[英]Why does SFML Shader cause segmentation fault?
為什么sf :: Shader會導致分段錯誤。我將顯示代碼,並告訴那些看了我使用引擎的代碼的代碼,它可以正常工作,因此除了sf ::不會導致崩潰。着色器。加載着色器時代碼停止。
main.cpp中
#include <iostream>
#include "CoreEngine.h"
#include "maingame.h"
int main()
{
//CoreEngine e(new MainGame(new Vector2i(800, 600), "Mama"));
//e.start();
Window::createWindow(800, 600, "Mama");
Window::clearColor(124, 32, 125);
bool running = true;
while(running){
if(Window::isWindowClosed())
running = false;
sf::RectangleShape shape(sf::Vector2f(20, 20));
shape.setPosition(10, 10);
sf::Shader shader;
if(!shader.loadFromFile("fragment.fs", sf::Shader::Fragment))
std::cout << "dfsfsdf";
Window::clear();
Window::getDrawer()->draw(shape, &shader);
Window::render();
}
}
這是代碼的編譯版本。
#include <iostream>
#include <SFML/Graphics.hpp>
int main()
{
//CoreEngine e(new MainGame(new Vector2i(800, 600), "Mama"));
//e.start();
sf::RenderWindow window(sf::VideoMode(800, 600), "Msadama");
sf::Shader shader;
if(!shader.loadFromFile("fragment.fs", sf::Shader::Fragment)){
std::cerr << "Shader failed to load" << std::endl;
return 0;
}
sf::RectangleShape shape(sf::Vector2f(20, 20));
shape.setPosition(10, 10);
while(window.isOpen()){
sf::Event event;
while(window.pollEvent(event)){
if(event.type == sf::Event::Closed)
window.close();
}
window.clear();
window.draw(shape);
window.display();
}
}
您對sf::Shader::loadFromFile
調用失敗,這將觸發if語句,因為您正在檢查錯誤的條件。 您真正想要的是:
sf::Shader shader;
if(!shader.loadFromFile("fragment.fs", sf::Shader::Fragment))
std::cerr << "Shader failed to load" << std::endl;
return 0;
}
std::cout << "dfsfsdf";
Window::clear();
Window::getDrawer()->draw(shape, &shader);
Window::render();
無論如何,您不應該每幀都從文件加載着色器。 進行一次,檢查錯誤,然后進入主循環。 像這樣(未經測試):
int main()
{
Window::createWindow(800, 600, "Mama");
Window::clearColor(124, 32, 125);
sf::Shader shader;
if(!shader.loadFromFile("fragment.fs", sf::Shader::Fragment))
{
std::cerr << "Failed to load shader" << std::endl;
return 0;
}
bool running = true;
while(running){
if(Window::isWindowClosed())
running = false;
sf::RectangleShape shape(sf::Vector2f(20, 20));
shape.setPosition(10, 10);
Window::clear();
Window::getDrawer()->draw(shape, &shader);
Window::render();
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.