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ParticleSystem: Added support for GLES2 and upper (GL_QUADS -> GL_TRIANGLES)

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This commit is contained in:
Konstantin S. Matveyev 2018-09-05 14:00:09 +03:00
parent 6ae1139630
commit f00b7180cb
1 changed files with 27 additions and 15 deletions
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42
src/osgParticle/ParticleSystem.cpp
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@ -394,29 +394,41 @@ void osgParticle::ParticleSystem::drawImplementation(osg::RenderInfo& renderInfo
case osgParticle::Particle::HEXAGON:
case osgParticle::Particle::QUAD:
{
vertices.push_back(xpos-p1-p2);
colors.push_back(color);
texcoords.push_back(osg::Vec2(s_coord, t_coord));
osg::Vec3 c0(xpos-p1-p2);
osg::Vec2 t0(s_coord, t_coord);
osg::Vec3 c1(xpos+p1-p2);
osg::Vec2 t1(s_coord+s_tile, t_coord);
osg::Vec3 c2(xpos+p1+p2);
osg::Vec2 t2(s_coord+s_tile, t_coord+t_tile);
osg::Vec3 c3(xpos-p1+p2);
osg::Vec2 t3(s_coord, t_coord+t_tile);
vertices.push_back(xpos+p1-p2);
colors.push_back(color);
texcoords.push_back(osg::Vec2(s_coord+s_tile, t_coord));
// first triangle
vertices.push_back(c0);
vertices.push_back(c1);
vertices.push_back(c2);
texcoords.push_back(t0);
texcoords.push_back(t1);
texcoords.push_back(t2);
vertices.push_back(xpos+p1+p2);
colors.push_back(color);
texcoords.push_back(osg::Vec2(s_coord+s_tile, t_coord+t_tile));
// second triangle
vertices.push_back(c2);
vertices.push_back(c3);
vertices.push_back(c0);
texcoords.push_back(t2);
texcoords.push_back(t3);
texcoords.push_back(t0);
vertices.push_back(xpos-p1+p2);
colors.push_back(color);
texcoords.push_back(osg::Vec2(s_coord, t_coord+t_tile));
for (int j = 0; j < 6; ++j)
colors.push_back(color);
if (!primitives.empty() && primitives.back().first==GL_QUADS)
if (!primitives.empty() && primitives.back().first==GL_TRIANGLES)
{
primitives.back().second+=4;
primitives.back().second+=6;
}
else
{
primitives.push_back(ArrayData::ModeCount(GL_QUADS,4));
primitives.push_back(ArrayData::ModeCount(GL_TRIANGLES,6));
}
break;