void Surface::clear()
{
flags = 0;
lightMapId = 0;
textureName = "";
uvOffset.set(0.0f,0.0f);
uvScale.set(0.0f,0.0f);
uvRotation = 0.0f;
triangles.clear();
lines.clear();
vertices.clear();
}
void Surface::clear()
{
flags = 0;
lightMapId = 0;
textureName = "";
uvOffset.set(0.0f,0.0f);
uvScale.set(0.0f,0.0f);
uvRotation = 0.0f;
triangles.clear();
lines.clear();
for(u32 v = 0; v < vertices.size(); v++)
delete vertices[v];
vertices.clear();
}
/* Every time it gets drawn, this function gets called */
void CLensFlareSceneNode::render()
{
video::IVideoDriver* driver = SceneManager->getVideoDriver();
ICameraSceneNode* camera = SceneManager->getActiveCamera();
// Bail out if function dosn't have enough info
// Will fail here if no textures supplied
if (!camera || !driver || !Material.getTexture(0))
return;
driver->setTransform(video::ETS_WORLD, core::matrix4());
const core::vector3df campos = camera->getAbsolutePosition();
const core::dimension2d<u32> sz = SceneManager->getVideoDriver()->getScreenSize();
const core::vector2df mid = core::vector2df((f32)sz.Width, (f32)sz.Height) * 0.5f;
const core::position2di lp = SceneManager->getSceneCollisionManager()->
getScreenCoordinatesFrom3DPosition(getAbsolutePosition(), camera);
const core::vector2df lightpos = core::vector2df((f32)lp.X, (f32)lp.Y);
const u32 nframes = Material.getTexture(0)->getOriginalSize().Width /
Material.getTexture(0)->getOriginalSize().Height;
int texw = 8;
float texp = 1.0f / nframes;
core::vector3df target = camera->getTarget();
core::vector3df up = camera->getUpVector();
core::vector3df view = target - campos;
view.normalize();
core::vector3df horizontal = up.crossProduct(view);
horizontal.normalize();
core::vector3df vertical;
vertical = horizontal.crossProduct(view);
vertical.normalize();
view *= -1.0f;
for (u32 i=0; i<4; ++i)
vertices[i].Normal = view;
driver->setMaterial(Material);
core::vector3df pos;
core::vector3df hor;
core::vector3df ver;
for (u32 ax = 0; ax < nframes; ++ax)
{
if (ax == 0 )
{
pos = getAbsolutePosition();
texw = Material.getTexture(0)->getSize().Height;
hor = horizontal * (sourceScale * texw);
ver = vertical * (sourceScale * texw);
}
else
{
core::vector2df ipos = mid.getInterpolated(lightpos, (2.0f / nframes) * ax);
pos = SceneManager->getSceneCollisionManager()->getRayFromScreenCoordinates(
core::position2d<s32>(int(ipos.X ), int(ipos.Y ) ), camera).end;
core::vector3df dir = core::vector3df(campos - pos).normalize();
pos = campos + (dir * -10.0f);
texw = 4;
hor = horizontal * (opticsScale * texw);
ver = vertical * (opticsScale * texw);
}
vertices[0].TCoords.set( ax * texp, 1.0f);
vertices[1].TCoords.set( ax * texp, 0.0f);
vertices[2].TCoords.set((ax+1) * texp, 0.0f);
vertices[3].TCoords.set((ax+1) * texp, 1.0f);
vertices[0].Pos = pos + hor + ver;
vertices[1].Pos = pos + hor - ver;
vertices[2].Pos = pos - hor - ver;
vertices[3].Pos = pos - hor + ver;
driver->drawIndexedTriangleList(vertices, 4, indices, 2);
}
}
