67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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QGLView
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Copyright (C) 2017 Ivan Pelipenko peri4ko@yandex.ru
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This program 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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This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "rope_system.h"
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#include "qglview.h"
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RopeSystem::RopeSystem(): GLObjectBase(), fbo(2, false, GL_RGBA16F, GL_TEXTURE_1D) {
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tex[0] = tex[1] = tex[2] = 0;
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}
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RopeSystem::~RopeSystem() {
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}
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void RopeSystem::init() {
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pos.clear();
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for (int i = 0; i < 1024; ++i)
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pos << (i - 512) / 51.2f << 0.f << 20.f << 0.1f;
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deleteGLTexture(tex[0]);
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deleteGLTexture(tex[1]);
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deleteGLTexture(tex[2]);
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glGenTextures(3, tex);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_1D, tex[0]);
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glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA16F, 1024, 0, GL_RGBA, GL_FLOAT, pos.constData());
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glBindTexture(GL_TEXTURE_1D, tex[1]);
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glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA16F, 1024, 0, GL_RGBA, GL_FLOAT, pos.constData());
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glBindTexture(GL_TEXTURE_1D, tex[2]);
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glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA16F, 1024, 0, GL_RGBA, GL_FLOAT, pos.constData());
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}
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void RopeSystem::draw(QGLShaderProgram * prog, bool simplest) {
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_1D, tex[0]);
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glGetTexImage(GL_TEXTURE_1D, 0, GL_RGBA, GL_FLOAT, pos.data());
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glColor3f(1.f, 1.f, 1.f);
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glBegin(GL_LINE_STRIP);
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int ind = 0;
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for (int i = 0; i < 1024; ++i) {
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ind = i * 4;
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glVertex3f(pos[ind], pos[ind + 1], pos[ind + 2]);
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}
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glEnd();
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/*((QGLView * )view_)->shader_rope->bind();
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((QGLView * )view_)->shader_rope->setUniformValue("t0", 0);
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((QGLView * )view_)->shader_rope->setUniformValue("dt", 1.f / 1024.f);
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((QGLView * )view_)->shader_rope->release();*/
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}
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