diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/util')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/Frustum2.java | 191 | ||||
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/PMVMatrix.java | 20 |
2 files changed, 20 insertions, 191 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/Frustum2.java b/src/jogl/classes/com/jogamp/opengl/util/Frustum2.java deleted file mode 100644 index 0e115d1a2..000000000 --- a/src/jogl/classes/com/jogamp/opengl/util/Frustum2.java +++ /dev/null @@ -1,191 +0,0 @@ -package com.jogamp.opengl.util; - -import java.nio.FloatBuffer; - -// import org.openmali.spatial.bodies.Box; -// import org.openmali.spatial.bodies.Classifier; -// import org.openmali.vecmath2.Matrix4f; - -public class Frustum2 { - protected Plane[] planes = new Plane[6]; - protected PMVMatrix pmvMatrix; - protected FloatBuffer pmv = FloatBuffer.allocate(16); - protected int pmvOffset; - - public Frustum2(PMVMatrix matrix) { - setMatrix(matrix); - for (int i = 0; i < 6; ++i) { - planes[i] = new Plane(); - } - } - - public void setMatrix(PMVMatrix matrix) { - this.pmvMatrix = matrix; - // pmv = pmvMatrix.glGetPMvMatrixf(); - // pmvOffset = pmv.position(); - makePmvMatrix(); - } - - protected Matrix4f proj; - protected Matrix4f modl; - - private FloatBuffer b; - private int bOffset; - - private float f(int offset) { - return b.get(bOffset + offset); - } - - private Matrix4f getMatrix4f(FloatBuffer b) { - this.b = b; - bOffset = b.position(); - return new Matrix4f(f(0), f(1), f(2), f(3), f(4), f(5), f(6)/* 12 */, f(7), f(8), f(9), f(10), f(11), f(12), - f(13), f(14), f(15)); - } - - public void makePmvMatrix() { - getMatrix4f(pmvMatrix.glGetMvMatrixf()).mul(getMatrix4f(pmvMatrix.glGetPMatrixf())).writeToBuffer(pmv, true, - false); - } - - protected class Vector3f { - public float x; - public float y; - public float z; - - @Override - public String toString() { - return "{" + x + "," + y + "," + z + "}"; - } - } - - protected class Plane { - public Vector3f n = new Vector3f(); - public float d; - - public final float distanceTo(float x, float y, float z) { - return (n.x * x) + (n.y * y) + (n.z * z) + d; - } - - @Override - public String toString() { - return "Plane[" + n + ", " + d + "]"; - } - } - - protected float[] getMatrixFloat(FloatBuffer b) { - if (pmvMatrix.usesBackingArray()) { - return b.array(); - } else { - int p = b.position(); - float[] pm = new float[16]; - b.get(pm, p, 16); - b.position(p); - return pm; - } - } - - protected float m(int a) { - return pmv.get(a); - } - - private static final boolean quickClassify(Plane p, Box box) { - if (p.distanceTo(box.getLowerX(), box.getLowerY(), box.getLowerZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getUpperX(), box.getLowerY(), box.getLowerZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getLowerX(), box.getUpperY(), box.getLowerZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getUpperX(), box.getUpperY(), box.getLowerZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getLowerX(), box.getLowerY(), box.getUpperZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getUpperX(), box.getLowerY(), box.getUpperZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getLowerX(), box.getUpperY(), box.getUpperZ()) > 0.0f) - return (true); - if (p.distanceTo(box.getUpperX(), box.getUpperY(), box.getUpperZ()) > 0.0f) - return (true); - - return (false); - } - - /** - * Quick check to see if an orthogonal bounding box is inside the frustum - */ - public final Classifier.Classification quickClassify(Box box) { - for (int i = 0; i < 6; ++i) { - if (!quickClassify(planes[i], box)) - return (Classifier.Classification.OUTSIDE); - } - - // We make no attempt to determine whether it's fully inside or not. - return (Classifier.Classification.SPANNING); - } - - protected float[] mat = new float[16]; - - public void compute() { - // Left: [30+00, 31+01, 32+02, 33+03] - // comboMatrix.m[12] + comboMatrix.m[0]; - - planes[0].n.x = m(12) + m(0); - planes[0].n.y = m(13) + m(1); - planes[0].n.z = m(14) + m(2); - planes[0].d = m(15) + m(3); - - // Right: [30-00, 31-01, 32-02, 33-03] - - planes[1].n.x = m(12) - m(0); - planes[1].n.y = m(13) - m(1); - planes[1].n.z = m(14) - m(2); - planes[1].d = m(15) - m(3); - - // Bottom: [30+10, 31+11, 32+12, 33+13] - - planes[2].n.x = m(12) + m(4); - planes[2].n.y = m(13) + m(5); - planes[2].n.z = m(14) + m(6); - planes[2].d = m(15) + m(7); - - // Top: [30-10, 31-11, 32-12, 33-13] - - planes[3].n.x = m(12) - m(4); - planes[3].n.y = m(13) - m(5); - planes[3].n.z = m(14) - m(6); - planes[3].d = m(15) - m(7); - - // Far: [30-20, 31-21, 32-22, 33-23] - - planes[5].n.x = m(12) - m(8); - planes[5].n.y = m(13) - m(9); - planes[5].n.z = m(14) - m(10); - planes[5].d = m(15) - m(11); - - // Near: [30+20, 31+21, 32+22, 33+23] - - planes[4].n.x = m(12) + m(8); - planes[4].n.y = m(13) + m(9); - planes[4].n.z = m(14) + m(10); - planes[4].d = m(15) + m(11); - - - for (int i = 0; i < 6; ++i) { - double invl = Math.sqrt(planes[i].n.x * planes[i].n.x + planes[i].n.y * planes[i].n.y + planes[i].n.z - * planes[i].n.z); - - planes[i].n.x *= invl; - planes[i].n.y *= invl; - planes[i].n.z *= invl; - planes[i].d *= invl; - } - } - - @Override - public String toString() { - return "m[" + m(0) + "|" + m(1) + "|" + m(2) + "|" + m(3) + "|" + m(4) + "|" + m(5) + "|" + m(6) + "|" + m(7) - + "|" + m(8) + "|" + m(9) + "|" + m(10) + "|" + m(11) + "|" + m(12) + "|" + m(13) + "|" + m(14) + "|" - + m(15) + "]" + "Frustum2[" + planes[0] + ", " + planes[1] + ", " + planes[2] + ", " + planes[3] + ", " - + planes[4] + ", " + planes[5] + "]"; - } -} diff --git a/src/jogl/classes/com/jogamp/opengl/util/PMVMatrix.java b/src/jogl/classes/com/jogamp/opengl/util/PMVMatrix.java index 34971a9af..1628e0a8e 100644 --- a/src/jogl/classes/com/jogamp/opengl/util/PMVMatrix.java +++ b/src/jogl/classes/com/jogamp/opengl/util/PMVMatrix.java @@ -385,6 +385,26 @@ public class PMVMatrix implements GLMatrixFunc { public final FloatBuffer glGetPMvMatrixf() { return matrixPMv; } + + /** + * @param d a 4*4 float array to hold the pre-multiplied P*MV + * @param d_off offset of d + * @return the pre-multiplied P*MV, param d + */ + public float[] getPreMultipliedPMV(float[] d, int d_off) { + FloatUtil.multMatrixf(matrixP, matrixMv, d, d_off); + return d; + } + + /** + * @param d a 4*4 FloatBuffer to hold the premultiplied P*MV + * @param d_off offset of d + * @return the pre-multiplied P*MV, param d + */ + public FloatBuffer getPreMultipliedPMV(FloatBuffer d) { + FloatUtil.multMatrixf(matrixP, matrixMv, d); + return d; + } /** * Returns 3 matrices within one FloatBuffer: {@link #glGetPMatrixf() P}, {@link #glGetMvMatrixf() Mv} and {@link #glGetMviMatrixf() Mvi}. |