Java Bindings for OpenGL: Difference between revisions

Revision as of 14:53, 16 March 2009

Revision as of 14:56, 16 March 2009

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==Example==

This examples shows how to draw a Polygon (without initialization or repaint code) <ref>Borrowed from [http://nehe.gamedev.net/lesson.asp?index=01 Nehe tutorial], which code are free to use elsewhere</ref>. Here is the reference [[C (programming language)|C]] implementation :

int DrawGLScene(GLvoid) {

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glLoadIdentity();

glTranslatef(-1.5f, 0.0f, -6.0f); // Move Left 1.5 Units

glBegin(GL_TRIANGLES); //Drawing Using Triangles

glVertex3f( 0.0f, 1.0f, 0.0f); // Top

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glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right

glEnd();

glTranslatef(3.0f, 0.0f, 0.0f);

glBegin(GL_QUADS); // Draw A Quad

glVertex3f(-1.0f, 1.0f, 0.0f); // Top Left

glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right

glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right

glVertex3f(-1.0f,-1.0f, 0.0f); // Bottom Left

glEnd();

glFlush();

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gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

gl.glLoadIdentity();

gl.glTranslatef(-1.5f, 0.0f, -6.0f); // Move Left 1.5 Units

gl.glBegin(GL.GL_TRIANGLES); // Drawing Using Triangles

gl.glVertex3f( 0.0f, 1.0f, 0.0f); // Top

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gl.glEnd();

gl.glTranslatef(3.0f, 0.0f, 0.0f);

gl.glBegin(GL.GL_QUADS); // Draw A Quad

gl.glVertex3f(-1.0f, 1.0f, 0.0f); // Top Left

gl.glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right