Hair & Curves (#1992)

* remove unused

* Refactor & curves support

* remove unused

* CurveGroupAux

* hair transform

* minor update

* transform

* fix crash

* fix windows build

* flex order

* minor updates

* Curves.h

zeno/include/zeno/types/CurveType.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#include <string>
+#include <magic_enum.hpp>
+
+namespace zeno {
+
+enum struct CurveType {
+
+    QUADRATIC_BSPLINE,
+    RIBBON_BSPLINE,
+    CUBIC_BSPLINE,
+
+    LINEAR,
+    BEZIER,
+    CATROM
+};
+
+static unsigned int CurveDegree(zeno::CurveType type) {
+
+    switch( type ) {
+    case CurveType::LINEAR:
+        return 1;
+
+    case CurveType::QUADRATIC_BSPLINE:
+    case CurveType::RIBBON_BSPLINE:
+        return 2;
+
+    case CurveType::CUBIC_BSPLINE:
+    case CurveType::BEZIER:
+    case CurveType::CATROM:
+        return 3;
+    }
+    return 0;
+}
+
+static std::string CurveTypeDefaultString() {
+    auto name = magic_enum::enum_name(CurveType::LINEAR);
+    return std::string(name);
+}
+
+static std::string CurveTypeListString() {
+    auto list = magic_enum::enum_names<CurveType>();
+
+    std::string result;
+    for (auto& ele : list) {
+        result += " ";
+        result += ele;
+    }
+    return result;
+}
+
+} //zeno

zeno/src/nodes/prim/AsCurves.cpp

@@ -0,0 +1,35 @@
+#include <zeno/types/PrimitiveObject.h>
+#include <zeno/types/CurveType.h>
+#include <zeno/types/UserData.h>
+#include <zeno/zeno.h>
+
+#include "magic_enum.hpp"
+
+namespace zeno {
+
+struct AsCurves : zeno::INode {
+    virtual void apply() override {
+
+        auto prim = get_input2<zeno::PrimitiveObject>("prim");
+
+        auto typeString = get_input2<std::string>("type:");
+        auto typeEnum = magic_enum::enum_cast<CurveType>(typeString).value_or(CurveType::LINEAR);
+        auto typeIndex = (int)magic_enum::enum_index<CurveType>(typeEnum).value_or(0);
+
+        prim->userData().set2("curve", typeIndex);
+        set_output("prim", std::move(prim));
+    }
+};
+
+ZENDEFNODE(AsCurves, 
+{   {   
+        {"prim"},
+    },
+    {"prim"}, //output
+    {
+        {"enum " + zeno::CurveTypeListString(), "type", zeno::CurveTypeDefaultString() }
+    },            //prim
+    {"prim"}
+});
+
+} // namespace

zeno/src/nodes/prim/CyHair.cpp

@@ -0,0 +1,43 @@
+#include <zeno/types/PrimitiveObject.h>
+#include <zeno/types/CurveType.h>
+#include <zeno/types/UserData.h>
+#include <zeno/zeno.h>
+
+#include "magic_enum.hpp"
+
+#include <filesystem>
+#include <vector>
+
+namespace zeno {
+
+struct CyHair : zeno::INode {
+    virtual void apply() override {
+
+        auto path = get_input2<std::string>("path");
+        bool exist = std::filesystem::exists(path);
+        bool yup = get_input2<bool>("yup");
+
+        if (!exist) {
+            throw std::string("CyHair file doesn't exist");
+        }
+
+        auto out = std::make_shared<zeno::PrimitiveObject>();
+        out->userData().set2("yup", yup);
+        out->userData().set2("path", path);
+        out->userData().set2("cyhair", true);
+
+        set_output("out", std::move(out));
+    }
+};
+
+ZENDEFNODE(CyHair, 
+{   {   
+        {"readpath", "path"},
+        {"bool", "yup", "1"},
+    },
+    {"out"}, //output
+    {},
+    {"read"}
+});
+
+} // namespace

zeno/src/nodes/prim/SimpleGeometry.cpp

@@ -1283,10 +1283,10 @@ struct CreateSphere : zeno::INode {
             memcpy(row2.data(), transform_ptr+8, sizeof(float)*4);  
             memcpy(row3.data(), transform_ptr+12, sizeof(float)*4);
 
-            prim->userData().set2("sphere_transform_row0", row0);
-            prim->userData().set2("sphere_transform_row1", row1);
-            prim->userData().set2("sphere_transform_row2", row2);
-            prim->userData().set2("sphere_transform_row3", row3);
+            prim->userData().set2("_transform_row0", row0);
+            prim->userData().set2("_transform_row1", row1);
+            prim->userData().set2("_transform_row2", row2);
+            prim->userData().set2("_transform_row3", row3);
         }
 
         set_output("prim",std::move(prim));

zeno/src/nodes/prim/TransformPrimitive.cpp

@@ -377,6 +377,19 @@ struct PrimitiveTransform : zeno::INode {
             }
         }
 
+        auto transform_ptr = glm::value_ptr(matrix);
+
+        zeno::vec4f row0, row1, row2, row3;
+        memcpy(row0.data(), transform_ptr, sizeof(float)*4);
+        memcpy(row1.data(), transform_ptr+4, sizeof(float)*4);
+        memcpy(row2.data(), transform_ptr+8, sizeof(float)*4);  
+        memcpy(row3.data(), transform_ptr+12, sizeof(float)*4);
+
+        iObject->userData().set2("_transform_row0", row0);
+        iObject->userData().set2("_transform_row1", row1);
+        iObject->userData().set2("_transform_row2", row2);
+        iObject->userData().set2("_transform_row3", row3);
+
         set_output("outPrim", std::move(iObject));
     }
 };