From b16341c0f9a972287b7ce13eafe29362df384baf Mon Sep 17 00:00:00 2001
From: "HuYingzhuo(hugo/hyzboy)" <hyzboy@gmail.com>
Date: Wed, 1 Nov 2023 18:37:10 +0800
Subject: [PATCH] draw gizmo3d move, next step is mouse to pick the gizmo

---
 doc/Gizmo.odg                 | Bin 0 -> 12175 bytes
 example/Gizmo/Gizmo3DMove.cpp | 234 ++++++++++++++++++++++++++++++++++
 2 files changed, 234 insertions(+)
 create mode 100644 doc/Gizmo.odg

diff --git a/doc/Gizmo.odg b/doc/Gizmo.odg
new file mode 100644
index 0000000000000000000000000000000000000000..f15de8a0c5959cfbd141ff458f9a2b53adc241b5
GIT binary patch
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diff --git a/example/Gizmo/Gizmo3DMove.cpp b/example/Gizmo/Gizmo3DMove.cpp
index e69de29b..745f1363 100644
--- a/example/Gizmo/Gizmo3DMove.cpp
+++ b/example/Gizmo/Gizmo3DMove.cpp
@@ -0,0 +1,234 @@
+// Gizmo 3D Move
+
+#include"VulkanAppFramework.h"
+#include<hgl/filesystem/FileSystem.h>
+#include<hgl/graph/InlineGeometry.h>
+#include<hgl/graph/VKRenderResource.h>
+#include<hgl/graph/RenderList.h>
+#include<hgl/graph/Camera.h>
+#include<hgl/graph/Ray.h>
+#include<hgl/graph/VKVertexAttribBuffer.h>
+#include<hgl/graph/mtl/Material3DCreateConfig.h>
+
+using namespace hgl;
+using namespace hgl::graph;
+
+static Color4f white_color(1,1,1,1);
+static Color4f yellow_color(1,1,0,1);
+
+class TestApp:public SceneAppFramework
+{
+    Color4f color;
+
+    DeviceBuffer *ubo_color=nullptr;
+
+private:
+
+    Material *          mtl_vtx_lum         =nullptr;
+    MaterialInstance *  mi_plane_grid       =nullptr;
+    Pipeline *          pipeline_vtx_lum    =nullptr;
+    Primitive *         ro_plane_grid       =nullptr;
+
+    Material *          mtl_vtx_color       =nullptr;
+    MaterialInstance *  mi_line             =nullptr;
+    Pipeline *          pipeline_vtx_color  =nullptr;
+    Primitive *         ro_line             =nullptr;
+
+    VBO *               vbo_pos             =nullptr;
+
+    Ray                 ray;
+
+private:
+
+    bool InitMaterialAndPipeline()
+    {
+        {
+            mtl::Material3DCreateConfig cfg(device->GetDeviceAttribute(),"VertexLuminance3D",Prim::Lines);
+
+            cfg.local_to_world=true;
+
+            mtl_vtx_lum=db->LoadMaterial("Std3D/VertexLum3D",&cfg);
+            if(!mtl_vtx_lum)return(false);
+
+            mi_plane_grid=db->CreateMaterialInstance(mtl_vtx_lum,nullptr,&white_color);
+            if(!mi_plane_grid)return(false);
+
+            pipeline_vtx_lum=CreatePipeline(mtl_vtx_lum,InlinePipeline::Solid3D,Prim::Lines);
+
+            if(!pipeline_vtx_lum)
+                return(false);
+        }
+
+        {
+            mtl::Material3DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor3D",Prim::Lines);
+
+            cfg.local_to_world=true;
+
+            mtl_vtx_color=db->LoadMaterial("Std3D/VertexColor3D",&cfg);
+            if(!mtl_vtx_color)return(false);
+
+            mi_line=db->CreateMaterialInstance(mtl_vtx_color);
+            if(!mi_line)return(false);
+
+            {
+                const PipelineData *ipd=GetPipelineData(InlinePipeline::Solid3D);
+
+                if(!ipd)
+                    return(false);
+
+                PipelineData *pd=new PipelineData(ipd);
+
+                pd->SetLineWidth(2);
+
+                pipeline_vtx_color=CreatePipeline(mtl_vtx_color,pd,Prim::Lines);
+
+                delete pd;
+
+                if(!pipeline_vtx_color)
+                    return(false);
+            }
+        }
+
+        return(true);
+    }
+    
+    Renderable *Add(Primitive *r,MaterialInstance *mi,Pipeline *p)
+    {
+        Renderable *ri=db->CreateRenderable(r,mi,p);
+
+        if(!ri)
+        {
+            LOG_ERROR(OS_TEXT("Create Renderable failed."));
+            return(nullptr);
+        }
+
+        render_root.CreateSubNode(ri);
+
+        return ri;
+    }
+
+    /**
+     * 写入一个坐标轴的线条数据.
+     * 
+     * \param pos       要写入数据的指针
+     * \param max_line  主线条方向
+     * \param oa1       其它轴1方向
+     * \param oa2       其它轴2方向
+     */
+    void WriteAxisPosition(Vector3f *pos,const Vector3f &max_line,const Vector3f &oa1,const Vector3f &oa2)
+    {
+        constexpr const float AXIS_LENGTH    =4;
+        constexpr const float AXIS_MIN_STEP  =1;
+        constexpr const float AXIS_ARROW_SIZE=0.25;
+
+        const Vector3f end_pos  =max_line*AXIS_LENGTH;                          ///<最终点位置
+        const Vector3f cross_pos=max_line*AXIS_MIN_STEP;                        ///<坐标轴尾部交叉线位置
+        const Vector3f arrow_pos=max_line*(AXIS_LENGTH-AXIS_MIN_STEP);          ///<箭头末端在主线上的位置
+
+        //主线
+        pos[0]=Vector3f(0,            0, 0);
+        pos[1]=end_pos;
+
+        //四根箭头线
+        pos[2]=end_pos;
+        pos[3]=arrow_pos-oa1*AXIS_ARROW_SIZE;
+
+        pos[4]=end_pos;
+        pos[5]=arrow_pos+oa1*AXIS_ARROW_SIZE;
+
+        pos[6]=end_pos;
+        pos[7]=arrow_pos-oa2*AXIS_ARROW_SIZE;
+
+        pos[8]=end_pos;
+        pos[9]=arrow_pos+oa2*AXIS_ARROW_SIZE;
+
+        //侧边连接其它轴线
+        pos[10]=cross_pos;
+        pos[11]=cross_pos+oa1*AXIS_MIN_STEP;
+        pos[12]=cross_pos;
+        pos[13]=cross_pos+oa2*AXIS_MIN_STEP;
+    }
+
+    bool CreateRenderObject()
+    {
+        using namespace inline_geometry;
+
+        {
+            struct PlaneGridCreateInfo pgci;
+
+            pgci.grid_size.width =32;
+            pgci.grid_size.height=32;
+
+            pgci.sub_count.width =8;
+            pgci.sub_count.height=8;
+
+            pgci.lum=0.5;
+            pgci.sub_lum=0.75;
+
+            ro_plane_grid=CreatePlaneGrid(db,mtl_vtx_lum->GetDefaultVIL(),&pgci);
+        }
+
+        {
+            constexpr const uint  AXIS_MAX_LINES =7;
+
+            ro_line=db->CreatePrimitive("Line",AXIS_MAX_LINES*2*3);
+            if(!ro_line)return(false);
+
+            Vector3f position_data[3][AXIS_MAX_LINES*2];
+
+            WriteAxisPosition(position_data[0],Vector3f(1,0,0),Vector3f(0,1,0),Vector3f(0,0,1));
+            WriteAxisPosition(position_data[1],Vector3f(0,1,0),Vector3f(1,0,0),Vector3f(0,0,1));
+            WriteAxisPosition(position_data[2],Vector3f(0,0,1),Vector3f(1,0,0),Vector3f(0,1,0));
+
+            Color4f color_data[3][AXIS_MAX_LINES*2];
+
+            for(Color4f &c:color_data[0])c=Color4f(1,0,0,1);
+            for(Color4f &c:color_data[1])c=Color4f(0,1,0,1);
+            for(Color4f &c:color_data[2])c=Color4f(0,0,1,1);
+            
+            if(!ro_line->Set(VAN::Position,  vbo_pos=   db->CreateVBO(VF_V3F,AXIS_MAX_LINES*2*3,position_data)))return(false);
+            if(!ro_line->Set(VAN::Color,                db->CreateVBO(VF_V4F,AXIS_MAX_LINES*2*3,color_data   )))return(false);
+        }
+
+        return(true);
+    }
+
+    bool InitScene()
+    {
+        //Add(ro_plane_grid,mi_plane_grid,pipeline_vtx_lum);
+        Add(ro_line,mi_line,pipeline_vtx_color);
+
+        camera->pos=Vector3f(32,32,32);
+        camera_control->SetTarget(Vector3f(0,0,0));
+        camera_control->Refresh();
+
+        render_root.RefreshMatrix();
+        render_list->Expend(&render_root);
+
+        return(true);
+    }
+
+public:
+
+    bool Init(int w,int h) override
+    {
+        if(!SceneAppFramework::Init(w,h))
+            return(false);
+
+        if(!InitMaterialAndPipeline())
+            return(false);
+
+        if(!CreateRenderObject())
+            return(false);
+
+        if(!InitScene())
+            return(false);
+
+        return(true);
+    }
+};//class TestApp:public CameraAppFramework
+
+int main(int,char **)
+{
+    return RunApp<TestApp>(1280,720);
+}