private Instance CreateInstance()
{
using var appName = SilkMarshal.StringToMemory("Hello Cube");
using var engineName = SilkMarshal.StringToMemory("Custom Engine");
var appInfo = new ApplicationInfo
(
pApplicationName: (byte *)appName,
applicationVersion: new Version32(0, 0, 1),
pEngineName: (byte *)engineName,
engineVersion: new Version32(0, 0, 1),
apiVersion: Vk.Version11
);
List <string> extensions = new List <string>(GetWindowExtensions())
{
Debugging.DebugExtensionString
};
string[] layers = new string[] { "VK_LAYER_KHRONOS_validation" };
using var extList = SilkMarshal.StringArrayToMemory(extensions);
using var layerList = SilkMarshal.StringArrayToMemory(layers);
var instInfo = new InstanceCreateInfo(pApplicationInfo: &appInfo,
enabledLayerCount: (uint)layers.Length,
ppEnabledLayerNames: (byte **)layerList,
enabledExtensionCount: (uint)extensions.Count,
ppEnabledExtensionNames: (byte **)extList);
Instance inst;
var res = VkApi.CreateInstance(&instInfo, null, &inst);
if (res != Result.Success)
{
throw new VMASharp.VulkanResultException("Instance Creation Failed", res);
}
return(inst);
}
private Pipeline CreateGraphicsPipeline()
{
using var pName = SilkMarshal.StringToMemory("main");
var shaderStages = stackalloc PipelineShaderStageCreateInfo[2]
{
new PipelineShaderStageCreateInfo
{
SType = StructureType.PipelineShaderStageCreateInfo,
Stage = ShaderStageFlags.ShaderStageVertexBit,
Module = this.VertexShader,
PName = (byte *)pName
},
new PipelineShaderStageCreateInfo
{
SType = StructureType.PipelineShaderStageCreateInfo,
Stage = ShaderStageFlags.ShaderStageFragmentBit,
Module = this.FragmentShader,
PName = (byte *)pName
}
};
var dynamicStates = stackalloc DynamicState[2] {
DynamicState.Viewport, DynamicState.Scissor
};
PipelineDynamicStateCreateInfo dynamicState = new PipelineDynamicStateCreateInfo
{
SType = StructureType.PipelineDynamicStateCreateInfo,
DynamicStateCount = 2,
PDynamicStates = dynamicStates
};
var vertexBindings = stackalloc VertexInputBindingDescription[2]
{
new VertexInputBindingDescription(0, (uint)sizeof(PositionColorVertex), VertexInputRate.Vertex),
new VertexInputBindingDescription(1, (uint)sizeof(InstanceData), VertexInputRate.Instance)
};
var vertexAttributes = stackalloc VertexInputAttributeDescription[3]
{
new VertexInputAttributeDescription(0, 0, Format.R32G32B32Sfloat, 0),
new VertexInputAttributeDescription(1, 0, Format.R32G32B32Sfloat, (uint)sizeof(System.Numerics.Vector3)),
new VertexInputAttributeDescription(2, 1, Format.R32G32B32Sfloat, 0)
};
var vertexInputInfo = new PipelineVertexInputStateCreateInfo
{
SType = StructureType.PipelineVertexInputStateCreateInfo,
VertexBindingDescriptionCount = 2,
PVertexBindingDescriptions = vertexBindings,
VertexAttributeDescriptionCount = 3,
PVertexAttributeDescriptions = vertexAttributes
};
var inputAssembly = new PipelineInputAssemblyStateCreateInfo
{
SType = StructureType.PipelineInputAssemblyStateCreateInfo,
Topology = PrimitiveTopology.TriangleList,
PrimitiveRestartEnable = false
};
//Marked as dynamic state, will be specified in the command buffer
var viewportState = new PipelineViewportStateCreateInfo
{
SType = StructureType.PipelineViewportStateCreateInfo,
ViewportCount = 1,
ScissorCount = 1,
};
var rasterizer = new PipelineRasterizationStateCreateInfo
{
SType = StructureType.PipelineRasterizationStateCreateInfo,
DepthClampEnable = Vk.False,
RasterizerDiscardEnable = Vk.False,
PolygonMode = PolygonMode.Fill,
LineWidth = 1.0f,
CullMode = CullModeFlags.CullModeNone,
FrontFace = FrontFace.Clockwise,
DepthBiasEnable = Vk.False
};
var multisampling = new PipelineMultisampleStateCreateInfo
{
SType = StructureType.PipelineMultisampleStateCreateInfo,
SampleShadingEnable = false,
RasterizationSamples = SampleCountFlags.SampleCount1Bit
};
var colorBlendAttachment = new PipelineColorBlendAttachmentState
{
ColorWriteMask = ColorComponentFlags.ColorComponentRBit |
ColorComponentFlags.ColorComponentGBit |
ColorComponentFlags.ColorComponentBBit |
ColorComponentFlags.ColorComponentABit,
BlendEnable = Vk.False
};
var colorBlending = new PipelineColorBlendStateCreateInfo
{
SType = StructureType.PipelineColorBlendStateCreateInfo,
LogicOpEnable = Vk.False,
LogicOp = LogicOp.Copy,
AttachmentCount = 1,
PAttachments = &colorBlendAttachment
};
colorBlending.BlendConstants[0] = 0.0f;
colorBlending.BlendConstants[1] = 0.0f;
colorBlending.BlendConstants[2] = 0.0f;
colorBlending.BlendConstants[3] = 0.0f;
var depthState = new PipelineDepthStencilStateCreateInfo
{
SType = StructureType.PipelineDepthStencilStateCreateInfo,
DepthTestEnable = true,
DepthWriteEnable = true,
DepthCompareOp = CompareOp.LessOrEqual,
DepthBoundsTestEnable = false,
MinDepthBounds = 0,
MaxDepthBounds = 0,
StencilTestEnable = false,
Back =
{
FailOp = StencilOp.Keep,
PassOp = StencilOp.Keep,
CompareOp = CompareOp.Always,
CompareMask = 0,
Reference = 0,
DepthFailOp = StencilOp.Keep,
WriteMask = 0
}
};
depthState.Front = depthState.Back;
var pipelineInfo = new GraphicsPipelineCreateInfo
{
SType = StructureType.GraphicsPipelineCreateInfo,
StageCount = 2,
PStages = shaderStages,
PDynamicState = &dynamicState,
PDepthStencilState = &depthState,
PVertexInputState = &vertexInputInfo,
PInputAssemblyState = &inputAssembly,
PViewportState = &viewportState,
PRasterizationState = &rasterizer,
PMultisampleState = &multisampling,
PColorBlendState = &colorBlending,
Layout = this.GraphicsPipelineLayout,
RenderPass = RenderPass,
Subpass = 0,
BasePipelineHandle = default
};
Pipeline pipeline;
var res = VkApi.CreateGraphicsPipelines(Device, default, 1, &pipelineInfo, null, &pipeline);