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#include <SFML/Graphics.hpp>
#include <iostream>
int main()
{
if (sf::Shader::IsAvailable() == false)
return EXIT_SUCCESS;
sf::RenderWindow App(sf::VideoMode(1024, 768), "SFML Shader test");
App.UseVerticalSync(true);
sf::Image SomeImage, AnotherImage, Image;
SomeImage.LoadFromFile("someimage.png");
AnotherImage.LoadFromFile("anotherimage.png");
Image.LoadFromFile("image.png");
sf::Shader myShader;
myShader.LoadFromFile("MyShader.frag");
myShader.SetTexture("imageA", sf::Shader::CurrentTexture);
myShader.SetTexture("imageB", AnotherImage);
sf::Sprite sprite1,sprite2,sprite3;
sprite1.SetImage(SomeImage);
sprite2.SetImage(SomeImage);
sprite3.SetImage(Image);
sprite2.Move(SomeImage.GetWidth(),0);
sprite3.Move(SomeImage.GetWidth(),SomeImage.GetHeight());
// Start the game loop
while (App.IsOpened())
{
sf::Event Event;
while (App.GetEvent(Event))
{
// Close window : exit
if (Event.Type == sf::Event::Closed)
App.Close();
// Escape key : exit
if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::Escape))
App.Close();
}
// Clear screen
App.Clear();
App.Draw(sprite1, myShader);
App.Draw(sprite2, myShader);
App.Draw(sprite3);
// Finally, display the rendered frame on screen
App.Display();
}
return EXIT_SUCCESS;
}
uniform sampler2D imageA;
uniform sampler2D imageB;
void main()
{
vec4 A = texture2D(imageA, gl_TexCoord[0].xy);
vec4 B = texture2D(imageB, gl_TexCoord[0].xy);
gl_FragColor = A*B;
}
#include <SFML/Graphics.hpp>
int main()
{
sf::Image myImage;
myImage.Create(100,100,sf::Color::Blue);
myImage.SaveToFile("myfile.png");
return EXIT_SUCCESS;
}