %int 0 |
| %_ptr_Input_v4float = OpTypePointer Input %v4float |
| %int_1 = OpConstant %int 1 |
| %uint_2 = OpConstant %uint 2 |
| %int_2 = OpConstant %int 2 |
| %gl_PerVertex_0 = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1 |
| %_ptr_Output_gl_PerVertex_0 = OpTypePointer Output %gl_PerVertex_0 |
| %_ = OpVariable %_ptr_Output_gl_PerVertex_0 Output |
| %_ptr_Output_v4float = OpTypePointer Output %v4float |
| %frag_color = OpVariable %_ptr_Output_v4float Output |
| %_arr_v4float_uint_32 = OpTypeArray %v4float %uint_32 |
| %_ptr_Input__arr_v4float_uint_32 = OpTypePointer Input %_arr_v4float_uint_32 |
| %tse_color = OpVariable %_ptr_Input__arr_v4float_uint_32 Input |
| %pushConstants = OpTypeStruct %v4float |
| %_ptr_PushConstant_pushConstants = OpTypePointer PushConstant %pushConstants |
| %pc = OpVariable %_ptr_PushConstant_pushConstants PushConstant |
| %_ptr_PushConstant_v4float = OpTypePointer PushConstant %v4float |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| %p0 = OpVariable %_ptr_Function_v4float Function |
| %p1 = OpVariable %_ptr_Function_v4float Function |
| %p2 = OpVariable %_ptr_Function_v4float Function |
| %16 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_0 |
| %17 = OpLoad %float %16 |
| %28 = OpAccessChain %_ptr_Input_v4float %gl_in %int_0 %int_0 |
| %29 = OpLoad %v4float %28 |
| %30 = OpVectorTimesScalar %v4float %29 %17 |
| OpStore %p0 %30 |
| %32 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_1 |
| %33 = OpLoad %float %32 |
| %35 = OpAccessChain %_ptr_Input_v4float %gl_in %int_1 %int_0 |
| %36 = OpLoad %v4float %35 |
| %37 = OpVectorTimesScalar %v4float %36 %33 |
| OpStore %p1 %37 |
| %40 = OpAccessChain %_ptr_Input_float %gl_TessCoord %uint_2 |
| %41 = OpLoad %float %40 |
| %43 = OpAccessChain %_ptr_Input_v4float %gl_in %int_2 %int_0 |
| %44 = OpLoad %v4float %43 |
| %45 = OpVectorTimesScalar %v4float %44 %41 |
| OpStore %p2 %45 |
| %49 = OpLoad %v4float %p0 |
| %50 = OpLoad %v4float %p1 |
| %51 = OpFAdd %v4float %49 %50 |
| %52 = OpLoad %v4float %p2 |
| %53 = OpFAdd %v4float %51 %52 |
| %55 = OpAccessChain %_ptr_Output_v4float %_ %int_0 |
| OpStore %55 %53 |
| %60 = OpAccessChain %_ptr_Input_v4float %tse_color %int_0 |
| %61 = OpLoad %v4float %60 |
| %66 = OpAccessChain %_ptr_PushConstant_v4float %pc %int_0 |
| %67 = OpLoad %v4float %66 |
| %68 = OpFAdd %v4float %61 %67 |
| OpStore %frag_color %68 |
| OpReturn |
| OpFunctionEnd |
| |
| [fragment shader] |
| #version 450 |
| |
| layout(location = 0) in vec4 frag_color; |
| layout(location = 0) out vec4 final_color; |
| |
| void main() { |
| final_color = frag_color; |
| } |
| |
| [vertex data] |
| # position vert_color |
| 0/R8G8_SNORM 1/R8G8B8A8_UNORM |
| |
| # Red for entire frame |
| # R8 G8 R8 G8 B8 A8 |
| -128 -128 255 0 0 255 |
| 127 127 255 0 0 255 |
| -128 127 255 0 0 255 |
| |
| -128 -128 255 0 0 255 |
| 127 127 255 0 0 255 |
| 127 -128 255 0 0 255 |
| |
| [test] |
| uniform float 0 0.0 0.0 0.3 0.0 |
| clear |
| draw arrays PATCH_LIST 0 6 |
| relative probe rect rgb (0.0, 0.0, 1.0, 1.0) (1.0, 0, 0.3) |
