public final void gluPerspective(
final float fovy, final float aspect, final float zNear, final float zFar) {
float top = (float) Math.tan(fovy * ((float) Math.PI) / 360.0f) * zNear;
float bottom = -1.0f * top;
float left = aspect * bottom;
float right = aspect * top;
glFrustumf(left, right, bottom, top, zNear, zFar);
}
public void display(GLAutoDrawable drawable) {
final GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
mats.glMatrixMode(GL2.GL_MODELVIEW);
mats.glLoadIdentity();
mats.glTranslatef(0f, 0f, -2.0f);
// t = t+0.5f;
t = 40f;
mats.glRotatef(t, 0f, 1f, 0f);
mats.glMatrixMode(GL2.GL_PROJECTION);
mats.glLoadIdentity();
mats.glFrustumf(-1f, 1f, -1f, 1f, 1f, 100f);
mats.update();
gl.glUseProgram(shader.getID());
gl.glUniformMatrix4fv(uniformMat, 3, false, mats.glGetPMvMviMatrixf());
obj.display(gl, mats);
gl.glFlush();
gl.glUseProgram(0);
}
void reshapeImpl(
final GL2ES2 gl,
final int tileX,
final int tileY,
final int tileWidth,
final int tileHeight,
final int imageWidth,
final int imageHeight) {
System.err.println(
Thread.currentThread()
+ " RedSquareES2.reshape "
+ tileX
+ "/"
+ tileY
+ " "
+ tileWidth
+ "x"
+ tileHeight
+ " of "
+ imageWidth
+ "x"
+ imageHeight
+ ", swapInterval "
+ swapInterval
+ ", drawable 0x"
+ Long.toHexString(gl.getContext().getGLDrawable().getHandle())
+ ", tileRendererInUse "
+ tileRendererInUse);
// Thread.dumpStack();
if (!gl.hasGLSL()) {
return;
}
st.useProgram(gl, true);
// Set location in front of camera
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
// compute projection parameters 'normal' perspective
final float fovy = 45f;
final float aspect2 = ((float) imageWidth / (float) imageHeight) / aspect;
final float zNear = 1f;
final float zFar = 100f;
// compute projection parameters 'normal' frustum
final float top = (float) Math.tan(fovy * ((float) Math.PI) / 360.0f) * zNear;
final float bottom = -1.0f * top;
final float left = aspect2 * bottom;
final float right = aspect2 * top;
final float w = right - left;
final float h = top - bottom;
// compute projection parameters 'tiled'
final float l = left + tileX * w / imageWidth;
final float r = l + tileWidth * w / imageWidth;
final float b = bottom + tileY * h / imageHeight;
final float t = b + tileHeight * h / imageHeight;
pmvMatrix.glFrustumf(l, r, b, t, zNear, zFar);
// pmvMatrix.glOrthof(-4.0f, 4.0f, -4.0f, 4.0f, 1.0f, 100.0f);
st.uniform(gl, pmvMatrixUniform);
st.useProgram(gl, false);
System.err.println(Thread.currentThread() + " RedSquareES2.reshape FIN");
}