lltreeparams.cpp

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#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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