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Fix mesh output when tessellation is active

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* We don't want to have any other shader stages than vertex shader
  active really. It's enough to run the vertex shader, fetch output, and
  stop. Other stages active imposes more requirements (like tessellation
  has to happen with patch list types not point lists, etc).
This commit is contained in:
baldurk
2016-06-02 16:59:25 +02:00
parent 8107adcf9e
commit 61ae6893f8
1 changed files with 20 additions and 0 deletions
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renderdoc/driver/vulkan/vk_debug.cpp
+20
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@@ -5269,6 +5269,26 @@ void VulkanDebugManager::InitPostVSBuffers(uint32_t eventID)
ia->topology = VK_PRIMITIVE_TOPOLOGY_POINT_LIST;
// remove all stages but the vertex shader, we just want to run it and write the data,
// we don't want to tessellate/geometry shade, nor rasterize (which we disable below)
uint32_t vertIdx = pipeCreateInfo.stageCount;
for(uint32_t i = 0; i < pipeCreateInfo.stageCount; i++)
{
if(pipeCreateInfo.pStages[i].stage & VK_SHADER_STAGE_VERTEX_BIT)
{
vertIdx = i;
break;
}
}
RDCASSERT(vertIdx < pipeCreateInfo.stageCount);
if(vertIdx != 0)
(VkPipelineShaderStageCreateInfo &)pipeCreateInfo.pStages[0] = pipeCreateInfo.pStages[vertIdx];
pipeCreateInfo.stageCount = 1;
// enable rasterizer discard
VkPipelineRasterizationStateCreateInfo *rs =
(VkPipelineRasterizationStateCreateInfo *)pipeCreateInfo.pRasterizationState;