First Generated Terrain, not resized or moved
This commit is contained in:
parent
b66ffaf1d5
commit
546f36eb86
@ -4,6 +4,7 @@
|
||||
#include "ext.hpp"
|
||||
#include <iostream>
|
||||
#include <cmath>
|
||||
#include <vector>
|
||||
|
||||
#include "Shader_Loader.h"
|
||||
#include "Render_Utils.h"
|
||||
@ -69,6 +70,9 @@ namespace models {
|
||||
|
||||
Core::RenderContext glassWindowContext;
|
||||
|
||||
|
||||
//Procedurally Generated Terrain
|
||||
Core::RenderContext ProcedurallyGT;
|
||||
}
|
||||
|
||||
namespace texture {
|
||||
@ -208,6 +212,130 @@ std::string facesCubemap[6] =
|
||||
|
||||
|
||||
|
||||
std::vector<glm::vec3> vertices;
|
||||
std::vector<unsigned int> indices;
|
||||
std::vector<glm::vec3> normals;
|
||||
|
||||
// Generate the terrain mesh
|
||||
void Terraingen() {
|
||||
//TODO offset
|
||||
const int size = 128;
|
||||
const float scaleA = 0.01f;
|
||||
const float scaleB = 0.7f;
|
||||
|
||||
|
||||
for (int x = 0; x < size; x++)
|
||||
{
|
||||
for (int y = 0; y < size; y++)
|
||||
{
|
||||
|
||||
//Generating noise for point based on time
|
||||
float noise = glm::simplex(glm::vec2(
|
||||
(x - size / 2) * scaleA,
|
||||
(y - size / 2) * scaleA
|
||||
));
|
||||
//x, y, z of a point
|
||||
vertices.push_back(glm::vec3(
|
||||
(x - size / 2) * scaleB,
|
||||
noise * 1,
|
||||
(y - size / 2) * scaleB
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
//127 iterations not 128
|
||||
for (int x = 0; x < size - 1; x++)
|
||||
{
|
||||
for (int y = 0; y < size - 1; y++)
|
||||
{
|
||||
unsigned int i1 = x * size + y;
|
||||
unsigned int i2 = (x + 1) * size + y;
|
||||
unsigned int i3 = x * size + y + 1;
|
||||
unsigned int i4 = (x + 1) * size + y + 1;
|
||||
// 1 5 .`
|
||||
// 2 .` 5
|
||||
// .` 2 6 (for grid 4x4)
|
||||
|
||||
// i1 i2 .`
|
||||
// i3 .` i2
|
||||
// .` i3 i4
|
||||
indices.push_back(i1);
|
||||
indices.push_back(i2);
|
||||
indices.push_back(i3);
|
||||
|
||||
indices.push_back(i2);
|
||||
indices.push_back(i4);
|
||||
indices.push_back(i3);
|
||||
}
|
||||
}
|
||||
|
||||
//Generate normals
|
||||
|
||||
// Get the vertices of each triangle in mesh
|
||||
// For each group of indices
|
||||
glm::vec3 U, V;
|
||||
for (int i = 0; i < indices.size(); i += 3) {
|
||||
|
||||
glm::vec3 a = vertices[indices[i]];
|
||||
glm::vec3 b = vertices[indices[i + 1]];
|
||||
glm::vec3 c = vertices[indices[i + 2]];
|
||||
|
||||
// Get vectors of two edges of triangle
|
||||
U = b - a;
|
||||
V = c - a;
|
||||
//Append the normalized cross product
|
||||
normals.push_back(glm::normalize(-glm::cross(U, V)));
|
||||
U = a - b;
|
||||
V = c - b;
|
||||
normals.push_back(glm::normalize(glm::cross(U, V)));
|
||||
U = b - c;
|
||||
V = a - c;
|
||||
normals.push_back(glm::normalize(glm::cross(U, V)));
|
||||
//Total of 3 normals / triangle
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
//A function to write terrain into a file
|
||||
void WriteOBJ(const std::string& GeneratedTerrain) {
|
||||
// Open the output file
|
||||
std::ofstream outFile(GeneratedTerrain);
|
||||
if (!outFile.is_open()) {
|
||||
// Handle error
|
||||
printf("COULDNT OPEN FILE");
|
||||
return;
|
||||
}
|
||||
|
||||
// Write the vertices
|
||||
for (const auto& vertex : vertices) {
|
||||
outFile << "v " << vertex.x << " " << vertex.y << " " << vertex.z << std::endl;
|
||||
}
|
||||
|
||||
// Write the normals
|
||||
for (const auto& normal : normals) {
|
||||
outFile << "vn " << normal.x << " " << normal.y << " " << normal.z << std::endl;
|
||||
}
|
||||
|
||||
// Write the indices
|
||||
for (int i = 0; i < indices.size(); i += 3) {
|
||||
outFile
|
||||
<< "f " << indices[i] + 1 << "//" << i + 1 << " "
|
||||
<< indices[i + 1] + 1 << "//" << i + 2 << " "
|
||||
<< indices[i + 2] + 1 << "//" << i + 3 << std::endl;
|
||||
}
|
||||
|
||||
// Close the output file
|
||||
outFile.close();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
unsigned int cubemapTexture;
|
||||
|
||||
unsigned int skyboxVAO, skyboxVBO, skyboxEBO;
|
||||
@ -404,6 +532,7 @@ void renderShadowapSun(GLuint depthMapFBO, glm::mat4 lightVP) {
|
||||
drawObjectDepth(models::door_next_toContext, lightVP, glm::mat4());
|
||||
drawObjectDepth(models::door_next_to_doorhandleContext, lightVP, glm::mat4());
|
||||
drawObjectDepth(models::defaultTerrainContext, lightVP, glm::mat4());
|
||||
drawObjectDepth(models::ProcedurallyGT, lightVP, glm::mat4());
|
||||
|
||||
glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f)));
|
||||
glm::vec3 spaceshipUp = glm::normalize(glm::cross(spaceshipSide, spaceshipDir));
|
||||
@ -562,6 +691,7 @@ void renderScene(GLFWwindow* window)
|
||||
//drawObjectPBR(models::door3Context, glm::mat4(), glm::vec3(0.402978f, 0.120509f, 0.057729f), 0.2f, 0.0f);
|
||||
|
||||
drawObjectPBR(models::shelfContext, glm::mat4(), glm::vec3(0.2f, 0.2f, 0.2f), 0.5f, 0.0f);
|
||||
drawObjectPBR(models::ProcedurallyGT, glm::mat4(), glm::vec3(0.2f, 0.6f, 1.0f), 0.5f, 0.0f);
|
||||
//drawObjectPBR(models::landContext, glm::mat4(), glm::vec3(0.5f, 0.5f, 0.1f), 0.5f, 0.0f);
|
||||
|
||||
//drawObjectPBR(models::fishContext, glm::mat4(), glm::vec3(0.7f, 0.2f, 0.1f), 0.5f, 0.0f);
|
||||
@ -726,6 +856,10 @@ void init(GLFWwindow* window)
|
||||
|
||||
initDepthMap();
|
||||
|
||||
Terraingen();
|
||||
std::string GeneratedTerrain = "models/GeneratedTerrain.obj";
|
||||
WriteOBJ(GeneratedTerrain);
|
||||
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
program = shaderLoader.CreateProgram("shaders/shader_9_1.vert", "shaders/shader_9_1.frag");
|
||||
programTest = shaderLoader.CreateProgram("shaders/test.vert", "shaders/test.frag");
|
||||
@ -773,6 +907,8 @@ void init(GLFWwindow* window)
|
||||
loadModelToContext("./models/algae3.obj", models::algae3Context);
|
||||
loadModelToContext("./models/glassWindow.obj", models::glassWindowContext);
|
||||
|
||||
loadModelToContext("./models/GeneratedTerrain.obj", models::ProcedurallyGT);
|
||||
|
||||
|
||||
//loading textures
|
||||
glEnable(GL_BLEND);
|
||||
@ -844,6 +980,23 @@ void init(GLFWwindow* window)
|
||||
);
|
||||
}
|
||||
//
|
||||
|
||||
|
||||
/*
|
||||
glGenVertexArrays(1, &TerrainVAO);
|
||||
glGenBuffers(1, &TerrainVBO);
|
||||
glGenBuffers(1, &TerrainIBO);
|
||||
glBindVertexArray(TerrainVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, TerrainVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(glm::vec3), vertices.data(), GL_STATIC_DRAW);
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, TerrainIBO);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), indices.data(), GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
|
||||
glEnableVertexAttribArray(0);
|
||||
glBindVertexArray(0);
|
||||
//glBindBuffer(GL_ARRAY_BUFFER, 0);
|
||||
//glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
|
||||
*/
|
||||
}
|
||||
|
||||
void shutdown(GLFWwindow* window)
|
||||
@ -904,8 +1057,8 @@ void processInput(GLFWwindow* window)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
}
|
||||
|
||||
//float minX = -1000.f, maxX = 1000.f, minY = -1000.f, maxY = 1000.f, minZ = -1000.f, maxZ = 1000.f;
|
||||
float minX = -6.f, maxX = -0.47f, minY = 0.65f, maxY = 2.5f, minZ = -4.4f, maxZ = 4.5f;
|
||||
float minX = -1000.f, maxX = 1000.f, minY = -1000.f, maxY = 1000.f, minZ = -1000.f, maxZ = 1000.f;
|
||||
//float minX = -6.f, maxX = -0.47f, minY = 0.65f, maxY = 2.5f, minZ = -4.4f, maxZ = 4.5f;
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS) {
|
||||
glm::vec3 newPos = spaceshipPos + spaceshipDir * moveSpeed;
|
||||
if (newPos.x > minX && newPos.x < maxX) spaceshipPos.x = newPos.x;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user