protected override void DrawCore(RenderContext context, RenderDrawContext drawContext)
{
var graphicsDevice = drawContext.GraphicsDevice;
var graphicsContext = drawContext.GraphicsContext;
var commandList = drawContext.GraphicsContext.CommandList;
myCustomShader.UpdateEffect(graphicsDevice);
var normal = new Vector3(1, 0, 0);
VertexBuffer = Buffer.New(graphicsDevice, new[] { new VertexPositionNormalColor(new Vector3(-0.5f, -0.5f, 0.5f), normal, Color.Red), new VertexPositionNormalColor(new Vector3(0, 0.4f, -0.5f), normal, Color.Red), new VertexPositionNormalColor(new Vector3(10, 10f, 0f), normal, Color.Red), }, BufferFlags.VertexBuffer, GraphicsResourceUsage.Immutable);
drawContext.CommandList.Clear(drawContext.CommandList.RenderTarget, Color.Green);
drawContext.CommandList.Clear(drawContext.CommandList.DepthStencilBuffer, DepthStencilClearOptions.DepthBuffer);
myCustomShader.Parameters.Set(TransformationKeys.WorldViewProjection, WorldMatrix);
myCustomShader.Parameters.Set(test_shader1Keys.Color, Color.Red);
pipelineState.State.RootSignature = myCustomShader.RootSignature;
pipelineState.State.EffectBytecode = myCustomShader.Effect.Bytecode;
pipelineState.State.Output.CaptureState(commandList);
pipelineState.Update();
;
commandList.SetPipelineState(pipelineState.CurrentState);
myCustomShader.Apply(graphicsContext);
commandList.SetVertexBuffer(0, VertexBuffer, 0, VertexDeclaration.VertexStride);
commandList.Draw(3);
}
public override void Draw(RenderDrawContext context, RenderView renderView, RenderViewStage renderViewStage, int startIndex, int endIndex)
{
// First do everything that doesn't change per individual render object
var graphicsDevice = context.GraphicsDevice;
var graphicsContext = context.GraphicsContext;
var commandList = context.GraphicsContext.CommandList;
// Refresh shader, might have changed during runtime
myCustomShader.UpdateEffect(graphicsDevice);
// Set common shader parameters if needed
//myCustomShader.Parameters.Set(TransformationKeys.ViewProjection, renderView.ViewProjection);
for (int index = startIndex; index < endIndex; index++)
{
var renderNodeReference = renderViewStage.SortedRenderNodes[index].RenderNode;
var renderNode = GetRenderNode(renderNodeReference);
var myRenderObject = (MyRenderObject)renderNode.RenderObject;
if (myRenderObject.VertexBuffer == null)
{
continue; //next render object
}
// Assign shader parameters
myCustomShader.Parameters.Set(TransformationKeys.WorldViewProjection, myRenderObject.WorldMatrix * renderView.ViewProjection);
myCustomShader.Parameters.Set(TexturingKeys.Texture0, myRenderObject.Texture);
myCustomShader.Parameters.Set(MyCustomShaderKeys.TextureScale, myRenderObject.TextureScale);
myCustomShader.Parameters.Set(MyCustomShaderKeys.Color, myRenderObject.Color);
// Prepare pipeline state
pipelineState.State.RootSignature = myCustomShader.RootSignature;
pipelineState.State.EffectBytecode = myCustomShader.Effect.Bytecode;
pipelineState.State.Output.CaptureState(commandList);
pipelineState.Update();
commandList.SetPipelineState(pipelineState.CurrentState);
// Apply the effect
myCustomShader.Apply(graphicsContext);
// Set vertex buffer and draw
commandList.SetVertexBuffer(0, myRenderObject.VertexBuffer, 0, MyRenderObject.VertexDeclaration.VertexStride);
commandList.Draw(MyRenderObject.VertexCount, 0);
}
}
void ILowLevelAPIRender.Draw(RenderContext renderContext, RenderDrawContext drawContext, RenderView renderView, RenderViewStage renderViewStage, CommandList commandList)
{
if (!enabledPin.Value)
{
return;
}
try
{
var pipelineState = this.pipelineState ?? (this.pipelineState = new MutablePipelineState(renderContext.GraphicsDevice));
// TODO1: PerFrame could be done in Update if we'd have access to frame time
// TODO2: This code can be optimized by using parameter accessors and not parameter keys
parameters.SetPerFrameParameters(perFrameParams, drawContext.RenderContext);
parameters.SetPerViewParameters(perViewParams, renderView);
if (worldPin != null)
{
var world = worldPin.ShaderValue;
parameters.SetPerDrawParameters(perDrawParams, renderView, ref world);
}
// Set permutation parameters before updating the effect (needed by compiler)
parameters.Set(ComputeEffectShaderKeys.ThreadNumbers, threadNumbersPin.Value);
// Give user chance to override
parameterSetterPin?.Value.Invoke(parameters, renderView, drawContext);
if (instance.UpdateEffect(renderContext.GraphicsDevice) || pipelineStateDirty)
{
threadGroupCountAccessor = parameters.GetAccessor(ComputeShaderBaseKeys.ThreadGroupCountGlobal);
foreach (var p in Inputs.OfType <ParameterPin>())
{
p.Update(parameters);
}
pipelineState.State.SetDefaults();
pipelineState.State.RootSignature = instance.RootSignature;
pipelineState.State.EffectBytecode = instance.Effect.Bytecode;
pipelineState.Update();
pipelineStateDirty = false;
}
// Apply pipeline state
commandList.SetPipelineState(pipelineState.CurrentState);
// Set thread group count as provided by input pin
var threadGroupCount = dispatchCountPin.Value;
parameters.Set(ComputeShaderBaseKeys.ThreadGroupCountGlobal, threadGroupCount);
// TODO: This can be optimized by uploading only parameters from the PerDispatch groups - look in Xenkos RootEffectRenderFeature
var iterationCount = Math.Max(iterationCountPin.Value, 1);
for (int i = 0; i < iterationCount; i++)
{
// Give user chance to override
iterationParameterSetterPin.Value?.Invoke(parameters, renderView, drawContext, i);
// The thread group count can be set for each dispatch
threadGroupCount = parameters.Get(threadGroupCountAccessor);
// Upload the parameters
instance.Apply(drawContext.GraphicsContext);
// Draw a full screen quad
commandList.Dispatch(threadGroupCount.X, threadGroupCount.Y, threadGroupCount.Z);
}
}
catch (Exception e)
{
var re = new RuntimeException(e.InnermostException(), this);
RuntimeGraph.ReportException(re);
}
}
public override void Draw(RenderDrawContext context, RenderView renderView, RenderViewStage renderViewStage)
{
shader.UpdateEffect(context.GraphicsDevice);
foreach (var renderNode in renderViewStage.SortedRenderNodes)
{
var renderMesh = renderNode.RenderObject as RenderMesh;
if (renderMesh == null)
{
continue;
}
// get wireframe script
WireframeScript wireframeScript = null;
if (renderMesh.Source is ModelComponent)
{
wireframeScript = (renderMesh.Source as ModelComponent).Entity.Get <WireframeScript>();
}
if (wireframeScript == null || !wireframeScript.Enabled)
{
continue;
}
MeshDraw drawData = renderMesh.ActiveMeshDraw;
// bind VB
for (int slot = 0; slot < drawData.VertexBuffers.Length; slot++)
{
var vertexBuffer = drawData.VertexBuffers[slot];
context.CommandList.SetVertexBuffer(slot, vertexBuffer.Buffer, vertexBuffer.Offset, vertexBuffer.Stride);
}
// set shader parameters
shader.Parameters.Set(TransformationKeys.WorldViewProjection, renderMesh.World * renderView.ViewProjection); // matrix
shader.Parameters.Set(TransformationKeys.WorldScale, new Vector3(ScaleAdjust + 1.0f)); // increase size to avoid z-fight
shader.Parameters.Set(SinglePassWireframeShaderKeys.Viewport, new Vector4(context.RenderContext.RenderView.ViewSize, 0, 0));
shader.Parameters.Set(SinglePassWireframeShaderKeys.LineWidth, wireframeScript.LineWidth);
shader.Parameters.Set(SinglePassWireframeShaderKeys.LineColor, (Vector3)wireframeScript.Color);
// prepare pipeline state
pipelineState.State.RootSignature = shader.RootSignature;
pipelineState.State.EffectBytecode = shader.Effect.Bytecode;
pipelineState.State.PrimitiveType = drawData.PrimitiveType;
pipelineState.State.Output.CaptureState(context.CommandList);
pipelineState.Update();
context.CommandList.SetIndexBuffer(drawData.IndexBuffer.Buffer, drawData.IndexBuffer.Offset, drawData.IndexBuffer.Is32Bit);
context.CommandList.SetPipelineState(pipelineState.CurrentState);
// apply the effect
shader.Apply(context.GraphicsContext);
if (drawData.IndexBuffer != null)
{
context.CommandList.DrawIndexed(drawData.DrawCount, drawData.StartLocation);
}
else
{
context.CommandList.Draw(drawData.DrawCount, drawData.StartLocation);
}
}
}
