Getting no error in validation layer
Exception thrown at 0x79AFD88F (VkLayer_khronos_validation.dll) in ParticleSimulation.exe: 0xC0000005: Access violation reading location 0xCCCCCCCC.
I have tried finding what is uninitalized while running
I tried setting all pNext to nullptr and flags to 0
void ParticleSystem::PrepareGraphicsPipeline()
{
auto vertShaderModule = loadShader("Shaders/shader.vert.spv", m_Device);
auto fragShaderModule = loadShader("Shaders/shader.frag.spv", m_Device);
std::array<VkPipelineShaderStageCreateInfo,2> shaderStages;
shaderStages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStages[0].pNext = nullptr;
shaderStages[0].flags = 0;
shaderStages[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
shaderStages[0].pName = "main";
shaderStages[0].module = vertShaderModule;
shaderStages[0].pSpecializationInfo = nullptr;
shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStages[1].pNext = nullptr;
shaderStages[1].flags = 0;
shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
shaderStages[1].pName = "main";
shaderStages[1].module = fragShaderModule;
shaderStages[1].pSpecializationInfo = nullptr;
//VERTEX INPUT BINDING DESCRIPTION
vertices.bindingDescriptions.resize(1);
vertices.bindingDescriptions[0].binding = 0;
vertices.bindingDescriptions[0].stride = sizeof(Particle);
vertices.bindingDescriptions[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
//VERTEX ATTRIBUTE DESCRIPTION from the given binding
//(index at which vertex buffer is bind i.e from which binding to retrieve these attributes)
vertices.attributeDescriptions.resize(3);
// Position : Location = 0
vertices.attributeDescriptions[0].binding = 0;
vertices.attributeDescriptions[0].location = 0;
vertices.attributeDescriptions[0].format = VK_FORMAT_R32G32B32_SFLOAT;
vertices.attributeDescriptions[0].offset = 0;
// Color : Location = 1
vertices.attributeDescriptions[1].binding = 0;
vertices.attributeDescriptions[1].location = 1;
vertices.attributeDescriptions[1].format = VK_FORMAT_R32G32B32A32_SFLOAT;
vertices.attributeDescriptions[1].offset = 2 * sizeof(float);
// Velocity : Location = 2
vertices.attributeDescriptions[2].binding = 0;
vertices.attributeDescriptions[2].location = 2;
vertices.attributeDescriptions[2].format = VK_FORMAT_R32G32B32_SFLOAT;
vertices.attributeDescriptions[2].offset = 6 * sizeof(float);
// VERTEX INPUT STATE assigned to vertex buffer
vertices.inputState.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertices.inputState.pNext = nullptr;
vertices.inputState.flags = 0;
vertices.inputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertices.bindingDescriptions.size());
vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
vertices.inputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertices.attributeDescriptions.size());
vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateCreateInfo;
inputAssemblyStateCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
inputAssemblyStateCreateInfo.pNext = nullptr;
inputAssemblyStateCreateInfo.flags = 0;
inputAssemblyStateCreateInfo.topology = VK_PRIMITIVE_TOPOLOGY_POINT_LIST;
inputAssemblyStateCreateInfo.primitiveRestartEnable = VK_FALSE;
std::vector<VkViewport> viewPort;
viewPort.resize(1);
viewPort[0].x = 0.0f;
viewPort[0].y = 0.0f;
//kept Same as SwapChain ImageExtent
viewPort[0].width = (float)m_SwapChainExent.width;
viewPort[0].height = (float)m_SwapChainExent.height;
viewPort[0].minDepth = 0.0f;
viewPort[0].maxDepth = 1.0f;
std::vector<VkRect2D> scissor;
scissor.resize(viewPort.size());
scissor[0].offset = { 0,0 };
scissor[0].extent = m_SwapChainExent;
VkPipelineViewportStateCreateInfo viewPortState;
viewPortState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewPortState.pNext = nullptr;
viewPortState.flags = 0;
viewPortState.viewportCount = viewPort.size();
viewPortState.pViewports = viewPort.data();
viewPortState.scissorCount = scissor.size();
viewPortState.pScissors = scissor.data();
VkPipelineRasterizationStateCreateInfo rasterizationState;
rasterizationState.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rasterizationState.pNext = nullptr;
rasterizationState.flags = 0;
rasterizationState.depthClampEnable = VK_FALSE;
rasterizationState.rasterizerDiscardEnable = VK_FALSE;
rasterizationState.polygonMode = VK_POLYGON_MODE_FILL;
rasterizationState.lineWidth = 1.0f;
rasterizationState.cullMode = VK_CULL_MODE_NONE;
rasterizationState.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
rasterizationState.depthBiasEnable = VK_FALSE;
VkPipelineMultisampleStateCreateInfo multisampling;
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.pNext = nullptr;
multisampling.flags = 0;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPipelineColorBlendAttachmentState blendAttachmentState;
blendAttachmentState.colorWriteMask = 0xF;
blendAttachmentState.blendEnable = VK_TRUE;
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
VkPipelineColorBlendStateCreateInfo colorBlending;
colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
colorBlending.flags = 0;
colorBlending.pNext = nullptr;
colorBlending.logicOpEnable = VK_FALSE;
colorBlending.logicOp = VK_LOGIC_OP_COPY;
colorBlending.attachmentCount = 1;
colorBlending.pAttachments = &blendAttachmentState;
colorBlending.blendConstants[0] = 0.0f;
colorBlending.blendConstants[1] = 0.0f;
colorBlending.blendConstants[2] = 0.0f;
colorBlending.blendConstants[3] = 0.0f;
VkPipelineLayoutCreateInfo pipelineLayoutInfo;
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.pNext = nullptr;
pipelineLayoutInfo.flags = 0;
pipelineLayoutInfo.setLayoutCount = 0;
pipelineLayoutInfo.pSetLayouts = nullptr;
pipelineLayoutInfo.pushConstantRangeCount = 0;
pipelineLayoutInfo.pPushConstantRanges = nullptr;
if (vkCreatePipelineLayout(m_Device, &pipelineLayoutInfo, nullptr, &graphics.pipelineLayout) != VK_SUCCESS) {
throw std::runtime_error("failed to create GRAPHICS pipeline layout!");
}
VkGraphicsPipelineCreateInfo pipelineCreateInfo;
pipelineCreateInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCreateInfo.pNext = nullptr;
pipelineCreateInfo.flags = 0;
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyStateCreateInfo;
pipelineCreateInfo.pRasterizationState = &rasterizationState;
pipelineCreateInfo.pColorBlendState = &colorBlending;
pipelineCreateInfo.pMultisampleState = &multisampling;
pipelineCreateInfo.pViewportState = &viewPortState;
pipelineCreateInfo.pDynamicState = nullptr;
pipelineCreateInfo.pDepthStencilState = nullptr;
pipelineCreateInfo.pTessellationState = nullptr;
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineCreateInfo.pStages = shaderStages.data();
pipelineCreateInfo.layout = graphics.pipelineLayout;
pipelineCreateInfo.subpass = 0;
pipelineCreateInfo.renderPass = m_RenderPass;
pipelineCreateInfo.basePipelineIndex = -1;
pipelineCreateInfo.basePipelineHandle = VK_NULL_HANDLE;
Exception appears here
if ((vkCreateGraphicsPipelines(m_Device, VK_NULL_HANDLE, 1, &pipelineCreateInfo, nullptr, &graphics.pipeline)) != VK_SUCCESS) {
throw std::runtime_error("failed to create graphics pipeline!");
}
vkDestroyShaderModule(m_Device, fragShaderModule, nullptr);
vkDestroyShaderModule(m_Device, vertShaderModule, nullptr);
}
