private ShaderFunc BuildMathVectorOperation(ShaderFunc a, ShaderFunc b, MathOperation operation)
{
switch (operation)
{
case MathOperation.Add:
return(new ShaderFunc(() => $"({a.Compile()}) + ({b.Compile()})"));
case MathOperation.Subtract:
return(new ShaderFunc(() => $"({a.Compile()}) - ({b.Compile()})"));
case MathOperation.Multiply:
return(new ShaderFunc(() => $"({a.Compile()}) * ({b.Compile()})"));
case MathOperation.Divide:
return(new ShaderFunc(() => $"({a.Compile()}) / ({b.Compile()})"));
case MathOperation.CrossProduct:
return(new ShaderFunc(() => $"cross(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Reflect:
return(new ShaderFunc(() => $"reflect(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Min:
return(new ShaderFunc(() => $"min(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Max:
return(new ShaderFunc(() => $"max(({a.Compile()}), ({b.Compile()}))"));
default: return(null);
}
}
private ShaderFunc BuildMathFloatOperation(ShaderFunc a, ShaderFunc b, MathOperation operation)
{
switch (operation)
{
case MathOperation.DotProduct:
return(new ShaderFunc(() => $"dot(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Distance:
return(new ShaderFunc(() => $"distance(({a.Compile()}), ({b.Compile()}))"));
default: return(null);
}
}
private ShaderFunc BuildMathOperation(ShaderFunc a, MathOperation operation)
{
switch (operation)
{
case MathOperation.Sine:
return(new ShaderFunc(() => $"sin({a.Compile()})"));
case MathOperation.Cosine:
return(new ShaderFunc(() => $"cos({a.Compile()})"));
case MathOperation.Tangent:
return(new ShaderFunc(() => $"tan({a.Compile()})"));
case MathOperation.Arcsine:
return(new ShaderFunc(() => $"asin({a.Compile()})"));
case MathOperation.Arccosine:
return(new ShaderFunc(() => $"acos({a.Compile()})"));
case MathOperation.Arctangent:
return(new ShaderFunc(() => $"atan({a.Compile()})"));
case MathOperation.Logarithm:
return(new ShaderFunc(() => $"log({a.Compile()})"));
case MathOperation.Round:
return(new ShaderFunc(() => $"round({a.Compile()})"));
case MathOperation.Floor:
return(new ShaderFunc(() => $"floor({a.Compile()})"));
case MathOperation.Ceil:
return(new ShaderFunc(() => $"ceil({a.Compile()})"));
case MathOperation.Absolute:
return(new ShaderFunc(() => $"abs({a.Compile()})"));
case MathOperation.Sign:
return(new ShaderFunc(() => $"sign({a.Compile()})"));
case MathOperation.Sqrt:
return(new ShaderFunc(() => $"sqrt({a.Compile()})"));
default:
throw new Exception("Unsupported math operation");
}
}
private ShaderFunc BuildMathOperation(ShaderFunc a, ShaderFunc b, MathOperation operation)
{
switch (operation)
{
case MathOperation.Add:
return(new ShaderFunc(() => $"({a.Compile()}) + ({b.Compile()})"));
case MathOperation.Subtract:
return(new ShaderFunc(() => $"({a.Compile()}) - ({b.Compile()})"));
case MathOperation.Multiply:
return(new ShaderFunc(() => $"({a.Compile()}) * ({b.Compile()})"));
case MathOperation.Divide:
return(new ShaderFunc(() => $"({a.Compile()}) / ({b.Compile()})"));
case MathOperation.Power:
return(new ShaderFunc(() => $"pow(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Minimum:
return(new ShaderFunc(() => $"min(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.Maximum:
return(new ShaderFunc(() => $"max(({a.Compile()}), ({b.Compile()}))"));
case MathOperation.LessThan:
return(new ShaderFunc(() => $"({a.Compile()}) < ({b.Compile()}) ? 1 : 0"));
case MathOperation.GreaterThan:
return(new ShaderFunc(() => $"({a.Compile()}) > ({b.Compile()}) ? 1 : 0"));
case MathOperation.Modulo:
return(new ShaderFunc(() => $"mod(({a.Compile()}), ({b.Compile()}))"));
default:
throw new Exception("Unsupported math operation");
}
}
public Shader(ShaderFunc calculate) => Calculate = calculate;
