wehub-resource-sync
98 lines
3.2 KiB
C#
98 lines
3.2 KiB
C#
using T3.Core.DataTypes.ShaderGraph;
|
|
using T3.Core.Utils;
|
|
|
|
namespace Lib.field.generate.sdf;
|
|
|
|
[Guid("67f21840-dc9a-4390-aa45-234ce81c8717")]
|
|
internal sealed class CylinderSDF : Instance<CylinderSDF>
|
|
, ITransformable
|
|
, IGraphNodeOp
|
|
{
|
|
[Output(Guid = "e3690acf-e989-4327-8ee9-441bb48ac3a4")]
|
|
public readonly Slot<ShaderGraphNode> Result = new();
|
|
|
|
// ITransformable interface implementation (Gizmo support)
|
|
IInputSlot ITransformable.TranslationInput => Center;
|
|
IInputSlot ITransformable.RotationInput => null;
|
|
IInputSlot ITransformable.ScaleInput => null;
|
|
public Action<Instance, EvaluationContext> TransformCallback { get; set; }
|
|
|
|
public CylinderSDF()
|
|
{
|
|
ShaderNode = new ShaderGraphNode(this);
|
|
Result.Value = ShaderNode;
|
|
Result.UpdateAction += Update;
|
|
}
|
|
|
|
private void Update(EvaluationContext context)
|
|
{
|
|
TransformCallback?.Invoke(this, context); // Needed for Gizmo support
|
|
ShaderNode.Update(context);
|
|
|
|
var axis = Axis.GetEnumValue<AxisTypes>(context);
|
|
|
|
var templateChanged = axis != _axis;
|
|
if (!templateChanged)
|
|
return;
|
|
|
|
_axis = axis;
|
|
ShaderNode.FlagCodeChanged();
|
|
}
|
|
|
|
public ShaderGraphNode ShaderNode { get; }
|
|
|
|
//public void GetShaderCode(StringBuilder shaderStringBuilder, Dictionary<string, string> globals)
|
|
public void GetPreShaderCode(CodeAssembleContext c, int inputIndex)
|
|
{
|
|
c.Globals["fRoundedCyl"] = """
|
|
float fRoundedCyl(float3 p, float3 center, float ra, float rb, float h) {
|
|
float2 d = float2(length (p.xz - center.xz) - 2.0*ra+rb, abs(p.y-center.y) - h);
|
|
return min(max(d.x,d.y),0.0) + length(max(d,0.0)) - rb;
|
|
}
|
|
""";
|
|
var a = _axisCodes0[(int)_axis];
|
|
c.AppendCall($"f{c}.w = fRoundedCyl(p{c}.{a}, {ShaderNode}Center.{a}, {ShaderNode}Radius *0.5, {ShaderNode}Rounding, {ShaderNode}Height *0.5 );");
|
|
// c.AppendCall($"f{c}.xyz = p{c}.xyz;");
|
|
c.AppendCall($"f{c}.xyz = p.w < 0.5 ? p{c}.xyz : 1;"); // save local space
|
|
}
|
|
|
|
public void GetPostShaderCode(CodeAssembleContext cac, int inputIndex)
|
|
{
|
|
}
|
|
|
|
private readonly string[] _axisCodes0 =
|
|
[
|
|
"yxz",
|
|
"xyz",
|
|
"xzy",
|
|
];
|
|
|
|
private AxisTypes _axis;
|
|
|
|
private enum AxisTypes
|
|
{
|
|
X,
|
|
Y,
|
|
Z,
|
|
}
|
|
|
|
[GraphParam]
|
|
[Input(Guid = "29d6303f-34ba-4e1e-a910-3366104e26e3")]
|
|
public readonly InputSlot<Vector3> Center = new();
|
|
|
|
[GraphParam]
|
|
[Input(Guid = "04ce1364-f421-4bd1-8f45-60921c8605df")]
|
|
public readonly InputSlot<float> Radius = new();
|
|
|
|
[GraphParam]
|
|
[Input(Guid = "8780e976-ae85-43fb-a822-def6ea21b407")]
|
|
public readonly InputSlot<float> Height = new();
|
|
|
|
[GraphParam]
|
|
[Input(Guid = "c409c9a7-5c45-47f7-a49e-2b0fadcf7892")]
|
|
public readonly InputSlot<float> Rounding = new();
|
|
|
|
[Input(Guid = "1F65CD48-CAA9-4B25-925C-7CBCC12EABBC", MappedType = typeof(AxisTypes))]
|
|
public readonly InputSlot<int> Axis = new();
|
|
|
|
} |