static ShaderTraverseResult Traverse(this IGlobalVarNode node, ShaderTraverseResult result = null)
{
if (result.GlobalVars.ContainsKey(node))
{
return(result);
}
var globalVar = node.GetGlobalVar(result.GlobalVars.Values.Select(gv => gv.Identifier).ToArray());
result.GlobalVars[node] = globalVar;
result.Pins[globalVar.Identifier] = new ShaderGraphPin(node);
return(result);
}
public static ShaderTraverseResult Traverse(this IShaderNode node, ShaderTraverseResult result = null)
{
if (result == null)
{
result = new ShaderTraverseResult();
}
if (node != null)
{
return(Traverse((dynamic)node, result));
}
return(result);
}
static ShaderTraverseResult Traverse(this IFunctionNode node, ShaderTraverseResult result = null)
{
if (result.LocalDeclarations.ContainsKey(node))
{
return(result);
}
foreach (var arg in node.NodeArguments)
{
arg.Traverse(result);
}
result.FunctionDeclarations[node.Name] = node.Code;
var args = node.NodeArguments.Select(a => result.GetPhrase(a));
result.LocalDeclarations[node] = node.CreateShaderCallAssignment($"var{result.LocalDeclarations.Count}", args);
return(result);
}
public static ShaderTraverseResult Traverse(this IMadeUpShaderNode node, ShaderTraverseResult result = null) => result;
public void RecalcShader(bool isNew)
{
var declarations = "";
var pscode = @"
float4 col = float4(1, 1, 1, 1);
return col;";
if (FShaderProvider.SliceCount > 0 && FShaderProvider[0] != null)
{
this.traverseResult = FShaderProvider[0].Traverse();
declarations = string.Join(@"
", traverseResult.GlobalVars.Select(gv => gv.Value.ToString()).Concat(traverseResult.FunctionDeclarations.Values));
pscode = string.Join(@"
", traverseResult.LocalDeclarations.Values) + $@"
return {traverseResult.LocalDeclarations[FShaderProvider[0]].Identifier};";
;
}
var effectText = declarations +
@"
SamplerState linearSampler: IMMUTABLE
{
Filter = MIN_MAG_MIP_LINEAR;
AddressU = Clamp;
AddressV = Clamp;
};
cbuffer cbPerDraw : register(b0)
{
float4x4 tVP : LAYERVIEWPROJECTION;
};
cbuffer cbPerObj : register(b1)
{
float4x4 tW : WORLD;
};
struct VS_IN
{
float4 PosO : POSITION;
float4 TexCd : TEXCOORD0;
};
struct vs2ps
{
float4 PosWVP: SV_Position;
float2 TexCd: TEXCOORD0;
};
vs2ps VS(VS_IN input)
{
vs2ps output;
output.PosWVP = mul(input.PosO, mul(tW, tVP));
output.TexCd = input.TexCd.xy;
return output;
}
float4 PS(vs2ps In): SV_Target
{
"
+ pscode +
@"
}
technique10 Patched
{
pass P0
{
SetVertexShader(CompileShader(vs_4_0, VS()));
SetPixelShader(CompileShader(ps_4_0, PS()));
}
}";
FCode.SliceCount = 1;
FCode[0] = effectText;
SetShader(DX11Effect.FromString(effectText), isNew, "");
}