90 lines
2.7 KiB
Text
90 lines
2.7 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file multitexReducer.I
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* @author drose
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* @date 2004-11-30
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*/
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/**
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* Starts scanning the hierarchy beginning at the indicated node. Any
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* GeomNodes discovered in the hierarchy with multitexture will be added to
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* internal structures in the MultitexReducer so that a future call to
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* flatten() will operate on all of these at once.
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*
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* This version of this method does not accumulate state from the parents of
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* the indicated node; thus, only multitexture effects that have been applied
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* at node and below will be considered.
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*/
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INLINE void MultitexReducer::
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scan(const NodePath &node) {
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scan(node.node(), RenderState::make_empty(), TransformState::make_identity());
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}
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/**
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* Starts scanning the hierarchy beginning at the indicated node. Any
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* GeomNodes discovered in the hierarchy with multitexture will be added to
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* internal structures in the MultitexReducer so that a future call to
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* flatten() will operate on all of these at once.
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*
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* The second parameter represents the NodePath from which to accumulate the
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* state that is considered for the multitexture. Pass an empty NodePath to
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* accumulate all the state from the root of the graph, or you may specify
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* some other node here in order to not consider nodes above that as
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* contributing to the state to be flattened. This is particularly useful if
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* you have some texture stage which is applied globally to a scene (for
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* instance, a caustics effect), which you don't want to be considered for
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* flattening by the MultitexReducer.
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*/
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INLINE void MultitexReducer::
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scan(const NodePath &node, const NodePath &state_from) {
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scan(node.node(), node.get_parent().get_state(state_from),
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node.get_parent().get_transform(state_from));
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}
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/**
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*
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*/
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INLINE bool MultitexReducer::StageInfo::
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operator < (const MultitexReducer::StageInfo &other) const {
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if (_stage != other._stage) {
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return _stage < other._stage;
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}
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if (_tex != other._tex) {
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return _tex < other._tex;
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}
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if (_tex_mat != other._tex_mat) {
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return _tex_mat->compare_to(*other._tex_mat, true) < 0;
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}
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return false;
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}
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/**
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*
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*/
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INLINE MultitexReducer::GeomInfo::
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GeomInfo(const RenderState *state, const RenderState *geom_net_state,
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GeomNode *geom_node, int index) :
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_state(state),
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_geom_net_state(geom_net_state),
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_geom_node(geom_node),
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_index(index)
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{
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}
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/**
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*
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*/
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INLINE MultitexReducer::GeomNodeInfo::
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GeomNodeInfo(const RenderState *state, GeomNode *geom_node) :
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_state(state),
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_geom_node(geom_node)
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{
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}
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