void Projectile::Render(Graphics::Renderer *renderer, const Camera *camera, const vector3d &viewCoords, const matrix4x4d &viewTransform)
{
vector3d _from = viewTransform * GetInterpPosition();
vector3d _to = viewTransform * (GetInterpPosition() + m_dirVel);
vector3d _dir = _to - _from;
vector3f from(&_from.x);
vector3f dir = vector3f(_dir).Normalized();
vector3f v1, v2;
matrix4x4f m = matrix4x4f::Identity();
v1.x = dir.y; v1.y = dir.z; v1.z = dir.x;
v2 = v1.Cross(dir).Normalized();
v1 = v2.Cross(dir);
m[0] = v1.x; m[4] = v2.x; m[8] = dir.x;
m[1] = v1.y; m[5] = v2.y; m[9] = dir.y;
m[2] = v1.z; m[6] = v2.z; m[10] = dir.z;
m[12] = from.x;
m[13] = from.y;
m[14] = from.z;
// increase visible size based on distance from camera, z is always negative
// allows them to be smaller while maintaining visibility for game play
const float dist_scale = float(viewCoords.z / -500);
const float length = Equip::lasers[m_type].length + dist_scale;
const float width = Equip::lasers[m_type].width + dist_scale;
renderer->SetTransform(m * matrix4x4f::ScaleMatrix(width, width, length));
Color color = Equip::lasers[m_type].color;
// fade them out as they age so they don't suddenly disappear
// this matches the damage fall-off calculation
const float base_alpha = sqrt(1.0f - m_age/Equip::lasers[m_type].lifespan);
// fade out side quads when viewing nearly edge on
vector3f view_dir = vector3f(viewCoords).Normalized();
color.a = (base_alpha * (1.f - powf(fabs(dir.Dot(view_dir)), length))) * 255;
if (color.a > 3) {
s_sideMat->diffuse = color;
renderer->DrawTriangles(s_sideVerts.get(), s_renderState, s_sideMat.get());
}
// fade out glow quads when viewing nearly edge on
// these and the side quads fade at different rates
// so that they aren't both at the same alpha as that looks strange
color.a = (base_alpha * powf(fabs(dir.Dot(view_dir)), width)) * 255;
if (color.a > 3) {
s_glowMat->diffuse = color;
renderer->DrawTriangles(s_glowVerts.get(), s_renderState, s_glowMat.get());
}
}
void ModelBody::RenderModel(Graphics::Renderer *r, const vector3d &viewCoords, const matrix4x4d &viewTransform)
{
matrix4x4d m2 = GetInterpOrient();
m2.SetTranslate(GetInterpPosition());
matrix4x4d t = viewTransform * m2;
glPushMatrix(); // Otherwise newmodels leave a dirty matrix
matrix4x4f trans;
for (int i=0; i<12; i++) trans[i] = float(t[i]);
trans[12] = viewCoords.x;
trans[13] = viewCoords.y;
trans[14] = viewCoords.z;
trans[15] = 1.0f;
m_model->Render(trans);
glPopMatrix();
}
void ModelBody::RenderModel(Graphics::Renderer *r, const Camera *camera, const vector3d &viewCoords, const matrix4x4d &viewTransform, const bool setLighting)
{
std::vector<Graphics::Light> oldLights;
Color oldAmbient;
if (setLighting)
SetLighting(r, camera, oldLights, oldAmbient);
matrix4x4d m2 = GetInterpOrient();
m2.SetTranslate(GetInterpPosition());
matrix4x4d t = viewTransform * m2;
glPushMatrix(); // Otherwise newmodels leave a dirty matrix
matrix4x4f trans;
for (int i=0; i<12; i++) trans[i] = float(t[i]);
trans[12] = viewCoords.x;
trans[13] = viewCoords.y;
trans[14] = viewCoords.z;
trans[15] = 1.0f;
m_model->Render(trans);
glPopMatrix();
if (setLighting)
ResetLighting(r, oldLights, oldAmbient);
}
vector3d Body::GetInterpPositionRelTo(const Frame *relTo) const
{
vector3d fpos = m_frame->GetInterpPositionRelTo(relTo);
matrix3x3d forient = m_frame->GetInterpOrientRelTo(relTo);
return forient * GetInterpPosition() + fpos;
}
