void opengl_post_lightshafts()
{
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_LIGHTSHAFTS, 0));
float x, y;
// should we even be here?
if ( !Game_subspace_effect && ls_on && !ls_force_off ) {
int n_lights = light_get_global_count();
for ( int idx = 0; idx<n_lights; idx++ ) {
vec3d light_dir;
vec3d local_light_dir;
light_get_global_dir(&light_dir, idx);
vm_vec_rotate(&local_light_dir, &light_dir, &Eye_matrix);
if ( !stars_sun_has_glare(idx) ) {
continue;
}
float dot;
if ( (dot = vm_vec_dot(&light_dir, &Eye_matrix.vec.fvec)) > 0.7f ) {
x = asinf(vm_vec_dot(&light_dir, &Eye_matrix.vec.rvec)) / PI*1.5f + 0.5f; //cant get the coordinates right but this works for the limited glare fov
y = asinf(vm_vec_dot(&light_dir, &Eye_matrix.vec.uvec)) / PI*1.5f*gr_screen.clip_aspect + 0.5f;
Current_shader->program->Uniforms.setUniform2f("sun_pos", x, y);
Current_shader->program->Uniforms.setUniformi("scene", 0);
Current_shader->program->Uniforms.setUniformi("cockpit", 1);
Current_shader->program->Uniforms.setUniformf("density", ls_density);
Current_shader->program->Uniforms.setUniformf("falloff", ls_falloff);
Current_shader->program->Uniforms.setUniformf("weight", ls_weight);
Current_shader->program->Uniforms.setUniformf("intensity", Sun_spot * ls_intensity);
Current_shader->program->Uniforms.setUniformf("cp_intensity", Sun_spot * ls_cpintensity);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Cockpit_depth_texture);
GL_state.Blend(GL_TRUE);
GL_state.SetAlphaBlendMode(ALPHA_BLEND_ADDITIVE);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Blend(GL_FALSE);
break;
}
}
}
if ( zbuffer_saved ) {
zbuffer_saved = false;
gr_zbuffer_set(GR_ZBUFF_FULL);
glClear(GL_DEPTH_BUFFER_BIT);
gr_zbuffer_set(GR_ZBUFF_NONE);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, Scene_depth_texture, 0);
}
}
void gr_opengl_post_process_end()
{
// state switch just the once (for bloom pass and final render-to-screen)
GLboolean depth = GL_state.DepthTest(GL_FALSE);
GLboolean depth_mask = GL_state.DepthMask(GL_FALSE);
GLboolean lighting = GL_state.Lighting(GL_FALSE);
GLboolean blend = GL_state.Blend(GL_FALSE);
GLboolean cull = GL_state.CullFace(GL_FALSE);
GL_state.Texture.SetShaderMode(GL_TRUE);
// Do FXAA
if (Cmdline_fxaa && !fxaa_unavailable && !GL_rendering_to_texture) {
opengl_post_pass_fxaa();
}
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_LIGHTSHAFTS, 0) );
float x,y;
// should we even be here?
if (!Game_subspace_effect && ls_on && !ls_force_off)
{
int n_lights = light_get_global_count();
for(int idx=0; idx<n_lights; idx++)
{
vec3d light_dir;
vec3d local_light_dir;
light_get_global_dir(&light_dir, idx);
vm_vec_rotate(&local_light_dir, &light_dir, &Eye_matrix);
if (!stars_sun_has_glare(idx))
continue;
float dot;
if((dot=vm_vec_dot( &light_dir, &Eye_matrix.vec.fvec )) > 0.7f)
{
x = asinf(vm_vec_dot( &light_dir, &Eye_matrix.vec.rvec ))/PI*1.5f+0.5f; //cant get the coordinates right but this works for the limited glare fov
y = asinf(vm_vec_dot( &light_dir, &Eye_matrix.vec.uvec ))/PI*1.5f*gr_screen.clip_aspect+0.5f;
GL_state.Uniform.setUniform2f( "sun_pos", x, y);
GL_state.Uniform.setUniformi( "scene", 0);
GL_state.Uniform.setUniformi( "cockpit", 1);
GL_state.Uniform.setUniformf( "density", ls_density);
GL_state.Uniform.setUniformf( "falloff", ls_falloff);
GL_state.Uniform.setUniformf( "weight", ls_weight);
GL_state.Uniform.setUniformf( "intensity", Sun_spot * ls_intensity);
GL_state.Uniform.setUniformf( "cp_intensity", Sun_spot * ls_cpintensity);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Cockpit_depth_texture);
GL_state.Color(255, 255, 255, 255);
GL_state.Blend(GL_TRUE);
GL_state.SetAlphaBlendMode(ALPHA_BLEND_ADDITIVE);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Blend(GL_FALSE);
break;
}
}
}
if(zbuffer_saved)
{
zbuffer_saved = false;
gr_zbuffer_set(GR_ZBUFF_FULL);
glClear(GL_DEPTH_BUFFER_BIT);
gr_zbuffer_set(GR_ZBUFF_NONE);
vglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, Scene_depth_texture, 0);
}
// do bloom, hopefully ;)
bool bloomed = opengl_post_pass_bloom();
// do tone mapping
opengl_post_pass_tonemap();
// now write to the on-screen buffer
vglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, opengl_get_rtt_framebuffer());
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
GL_state.Color(255, 255, 255, 255);
// set and configure post shader ...
int flags = 0;
for ( int i = 0; i < (int)Post_effects.size(); i++) {
if (Post_effects[i].always_on) {
flags |= (1 << i);
}
}
int post_sdr_handle = Post_active_shader_index;
if ( post_sdr_handle < 0 ) {
// no active shader index? use the always on shader.
post_sdr_handle = gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_MAIN, flags);
}
opengl_shader_set_current(post_sdr_handle);
// basic/default uniforms
GL_state.Uniform.setUniformi( "tex", 0 );
GL_state.Uniform.setUniformi( "depth_tex", 2);
GL_state.Uniform.setUniformf( "timer", static_cast<float>(timer_get_milliseconds() % 100 + 1) );
for (size_t idx = 0; idx < Post_effects.size(); idx++) {
if ( GL_shader[post_sdr_handle].flags & (1<<idx) ) {
const char *name = Post_effects[idx].uniform_name.c_str();
float value = Post_effects[idx].intensity;
GL_state.Uniform.setUniformf( name, value);
}
}
// bloom uniforms, but only if we did the bloom
if (bloomed) {
float intensity = MIN((float)Cmdline_bloom_intensity, 200.0f) * 0.01f;
if (Neb2_render_mode != NEB2_RENDER_NONE) {
// we need less intensity for full neb missions, so cut it by 30%
intensity /= 3.0f;
}
//GL_state.Uniform.setUniformf( "bloom_intensity", intensity );
GL_state.Uniform.setUniformf( "bloom_intensity", 0.0f );
GL_state.Uniform.setUniformi( "levels" , MAX_MIP_BLUR_LEVELS );
GL_state.Uniform.setUniformi( "bloomed", 1 );
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
//GL_state.Texture.Enable(Post_bloom_texture_id[2]);
GL_state.Texture.Enable(Bloom_textures[0]);
}
else
GL_state.Uniform.setUniformf( "bloom_intensity", 0.0f );
// now render it to the screen ...
vglBindFramebufferEXT(GL_FRAMEBUFFER_EXT,0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
//GL_state.Texture.Enable(Scene_color_texture);
GL_state.Texture.Enable(Scene_ldr_texture);
GL_state.Texture.SetActiveUnit(2);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
//Shadow Map debug window
//#define SHADOW_DEBUG
#ifdef SHADOW_DEBUG
opengl_shader_set_current( &GL_post_shader[8] );
GL_state.Texture.SetActiveUnit(0);
// GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.SetTarget(GL_TEXTURE_2D_ARRAY);
// GL_state.Texture.Enable(Shadow_map_depth_texture);
extern GLuint Shadow_map_texture;
extern GLuint Post_shadow_texture_id;
GL_state.Texture.Enable(Shadow_map_texture);
vglUniform1iARB( opengl_shader_get_uniform("shadow_map"), 0);
vglUniform1iARB( opengl_shader_get_uniform("index"), 0);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, Scene_texture_u_scale, Scene_texture_u_scale);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 0.5f, 0.5f);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 1);
//opengl_draw_textured_quad(-1.0f, -0.5f, 0.5f, 0.0f, -0.5f, 0.0f, 0.75f, 0.25f);
opengl_draw_textured_quad(-1.0f, -0.5f, 0.0f, 0.0f, -0.5f, 0.0f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 2);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 3);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
opengl_shader_set_current();
#endif
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
*/
// Done!
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_effect_texture);
opengl_draw_textured_quad(0.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_normal_texture);
opengl_draw_textured_quad(-1.0f, -0.0f, 0.0f, 0.0f, 0.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_specular_texture);
opengl_draw_textured_quad(0.0f, -0.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
*/
GL_state.Texture.SetActiveUnit(2);
GL_state.Texture.Disable();
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.Disable();
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.Disable();
GL_state.Texture.SetShaderMode(GL_FALSE);
// reset state
GL_state.DepthTest(depth);
GL_state.DepthMask(depth_mask);
GL_state.Lighting(lighting);
GL_state.Blend(blend);
GL_state.CullFace(cull);
opengl_shader_set_current();
Post_in_frame = false;
}