94 lines
2.1 KiB
Text
94 lines
2.1 KiB
Text
/**
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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 meshDrawer.I
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* @author treeform
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* @date 2008-12-19
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*/
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#include "lpoint2.h"
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/**
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* Creates the MeshDrawer low level system.
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*/
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INLINE MeshDrawer::
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MeshDrawer() {
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_root = NodePath("MeshDrawer");
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_at_start = 0;
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_bv = nullptr;
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_vertex = nullptr;
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_normal = nullptr;
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_uv = nullptr;
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_color = nullptr;
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_budget = 5000;
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_vdata = nullptr;
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}
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/**
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* Destroys the MeshDrawer low level system.
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*/
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INLINE MeshDrawer::
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~MeshDrawer() {
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_root.remove_node();
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if (_vertex != nullptr) delete _vertex;
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if (_normal != nullptr) delete _normal;
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if (_uv != nullptr) delete _uv;
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if (_color != nullptr) delete _color;
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}
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/**
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* Returns the root NodePath. You should use this node to reparent mesh
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* drawer onto the scene might also want to disable depth draw or enable
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* transparency.
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*/
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INLINE NodePath MeshDrawer::
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get_root() {
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return _root;
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}
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/**
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* Sets the total triangle budget of the drawer. This will not be exceeded.
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* Don't set some thing too large because it will be slow
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*/
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INLINE void MeshDrawer::
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set_budget(int total_budget) {
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_budget = total_budget;
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generator(_budget);
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}
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/**
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* Gets the total triangle budget of the drawer
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*/
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INLINE int MeshDrawer::
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get_budget() {
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return _budget;
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}
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/**
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* Draws a triangle with the given parameters.
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*/
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INLINE void MeshDrawer::tri(const LVector3 &v1, const LVector4 &c1, const LVector2 &uv1,
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const LVector3 &v2, const LVector4 &c2, const LVector2 &uv2,
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const LVector3 &v3, const LVector4 &c3, const LVector2 &uv3) {
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if( _clear_index > _end_clear_index) return;
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_vertex->add_data3(v1);
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_color->add_data4(c1);
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_uv->add_data2(uv1);
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_vertex->add_data3(v2);
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_color->add_data4(c2);
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_uv->add_data2(uv2);
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_vertex->add_data3(v3);
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_color->add_data4(c3);
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_uv->add_data2(uv3);
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_clear_index += 1;
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}
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