Frustum Camera::get_frustum(float aspect) const {
//calculate the current
mat4 view_proj = get_projection_matrix(aspect) *
SceneObject::get_world_to_local();
Frustum f(view_proj);
return f;
}
const nya_math::mat4 &transform::get_modelviewprojection_matrix() const
{
if(!m_recalc_mvp)
return m_modelviewproj;
m_modelviewproj=m_modelview*get_projection_matrix();
m_recalc_mvp=false;
return m_modelviewproj;
}
//DEBUG
static void render_axes()
{
glUseProgram(0);
glDisable(GL_LIGHTING);
glLineWidth(10.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glLoadTransposeMatrixf(get_projection_matrix().m[0]);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glLoadTransposeMatrixf(get_view_matrix().m[0]);
glBegin(GL_LINES);
glColor3f(1, 0, 0);
glVertex3f(30000, 0, 0);
glVertex3f(-30000, 0, 0);
glEnd();
glBegin(GL_LINES);
glColor3f(0, 1, 0);
glVertex3f(0, -30000, 0);
glVertex3f(0, 30000, 0);
glEnd();
glBegin(GL_LINES);
glColor3f(0, 0, 1);
glVertex3f(0, 0, 30000);
glVertex3f(0, 0, -30000);
glEnd();
glBegin(GL_LINE_LOOP);
for (int i = 0; i < 360; i++){
float degInRad = DEG_TO_RAD(i);
glVertex3f(cos(degInRad) * 10, sin(degInRad) * 10, 0);
}
glEnd();
glBegin(GL_LINE_LOOP);
glColor3f(0, 1, 0);
for (int i = 0; i < 360; i++){
float degInRad = DEG_TO_RAD(i);
glVertex3f(cos(degInRad) * 10, 0, sin(degInRad) * 10);
}
glEnd();
glBegin(GL_LINE_LOOP);
glColor3f(1, 0, 0);
for (int i = 0; i < 360; i++){
float degInRad = DEG_TO_RAD(i);
glVertex3f(0, cos(degInRad) * 10, sin(degInRad) * 10);
}
glEnd();
glEnable(GL_LIGHTING);
}
void transform::set_projection_matrix(const nya_math::mat4 &mat)
{
m_projection=mat, m_recalc_mvp=true;
if(m_has_orientation)
m_orientated_proj=m_projection*m_orientation;
#ifndef MANUAL_MATRICES_ASSIGN
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(get_projection_matrix().m[0]);
#endif
}
void setup_gl_matrices()
{
#ifdef USE_OLDGL
Matrix4x4 modelview = get_world_matrix() * get_view_matrix();
Matrix4x4 proj = get_projection_matrix();
Matrix4x4 tex = get_texture_matrix();
glMatrixMode(GL_TEXTURE);
glLoadTransposeMatrixf(tex[0]);
glMatrixMode(GL_PROJECTION);
glLoadTransposeMatrixf(proj[0]);
glMatrixMode(GL_MODELVIEW);
glLoadTransposeMatrixf(modelview[0]);
#endif
}
void GameScreen::shadow_render_pass(bool ovr, long time)
{
RenderTarget *rtarg;
if (ovr){
rtarg = &game::engine::ovr_manager.get_ovr_render_target();
}
else{
rtarg = &game::engine::rtarg;
}
game::engine::rndr_pass_type = RNDR_PASS_SHADOW;
Matrix4x4 orig_proj = get_projection_matrix();
Matrix4x4 orig_view = get_view_matrix();
Vector3 l_pos = Vector3(500, 500, -500);
Vector3 l_target = -l_pos;
glCullFace(GL_FRONT);
rtarg->bind(RT_SHADOW);
glClearColor(0, 1, 0, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
Matrix4x4 l_proj;
l_proj.set_perspective(DEG_TO_RAD(6.0), 1.0, 600, 890);
set_projection_matrix(l_proj);
glViewport(0, 0, game::engine::rtarg.get_shad_tex_width(), game::engine::rtarg.get_shad_tex_height());
Matrix4x4 l_view;
l_view.set_lookat(l_pos, l_target, Vector3(0, 1, 0));
set_view_matrix(l_view);
shad_mat.reset_identity();
shad_mat = l_proj * l_view;
glColorMask(0, 0, 0, 0);
game::engine::current_sdr = game::engine::depth_pass_sdr;
game::engine::active_stage->render(STAGE_RENDER_ENEMIES, time);
glColorMask(1, 1, 1, 1);
rtarg->unbind();
/*2nd shadow pass*/
game::engine::rtarg2.bind(RT_SHADOW);
glClearColor(0, 1, 0, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
l_proj.reset_identity();
l_proj.set_perspective(DEG_TO_RAD(0.4), 1.0, 600, 890);
set_projection_matrix(l_proj);
glViewport(0, 0, game::engine::rtarg2.get_shad_tex_width(), game::engine::rtarg2.get_shad_tex_height());
l_view.reset_identity();
l_view.set_lookat(l_pos, l_target, Vector3(0, 1, 0));
set_view_matrix(l_view);
shad_mat2.reset_identity();
shad_mat2 = l_proj * l_view;
glColorMask(0, 0, 0, 0);
game::engine::active_stage->render(STAGE_RENDER_GUNS | STAGE_RENDER_COCKPIT, time);
glColorMask(1, 1, 1, 1);
game::engine::rtarg2.unbind();
/*------------------------------------------------------------*/
set_projection_matrix(orig_proj);
set_view_matrix(orig_view);
glViewport(0, 0, game::engine::rtarg.get_fb_width(), game::engine::rtarg.get_fb_height());
glCullFace(GL_BACK);
}
