81 lines
2.7 KiB
Plaintext
81 lines
2.7 KiB
Plaintext
// Filename: shaderTransition.I
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// Created by: drose (24Mar00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#include <algorithm>
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////////////////////////////////////////////////////////////////////
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// Function: ShaderTransition::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE ShaderTransition::
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ShaderTransition() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: set_shader
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// Description: An external function, handy for setting shaders
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// directly onto arcs. This will add the indicated
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// shader to an existing ShaderTransition, or create a
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// new ShaderTransition if necessary.
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////////////////////////////////////////////////////////////////////
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INLINE bool
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set_shader(NodeRelation *arc, Shader *shader) {
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ShaderTransition *st;
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if (get_transition_into(st, arc)) {
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return st->set_shader(shader);
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}
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st = new ShaderTransition;
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st->set_shader(shader);
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arc->set_transition(st);
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return true;
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}
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////////////////////////////////////////////////////////////////////
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// Function: clear_shader
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// Description: An external function, handy for setting shaders
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// directly onto arcs. This will remove the indicated
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// shader from the existing ShaderTransition, if there
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// is one.
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////////////////////////////////////////////////////////////////////
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INLINE bool
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clear_shader(NodeRelation *arc, Shader *shader) {
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ShaderTransition *st;
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if (get_transition_into(st, arc)) {
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return st->clear_shader(shader);
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}
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return false;
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}
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////////////////////////////////////////////////////////////////////
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// Function: has_shader
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// Description: An external function, handy for setting shaders
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// directly onto arcs. This returns true if there
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// exists a ShaderTransition and it contains the
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// indicated shader, false otherwise.
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////////////////////////////////////////////////////////////////////
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INLINE bool
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has_shader(const NodeRelation *arc, Shader *shader) {
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const ShaderTransition *st;
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if (get_transition_into(st, arc)) {
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return st->has_shader(shader);
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}
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return false;
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}
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