clara/bluenoise-raytracer
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Improving updateUniformBuffer and search paths

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This commit is contained in:
mklefrancois 2020-11-24 16:31:21 +01:00
parent 9dc142760f
commit 0bac428ad5
40 changed files with 458 additions and 363 deletions
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17
ray_tracing__before/hello_vulkan.cpp
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@ -69,7 +69,7 @@ void HelloVulkan::setup(const vk::Instance& instance,
//--------------------------------------------------------------------------------------------------
// Called at each frame to update the camera matrix
//
void HelloVulkan::updateUniformBuffer()
void HelloVulkan::updateUniformBuffer(const vk::CommandBuffer& cmdBuf)
{
const float aspectRatio = m_size.width / static_cast<float>(m_size.height);
@ -78,9 +78,14 @@ void HelloVulkan::updateUniformBuffer()
ubo.proj = nvmath::perspectiveVK(CameraManip.getFov(), aspectRatio, 0.1f, 1000.0f);
//ubo.proj[1][1] *= -1; // Inverting Y for Vulkan
ubo.viewInverse = nvmath::invert(ubo.view);
void* data = m_device.mapMemory(m_cameraMat.allocation, 0, sizeof(ubo));
memcpy(data, &ubo, sizeof(ubo));
m_device.unmapMemory(m_cameraMat.allocation);
cmdBuf.updateBuffer<CameraMatrices>(m_cameraMat.buffer, 0, ubo);
// Making sure the matrix buffer will be available
vk::MemoryBarrier mb{vk::AccessFlagBits::eTransferWrite, vk::AccessFlagBits::eShaderRead};
cmdBuf.pipelineBarrier(vk::PipelineStageFlagBits::eTransfer,
vk::PipelineStageFlagBits::eVertexShader,
vk::DependencyFlagBits::eDeviceGroup, {mb}, {}, {});
}
//--------------------------------------------------------------------------------------------------
@ -248,8 +253,8 @@ void HelloVulkan::createUniformBuffer()
using vkBU = vk::BufferUsageFlagBits;
using vkMP = vk::MemoryPropertyFlagBits;
m_cameraMat = m_alloc.createBuffer(sizeof(CameraMatrices), vkBU::eUniformBuffer,
vkMP::eHostVisible | vkMP::eHostCoherent);
m_cameraMat = m_alloc.createBuffer(sizeof(CameraMatrices),
vkBU::eUniformBuffer | vkBU::eTransferDst, vkMP::eDeviceLocal);
m_debug.setObjectName(m_cameraMat.buffer, "cameraMat");
}