//////////////////////////////////////////////
// create canvas in jframe with thread ( thread -> canvas.repaint();)
canvas = new AWTGLCanvas() {
long startTime = 0;
long fps = 0;
public void paintGL() {
if (startTime == 0) {
setup();
startTime = System.currentTimeMillis() + 5000;
}
try {
makeCurrent();
myRender();
swapBuffers();
} catch (LWJGLException e) {
throw new RuntimeException(e);
}
}
};
} catch (RuntimeException ex) {
} catch (LWJGLException ex) {
}
canvas.setBounds(0, 0, width, height);
//////////////////////////////////////////////
//Setup
byte[] pixels;
int cpt=0;
pixels = new byte[textureWidth * textureHeight * textureMode];
boolean state=true;
for (int i = 0; i < textureWidth; i++) {
for (int j = 0; j < textureHeight; j++) {
//pixels[cpt] = (byte) 0xFF; ;
if (state){
pixels[cpt] = (byte) 0;
cpt++;
pixels[cpt] = (byte) 1;
cpt++;
state=false;
}
else{
pixels[cpt] = (byte) 1;
cpt++;
pixels[cpt] = (byte) 0;
cpt++;
state=true;
}
pixels[cpt] = 0;
cpt++;
pixels[cpt] = 0;
cpt++;
}
}
GL11.glEnable(GL11.GL_TEXTURE_2D);
ByteBuffer scratch = ByteBuffer.wrap(pixels);
scratch = ByteBuffer.allocateDirect(textureWidth * textureHeight * textureMode);
scratch.position(0);
idTexture = BufferUtils.createIntBuffer(1);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glGenTextures(idTexture); // Create Texture In OpenGL
GL11.glBindTexture(GL11.GL_TEXTURE_2D, idTexture.get(0));
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER,
GL11.GL_NEAREST);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER,
GL11.GL_NEAREST);
GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, 4,
textureWidth,
textureHeight, 0, GL11.GL_RGBA,
GL11.GL_UNSIGNED_BYTE, scratch);
GL11.glDisable(GL11.GL_TEXTURE_2D);
//////////////////////////////////////////////
// myRender
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
float trans = 0;
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
// Origine en haut àgauche
GLU.gluOrtho2D(0, width, height, 0);
GL11.glViewport(0, 0, width, height);
GL11.glDisable(GL11.GL_BLEND);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glBindTexture(GL11.GL_TEXTURE_2D, idTexture.get(0));
GL11.glBegin(GL11.GL_QUADS);
GL11.glNormal3f( 0.0f, 0.0f, 1.0f);
GL11.glTexCoord2f(0.0f, 0.0f);
GL11.glVertex2f(0, 0);
GL11.glTexCoord2f(1.0f*rapWidth, 0.0f);
GL11.glVertex2f(width, 0);
GL11.glTexCoord2f(1.0f*rapWidth, 1.0f*rapHeight);
GL11.glVertex2f(width, height);
GL11.glTexCoord2f(0.0f, 1.0f*rapHeight);
GL11.glVertex2f(0, height);
GL11.glEnd();
GL11.glDisable(GL11.GL_TEXTURE_2D);
///
// GL11.glTexSubImage2D
the aim is change texture with GL11.glTexSubImage2D
There are an error in my code, because my display (canvas) is black, no texture.
:(
pdufranc, I replied to your post in the OpenGL forum.