diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java b/src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java index d2e7403c2..1ebf8ce9f 100644 --- a/src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java +++ b/src/jogl/classes/com/jogamp/opengl/math/geom/Frustum.java @@ -45,13 +45,13 @@ public class Frustum { /** * Creates a defined instance w/ calculating the frustum - * using the passed float[16] as premultiplied P*MV. + * using the passed float[16] as premultiplied MV*P (column major order) */ - public Frustum(float[] pmv, int pmv_off) { + public Frustum(float[] mvp, int pmv_off) { for (int i = 0; i < 6; ++i) { planes[i] = new Plane(); } - update(pmv, pmv_off); + update(mvp, pmv_off); } public static class Plane { @@ -81,68 +81,68 @@ public class Frustum { /** * Re-calculate the frustum - * using the passed float[16] as premultiplied P*MV. + * using the passed float[16] as premultiplied MV*P (column major order). */ - public void update(float[] pmv, int pmv_off) { + public void update(float[] mvp, int mvp_off) { // Left: [30+00, 31+01, 32+02, 33+03] // comboMatrix.m[12] + comboMatrix.m[0]; { final Plane p = planes[0]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] + pmv[ pmv_off + 0 ]; - p_n[1] = pmv[ pmv_off + 13 ] + pmv[ pmv_off + 1 ]; - p_n[2] = pmv[ pmv_off + 14 ] + pmv[ pmv_off + 2 ]; - p.d = pmv[ pmv_off + 15 ] + pmv[ pmv_off + 3 ]; + p_n[0] = mvp[ mvp_off + 12 ] + mvp[ mvp_off + 0 ]; + p_n[1] = mvp[ mvp_off + 13 ] + mvp[ mvp_off + 1 ]; + p_n[2] = mvp[ mvp_off + 14 ] + mvp[ mvp_off + 2 ]; + p.d = mvp[ mvp_off + 15 ] + mvp[ mvp_off + 3 ]; } // Right: [30-00, 31-01, 32-02, 33-03] { final Plane p = planes[1]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] - pmv[ pmv_off + 0 ]; - p_n[1] = pmv[ pmv_off + 13 ] - pmv[ pmv_off + 1 ]; - p_n[2] = pmv[ pmv_off + 14 ] - pmv[ pmv_off + 2 ]; - p.d = pmv[ pmv_off + 15 ] - pmv[ pmv_off + 3 ]; + p_n[0] = mvp[ mvp_off + 12 ] - mvp[ mvp_off + 0 ]; + p_n[1] = mvp[ mvp_off + 13 ] - mvp[ mvp_off + 1 ]; + p_n[2] = mvp[ mvp_off + 14 ] - mvp[ mvp_off + 2 ]; + p.d = mvp[ mvp_off + 15 ] - mvp[ mvp_off + 3 ]; } // Bottom: [30+10, 31+11, 32+12, 33+13] { final Plane p = planes[2]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] + pmv[ pmv_off + 4 ]; - p_n[1] = pmv[ pmv_off + 13 ] + pmv[ pmv_off + 5 ]; - p_n[2] = pmv[ pmv_off + 14 ] + pmv[ pmv_off + 6 ]; - p.d = pmv[ pmv_off + 15 ] + pmv[ pmv_off + 7 ]; + p_n[0] = mvp[ mvp_off + 12 ] + mvp[ mvp_off + 4 ]; + p_n[1] = mvp[ mvp_off + 13 ] + mvp[ mvp_off + 5 ]; + p_n[2] = mvp[ mvp_off + 14 ] + mvp[ mvp_off + 6 ]; + p.d = mvp[ mvp_off + 15 ] + mvp[ mvp_off + 7 ]; } // Top: [30-10, 31-11, 32-12, 33-13] { final Plane p = planes[3]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] - pmv[ pmv_off + 4 ]; - p_n[1] = pmv[ pmv_off + 13 ] - pmv[ pmv_off + 5 ]; - p_n[2] = pmv[ pmv_off + 14 ] - pmv[ pmv_off + 6 ]; - p.d = pmv[ pmv_off + 15 ] - pmv[ pmv_off + 7 ]; + p_n[0] = mvp[ mvp_off + 12 ] - mvp[ mvp_off + 4 ]; + p_n[1] = mvp[ mvp_off + 13 ] - mvp[ mvp_off + 5 ]; + p_n[2] = mvp[ mvp_off + 14 ] - mvp[ mvp_off + 6 ]; + p.d = mvp[ mvp_off + 15 ] - mvp[ mvp_off + 7 ]; } // Near: [30+20, 31+21, 32+22, 33+23] { final Plane p = planes[4]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] + pmv[ pmv_off + 8 ]; - p_n[1] = pmv[ pmv_off + 13 ] + pmv[ pmv_off + 9 ]; - p_n[2] = pmv[ pmv_off + 14 ] + pmv[ pmv_off + 10 ]; - p.d = pmv[ pmv_off + 15 ] + pmv[ pmv_off + 11 ]; + p_n[0] = mvp[ mvp_off + 12 ] + mvp[ mvp_off + 8 ]; + p_n[1] = mvp[ mvp_off + 13 ] + mvp[ mvp_off + 9 ]; + p_n[2] = mvp[ mvp_off + 14 ] + mvp[ mvp_off + 10 ]; + p.d = mvp[ mvp_off + 15 ] + mvp[ mvp_off + 11 ]; } // Far: [30-20, 31-21, 32-22, 33-23] { final Plane p = planes[5]; final float[] p_n = p.n; - p_n[0] = pmv[ pmv_off + 12 ] - pmv[ pmv_off + 8 ]; - p_n[1] = pmv[ pmv_off + 13 ] - pmv[ pmv_off + 9 ]; - p_n[2] = pmv[ pmv_off + 14 ] - pmv[ pmv_off + 10 ]; - p.d = pmv[ pmv_off + 15 ] - pmv[ pmv_off + 11 ]; + p_n[0] = mvp[ mvp_off + 12 ] - mvp[ mvp_off + 8 ]; + p_n[1] = mvp[ mvp_off + 13 ] - mvp[ mvp_off + 9 ]; + p_n[2] = mvp[ mvp_off + 14 ] - mvp[ mvp_off + 10 ]; + p.d = mvp[ mvp_off + 15 ] - mvp[ mvp_off + 11 ]; } for (int i = 0; i < 6; ++i) { |