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/**
* @file lltreeparams.cpp
* @brief implementation of the LLTreeParams class.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
//////////////////////////////////////////////////////////////////////
#include "linden_common.h"
#include "llmath.h"
#include "lltreeparams.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
LLTreeParams::LLTreeParams()
{
// llinfos << "TREE PARAMS INITIALIZED" << llendl;
// init to basic something or other...
mShape = SR_TEND_FLAME;
mLevels = 1;
mScale = 15;
mScaleV = 0;
mBaseSize = 0.3f;
mRatio = 0.015f;
mRatioPower = 1.3f;
mLobes = 0;
mLobeDepth = .1f;
mFlare = 1.2f;
mFlarePercentage = 0.1f;
mFlareRes = 3;
//mAttractionUp = .5f;
mBaseSplits = 0;
mScale0 = 2.0;
mScaleV0 = 0.0;
// level 0
// scaling
mLength[0] = 1.0f;
mLengthV[0] = 0;
mTaper[0] = 1.0f;
// stem splits
mSegSplits[0] = 0.15f;
mSplitAngle[0] = 15.0f;
mSplitAngleV[0] = 10.0f;
mVertices[0] = 5;
// curvature
mCurveRes[0] = 4;
mCurve[0] = 0;
mCurveV[0] = 25;
mCurveBack[0] = 0;
// level 1
// scaling
mLength[1] = .3f;
mLengthV[1] = 0.05f;
mTaper[1] = 1.0f;
// angle params
mDownAngle[0] = 60.0f;
mDownAngleV[0] = 20.0f;
mRotate[0] = 140.0f;
mRotateV[0] = 0.0f;
mBranches[0] = 35;
mVertices[1] = 3;
// stem splits
mSplitAngle[1] = 0.0f;
mSplitAngleV[1] = 0.0f;
mSegSplits[1] = 0.0f;
// curvature
mCurveRes[1] = 4;
mCurve[1] = 0;
mCurveV[1] = 0;
mCurveBack[1] = 40;
// level 2
mLength[2] = .6f;
mLengthV[2] = .1f;
mTaper[2] = 1;
mDownAngle[1] = 30;
mDownAngleV[1] = 10;
mRotate[1] = 140;
mRotateV[1] = 0;
mBranches[1] = 20;
mVertices[2] = 3;
mSplitAngle[2] = 0;
mSplitAngleV[2] = 0;
mSegSplits[2] = 0;
mCurveRes[2] = 3;
mCurve[2] = 10;
mCurveV[2] = 150;
mCurveBack[2] = 0;
// level 3
mLength[3] = .4f;
mLengthV[3] = 0;
mTaper[3] = 1;
mDownAngle[2] = 45;
mDownAngleV[2] = 10;
mRotate[2] = 140;
mRotateV[2] = 0;
mBranches[2] = 5;
mVertices[3] = 3;
mSplitAngle[3] = 0;
mSplitAngleV[3] = 0;
mSegSplits[3] = 0;
mCurveRes[3] = 2;
mCurve[3] = 0;
mCurveV[3] = 0;
mCurveBack[3] = 0;
mLeaves = 0;
mLeafScaleX = 1.0f;
mLeafScaleY = 1.0f;
mLeafQuality = 1.25;
}
LLTreeParams::~LLTreeParams()
{
}
F32 LLTreeParams::ShapeRatio(EShapeRatio shape, F32 ratio)
{
switch (shape) {
case (SR_CONICAL):
return (.2f + .8f * ratio);
case (SR_SPHERICAL):
return (.2f + .8f * sinf(F_PI*ratio));
case (SR_HEMISPHERICAL):
return (.2f + .8f * sinf(.5*F_PI*ratio));
case (SR_CYLINDRICAL):
return (1);
case (SR_TAPERED_CYLINDRICAL):
return (.5f + .5f * ratio);
case (SR_FLAME):
if (ratio <= .7f) {
return ratio/.7f;
} else {
return ((1 - ratio)/.3f);
}
case (SR_INVERSE_CONICAL):
return (1 - .8f * ratio);
case (SR_TEND_FLAME):
if (ratio <= .7) {
return (.5f + .5f*(ratio/.7f));
} else {
return (.5f + .5f * (1 - ratio)/.3f);
}
case (SR_ENVELOPE):
return 1;
default:
return 1;
}
}
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