53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
/*
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Copyright (c) 2013 yvt
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This file is part of OpenSpades.
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OpenSpades is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenSpades is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "GLDynamicLight.h"
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namespace spades {
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namespace draw {
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GLDynamicLight::GLDynamicLight(const client::DynamicLightParam& param):
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param(param){
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if(param.type == client::DynamicLightTypeSpotlight){
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float t = tanf(param.spotAngle * .5f) * 2.f;
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Matrix4 mat;
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mat = Matrix4::FromAxis(param.spotAxis[0],
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param.spotAxis[1],
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param.spotAxis[2],
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param.origin);
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mat = mat * Matrix4::Scale(t, t, 1.f);
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projMatrix = mat.InversedFast();
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Matrix4 m = Matrix4::Identity();
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m.m[15] = 0.f;
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m.m[11] = 1.f;
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m.m[8] += .5f;
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m.m[9] += .5f;
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projMatrix = m * projMatrix;
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}
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}
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}
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}
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