public STrailsEmitter(STrailsParameters tParams,
PositionFunc posFunc, FwdFunc fwdDirFunc)
{
this.trailParams = tParams;
this.posFunc = posFunc;
this.fwdDirFunc = fwdDirFunc;
base.life = tParams.trailLifetime;
base.emissionInterval = tParams.trailsEmissionInterval;
base.velocity = Vector3.Zero;
base.color = new Color4(1f, 1f, 1f, 0.3f);
}
public STrailsRenderer(PositionFunc positonFunc, FwdFunc fwdDirFunc, UpFunc upFunc,
STrailsParameters trailsParams = null)
: base(new STrailsData(positonFunc, fwdDirFunc, upFunc,
trailsParams ?? new STrailsParameters()),
SSTexturedCube.Instance, _defaultUsageHint)
{
trailsParams = trailsData.trailsParams;
var tex = SSAssetManager.GetInstance <SSTextureWithAlpha>(trailsParams.textureFilename);
renderState.castsShadow = false;
renderState.receivesShadows = false;
renderState.doBillboarding = false;
renderState.alphaBlendingOn = true;
//renderState.alphaBlendingOn = false;
renderState.depthTest = true;
renderState.depthWrite = false;
renderState.lighted = false;
renderState.blendEquationModeRGB = BlendEquationMode.FuncAdd;
renderState.blendFactorSrcRGB = BlendingFactorSrc.SrcAlpha;
//renderState.blendFactorDestRGB = BlendingFactorDest.DstAlpha;
renderState.blendFactorDestRGB = BlendingFactorDest.OneMinusSrc1Alpha;
renderState.blendEquationModeAlpha = BlendEquationMode.FuncAdd;
renderState.blendFactorSrcAlpha = BlendingFactorSrc.One;
renderState.blendFactorDestAlpha = BlendingFactorDest.One;
//renderState.blendFactorSrcAlpha = BlendingFactorSrc.SrcAlpha;
renderState.blendFactorDestAlpha = BlendingFactorDest.OneMinusSrcAlpha;
simulateOnUpdate = false;
simulateOnRender = true;
renderState.frustumCulling = true;
colorMaterial = SSColorMaterial.pureAmbient;
textureMaterial = new SSTextureMaterial(diffuse: tex);
Name = "simple trails renderer";
//this.MainColor = Color4Helper.RandomDebugColor();
this.renderMode = RenderMode.GpuInstancing;
}
//protected readonly STrailUpdater _updater;
#endregion
public STrailsData(
PositionFunc positionFunc, FwdFunc fwdDirFunc, UpFunc upFunc,
STrailsParameters trailsParams = null)
: base(trailsParams.capacity)
{
this.trailsParams = trailsParams;
this._positionFunc = positionFunc;
this._fwdFunc = fwdDirFunc;
this._upFunc = upFunc;
_headSegmentIdxs = new ushort[trailsParams.numJets];
_tailSegmentIdxs = new ushort[trailsParams.numJets];
_prevSplineIntervalEndPos = new Vector3[trailsParams.numJets];
_prevSplineIntervalEndSlope = new Vector3[trailsParams.numJets];
_localJetOrients = new Matrix4[trailsParams.numJets];
Vector3 pos = _positionFunc();
Vector3 fwd = _fwdFunc();
Vector3 up = _upFunc();
Vector3 right = Vector3.Cross(fwd, up);
Matrix4 globalOrient = new Matrix4(
new Vector4(right, 0f),
new Vector4(up, 0f),
new Vector4(fwd, 0f),
new Vector4(0f, 0f, 0f, 1f));
for (int i = 0; i < trailsParams.numJets; ++i)
{
_headSegmentIdxs[i] = STrailsSegment.NotConnected;
_tailSegmentIdxs[i] = STrailsSegment.NotConnected;
Vector3 localFwd = trailsParams.localJetDir(i);
_localJetOrients[i] = OpenTKHelper.neededRotationMat(-Vector3.UnitZ, localFwd);
jetTxfm(i, ref pos, ref globalOrient,
out _prevSplineIntervalEndPos[i], out _prevSplineIntervalEndSlope[i]);
}
_outerColorEffector = new SSColorKeyframesEffector(trailsParams.outerColorKeyframes)
{
particleLifetime = trailsParams.trailLifetime,
};
addEffector(_outerColorEffector);
_innerColorEffector = new STrailsInnerColorEffector(trailsParams.innerColorKeyframes)
{
particleLifetime = trailsParams.trailLifetime,
};
addEffector(_innerColorEffector);
_innerRatioEffector = new STrailsInnerColorRatioEffector(trailsParams.innerColorRatioKeyframes)
{
particleLifetime = trailsParams.trailLifetime,
};
addEffector(_innerRatioEffector);
_outerRatioEffector = new STrailsOuterColorRatioEffector(trailsParams.outerColorRatioKeyframes)
{
particleLifetime = trailsParams.trailLifetime,
};
addEffector(_outerRatioEffector);
_widthEffector = new STrailsWidthEffector(trailsParams.widthKeyFrames)
{
particleLifetime = trailsParams.trailLifetime,
};
addEffector(_widthEffector);
//_updater = new STrailUpdater(trailsParams);
//addEffector(_updater);
}
