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04d814ee31
New AbsPosUpdateBehavior which makes updateAbsolutePosition calls behave as if a node had no parent. Allows for micro optimizations in cases where we have non-moving root node (all scenenodes are always added to the SceneManager which is generally not moved but it's transformation is still multiplied each frame for each node) As a side-effect this also allows abusing the SceneManager to group objects without affecting transformations. No real extra cost since I added ESNUA_TRANSFORM_POSITION already. Thought turns out those matrix transformations are so fast that I also didn't noticed any difference in tests with > 20.000 nodes. git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6481 dfc29bdd-3216-0410-991c-e03cc46cb475
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef IRR_E_SCENE_NODE_UPDATE_ABS_H_INCLUDED
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#define IRR_E_SCENE_NODE_UPDATE_ABS_H_INCLUDED
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namespace irr
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{
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namespace scene
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{
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//! Options how ISceneNode::updateAbsolutePosition calculates the AbsoluteTransformation
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enum ESCENE_NODE_UPDATE_ABS
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{
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//! Node and parent transformation matrices are multiplied (default)
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ESNUA_TRANSFORM_MATRIX,
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//! Only transform the position of the node transformation matrix
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//! by the parent transformation matrix.
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//! Parent will not affect the rotation/scale of the node transformation.
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ESNUA_TRANSFORM_POSITION,
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//! Use the relative matrix as absolute transformation matrix
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//! Parent node transformation is ignored just like when the parent is set to 0
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ESNUA_RELATIVE
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};
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//! Names for culling type
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const c8* const SceneNodeUpdateAbsNames[] =
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{
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"matrix",
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"pos",
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"relative",
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0
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};
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} // end namespace scene
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} // end namespace irr
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#endif
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