From 2179980ed660ef66a9c064d153c5de7994d431ab Mon Sep 17 00:00:00 2001
From: Kenneth Russel <kbrussel@alum.mit.edu>
Date: Wed, 25 Jun 2003 09:05:29 +0000
Subject: Split up net.java.games.util; moved GLUT and BufferUtils into
net.java.games.jogl.util, and moved demo-specific utility classes into
jogl-demos project under demos.util. Added nearly all JavaOne demos into
jogl-demos project; rewrote where necessary to use
ClassLoader.getResourceAsStream() instead of flat files, put into packages
and added to Makefile. Added gleem to jogl-demos project. Added jogl.jar
build rule.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@3 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
---
src/gleem/RightTruncPyrMapping.java | 64 +++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 src/gleem/RightTruncPyrMapping.java
(limited to 'src/gleem/RightTruncPyrMapping.java')
diff --git a/src/gleem/RightTruncPyrMapping.java b/src/gleem/RightTruncPyrMapping.java
new file mode 100644
index 0000000..d25c17a
--- /dev/null
+++ b/src/gleem/RightTruncPyrMapping.java
@@ -0,0 +1,64 @@
+/*
+ * gleem -- OpenGL Extremely Easy-To-Use Manipulators.
+ * Copyright (C) 1998-2003 Kenneth B. Russell (kbrussel@alum.mit.edu)
+ *
+ * Copying, distribution and use of this software in source and binary
+ * forms, with or without modification, is permitted provided that the
+ * following conditions are met:
+ *
+ * Distributions of source code must reproduce the copyright notice,
+ * this list of conditions and the following disclaimer in the source
+ * code header files; and Distributions of binary code must reproduce
+ * the copyright notice, this list of conditions and the following
+ * disclaimer in the documentation, Read me file, license file and/or
+ * other materials provided with the software distribution.
+ *
+ * The names of Sun Microsystems, Inc. ("Sun") and/or the copyright
+ * holder may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS," WITHOUT A WARRANTY OF ANY
+ * KIND. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, NON-INTERFERENCE, ACCURACY OF
+ * INFORMATIONAL CONTENT OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE
+ * COPYRIGHT HOLDER, SUN AND SUN'S LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL THE
+ * COPYRIGHT HOLDER, SUN OR SUN'S LICENSORS BE LIABLE FOR ANY LOST
+ * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
+ * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
+ * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
+ * INABILITY TO USE THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGES. YOU ACKNOWLEDGE THAT THIS SOFTWARE IS NOT
+ * DESIGNED, LICENSED OR INTENDED FOR USE IN THE DESIGN, CONSTRUCTION,
+ * OPERATION OR MAINTENANCE OF ANY NUCLEAR FACILITY. THE COPYRIGHT
+ * HOLDER, SUN AND SUN'S LICENSORS DISCLAIM ANY EXPRESS OR IMPLIED
+ * WARRANTY OF FITNESS FOR SUCH USES.
+ */
+
+package gleem;
+
+import gleem.linalg.*;
+
+/** The only mapping gleem supports right now -- a right truncated
+ pyramid. */
+
+public class RightTruncPyrMapping implements ScreenToRayMapping {
+ public void mapScreenToRay(Vec2f screenCoords,
+ CameraParameters params,
+ Vec3f raySource,
+ Vec3f rayDirection) {
+ Vec3f fwd = new Vec3f(params.getForwardDirection());
+ Vec3f up = new Vec3f(params.getUpDirection());
+ Vec3f right = fwd.cross(up);
+ fwd.normalize();
+ up.normalize();
+ right.normalize();
+ float horizFOV = (float) Math.atan(params.imagePlaneAspectRatio * Math.tan(params.vertFOV));
+ right.scale((float) (Math.tan(horizFOV) * screenCoords.get(0)));
+ up .scale((float) (Math.tan(params.vertFOV) * screenCoords.get(1)));
+ raySource.set(params.getPosition());
+ rayDirection.set(fwd.plus(up).plus(right));
+ }
+}
--
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