pour les tests, j'ai prix l'exemple du cube en bois openGL fourni dans les exemples SFML.
Le problème c'est que des que je creer un sf::RenderTexture, mon cube ne s'affiche plus, je sais pas comment lui dire de dessiner sur ce sf::RenderTexture ou un autre ... ?
si j'appel pas sf::RenderTexture::create(...) , le cube s'affiche normalement.
#include <SFML/Graphics.hpp>
#include <SFML/OpenGL.hpp>
int main()
{
// Create the main window
sf::RenderWindow window(sf::VideoMode(800, 600), "SFML OpenGL");
window.setVerticalSyncEnabled(true);
sf::RenderTexture render;
if (!render.create(800, 600))
return -1;
/* texture opengl bois*/
GLuint texture = 0;
{
sf::Image image;
if (!image.loadFromFile("resources/texture.jpg"))
return EXIT_FAILURE;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, image.getSize().x, image.getSize().y, GL_RGBA, GL_UNSIGNED_BYTE, image.getPixelsPtr());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
}
// Enable Z-buffer read and write
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_TRUE);
glClearDepth(1.f);
// Setup a perspective projection
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(90.f, 1.f, 1.f, 500.f);
// Bind our texture
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture);
glColor4f(1.f, 1.f, 1.f, 1.f);
// boucle principale
while (window.isOpen())
{
// Process events
sf::Event event;
while (window.pollEvent(event))
{
// Close window : exit
if (event.type == sf::Event::Closed)
window.close();
}
// Clear the depth buffer
glClear(GL_DEPTH_BUFFER_BIT);
// Apply some transformations
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Draw a cube
float size = 20.f;
/* position du cube */
glTranslated(0,0,-size*4);
glRotated(45,1,1,0);
/* desin du cube */
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex3f(-size, -size, -size);
glTexCoord2f(0, 1); glVertex3f(-size, size, -size);
glTexCoord2f(1, 1); glVertex3f( size, size, -size);
glTexCoord2f(1, 0); glVertex3f( size, -size, -size);
glTexCoord2f(0, 0); glVertex3f(-size, -size, size);
glTexCoord2f(0, 1); glVertex3f(-size, size, size);
glTexCoord2f(1, 1); glVertex3f( size, size, size);
glTexCoord2f(1, 0); glVertex3f( size, -size, size);
glTexCoord2f(0, 0); glVertex3f(-size, -size, -size);
glTexCoord2f(0, 1); glVertex3f(-size, size, -size);
glTexCoord2f(1, 1); glVertex3f(-size, size, size);
glTexCoord2f(1, 0); glVertex3f(-size, -size, size);
glTexCoord2f(0, 0); glVertex3f(size, -size, -size);
glTexCoord2f(0, 1); glVertex3f(size, size, -size);
glTexCoord2f(1, 1); glVertex3f(size, size, size);
glTexCoord2f(1, 0); glVertex3f(size, -size, size);
glTexCoord2f(0, 1); glVertex3f(-size, -size, size);
glTexCoord2f(0, 0); glVertex3f(-size, -size, -size);
glTexCoord2f(1, 0); glVertex3f( size, -size, -size);
glTexCoord2f(1, 1); glVertex3f( size, -size, size);
glTexCoord2f(0, 1); glVertex3f(-size, size, size);
glTexCoord2f(0, 0); glVertex3f(-size, size, -size);
glTexCoord2f(1, 0); glVertex3f( size, size, -size);
glTexCoord2f(1, 1); glVertex3f( size, size, size);
glEnd();
// Finally, display the rendered frame on screen
render.display();
window.draw( sf::Sprite(render.getTexture()) );
window.display();
}
// Don't forget to destroy our texture
glDeleteTextures(1, &texture);
return EXIT_SUCCESS;
}
