From b000a8f1ac1391c4ca150054b86415feb6338df9 Mon Sep 17 00:00:00 2001
From: bobarna <barnabas.borcsok@gmail.com>
Date: Sun, 29 Nov 2020 01:56:32 +0100
Subject: [PATCH] obj reading and display successfull, but buggy
---
renders/rename_png_to_bmp.py | 2 +-
src/geometries/Geometry.h | 2 +-
src/geometries/ObjGeometry.cpp | 27 +++++++++++++++++++++++----
src/geometries/ObjGeometry.h | 14 +++++++++++++-
src/geometries/PBDSimulation.cpp | 4 ++--
src/geometries/VertexData.cpp | 8 ++++++++
src/geometries/VertexData.h | 2 ++
src/objects/HeadObject.h | 1 +
src/rendering/Camera.cpp | 2 +-
src/rendering/Scene.cpp | 21 +++++++++++----------
src/utils/OBJReader.cpp | 15 ++++-----------
src/utils/OBJReader.h | 4 ++--
12 files changed, 69 insertions(+), 33 deletions(-)
diff --git a/renders/rename_png_to_bmp.py b/renders/rename_png_to_bmp.py
index a97bea9..617b192 100755
--- a/renders/rename_png_to_bmp.py
+++ b/renders/rename_png_to_bmp.py
@@ -11,5 +11,5 @@ for path in pathlib.Path(".").iterdir():
old_extension = path.suffix
directory = path.parent
new_name = old_name + ".bmp"
-
+
path.rename(pathlib.Path(directory, new_name))
diff --git a/src/geometries/Geometry.h b/src/geometries/Geometry.h
index 7ff995b..be4a452 100644
--- a/src/geometries/Geometry.h
+++ b/src/geometries/Geometry.h
@@ -16,7 +16,7 @@ public:
virtual void Draw() = 0;
- virtual VertexData GetVertexDataByUV(float u, float v) {throw std::bad_exception();};
+ virtual VertexData GetVertexDataByUV(float u, float v) { throw std::bad_exception(); };
~Geometry();
};
diff --git a/src/geometries/ObjGeometry.cpp b/src/geometries/ObjGeometry.cpp
index 0ca8111..c48fbe3 100644
--- a/src/geometries/ObjGeometry.cpp
+++ b/src/geometries/ObjGeometry.cpp
@@ -1,5 +1,24 @@
-//
-// Created by bobarna on 2020. 11. 29..
-//
-
#include "ObjGeometry.h"
+
+ObjGeometry::ObjGeometry(const std::string &objPath) :
+ Geometry(),
+ objReader(objPath, vtxData) {
+ Initialize();
+}
+
+void ObjGeometry::Initialize() {
+ glBufferData(GL_ARRAY_BUFFER, sizeof(VertexData)*vtxData.size(), &vtxData[0], GL_STATIC_DRAW);
+ // Enable the vertex attribute arrays
+ glEnableVertexAttribArray(0); // attribute array 0 = POSITION
+ glEnableVertexAttribArray(1); // attribute array 1 = NORMAL
+ glEnableVertexAttribArray(2); // attribute array 2 = TEXCOORD0
+ // attribute array, components/attribute, component type, normalize?, stride, offset
+ glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, position));
+ glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, normal));
+ glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, texcoord));
+}
+
+void ObjGeometry::Draw() {
+ glBindVertexArray(vao);
+ glDrawArrays(GL_TRIANGLES, 0, vtxData.size());
+}
\ No newline at end of file
diff --git a/src/geometries/ObjGeometry.h b/src/geometries/ObjGeometry.h
index e650247..c34b803 100644
--- a/src/geometries/ObjGeometry.h
+++ b/src/geometries/ObjGeometry.h
@@ -2,8 +2,20 @@
#define BRAVE2_OBJGEOMETRY_H
-class ObjGeometry {
+#include "../utils/math.h"
+#include "../utils/OBJReader.h"
+#include "../objects/Object.h"
+class ObjGeometry : public Geometry {
+ std::string objPath;
+ OBJReader objReader;
+public:
+ //TODO read every data from OBJ file
+ ObjGeometry(const std::string &objPath);
+
+ void Initialize();
+
+ void Draw() override;
};
diff --git a/src/geometries/PBDSimulation.cpp b/src/geometries/PBDSimulation.cpp
index 8e6dd78..1ce44f6 100644
--- a/src/geometries/PBDSimulation.cpp
+++ b/src/geometries/PBDSimulation.cpp
@@ -33,7 +33,7 @@ void PBDSimulation::propagateHead() {
float currU = dis(gen);
float currV = dis(gen);
VertexData currPos = head->GetVertexDataByUV(currU, currV);
- while(currPos.normal.y < .0f){
+ while (currPos.normal.y < .0f) {
currU = dis(gen);
currV = dis(gen);
currPos = head->GetVertexDataByUV(currU, currV);
@@ -44,7 +44,7 @@ void PBDSimulation::propagateHead() {
#endif
vec3 color = util::getRandomRGBColorAround(vec3(222.0f, 101.0f, 32.0f), vec3(40.0f, 20.0f, 20.0f));
- strands.emplace_back(CreateStrand(nrSegments, lSeg, currPos.position * vec3(1,-1,1), color));
+ strands.emplace_back(CreateStrand(nrSegments, lSeg, currPos.position * vec3(1, -1, 1), color));
}
}
diff --git a/src/geometries/VertexData.cpp b/src/geometries/VertexData.cpp
index da8b209..9f8afec 100644
--- a/src/geometries/VertexData.cpp
+++ b/src/geometries/VertexData.cpp
@@ -3,3 +3,11 @@
std::ostream &operator<<(std::ostream &out, const VertexData &vD) {
return out << vD.texcoord << " -> P: " << vD.position << " N: " << vD.normal;
}
+
+VertexData::VertexData(vec3 p, vec3 n, vec2 uv) :
+ position(p), normal(n), texcoord(uv) {
+
+}
+
+VertexData::VertexData() {
+}
diff --git a/src/geometries/VertexData.h b/src/geometries/VertexData.h
index 8bdfc9f..e808702 100644
--- a/src/geometries/VertexData.h
+++ b/src/geometries/VertexData.h
@@ -6,6 +6,8 @@
struct VertexData {
vec3 position, normal;
vec2 texcoord;
+ VertexData();
+ VertexData(vec3 p, vec3 n, vec2 uv);
};
std::ostream &operator<<(std::ostream &out, const VertexData &vD);
diff --git a/src/objects/HeadObject.h b/src/objects/HeadObject.h
index e5f901b..f5a22ac 100644
--- a/src/objects/HeadObject.h
+++ b/src/objects/HeadObject.h
@@ -6,6 +6,7 @@
class HeadObject : public Object {
public:
HeadObject(Shader *_shader, Geometry *_geometry, Material *_material, Texture *_texture);
+
VertexData GetVertexDataByUV(float u, float v);
};
diff --git a/src/rendering/Camera.cpp b/src/rendering/Camera.cpp
index 9c3677d..ea2f1ce 100644
--- a/src/rendering/Camera.cpp
+++ b/src/rendering/Camera.cpp
@@ -31,7 +31,7 @@ mat4 Camera::P() const {
}
void Camera::Translate(vec3 dir) {
- vec3 forward = dir * vec3(0,0,1.f);
+ vec3 forward = dir * vec3(0, 0, 1.f);
wEye = normalize(wEye + dir) * length(wEye) + forward;
}
diff --git a/src/rendering/Scene.cpp b/src/rendering/Scene.cpp
index d09d161..d6d5bca 100644
--- a/src/rendering/Scene.cpp
+++ b/src/rendering/Scene.cpp
@@ -3,6 +3,7 @@
#include "../geometries/ParamSurface.h"
#include "shaders/PhongShader.h"
#include "../utils/OBJReader.h"
+#include "../geometries/ObjGeometry.h"
Scene::Scene(int w, int h) : camera(vec3(0, -.15f, .5), // Camera position (wEye)
vec3(0, -.15f, 0), // wLookat
@@ -11,19 +12,11 @@ Scene::Scene(int w, int h) : camera(vec3(0, -.15f, .5), // Camera position (wEye
}
-
void Scene::Build() {
size_t nrSims = 200;
size_t nrSegments = 30;
float lSeg = 0.025f;
- std::vector<vec3> objVertices;
- std::vector<vec2> objUvs;
- std::vector<vec3> objNormals;
- std::string objPath = "data/sphere.obj";
- OBJReader objReader(objPath, objVertices, objUvs, objNormals);
-
-
Shader *basicShader = new BasicShader();
basicShader->Bind(camera.getState());
@@ -42,11 +35,19 @@ void Scene::Build() {
auto headObject = new HeadObject(phongShader, sphere, headMaterial, headTexture);
headObject->Scale(vec3(.15, .1, .1));
- objects.push_back(headObject);
+// objects.push_back(headObject);
auto PBDSim = new PBDSimulation(headObject, nrSims, nrSegments, lSeg);
auto simulationObject = new HairSimObject(headObject, basicShader, PBDSim);
- sims.push_back(simulationObject);
+// sims.push_back(simulationObject);
+
+ auto testObject =
+ new Object(phongShader,
+ new ObjGeometry("../data/test.obj"),
+ headMaterial,
+ headTexture);
+
+ objects.push_back(testObject);
// Lights
lights.resize(3);
diff --git a/src/utils/OBJReader.cpp b/src/utils/OBJReader.cpp
index 680ea6f..e102360 100644
--- a/src/utils/OBJReader.cpp
+++ b/src/utils/OBJReader.cpp
@@ -1,7 +1,6 @@
#include "OBJReader.h"
-OBJReader::OBJReader(const std::string &filePath, std::vector<vec3> &out_vertices, std::vector<vec2> &out_uvs,
- std::vector<vec3> &out_normals) : is(filePath) {
+OBJReader::OBJReader(const std::string &filePath, std::vector<VertexData> &out_vtxData) : is(filePath) {
if (!is) {
std::cerr << "Can't open OBJ file: " << filePath << std::endl;
@@ -9,17 +8,12 @@ OBJReader::OBJReader(const std::string &filePath, std::vector<vec3> &out_vertice
}
readData();
- if (is.fail())
- std::cerr << filePath << std::endl;
+ for (auto curr: out_vtxData)
+ std::cout << curr << std::endl;
for (unsigned int i : vertexIndices)
- out_vertices.push_back(temp_vertices[i - 1]);
+ out_vtxData.emplace_back(temp_vertices[i - 1], temp_normals[i - 1], temp_uvs[i - 1]);
- for (unsigned int i : uvIndices)
- out_uvs.push_back(temp_uvs[i - 1]);
-
- for (unsigned int i : normalIndices)
- out_normals.push_back(temp_normals[i - 1]);
}
@@ -48,7 +42,6 @@ void OBJReader::readData() {
std::getline(is, lineType);
// output rest of the line
std::cerr << " " << lineType << std::endl;
- is.setstate(std::iostream::failbit);
}
}
}
diff --git a/src/utils/OBJReader.h b/src/utils/OBJReader.h
index 7027743..73b66ea 100644
--- a/src/utils/OBJReader.h
+++ b/src/utils/OBJReader.h
@@ -5,6 +5,7 @@
#include <vector>
#include <fstream>
#include "math.h"
+#include "../geometries/VertexData.h"
class OBJReader {
std::vector<unsigned int> vertexIndices, uvIndices, normalIndices;
@@ -15,8 +16,7 @@ class OBJReader {
std::ifstream is;
public:
- OBJReader(const std::string &filePath, std::vector<vec3> &vertices, std::vector<vec2> &uvs,
- std::vector<vec3> &normals);
+ OBJReader(const std::string &filePath, std::vector<VertexData>& out_vtxData);
void readData();
--
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