feat(OpenGL): lab 4

OpenGL/lab4/Makefile

@@ -0,0 +1,67 @@
+#源文件目录
+SRC_DIR := ./
+#头文件目录
+INC_DIR := ./
+#输出文件目录
+OUT_DIR := ./build
+#目标文件（中间文件）目录
+OBJ_DIR :=./build
+#链接选项
+LDFLAGS := $(shell pkg-config --static --libs glfw3)
+LDFLAGS +=  $(shell pkg-config --static --libs assimp)
+LDFLAGS +=  $(shell pkg-config --static -libs openscenegraph)
+# 调试符号
+LDFLAGS +=  -g
+#编译工具链
+CC := g++
+#输出文件命名
+OUT := $(OUT_DIR)/hello
+
+#增加所有头文件所在的目录
+# INC_DIR += ./include/glad
+# INC_DIR += ./include/KHR
+
+#获取头文件目录
+CPP_FLAGS := $(foreach dir, $(INC_DIR), -I$(wildcard $(dir)))
+
+#方法一： 将所有源文件的文件目录添加进来，就不用每增加一个文件都修改一下makefile文件
+#SRC_DIR += ./src/
+
+#获取所有cpp文件名
+CPP_SRCS := $(foreach dir, $(SRC_DIR), $(wildcard $(dir)/*.cpp))
+
+#方法二：将增加的文件(带目录)增加到源文件数组中，此操作不用增加源文件目录
+# CPP_SRCS += ./src/sub_path1/*.cpp
+# CPP_SRCS += ./src/sub_path2/*.cpp
+# CPP_SRCS += ./src/sub_path....../*.cpp
+# CPP_SRCS += ./src/sub_pathn/*.cpp
+
+#生成所有的目标文件名
+OBJ := $(addprefix $(OBJ_DIR)/, $(notdir $(CPP_SRCS:.cpp=.o)))
+
+# 最终目标文件的生成（makefile 会将第一个target设为最终生成的目标文件
+# 【当然这里可以不是可执行文件，它也可以是.o文件】），链接过程
+# 这条语句的完全写法应该是：
+# ./OUT/xxx.OUT: prerequisites1.o prerequisites2.o prerequisites3.o ...
+#	g++ prerequisites1.o prerequisites2.o prerequisites3.o ... -o ./OUT/xxx.OUT
+$(OUT):$(OBJ)
+	$(CC) $^ -o $@ $(LDFLAGS)
+
+#将所有的.cpp文件加载到当前的路径中	
+vpath %.cpp $(sort $(dir $(CPP_SRCS)))
+#将所有的源文件编译生成响应的目标文件
+$(OBJ_DIR)/%.o:%.cpp
+	$(CC) $(CPP_FLAGS) -c $< -o $@
+
+nv:$(OUT)
+	prime-run ./$(OUT)
+
+run:$(OUT)
+	./$(OUT)
+
+all:$(OUT)
+
+.PHONY:clean
+clean:
+	rm -rf ./${OUT_DIR}/*
+	rm -rf ./${OBJ_DIR}/*

OpenGL/lab4/clock.osgt

@@ -0,0 +1,547 @@
+#Ascii Scene 
+#Version 78 
+#Generator OpenSceneGraph 2.9.17 
+
+osg::MatrixTransform {
+  UniqueID 1 
+  Name "Clock" 
+  DataVariance STATIC 
+  StateSet TRUE {
+    osg::StateSet {
+      UniqueID 2 
+      DataVariance STATIC 
+      ModeList 1 {
+        GL_LIGHTING ON 
+      }
+    }
+  }
+  Children 3 {
+    osg::Geode {
+      UniqueID 3 
+      Name "clockHouse" 
+      DataVariance STATIC 
+      Drawables 1 {
+        osg::Geometry {
+          UniqueID 4 
+          Name "clockHouse-geometry" 
+          DataVariance STATIC 
+          StateSet TRUE {
+            osg::StateSet {
+              UniqueID 5 
+              DataVariance STATIC 
+              ModeList 3 {
+                GL_CULL_FACE ON 
+                GL_LIGHTING ON 
+                GL_NORMALIZE OFF|OVERRIDE 
+              }
+              AttributeList 1 {
+                osg::Material {
+                  UniqueID 6 
+                  Ambient TRUE Front 0.588 0.588 0.588 1 Back 0.588 0.588 0.588 1 
+                  Diffuse TRUE Front 1 1 1 1 Back 1 1 1 1 
+                  Specular TRUE Front 0 0 0 1 Back 0 0 0 1 
+                  Emission TRUE Front 0 0 0 1 Back 0 0 0 1 
+                  Shininess TRUE Front 0 Back 0 
+                }
+                Value OFF 
+              }
+              TextureModeList 1 {
+                Data 1 {
+                  GL_TEXTURE_2D ON 
+                }
+              }
+              TextureAttributeList 1 {
+                Data 1 {
+                  osg::Texture2D {
+                    UniqueID 7 
+                    WRAP_S REPEAT 
+                    WRAP_T REPEAT 
+                    WRAP_R CLAMP_TO_EDGE 
+                    MIN_FILTER LINEAR_MIPMAP_LINEAR 
+                    MAG_FILTER LINEAR 
+                    UnRefImageDataAfterApply TRUE 
+                    ResizeNonPowerOfTwoHint TRUE 
+                    InternalFormatMode USE_S3TC_DXT1_COMPRESSION 
+                    Image TRUE {
+                      UniqueID 8 
+                      FileName "Images/clockface.JPG" 
+                      WriteHint 0 2 
+                      DataVariance STATIC 
+                    }
+                  }
+                  Value OFF 
+                }
+              }
+            }
+          }
+          PrimitiveSetList 6 {
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              1 2 0 3 
+            }
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              7 4 6 5 
+            }
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              23 20 22 21 
+            }
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              19 16 18 17 
+            }
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              13 14 12 15 
+            }
+            DrawElementsUShort GL_TRIANGLE_STRIP 4 {
+              9 10 8 11 
+            }
+            
+          }
+          VertexData {
+            Array TRUE ArrayID 1 Vec3fArray 24 {
+              -0.5 -0.05 0 
+              -0.5 0.05 0 
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+              -0.5 0.05 0 
+              -0.5 -0.05 0 
+              -0.5 -0.05 1 
+              -0.5 0.05 1 
+            }
+            Indices FALSE 
+            Binding BIND_PER_VERTEX 
+            Normalize 0 
+          }
+          NormalData {
+            Array TRUE ArrayID 2 Vec3fArray 24 {
+              0 0 -1 
+              0 0 -1 
+              0 0 -1 
+              0 0 -1 
+              0 0 1 
+              0 0 1 
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+            }
+            Indices FALSE 
+            Binding BIND_PER_VERTEX 
+            Normalize 0 
+          }
+          TexCoordData 1 {
+            Data {
+              Array TRUE ArrayID 3 Vec2fArray 24 {
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+              }
+              Indices FALSE 
+              Binding BIND_PER_VERTEX 
+              Normalize 0 
+            }
+          }
+        }
+      }
+    }
+    osg::Group {
+      UniqueID 9 
+      DataVariance STATIC 
+      Children 3 {
+        osg::MatrixTransform {
+          UniqueID 10 
+          Name "hours" 
+          DataVariance DYNAMIC 
+          UpdateCallback TRUE {
+            osg::AnimationPathCallback {
+              UniqueID 11 
+              DataVariance DYNAMIC 
+              AnimationPath TRUE {
+                osg::AnimationPath {
+                  UniqueID 12 
+                  DataVariance DYNAMIC 
+                  TimeControlPointMap 3 {
+                    Time 0 {
+                      Position 0 0 0.5 
+                      Rotation 0 -0.707107 -0.707107 0 
+                      Scale 1 1 1 
+                    }
+                    Time 21600 {
+                      Position 0 0 0.5 
+                      Rotation -0.707107 0 0 0.707107 
+                      Scale 1 1 1 
+                    }
+                    Time 43200 {
+                      Position 0 0 0.5 
+                      Rotation 0 0.707107 0.707107 0 
+                      Scale 1 1 1 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Children 1 {
+            osg::Geode {
+              UniqueID 13 
+              Name "hours-GEODE" 
+              DataVariance STATIC 
+              Drawables 1 {
+                osg::Geometry {
+                  UniqueID 14 
+                  Name "hours-Geometry" 
+                  DataVariance STATIC 
+                  StateSet TRUE {
+                    osg::StateSet {
+                      UniqueID 15 
+                      DataVariance STATIC 
+                      ModeList 3 {
+                        GL_CULL_FACE ON 
+                        GL_LIGHTING ON 
+                        GL_NORMALIZE OFF|OVERRIDE 
+                      }
+                      AttributeList 1 {
+                        osg::Material {
+                          UniqueID 6 
+                        }
+                        Value OFF 
+                      }
+                      TextureModeList 1 {
+                        Data 1 {
+                          GL_TEXTURE_2D ON 
+                        }
+                      }
+                      TextureAttributeList 1 {
+                        Data 1 {
+                          osg::Texture2D {
+                            UniqueID 16 
+                            WRAP_S REPEAT 
+                            WRAP_T REPEAT 
+                            WRAP_R CLAMP_TO_EDGE 
+                            MIN_FILTER LINEAR_MIPMAP_LINEAR 
+                            MAG_FILTER LINEAR 
+                            UnRefImageDataAfterApply TRUE 
+                            ResizeNonPowerOfTwoHint TRUE 
+                            InternalFormatMode USE_S3TC_DXT1_COMPRESSION 
+                            Image TRUE {
+                              UniqueID 17 
+                              FileName "Images/osg64.png" 
+                              WriteHint 0 2 
+                              DataVariance STATIC 
+                            }
+                          }
+                          Value OFF 
+                        }
+                      }
+                    }
+                  }
+                  PrimitiveSetList 1 {
+                    DrawArrays GL_TRIANGLES 0 3 
+                    
+                  }
+                  VertexData {
+                    Array TRUE ArrayID 4 Vec3fArray 3 {
+                      0.02 -0.01 -0.051 
+                      -0.02 -0.01 -0.051 
+                      0 0.295 -0.051 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  NormalData {
+                    Array TRUE ArrayID 5 Vec3fArray 3 {
+                      0 0 -1 
+                      0 0 -1 
+                      0 0 -1 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  TexCoordData 1 {
+                    Data {
+                      Array TRUE ArrayID 6 Vec2fArray 3 {
+                        0.5 0.95 
+                        0.5 0.95 
+                        0.5 0.95 
+                      }
+                      Indices FALSE 
+                      Binding BIND_PER_VERTEX 
+                      Normalize 0 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Matrix {
+            1 0 0 0 
+            0 1 0 0 
+            0 0 1 0 
+            0 0 0.5 1 
+          }
+          
+        }
+        osg::MatrixTransform {
+          UniqueID 18 
+          Name "Minutes" 
+          DataVariance DYNAMIC 
+          UpdateCallback TRUE {
+            osg::AnimationPathCallback {
+              UniqueID 19 
+              DataVariance DYNAMIC 
+              AnimationPath TRUE {
+                osg::AnimationPath {
+                  UniqueID 20 
+                  DataVariance DYNAMIC 
+                  TimeControlPointMap 3 {
+                    Time 0 {
+                      Position 0 0 0.5 
+                      Rotation 0 -0.707107 -0.707107 0 
+                      Scale 1 1 1 
+                    }
+                    Time 1800 {
+                      Position 0 0 0.5 
+                      Rotation -0.707107 0 0 0.707107 
+                      Scale 1 1 1 
+                    }
+                    Time 3600 {
+                      Position 0 0 0.5 
+                      Rotation 0 0.707107 0.707107 0 
+                      Scale 1 1 1 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Children 1 {
+            osg::Geode {
+              UniqueID 21 
+              Name "Minutes-GEODE" 
+              DataVariance STATIC 
+              Drawables 1 {
+                osg::Geometry {
+                  UniqueID 22 
+                  Name "Minutes-Geometry" 
+                  DataVariance STATIC 
+                  StateSet TRUE {
+                    osg::StateSet {
+                      UniqueID 15 
+                    }
+                  }
+                  PrimitiveSetList 1 {
+                    DrawArrays GL_TRIANGLES 0 3 
+                    
+                  }
+                  VertexData {
+                    Array TRUE ArrayID 7 Vec3fArray 3 {
+                      0.017 -0.01 -0.052 
+                      -0.017 -0.01 -0.052 
+                      0 0.45 -0.052 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  NormalData {
+                    Array TRUE ArrayID 8 Vec3fArray 3 {
+                      0 0 -1 
+                      0 0 -1 
+                      0 0 -1 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  TexCoordData 1 {
+                    Data {
+                      Array TRUE ArrayID 9 Vec2fArray 3 {
+                        0.195312 0.195312 
+                        0.195312 0.195312 
+                        0.195312 0.195312 
+                      }
+                      Indices FALSE 
+                      Binding BIND_PER_VERTEX 
+                      Normalize 0 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Matrix {
+            1 0 0 0 
+            0 1 0 0 
+            0 0 1 0 
+            0 0 0.5 1 
+          }
+          
+        }
+        osg::MatrixTransform {
+          UniqueID 23 
+          Name "Seconds" 
+          DataVariance DYNAMIC 
+          UpdateCallback TRUE {
+            osg::AnimationPathCallback {
+              UniqueID 24 
+              DataVariance DYNAMIC 
+              AnimationPath TRUE {
+                osg::AnimationPath {
+                  UniqueID 25 
+                  DataVariance DYNAMIC 
+                  TimeControlPointMap 3 {
+                    Time 0 {
+                      Position 0 0 0.5 
+                      Rotation 0 -0.707107 -0.707107 0 
+                      Scale 1 1 1 
+                    }
+                    Time 30 {
+                      Position 0 0 0.5 
+                      Rotation -0.707107 0 0 0.707107 
+                      Scale 1 1 1 
+                    }
+                    Time 60 {
+                      Position 0 0 0.5 
+                      Rotation 0 0.707107 0.707107 0 
+                      Scale 1 1 1 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Children 1 {
+            osg::Geode {
+              UniqueID 26 
+              Name "Seconds-GEODE" 
+              DataVariance STATIC 
+              Drawables 1 {
+                osg::Geometry {
+                  UniqueID 27 
+                  Name "Seconds-Geometry" 
+                  DataVariance STATIC 
+                  StateSet TRUE {
+                    osg::StateSet {
+                      UniqueID 15 
+                    }
+                  }
+                  PrimitiveSetList 1 {
+                    DrawArrays GL_TRIANGLES 0 3 
+                    
+                  }
+                  VertexData {
+                    Array TRUE ArrayID 10 Vec3fArray 3 {
+                      0.01 -0.01 -0.054 
+                      -0.01 -0.01 -0.054 
+                      0 0.47 -0.054 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  NormalData {
+                    Array TRUE ArrayID 11 Vec3fArray 3 {
+                      0 0 -1 
+                      0 0 -1 
+                      0 0 -1 
+                    }
+                    Indices FALSE 
+                    Binding BIND_PER_VERTEX 
+                    Normalize 0 
+                  }
+                  TexCoordData 1 {
+                    Data {
+                      Array TRUE ArrayID 12 Vec2fArray 3 {
+                        0.804788 0.195312 
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+                      }
+                      Indices FALSE 
+                      Binding BIND_PER_VERTEX 
+                      Normalize 0 
+                    }
+                  }
+                }
+              }
+            }
+          }
+          Matrix {
+            1 0 0 0 
+            0 1 0 0 
+            0 0 1 0 
+            0 0 0.5 1 
+          }
+          
+        }
+      }
+    }
+    osg::MatrixTransform {
+      UniqueID 28 
+      Name "BackClockFace" 
+      DataVariance DYNAMIC 
+      Children 1 {
+        osg::Group {
+          UniqueID 9 
+        }
+      }
+      Matrix {
+        -1 0 0 0 
+        0 -1 0 0 
+        0 0 1 0 
+        0 0 0 1 
+      }
+      
+    }
+  }
+}

OpenGL/lab4/main.cpp

@@ -0,0 +1,40 @@
+#include <osgViewer/Viewer>
+#include <osgDB/ReadFile>
+#include <osgText/Text>
+#include <osgGA/TrackballManipulator>
+#include <chrono>   
+#include <osgGA/GUIEventAdapter>
+#include <osgViewer/ViewerEventHandlers>
+
+using namespace std;
+using namespace chrono;
+
+auto lastFT   = system_clock::now();
+auto FT   = system_clock::now();
+
+int main(int argc, char** argv)
+{
+    // 创建一个OSG Viewer对象
+    osgViewer::Viewer viewer;
+    viewer.setUpViewInWindow(50, 50, 800, 600);
+    viewer.getCamera()->setClearColor(osg::Vec4(0.2, 0.2, 0.2, 1.0));
+    viewer.setCameraManipulator(new osgGA::TrackballManipulator);
+
+    viewer.addEventHandler(new osgViewer::StatsHandler);//查看帧数 s
+
+    // 创建一个OSG Node对象，并加载OSG模型
+    osg::ref_ptr<osg::Node> model = osgDB::readNodeFile("clock.osgt");
+
+    // 将Node对象添加到OSG Viewer中
+    viewer.setSceneData(model);
+    // 启动OSG Viewer循环
+    while (!viewer.done())
+    {
+        auto thisFT   = system_clock::now();
+        auto FT = duration_cast<microseconds>(thisFT - lastFT);
+        lastFT = thisFT;
+        viewer.frame();
+    }
+
+    return 0;
+}