void App::render(CL_GraphicContext &gc)
{
gc.clear(CL_Colorf(0.0f, 0.0f, 0.0f, 1.0f));
scene.gs->image_grid.draw(gc, 420.0f, 120.0f); // Draw a grid in the backgound
gc.set_map_mode(cl_user_projection);
CL_Rect viewport_rect(0, 0, CL_Size(gc.get_width(), gc.get_height()));
gc.set_viewport(viewport_rect);
gc.set_projection(scene.gs->camera_projection);
CL_BufferControl buffer_control;
buffer_control.set_depth_compare_function(cl_comparefunc_lequal);
buffer_control.enable_depth_write(true);
buffer_control.enable_depth_test(true);
buffer_control.enable_stencil_test(false);
buffer_control.enable_color_write(true);
gc.set_buffer_control(buffer_control);
gc.clear_depth(1.0f);
CL_Mat4f modelview_matrix = scene.gs->camera_modelview;
scene.Draw(modelview_matrix, gc);
gc.reset_program_object();
}
void App::render_from_lightsource(CL_GraphicContext &gc, CL_FrameBuffer &framebuffer)
{
CL_PrimitivesArray prim_array(gc);
gc.set_frame_buffer(framebuffer);
gc.set_map_mode(cl_user_projection);
CL_Rect viewport_rect2(0, 0, CL_Size(scene.gs->texture_shadow.get_width(), scene.gs->texture_shadow.get_height()));
gc.set_viewport(viewport_rect2);
CL_Mat4f perp = CL_Mat4f::perspective(67.0f, 1.0f, 0.1f, 1000.0f);
gc.set_projection(scene.gs->light_projection);
CL_BufferControl buffer_control;
buffer_control.set_depth_compare_function(cl_comparefunc_lequal);
buffer_control.enable_depth_write(true);
buffer_control.enable_depth_test(true);
buffer_control.enable_stencil_test(false);
buffer_control.enable_color_write(false);
gc.set_buffer_control(buffer_control);
gc.clear_depth(1.0f);
CL_Mat4f modelview_matrix = scene.gs->light_modelview;
scene.Draw(modelview_matrix, gc, true);
gc.reset_program_object();
gc.set_modelview(CL_Mat4f::identity());
gc.set_map_mode(CL_MapMode(cl_map_2d_upper_left));
gc.reset_frame_buffer();
}
void App::set_user_projection(CL_GraphicContext &gc, CL_Sizef &area_size, Options *options)
{
gc.set_viewport(CL_Rectf(0, 0, area_size));
float lens_zoom = 3.2f;
float lens_near = 0.1f;
float lens_far = 10000.0f;
float lens_aspect = 1.0f;
float fov = 2.0f * atan2(1.0f, lens_zoom);
float aspect = 1.0f;
aspect = ( area_size.width * lens_aspect) / area_size.height;
fov = (fov * 180.0f) / CL_PI;
CL_Mat4f projection_matrix = CL_Mat4f::perspective( fov, aspect, lens_near, lens_far);
gc.set_projection(projection_matrix);
CL_Mat4f modelview_matrix = CL_Mat4f::identity();
modelview_matrix.scale_self(1.0f, 1.0f, -1.0f); // So positive Z goes into the screen
modelview_matrix.translate_self(-1.0f, 1.0, lens_zoom);
modelview_matrix = modelview_matrix.multiply(CL_Mat4f::rotate(CL_Angle((float) -options->grid_angle, cl_degrees), 1.0f, 0.0f, 0.0f, false));
modelview_matrix.scale_self(2.0f / area_size.width, -2.0f / area_size.height, 1.0f);
modelview_matrix.translate_self(cl_pixelcenter_constant,cl_pixelcenter_constant, 0.0f);
gc.set_modelview(modelview_matrix);
}
void App::render_depth_buffer(CL_GraphicContext &gc)
{
gc.set_map_mode(cl_user_projection);
gc.set_viewport(scene.gs->texture_depth.get_size());
gc.set_projection(scene.gs->camera_projection);
CL_BufferControl buffer_control;
buffer_control.set_depth_compare_function(cl_comparefunc_lequal);
buffer_control.enable_depth_write(true);
buffer_control.enable_depth_test(true);
buffer_control.enable_stencil_test(false);
buffer_control.enable_color_write(false);
gc.set_buffer_control(buffer_control);
CL_Mat4f modelview_matrix = scene.gs->camera_modelview;
scene.Draw(modelview_matrix, gc);
gc.reset_program_object();
}
