public IrregularPentagon(IrregularPentagon parent, int number)
{
if (number < 0 || number > 4)
{
throw new ArgumentException($"Номер соседа должен быть в диапазоне [0;4], не {number}");
}
ModelMatrix = Matrix4x4.CreateTranslation(0, (float)R * 2, 0) *
Matrix4x4.CreateRotationZ((float)AngleBb) *
parent.ModelMatrix;
}
private static void CreateResources()
{
_instanceCount = 5;
ResourceFactory factory = _graphicsDevice.ResourceFactory;
_vertexBuffer = factory.CreateBuffer(
new BufferDescription(IrregularPentagon.VerticesCount * VertexPositionColor.SizeInBytes,
BufferUsage.VertexBuffer));
_indexBuffer = factory.CreateBuffer(
new BufferDescription(IrregularPentagon.IndicesCount * sizeof(ushort),
BufferUsage.IndexBuffer));
_projMatrixBuffer = factory.CreateBuffer(
new BufferDescription(sizeof(float) * 4 * 4,
BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_projMatrixBuffer.Name = "Projection Buffer";
_modelMatrixBuffer = factory.CreateBuffer(
new BufferDescription(sizeof(float) * 4 * 4,
BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_modelMatrixBuffer.Name = "Model Buffer";
_graphicsDevice.UpdateBuffer(_vertexBuffer, 0, IrregularPentagon.Vertices);
_graphicsDevice.UpdateBuffer(_indexBuffer, 0, IrregularPentagon.Indices);
ViewProjectionUpdate();
VertexLayoutDescription vertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate,
VertexElementFormat.Float2),
new VertexElementDescription("Color", VertexElementSemantic.TextureCoordinate,
VertexElementFormat.Float4));
_layout = factory.CreateResourceLayout(
new ResourceLayoutDescription(
new ResourceLayoutElementDescription("ViewProjectionMatrix", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("ModelMatrix", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
ShaderDescription vertexShaderDesc = new ShaderDescription(ShaderStages.Vertex,
Resources.VertexShader,
"main");
ShaderDescription fragmentShaderDesc = new ShaderDescription(ShaderStages.Fragment,
Resources.FragmentShader,
"main");
_shaders = factory.CreateFromSpirv(vertexShaderDesc, fragmentShaderDesc);
VertexLayoutDescription vertexLayoutPerInstance = new VertexLayoutDescription(
new VertexElementDescription("InstanceCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float1));
vertexLayoutPerInstance.InstanceStepRate = 1;
_instanceVB = factory.CreateBuffer(new BufferDescription(sizeof(float) * _instanceCount, BufferUsage.VertexBuffer));
float[] infos = new float[_instanceCount];
for (uint i = 0; i < _instanceCount; i++)
{
infos[i] = i / 0.1f;
}
_graphicsDevice.UpdateBuffer(_instanceVB, 0, infos);
GraphicsPipelineDescription pipelineDescription = new GraphicsPipelineDescription
{
BlendState = BlendStateDescription.SingleAlphaBlend,
DepthStencilState = new DepthStencilStateDescription(
true,
true,
ComparisonKind.LessEqual),
RasterizerState = new RasterizerStateDescription(
FaceCullMode.Back,
PolygonFillMode.Solid,
FrontFace.Clockwise,
true,
false),
PrimitiveTopology = PrimitiveTopology.TriangleStrip,
ResourceLayouts = new [] { _layout },
ShaderSet = new ShaderSetDescription(new[] { vertexLayout, vertexLayoutPerInstance }, _shaders),
Outputs = _graphicsDevice.MainSwapchain.Framebuffer.OutputDescription,
};
_pipeline = factory.CreateGraphicsPipeline(pipelineDescription);
_mainResourceSet = factory.CreateResourceSet(new ResourceSetDescription(_layout,
_projMatrixBuffer, _modelMatrixBuffer));
_commandList = factory.CreateCommandList();
var firstPentagon = new IrregularPentagon();
var secondPentagon = new IrregularPentagon(firstPentagon, 0);
_pentagons.Add(firstPentagon);
_pentagons.Add(secondPentagon);
}
