当前位置: 首页>>代码示例>>C++>>正文


C++ LLStrider::set方法代码示例

本文整理汇总了C++中LLStrider::set方法的典型用法代码示例。如果您正苦于以下问题:C++ LLStrider::set方法的具体用法?C++ LLStrider::set怎么用?C++ LLStrider::set使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在LLStrider的用法示例。


在下文中一共展示了LLStrider::set方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: getGeometry

void LLVOPartGroup::getGeometry(S32 idx,
								LLStrider<LLVector3>& verticesp,
								LLStrider<LLVector3>& normalsp, 
								LLStrider<LLVector2>& texcoordsp,
								LLStrider<LLColor4U>& colorsp, 
								LLStrider<U16>& indicesp)
{
	if (idx >= (S32) mViewerPartGroupp->mParticles.size())
	{
		return;
	}

	const LLViewerPart &part = *((LLViewerPart*) (mViewerPartGroupp->mParticles[idx]));

	U32 vert_offset = mDrawable->getFace(idx)->getGeomIndex();

	
	LLVector4a part_pos_agent;
	part_pos_agent.load3(part.mPosAgent.mV);
	LLVector4a camera_agent;
	camera_agent.load3(getCameraPosition().mV); 
	LLVector4a at;
	at.setSub(part_pos_agent, camera_agent);
	LLVector4a up(0, 0, 1);
	LLVector4a right;

	right.setCross3(at, up);
	right.normalize3fast();
	up.setCross3(right, at);
	up.normalize3fast();

	if (part.mFlags & LLPartData::LL_PART_FOLLOW_VELOCITY_MASK)
	{
		LLVector4a normvel;
		normvel.load3(part.mVelocity.mV);
		normvel.normalize3fast();
		LLVector2 up_fracs;
		up_fracs.mV[0] = normvel.dot3(right).getF32();
		up_fracs.mV[1] = normvel.dot3(up).getF32();
		up_fracs.normalize();
		LLVector4a new_up;
		LLVector4a new_right;

		//new_up = up_fracs.mV[0] * right + up_fracs.mV[1]*up;
		LLVector4a t = right;
		t.mul(up_fracs.mV[0]);
		new_up = up;
		new_up.mul(up_fracs.mV[1]);
		new_up.add(t);

		//new_right = up_fracs.mV[1] * right - up_fracs.mV[0]*up;
		t = right;
		t.mul(up_fracs.mV[1]);
		new_right = up;
		new_right.mul(up_fracs.mV[0]);
		t.sub(new_right);

		up = new_up;
		right = t;
		up.normalize3fast();
		right.normalize3fast();
	}

	right.mul(0.5f*part.mScale.mV[0]);
	up.mul(0.5f*part.mScale.mV[1]);


	LLVector3 normal = -LLViewerCamera::getInstance()->getXAxis();

	//HACK -- the verticesp->mV[3] = 0.f here are to set the texture index to 0 (particles don't use texture batching, maybe they should)
	// this works because there is actually a 4th float stored after the vertex position which is used as a texture index
	// also, somebody please VECTORIZE THIS

	LLVector4a ppapu;
	LLVector4a ppamu;

	ppapu.setAdd(part_pos_agent, up);
	ppamu.setSub(part_pos_agent, up);

	LLVector4a vtx[4];
	vtx[0].setSub(ppapu, right);
	vtx[1].setSub(ppamu, right);
	vtx[2].setAdd(ppapu, right);
	vtx[3].setAdd(ppamu, right);

	verticesp->set(vtx[0].getF32ptr());
	*((verticesp++)->mV+3) = 0.f;
	verticesp->set(vtx[1].getF32ptr());
	*((verticesp++)->mV+3) = 0.f;
	verticesp->set(vtx[2].getF32ptr());
	*((verticesp++)->mV+3) = 0.f;
	verticesp->set(vtx[3].getF32ptr());
	*((verticesp++)->mV+3) = 0.f;

	//*verticesp++ = part_pos_agent + up - right;
	//*verticesp++ = part_pos_agent - up - right;
	//*verticesp++ = part_pos_agent + up + right;
	//*verticesp++ = part_pos_agent - up + right;

	*colorsp++ = part.mColor;
//.........这里部分代码省略.........
开发者ID:Logear,项目名称:PartyHatViewer,代码行数:101,代码来源:llvopartgroup.cpp


注:本文中的LLStrider::set方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。