private void Draw()
{
int ticks = Environment.TickCount;
_cl.Begin();
_cl.UpdateBuffer(_projectionBuffer, 0, Matrix4x4.CreatePerspectiveFieldOfView(
1.0f,
(float)_window.Width / _window.Height,
0.5f,
100f));
_cl.UpdateBuffer(_viewBuffer, 0, Matrix4x4.CreateLookAt(Vector3.UnitZ * 2.5f, Vector3.Zero, Vector3.UnitY));
Matrix4x4 rotation =
Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, (ticks / 1000f))
* Matrix4x4.CreateFromAxisAngle(Vector3.UnitX, (ticks / 3000f));
_cl.UpdateBuffer(_worldBuffer, 0, ref rotation);
_cl.SetFramebuffer(_gd.SwapchainFramebuffer);
_cl.SetFullViewports();
_cl.ClearColorTarget(0, RgbaFloat.Black);
_cl.ClearDepthTarget(1f);
_cl.SetPipeline(_pipeline);
_cl.SetVertexBuffer(0, _vertexBuffer);
_cl.SetIndexBuffer(_indexBuffer, IndexFormat.UInt16);
_cl.SetGraphicsResourceSet(0, _projViewSet);
_cl.SetGraphicsResourceSet(1, _worldTextureSet);
_cl.DrawIndexed(36, 1, 0, 0, 0);
_cl.End();
_gd.ExecuteCommands(_cl);
_gd.SwapBuffers();
}
private static void Draw()
{
// Begin() must be called before commands can be issued.
_commandList.Begin();
// We want to render directly to the output window.
_commandList.SetFramebuffer(_graphicsDevice.SwapchainFramebuffer);
_commandList.SetFullViewports();
_commandList.ClearColorTarget(0, RgbaFloat.Black);
_commandList.ClearDepthTarget(1);
// Set all relevant state to draw our quad.
_commandList.SetVertexBuffer(0, _vertexBuffer);
_commandList.SetIndexBuffer(_indexBuffer, IndexFormat.UInt16);
_commandList.SetPipeline(_pipeline);
// Issue a Draw command for a single instance with 4 indices.
_commandList.DrawIndexed(
indexCount: 4,
instanceCount: 1,
indexStart: 0,
vertexOffset: 0,
instanceStart: 0);
// End() must be called before commands can be submitted for execution.
_commandList.End();
_graphicsDevice.ExecuteCommands(_commandList);
// Once commands have been submitted, the rendered image can be presented to the application window.
_graphicsDevice.SwapBuffers();
}
private void RenderAllSingleThread(GraphicsDevice gd, CommandList cl, SceneContext sc)
{
Matrix4x4 cameraProj = Camera.ProjectionMatrix;
Vector4 nearLimitCS = Vector4.Transform(new Vector3(0, 0, -_nearCascadeLimit), cameraProj);
Vector4 midLimitCS = Vector4.Transform(new Vector3(0, 0, -_midCascadeLimit), cameraProj);
Vector4 farLimitCS = Vector4.Transform(new Vector3(0, 0, -_farCascadeLimit), cameraProj);
cl.UpdateBuffer(sc.DepthLimitsBuffer, 0, new DepthCascadeLimits
{
NearLimit = nearLimitCS.Z,
MidLimit = midLimitCS.Z,
FarLimit = farLimitCS.Z
});
cl.UpdateBuffer(sc.LightInfoBuffer, 0, sc.DirectionalLight.GetInfo());
// Near
Matrix4x4 viewProj0 = UpdateDirectionalLightMatrices(
sc,
Camera.NearDistance,
_nearCascadeLimit,
sc.NearShadowMapTexture.Width,
out BoundingFrustum lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer0, 0, ref viewProj0);
cl.SetFramebuffer(sc.NearShadowMapFramebuffer);
cl.SetViewport(0, new Viewport(0, 0, sc.NearShadowMapTexture.Width, sc.NearShadowMapTexture.Height, 0, 1));
cl.SetScissorRect(0, 0, 0, sc.NearShadowMapTexture.Width, sc.NearShadowMapTexture.Height);
cl.ClearDepthTarget(01f);
Render(gd, cl, sc, RenderPasses.ShadowMapNear, lightFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
// Mid
Matrix4x4 viewProj1 = UpdateDirectionalLightMatrices(
sc,
_nearCascadeLimit,
_midCascadeLimit,
sc.MidShadowMapTexture.Width,
out lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer1, 0, ref viewProj1);
cl.SetFramebuffer(sc.MidShadowMapFramebuffer);
cl.SetViewport(0, new Viewport(0, 0, sc.MidShadowMapTexture.Width, sc.MidShadowMapTexture.Height, 0, 1));
cl.SetScissorRect(0, 0, 0, sc.MidShadowMapTexture.Width, sc.MidShadowMapTexture.Height);
cl.ClearDepthTarget(1f);
Render(gd, cl, sc, RenderPasses.ShadowMapMid, lightFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
// Far
Matrix4x4 viewProj2 = UpdateDirectionalLightMatrices(
sc,
_midCascadeLimit,
_farCascadeLimit,
sc.FarShadowMapTexture.Width,
out lightFrustum);
cl.UpdateBuffer(sc.LightViewProjectionBuffer2, 0, ref viewProj2);
cl.SetFramebuffer(sc.FarShadowMapFramebuffer);
cl.SetViewport(0, new Viewport(0, 0, sc.FarShadowMapTexture.Width, sc.FarShadowMapTexture.Height, 0, 1));
cl.SetScissorRect(0, 0, 0, sc.FarShadowMapTexture.Width, sc.FarShadowMapTexture.Height);
cl.ClearDepthTarget(1f);
Render(gd, cl, sc, RenderPasses.ShadowMapFar, lightFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
cl.SetFramebuffer(gd.SwapchainFramebuffer);
float scWidth = gd.SwapchainFramebuffer.Width;
float scHeight = gd.SwapchainFramebuffer.Height;
cl.SetViewport(0, new Viewport(0, 0, scWidth, scHeight, 0, 1));
cl.SetScissorRect(0, 0, 0, (uint)scWidth, (uint)scHeight);
cl.ClearColorTarget(0, RgbaFloat.CornflowerBlue);
cl.ClearDepthTarget(1f);
BoundingFrustum cameraFrustum = new BoundingFrustum(_camera.ViewMatrix * _camera.ProjectionMatrix);
Render(gd, cl, sc, RenderPasses.Standard, cameraFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
Render(gd, cl, sc, RenderPasses.AlphaBlend, cameraFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
Render(gd, cl, sc, RenderPasses.Overlay, cameraFrustum, _renderQueues[0], _cullableStage[0], _renderableStage[0], null, false);
_resourceUpdateCL.Begin();
foreach (Renderable renderable in _allPerFrameRenderablesSet)
{
renderable.UpdatePerFrameResources(gd, _resourceUpdateCL, sc);
}
_resourceUpdateCL.End();
gd.ExecuteCommands(_resourceUpdateCL);
}
