public GraphicsSystem(OpenTKWindow window, float renderQuality = 1f, GraphicsBackEndPreference backEndPreference = GraphicsBackEndPreference.None)
{
if (window == null)
{
throw new ArgumentNullException(nameof(window));
}
bool preferOpenGL = backEndPreference == GraphicsBackEndPreference.OpenGL || !RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
_window = window;
Context = CreatePlatformDefaultContext(window, preferOpenGL);
Context.ResourceFactory.AddShaderLoader(new EmbeddedResourceShaderLoader(typeof(GraphicsSystem).GetTypeInfo().Assembly));
MaterialCache = new MaterialCache(this);
BufferCache = new BufferCache(this);
ShadowMapStage = new ShadowMapStage(Context);
_upscaleStage = new UpscaleStage(Context, "Upscale", null, null);
_standardStage = new StandardPipelineStage(Context, "Standard");
_alphaBlendStage = new StandardPipelineStage(Context, "AlphaBlend");
_alphaBlendStage.Comparer = new FarToNearIndexComparer();
_overlayStage = new StandardPipelineStage(Context, "Overlay");
_pipelineStages = new PipelineStage[]
{
ShadowMapStage,
_standardStage,
_alphaBlendStage,
_upscaleStage,
_overlayStage,
};
_renderer = new Renderer(Context, _pipelineStages);
SetPreupscaleQuality(renderQuality);
// Placeholder providers so that materials can bind to them.
Context.RegisterGlobalDataProvider("ViewMatrix", s_identityProvider);
Context.RegisterGlobalDataProvider("ProjectionMatrix", s_identityProvider);
Context.RegisterGlobalDataProvider("CameraInfo", s_noCameraProvider);
Context.RegisterGlobalDataProvider("LightBuffer", s_noLightProvider);
Context.RegisterGlobalDataProvider("PointLights", _pointLightsProvider);
window.Resized += OnWindowResized;
_freeShapeRenderer = new ManualWireframeRenderer(Context, RgbaFloat.Pink);
_freeShapeRenderer.Topology = PrimitiveTopology.LineList;
AddFreeRenderItem(_freeShapeRenderer);
_mainThreadID = Environment.CurrentManagedThreadId;
_taskScheduler = new GraphicsSystemTaskScheduler(_mainThreadID);
_rayCastFilterFunc = RayCastFilter;
}
public PreviewScene(RenderContext rc, ConstructedMeshInfo previewItem)
{
_rc = rc;
ResourceFactory factory = rc.ResourceFactory;
_fb = factory.CreateFramebuffer(Width, Height);
_projection = factory.CreateConstantBuffer(ShaderConstantType.Matrix4x4);
UpdateProjectionData();
_view = factory.CreateConstantBuffer(ShaderConstantType.Matrix4x4);
_view.SetData(Matrix4x4.CreateLookAt(Vector3.UnitZ * 7f + Vector3.UnitY * 1.5f, Vector3.Zero, Vector3.UnitY));
_lightProjection = factory.CreateConstantBuffer(ShaderConstantType.Matrix4x4);
_lightProjection.SetData(Matrix4x4.CreateOrthographicOffCenter(-18, 18, -18, 18, -10, 60f));
_lightView = factory.CreateConstantBuffer(ShaderConstantType.Matrix4x4);
_lightView.SetData(Matrix4x4.CreateLookAt(-_lightDirection * 20f, Vector3.Zero, Vector3.UnitY));
_lightInfo = factory.CreateConstantBuffer(ShaderConstantType.Float4);
_lightInfo.SetData(new Vector4(_lightDirection, 1));
_standardPipelineStage = new StandardPipelineStage(rc, "Standard", _fb);
_shadowMapStage = new ShadowMapStage(rc, "ShadowMap_Preview");
_stages = new PipelineStage[]
{
_shadowMapStage,
_standardPipelineStage,
};
SceneBuffers.Add("ProjectionMatrix", _projection);
SceneBuffers.Add("ViewMatrix", _view);
SceneBuffers.Add("LightProjMatrix", _lightProjection);
SceneBuffers.Add("LightViewMatrix", _lightView);
SceneBuffers.Add("LightInfo", _lightInfo);
_floor = CreatePreviewModel(PlaneModel.Vertices, PlaneModel.Indices);
_floor.WorldMatrix.Data = Matrix4x4.CreateScale(10f, 1f, 10f);
_previewItem = CreatePreviewModel(previewItem.Vertices, previewItem.Indices);
_previewItem.WorldMatrix.Data = Matrix4x4.CreateTranslation(0, 1.5f, 0);
_visiblityManager = new FlatListVisibilityManager();
_visiblityManager.AddRenderItem(_floor);
_visiblityManager.AddRenderItem(_previewItem);
}
