C++ (Cpp) parent_pivot示例

示例#1

文件： llviewerjointmesh.cpp 项目： OS-Development/VW.Singularity

//-----------------------------------------------------------------------------
// uploadJointMatrices()
//-----------------------------------------------------------------------------
void LLViewerJointMesh::uploadJointMatrices()
{
	S32 joint_num;
	LLPolyMesh *reference_mesh = mMesh->getReferenceMesh();
	LLDrawPool *poolp = mFace ? mFace->getPool() : NULL;
	BOOL hardware_skinning = (poolp && poolp->getVertexShaderLevel() > 0) ? TRUE : FALSE;

	//calculate joint matrices
	for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
	{
		LLMatrix4 joint_mat = *reference_mesh->mJointRenderData[joint_num]->mWorldMatrix;

		if (hardware_skinning)
		{
			joint_mat *= LLDrawPoolAvatar::getModelView();
		}
		gJointMatUnaligned[joint_num] = joint_mat;
		gJointRotUnaligned[joint_num] = joint_mat.getMat3();
	}

	BOOL last_pivot_uploaded = FALSE;
	S32 j = 0;

	//upload joint pivots
	for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
	{
		LLSkinJoint *sj = reference_mesh->mJointRenderData[joint_num]->mSkinJoint;
		if (sj)
		{
			if (!last_pivot_uploaded)
			{
				LLVector4 parent_pivot(sj->mRootToParentJointSkinOffset);
				parent_pivot.mV[VW] = 0.f;
				gJointPivot[j++] = parent_pivot;
			}

			LLVector4 child_pivot(sj->mRootToJointSkinOffset);
			child_pivot.mV[VW] = 0.f;

			gJointPivot[j++] = child_pivot;

			last_pivot_uploaded = TRUE;
		}
		else
		{
			last_pivot_uploaded = FALSE;
		}
	}

	//add pivot point into transform
	for (S32 i = 0; i < j; i++)
	{
		LLVector3 pivot;
		pivot = LLVector3(gJointPivot[i]);
		pivot = pivot * gJointRotUnaligned[i];
		gJointMatUnaligned[i].translate(pivot);
	}

	// upload matrices
	if (hardware_skinning)
	{
		GLfloat mat[45*4];
		memset(mat, 0, sizeof(GLfloat)*45*4);

		for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
		{
			gJointMatUnaligned[joint_num].transpose();

			for (S32 axis = 0; axis < NUM_AXES; axis++)
			{
				F32* vector = gJointMatUnaligned[joint_num].mMatrix[axis];
				U32 offset = LL_CHARACTER_MAX_JOINTS_PER_MESH*axis+joint_num;
				memcpy(mat+offset*4, vector, sizeof(GLfloat)*4);
			}
		}
		stop_glerror();
		if (LLGLSLShader::sCurBoundShaderPtr)
		{
			LLGLSLShader::sCurBoundShaderPtr->uniform4fv(LLViewerShaderMgr::AVATAR_MATRIX, 45, mat);
		}
		stop_glerror();
	}
	else
	{
		//load gJointMatUnaligned into gJointMatAligned
		for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); ++joint_num)
		{
			gJointMatAligned[joint_num].loadu(gJointMatUnaligned[joint_num]);
		}
	}
}

示例#2

文件： llviewerjointmesh.cpp 项目： xinyaojiejie/Dale

//-----------------------------------------------------------------------------
// uploadJointMatrices()
//-----------------------------------------------------------------------------
void LLViewerJointMesh::uploadJointMatrices()
{
	S32 joint_num;
	LLPolyMesh *reference_mesh = mMesh->getReferenceMesh();
	LLDrawPool *poolp = mFace ? mFace->getPool() : NULL;
	BOOL hardware_skinning = (poolp && poolp->getVertexShaderLevel() > 0) ? TRUE : FALSE;

	//calculate joint matrices
	for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
	{
		LLMatrix4 joint_mat = *reference_mesh->mJointRenderData[joint_num]->mWorldMatrix;

		if (hardware_skinning)
		{
			joint_mat *= LLDrawPoolAvatar::getModelView();
		}
		gJointMat[joint_num] = joint_mat;
		gJointRot[joint_num] = joint_mat.getMat3();
	}

	BOOL last_pivot_uploaded = FALSE;
	S32 j = 0;

	//upload joint pivots
	for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
	{
		LLSkinJoint *sj = reference_mesh->mJointRenderData[joint_num]->mSkinJoint;
		if (sj)
		{
			if (!last_pivot_uploaded)
			{
				LLVector4 parent_pivot(sj->mRootToParentJointSkinOffset);
				parent_pivot.mV[VW] = 0.f;
				gJointPivot[j++] = parent_pivot;
			}

			LLVector4 child_pivot(sj->mRootToJointSkinOffset);
			child_pivot.mV[VW] = 0.f;

			gJointPivot[j++] = child_pivot;

			last_pivot_uploaded = TRUE;
		}
		else
		{
			last_pivot_uploaded = FALSE;
		}
	}

	//add pivot point into transform
	for (S32 i = 0; i < j; i++)
	{
		LLVector3 pivot;
		pivot = LLVector3(gJointPivot[i]);
		pivot = pivot * gJointRot[i];
		gJointMat[i].translate(pivot);
	}

	// upload matrices
	if (hardware_skinning)
	{
		GLfloat mat[45*4];
		memset(mat, 0, sizeof(GLfloat)*45*4);

		for (joint_num = 0; joint_num < reference_mesh->mJointRenderData.count(); joint_num++)
		{
			gJointMat[joint_num].transpose();

			for (S32 axis = 0; axis < NUM_AXES; axis++)
			{
				F32* vector = gJointMat[joint_num].mMatrix[axis];
				//glProgramLocalParameter4fvARB(GL_VERTEX_PROGRAM_ARB, LL_CHARACTER_MAX_JOINTS_PER_MESH * axis + joint_num+5, (GLfloat*)vector);
				U32 offset = LL_CHARACTER_MAX_JOINTS_PER_MESH*axis+joint_num;
				memcpy(mat+offset*4, vector, sizeof(GLfloat)*4);
				//glProgramLocalParameter4fvARB(GL_VERTEX_PROGRAM_ARB, LL_CHARACTER_MAX_JOINTS_PER_MESH * axis + joint_num+6, (GLfloat*)vector);
				//cgGLSetParameterArray4f(gPipeline.mAvatarMatrix, offset, 1, vector);
			}
		}
		glUniform4fvARB(gAvatarMatrixParam, 45, mat);
	}
}