/
render.cpp
1031 lines (844 loc) · 35.7 KB
/
render.cpp
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//
// SuperTuxKart - a fun racing game with go-kart
// Copyright (C) 2009 Joerg Henrichs
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 3
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "graphics/irr_driver.hpp"
#include "config/user_config.hpp"
#include "graphics/callbacks.hpp"
#include "graphics/camera.hpp"
#include "graphics/glow.hpp"
#include "graphics/glwrap.hpp"
#include "graphics/lens_flare.hpp"
#include "graphics/light.hpp"
#include "graphics/lod_node.hpp"
#include "graphics/material_manager.hpp"
#include "graphics/particle_kind_manager.hpp"
#include "graphics/per_camera_node.hpp"
#include "graphics/post_processing.hpp"
#include "graphics/referee.hpp"
#include "graphics/rtts.hpp"
#include "graphics/screenquad.hpp"
#include "graphics/shaders.hpp"
#include "graphics/shadow_importance.hpp"
#include "graphics/stkmeshscenenode.hpp"
#include "graphics/wind.hpp"
#include "io/file_manager.hpp"
#include "items/item.hpp"
#include "items/item_manager.hpp"
#include "modes/world.hpp"
#include "physics/physics.hpp"
#include "tracks/track.hpp"
#include "utils/constants.hpp"
#include "utils/helpers.hpp"
#include "utils/log.hpp"
#include "utils/profiler.hpp"
#include <algorithm>
void IrrDriver::renderGLSL(float dt)
{
World *world = World::getWorld(); // Never NULL.
// Overrides
video::SOverrideMaterial &overridemat = m_video_driver->getOverrideMaterial();
overridemat.EnablePasses = scene::ESNRP_SOLID | scene::ESNRP_TRANSPARENT;
overridemat.EnableFlags = 0;
if (m_wireframe)
{
overridemat.Material.Wireframe = 1;
overridemat.EnableFlags |= video::EMF_WIREFRAME;
}
if (m_mipviz)
{
overridemat.Material.MaterialType = m_shaders->getShader(ES_MIPVIZ);
overridemat.EnableFlags |= video::EMF_MATERIAL_TYPE;
overridemat.EnablePasses = scene::ESNRP_SOLID;
}
// Get a list of all glowing things. The driver's list contains the static ones,
// here we add items, as they may disappear each frame.
std::vector<GlowData> glows = m_glowing;
std::vector<GlowNode *> transparent_glow_nodes;
ItemManager * const items = ItemManager::get();
const u32 itemcount = items->getNumberOfItems();
u32 i;
// For each static node, give it a glow representation
const u32 staticglows = glows.size();
for (i = 0; i < staticglows; i++)
{
scene::ISceneNode * const node = glows[i].node;
const float radius = (node->getBoundingBox().getExtent().getLength() / 2) * 2.0f;
GlowNode * const repnode = new GlowNode(irr_driver->getSceneManager(), radius);
repnode->setPosition(node->getTransformedBoundingBox().getCenter());
transparent_glow_nodes.push_back(repnode);
}
for (i = 0; i < itemcount; i++)
{
Item * const item = items->getItem(i);
if (!item) continue;
const Item::ItemType type = item->getType();
if (type != Item::ITEM_NITRO_BIG && type != Item::ITEM_NITRO_SMALL &&
type != Item::ITEM_BONUS_BOX && type != Item::ITEM_BANANA && type != Item::ITEM_BUBBLEGUM)
continue;
LODNode * const lod = (LODNode *) item->getSceneNode();
if (!lod->isVisible()) continue;
const int level = lod->getLevel();
if (level < 0) continue;
scene::ISceneNode * const node = lod->getAllNodes()[level];
node->updateAbsolutePosition();
GlowData dat;
dat.node = node;
dat.r = 1.0f;
dat.g = 1.0f;
dat.b = 1.0f;
const video::SColorf &c = ItemManager::getGlowColor(type);
dat.r = c.getRed();
dat.g = c.getGreen();
dat.b = c.getBlue();
glows.push_back(dat);
// Push back its representation too
const float radius = (node->getBoundingBox().getExtent().getLength() / 2) * 2.0f;
GlowNode * const repnode = new GlowNode(irr_driver->getSceneManager(), radius);
repnode->setPosition(node->getTransformedBoundingBox().getCenter());
transparent_glow_nodes.push_back(repnode);
}
// Start the RTT for post-processing.
// We do this before beginScene() because we want to capture the glClear()
// because of tracks that do not have skyboxes (generally add-on tracks)
m_post_processing->begin();
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLOR), false, false);
m_video_driver->beginScene(/*backBuffer clear*/ true, /*zBuffer*/ true,
world->getClearColor());
// Clear normal and depth to zero
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_NORMAL_AND_DEPTH), true, false, video::SColor(0,0,0,0));
// Clear specular map to zero
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_SPECULARMAP), true, false, video::SColor(0,0,0,0));
irr_driver->getVideoDriver()->enableMaterial2D();
RaceGUIBase *rg = world->getRaceGUI();
if (rg) rg->update(dt);
for(unsigned int cam = 0; cam < Camera::getNumCameras(); cam++)
{
Camera * const camera = Camera::getCamera(cam);
scene::ICameraSceneNode * const camnode = camera->getCameraSceneNode();
#ifdef ENABLE_PROFILER
std::ostringstream oss;
oss << "drawAll() for kart " << cam << std::flush;
PROFILER_PUSH_CPU_MARKER(oss.str().c_str(), (cam+1)*60,
0x00, 0x00);
#endif
camera->activate();
rg->preRenderCallback(camera); // adjusts start referee
const u32 bgnodes = m_background.size();
/* if (bgnodes)
{
// If there are background nodes (3d skybox), draw them now.
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLOR), false, false);
m_renderpass = scene::ESNRP_SKY_BOX;
m_scene_manager->drawAll(m_renderpass);
const video::SOverrideMaterial prev = overridemat;
overridemat.Enabled = 1;
overridemat.EnableFlags = video::EMF_MATERIAL_TYPE;
overridemat.Material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
for (i = 0; i < bgnodes; i++)
{
m_background[i]->setPosition(camnode->getPosition() * 0.97f);
m_background[i]->updateAbsolutePosition();
m_background[i]->render();
}
overridemat = prev;
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLOR), false, true);
}*/
// Fire up the MRT
irr_driver->getVideoDriver()->setRenderTarget(irr_driver->getRTT(RTT_NORMAL_AND_DEPTH), false, false);
PROFILER_PUSH_CPU_MARKER("- Solid Pass 1", 0xFF, 0x00, 0x00);
m_renderpass = scene::ESNRP_CAMERA | scene::ESNRP_SOLID;
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
glDisable(GL_ALPHA_TEST);
glDepthMask(GL_TRUE);
glDisable(GL_BLEND);
irr_driver->setPhase(SOLID_NORMAL_AND_DEPTH_PASS);
m_scene_manager->drawAll(m_renderpass);
irr_driver->setProjMatrix(irr_driver->getVideoDriver()->getTransform(video::ETS_PROJECTION));
irr_driver->setViewMatrix(irr_driver->getVideoDriver()->getTransform(video::ETS_VIEW));
irr_driver->genProjViewMatrix();
PROFILER_POP_CPU_MARKER();
// Todo : reenable glow and shadows
//ShadowImportanceProvider * const sicb = (ShadowImportanceProvider *)
// irr_driver->getCallback(ES_SHADOW_IMPORTANCE);
//sicb->updateIPVMatrix();
// Used to cull glowing items & lights
const core::aabbox3df cambox = camnode->getViewFrustum()->getBoundingBox();
PROFILER_PUSH_CPU_MARKER("- Shadow", 0x30, 0x6F, 0x90);
// Shadows
if (!m_mipviz && !m_wireframe && UserConfigParams::m_shadows)
//&& World::getWorld()->getTrack()->hasShadows())
{
renderShadows(camnode, camera);
}
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Light", 0x00, 0xFF, 0x00);
// Lights
renderLights(cambox, camnode, overridemat, cam, dt);
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Solid Pass 2", 0x00, 0x00, 0xFF);
irr_driver->setPhase(SOLID_LIT_PASS);
glEnable(GL_DEPTH_TEST);
glDisable(GL_ALPHA_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_BLEND);
m_renderpass = scene::ESNRP_CAMERA | scene::ESNRP_SOLID;
m_scene_manager->drawAll(m_renderpass);
PROFILER_POP_CPU_MARKER();
if (World::getWorld()->getTrack()->isFogEnabled())
{
PROFILER_PUSH_CPU_MARKER("- Fog", 0xFF, 0x00, 0x00);
m_post_processing->renderFog(irr_driver->getInvProjMatrix());
PROFILER_POP_CPU_MARKER();
}
PROFILER_PUSH_CPU_MARKER("- Glow", 0xFF, 0xFF, 0x00);
// Render anything glowing.
if (!m_mipviz && !m_wireframe)
{
irr_driver->setPhase(GLOW_PASS);
renderGlow(overridemat, glows, cambox, cam);
} // end glow
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Skybox", 0xFF, 0x00, 0xFF);
renderSkybox();
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Lensflare/godray", 0x00, 0xFF, 0xFF);
// Is the lens flare enabled & visible? Check last frame's query.
const bool hasflare = World::getWorld()->getTrack()->hasLensFlare();
const bool hasgodrays = World::getWorld()->getTrack()->hasGodRays();
if (true)//hasflare || hasgodrays)
{
irr::video::COpenGLDriver* gl_driver = (irr::video::COpenGLDriver*)m_device->getVideoDriver();
GLuint res = 0;
if (m_query_issued)
gl_driver->extGlGetQueryObjectuiv(m_lensflare_query, GL_QUERY_RESULT, &res);
m_post_processing->setSunPixels(res);
// Prepare the query for the next frame.
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
gl_driver->extGlBeginQuery(GL_SAMPLES_PASSED_ARB, m_lensflare_query);
m_scene_manager->setCurrentRendertime(scene::ESNRP_SOLID);
m_scene_manager->drawAll(scene::ESNRP_CAMERA);
irr_driver->setPhase(GLOW_PASS);
m_sun_interposer->render();
gl_driver->extGlEndQuery(GL_SAMPLES_PASSED_ARB);
m_query_issued = true;
m_lensflare->setStrength(res / 4000.0f);
if (hasflare)
m_lensflare->OnRegisterSceneNode();
// Make sure the color mask is reset
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
PROFILER_POP_CPU_MARKER();
// We need to re-render camera due to the per-cam-node hack.
PROFILER_PUSH_CPU_MARKER("- Transparent Pass", 0xFF, 0x00, 0x00);
irr_driver->setPhase(TRANSPARENT_PASS);
m_renderpass = scene::ESNRP_CAMERA | scene::ESNRP_TRANSPARENT;
glEnable(GL_DEPTH_TEST);
glDisable(GL_ALPHA_TEST);
glDepthMask(GL_FALSE);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
m_scene_manager->drawAll(m_renderpass);
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Particles", 0xFF, 0xFF, 0x00);
m_renderpass = scene::ESNRP_CAMERA | scene::ESNRP_TRANSPARENT_EFFECT;
glDepthMask(GL_FALSE);
glDisable(GL_CULL_FACE);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
m_scene_manager->drawAll(m_renderpass);
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("- Displacement", 0x00, 0x00, 0xFF);
// Handle displacing nodes, if any
const u32 displacingcount = m_displacing.size();
if (displacingcount)
{
renderDisplacement(overridemat, cam);
}
PROFILER_POP_CPU_MARKER();
// Drawing for this cam done, cleanup
const u32 glowrepcount = transparent_glow_nodes.size();
for (i = 0; i < glowrepcount; i++)
{
transparent_glow_nodes[i]->remove();
transparent_glow_nodes[i]->drop();
}
PROFILER_POP_CPU_MARKER();
// Note that drawAll must be called before rendering
// the bullet debug view, since otherwise the camera
// is not set up properly. This is only used for
// the bullet debug view.
if (UserConfigParams::m_artist_debug_mode)
World::getWorld()->getPhysics()->draw();
} // for i<world->getNumKarts()
PROFILER_PUSH_CPU_MARKER("Postprocessing", 0xFF, 0xFF, 0x00);
// Render the post-processed scene
m_post_processing->render();
PROFILER_POP_CPU_MARKER();
// Set the viewport back to the full screen for race gui
m_video_driver->setViewPort(core::recti(0, 0,
UserConfigParams::m_width,
UserConfigParams::m_height));
for(unsigned int i=0; i<Camera::getNumCameras(); i++)
{
Camera *camera = Camera::getCamera(i);
char marker_name[100];
sprintf(marker_name, "renderPlayerView() for kart %d", i);
PROFILER_PUSH_CPU_MARKER(marker_name, 0x00, 0x00, (i+1)*60);
rg->renderPlayerView(camera, dt);
PROFILER_POP_CPU_MARKER();
} // for i<getNumKarts
PROFILER_PUSH_CPU_MARKER("GUIEngine", 0x75, 0x75, 0x75);
// Either render the gui, or the global elements of the race gui.
GUIEngine::render(dt);
PROFILER_POP_CPU_MARKER();
// Render the profiler
if(UserConfigParams::m_profiler_enabled)
{
PROFILER_DRAW();
}
#ifdef DEBUG
drawDebugMeshes();
#endif
PROFILER_PUSH_CPU_MARKER("EndSccene", 0x45, 0x75, 0x45);
m_video_driver->endScene();
PROFILER_POP_CPU_MARKER();
getPostProcessing()->update(dt);
}
// --------------------------------------------
void IrrDriver::renderFixed(float dt)
{
World *world = World::getWorld(); // Never NULL.
m_video_driver->beginScene(/*backBuffer clear*/ true, /*zBuffer*/ true,
world->getClearColor());
irr_driver->getVideoDriver()->enableMaterial2D();
RaceGUIBase *rg = world->getRaceGUI();
if (rg) rg->update(dt);
for(unsigned int i=0; i<Camera::getNumCameras(); i++)
{
Camera *camera = Camera::getCamera(i);
#ifdef ENABLE_PROFILER
std::ostringstream oss;
oss << "drawAll() for kart " << i << std::flush;
PROFILER_PUSH_CPU_MARKER(oss.str().c_str(), (i+1)*60,
0x00, 0x00);
#endif
camera->activate();
rg->preRenderCallback(camera); // adjusts start referee
m_renderpass = ~0;
m_scene_manager->drawAll();
PROFILER_POP_CPU_MARKER();
// Note that drawAll must be called before rendering
// the bullet debug view, since otherwise the camera
// is not set up properly. This is only used for
// the bullet debug view.
if (UserConfigParams::m_artist_debug_mode)
World::getWorld()->getPhysics()->draw();
} // for i<world->getNumKarts()
// Set the viewport back to the full screen for race gui
m_video_driver->setViewPort(core::recti(0, 0,
UserConfigParams::m_width,
UserConfigParams::m_height));
for(unsigned int i=0; i<Camera::getNumCameras(); i++)
{
Camera *camera = Camera::getCamera(i);
char marker_name[100];
sprintf(marker_name, "renderPlayerView() for kart %d", i);
PROFILER_PUSH_CPU_MARKER(marker_name, 0x00, 0x00, (i+1)*60);
rg->renderPlayerView(camera, dt);
PROFILER_POP_CPU_MARKER();
} // for i<getNumKarts
// Either render the gui, or the global elements of the race gui.
GUIEngine::render(dt);
// Render the profiler
if(UserConfigParams::m_profiler_enabled)
{
PROFILER_DRAW();
}
#ifdef DEBUG
drawDebugMeshes();
#endif
m_video_driver->endScene();
}
// ----------------------------------------------------------------------------
void IrrDriver::renderShadows(//ShadowImportanceProvider * const sicb,
scene::ICameraSceneNode * const camnode,
//video::SOverrideMaterial &overridemat,
Camera * const camera)
{
m_scene_manager->setCurrentRendertime(scene::ESNRP_SOLID);
const Vec3 *vmin, *vmax;
World::getWorld()->getTrack()->getAABB(&vmin, &vmax);
const float oldfar = camnode->getFarValue();
const float oldnear = camnode->getNearValue();
float FarValues[] =
{
20.,
50.,
100.,
oldfar,
};
float NearValues[] =
{
oldnear,
20.,
50.,
100.,
};
const core::matrix4 &SunCamViewMatrix = m_suncam->getViewMatrix();
sun_ortho_matrix.clear();
// Build the 3 ortho projection (for the 3 shadow resolution levels)
for (unsigned i = 0; i < 4; i++)
{
camnode->setFarValue(FarValues[i]);
camnode->setNearValue(NearValues[i]);
camnode->render();
const core::aabbox3df smallcambox = camnode->
getViewFrustum()->getBoundingBox();
core::aabbox3df trackbox(vmin->toIrrVector(), vmax->toIrrVector() -
core::vector3df(0, 30, 0));
// Set up a nice ortho projection that contains our camera frustum
core::aabbox3df box = smallcambox;
box = box.intersect(trackbox);
SunCamViewMatrix.transformBoxEx(trackbox);
SunCamViewMatrix.transformBoxEx(box);
core::vector3df extent = trackbox.getExtent();
const float w = fabsf(extent.X);
const float h = fabsf(extent.Y);
float z = box.MaxEdge.Z;
// Snap to texels
const float units_per_w = w / 1024;
const float units_per_h = h / 1024;
float left = box.MinEdge.X;
float right = box.MaxEdge.X;
float up = box.MaxEdge.Y;
float down = box.MinEdge.Y;
left -= fmodf(left, units_per_w);
right -= fmodf(right, units_per_w);
up -= fmodf(up, units_per_h);
down -= fmodf(down, units_per_h);
z -= fmodf(z, 0.5f);
// FIXME: quick and dirt (and wrong) workaround to avoid division by zero
if (left == right) right += 0.1f;
if (up == down) down += 0.1f;
if (z == 30) z += 0.1f;
core::matrix4 tmp_matrix;
tmp_matrix.buildProjectionMatrixOrthoLH(left, right,
up, down,
30, z);
m_suncam->setProjectionMatrix(tmp_matrix, true);
m_scene_manager->setActiveCamera(m_suncam);
m_suncam->render();
sun_ortho_matrix.push_back(getVideoDriver()->getTransform(video::ETS_PROJECTION) * getVideoDriver()->getTransform(video::ETS_VIEW));
}
assert(sun_ortho_matrix.size() == 4);
irr_driver->setPhase(SHADOW_PASS);
glDisable(GL_BLEND);
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
glBindFramebuffer(GL_FRAMEBUFFER, m_rtts->getShadowFBO());
glViewport(0, 0, 1024, 1024);
glClear(GL_DEPTH_BUFFER_BIT);
glDrawBuffer(GL_NONE);
m_scene_manager->drawAll(scene::ESNRP_SOLID);
glCullFace(GL_BACK);
camnode->setNearValue(oldnear);
camnode->setFarValue(oldfar);
camnode->render();
camera->activate();
m_scene_manager->drawAll(scene::ESNRP_CAMERA);
//sun_ortho_matrix *= m_suncam->getViewMatrix();
/* ((SunLightProvider *) m_shaders->m_callbacks[ES_SUNLIGHT])->setShadowMatrix(ortho);
sicb->setShadowMatrix(ortho);
overridemat.Enabled = 0;
// Render the importance map
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLLAPSE), true, true);
m_shadow_importance->render();
CollapseProvider * const colcb = (CollapseProvider *)
m_shaders->
m_callbacks[ES_COLLAPSE];
ScreenQuad sq(m_video_driver);
sq.setMaterialType(m_shaders->getShader(ES_COLLAPSE));
sq.setTexture(m_rtts->getRTT(RTT_COLLAPSE));
sq.getMaterial().setFlag(EMF_BILINEAR_FILTER, false);
const TypeRTT oldh = tick ? RTT_COLLAPSEH : RTT_COLLAPSEH2;
const TypeRTT oldv = tick ? RTT_COLLAPSEV : RTT_COLLAPSEV2;
const TypeRTT curh = tick ? RTT_COLLAPSEH2 : RTT_COLLAPSEH;
const TypeRTT curv = tick ? RTT_COLLAPSEV2 : RTT_COLLAPSEV;
colcb->setResolution(1, m_rtts->getRTT(RTT_WARPV)->getSize().Height);
sq.setTexture(m_rtts->getRTT(oldh), 1);
sq.render(m_rtts->getRTT(RTT_WARPH));
colcb->setResolution(m_rtts->getRTT(RTT_WARPV)->getSize().Height, 1);
sq.setTexture(m_rtts->getRTT(oldv), 1);
sq.render(m_rtts->getRTT(RTT_WARPV));
sq.setTexture(0, 1);
((GaussianBlurProvider *) m_shaders->m_callbacks[ES_GAUSSIAN3H])->setResolution(
m_rtts->getRTT(RTT_WARPV)->getSize().Height,
m_rtts->getRTT(RTT_WARPV)->getSize().Height);
sq.setMaterialType(m_shaders->getShader(ES_GAUSSIAN6H));
sq.setTexture(m_rtts->getRTT(RTT_WARPH));
sq.render(m_rtts->getRTT(curh));
sq.setMaterialType(m_shaders->getShader(ES_GAUSSIAN6V));
sq.setTexture(m_rtts->getRTT(RTT_WARPV));
sq.render(m_rtts->getRTT(curv));*/
// Convert importance maps to warp maps
//
// It should be noted that while they do repeated work
// calculating the min, max, and total, it's several hundred us
// faster to do that than to do it once in a separate shader
// (shader switch overhead, measured).
/*colcb->setResolution(m_rtts->getRTT(RTT_WARPV)->getSize().Height,
m_rtts->getRTT(RTT_WARPV)->getSize().Height);
sq.setMaterialType(m_shaders->getShader(ES_SHADOW_WARPH));
sq.setTexture(m_rtts->getRTT(curh));
sq.render(m_rtts->getRTT(RTT_WARPH));
sq.setMaterialType(m_shaders->getShader(ES_SHADOW_WARPV));
sq.setTexture(m_rtts->getRTT(curv));
sq.render(m_rtts->getRTT(RTT_WARPV));*/
// Actual shadow map
/* overridemat.Material.MaterialType = m_shaders->getShader(ES_SHADOWPASS);
overridemat.EnableFlags = video::EMF_MATERIAL_TYPE | video::EMF_TEXTURE1 |
video::EMF_TEXTURE2;
overridemat.EnablePasses = scene::ESNRP_SOLID;
overridemat.Material.setTexture(1, m_rtts->getRTT(RTT_WARPH));
overridemat.Material.setTexture(2, m_rtts->getRTT(RTT_WARPV));
overridemat.Material.TextureLayer[1].TextureWrapU =
overridemat.Material.TextureLayer[1].TextureWrapV =
overridemat.Material.TextureLayer[2].TextureWrapU =
overridemat.Material.TextureLayer[2].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
overridemat.Material.TextureLayer[1].BilinearFilter =
overridemat.Material.TextureLayer[2].BilinearFilter = true;
overridemat.Material.TextureLayer[1].TrilinearFilter =
overridemat.Material.TextureLayer[2].TrilinearFilter = false;
overridemat.Material.TextureLayer[1].AnisotropicFilter =
overridemat.Material.TextureLayer[2].AnisotropicFilter = 0;
overridemat.Material.Wireframe = 1;
overridemat.Enabled = true;*/
// overridemat.EnablePasses = 0;
// overridemat.Enabled = false;
}
// ----------------------------------------------------------------------------
void IrrDriver::renderGlow(video::SOverrideMaterial &overridemat,
std::vector<GlowData>& glows,
const core::aabbox3df& cambox,
int cam)
{
m_scene_manager->setCurrentRendertime(scene::ESNRP_SOLID);
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_TMP1), false, false);
glClearColor(0, 0, 0, 0);
glClear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
const u32 glowcount = glows.size();
ColorizeProvider * const cb = (ColorizeProvider *) m_shaders->m_callbacks[ES_COLORIZE];
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
glStencilFunc(GL_ALWAYS, 1, ~0);
glEnable(GL_STENCIL_TEST);
glEnable(GL_DEPTH_TEST);
glDisable(GL_ALPHA_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_BLEND);
for (u32 i = 0; i < glowcount; i++)
{
const GlowData &dat = glows[i];
scene::ISceneNode * const cur = dat.node;
// Quick box-based culling
const core::aabbox3df nodebox = cur->getTransformedBoundingBox();
if (!nodebox.intersectsWithBox(cambox))
continue;
cb->setColor(dat.r, dat.g, dat.b);
cur->render();
}
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
glDisable(GL_STENCIL_TEST);
// Cool, now we have the colors set up. Progressively minify.
video::SMaterial minimat;
minimat.Lighting = false;
minimat.ZWriteEnable = false;
minimat.ZBuffer = video::ECFN_ALWAYS;
minimat.setFlag(video::EMF_TRILINEAR_FILTER, true);
minimat.TextureLayer[0].TextureWrapU =
minimat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
// To half
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_HALF1), false, false);
m_post_processing->renderPassThrough(m_rtts->getRTT(RTT_TMP1));
// To quarter
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_QUARTER1), false, false);
m_post_processing->renderPassThrough(m_rtts->getRTT(RTT_HALF1));
// Blur it
m_post_processing->renderGaussian6Blur(m_rtts->getRTT(RTT_QUARTER1), m_rtts->getRTT(RTT_QUARTER2), 4.f / UserConfigParams::m_width, 4.f / UserConfigParams::m_height);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glStencilFunc(GL_EQUAL, 0, ~0);
glEnable(GL_STENCIL_TEST);
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLOR), false, false);
m_post_processing->renderGlow(m_rtts->getRTT(RTT_QUARTER1));
glDisable(GL_STENCIL_TEST);
}
// ----------------------------------------------------------------------------
#define MAXLIGHT 16 // to be adjusted in pointlight.frag too
void IrrDriver::renderLights(const core::aabbox3df& cambox,
scene::ICameraSceneNode * const camnode,
video::SOverrideMaterial &overridemat,
int cam, float dt)
{
for (unsigned i = 0; i < sun_ortho_matrix.size(); i++)
sun_ortho_matrix[i] *= getInvViewMatrix();
core::array<video::IRenderTarget> rtts;
// Diffuse
rtts.push_back(m_rtts->getRTT(RTT_TMP1));
// Specular
rtts.push_back(m_rtts->getRTT(RTT_TMP2));
m_video_driver->setRenderTarget(rtts, true, false,
video::SColor(0, 0, 0, 0));
const u32 lightcount = m_lights.size();
const core::vector3df &campos =
irr_driver->getSceneManager()->getActiveCamera()->getAbsolutePosition();
std::vector<float> accumulatedLightPos;
std::vector<float> accumulatedLightColor;
std::vector<float> accumulatedLightEnergy;
std::vector<LightNode *> BucketedLN[15];
for (unsigned int i = 0; i < lightcount; i++)
{
if (!m_lights[i]->isPointLight())
{
m_lights[i]->render();
if (UserConfigParams::m_shadows)
m_post_processing->renderShadowedSunlight(sun_ortho_matrix, m_rtts->getShadowDepthTex());
else
m_post_processing->renderSunlight();
continue;
}
const core::vector3df &lightpos = (m_lights[i]->getAbsolutePosition() - campos);
unsigned idx = (unsigned)(lightpos.getLength() / 10);
if (idx > 14)
continue;
BucketedLN[idx].push_back(m_lights[i]);
}
unsigned lightnum = 0;
for (unsigned i = 0; i < 15; i++)
{
for (unsigned j = 0; j < BucketedLN[i].size(); j++)
{
if (++lightnum > MAXLIGHT)
{
LightNode* light_node = BucketedLN[i].at(j);
light_node->setEnergyMultiplier(0.0f);
}
else
{
LightNode* light_node = BucketedLN[i].at(j);
float em = light_node->getEnergyMultiplier();
if (em < 1.0f)
{
light_node->setEnergyMultiplier(std::min(1.0f, em + dt));
}
const core::vector3df &pos = light_node->getAbsolutePosition();
accumulatedLightPos.push_back(pos.X);
accumulatedLightPos.push_back(pos.Y);
accumulatedLightPos.push_back(pos.Z);
accumulatedLightPos.push_back(0.);
const core::vector3df &col = light_node->getColor();
accumulatedLightColor.push_back(col.X);
accumulatedLightColor.push_back(col.Y);
accumulatedLightColor.push_back(col.Z);
accumulatedLightColor.push_back(0.);
accumulatedLightEnergy.push_back(light_node->getEffectiveEnergy());
}
}
if (lightnum > MAXLIGHT)
{
irr_driver->setLastLightBucketDistance(i * 10);
break;
}
}
// Fill lights
for (; lightnum < MAXLIGHT; lightnum++) {
accumulatedLightPos.push_back(0.);
accumulatedLightPos.push_back(0.);
accumulatedLightPos.push_back(0.);
accumulatedLightPos.push_back(0.);
accumulatedLightColor.push_back(0.);
accumulatedLightColor.push_back(0.);
accumulatedLightColor.push_back(0.);
accumulatedLightColor.push_back(0.);
accumulatedLightEnergy.push_back(0.);
}
m_post_processing->renderPointlight(accumulatedLightPos, accumulatedLightColor, accumulatedLightEnergy);
// Handle SSAO
m_video_driver->setRenderTarget(irr_driver->getRTT(RTT_SSAO), true, false,
SColor(255, 255, 255, 255));
if(UserConfigParams::m_ssao)
m_post_processing->renderSSAO(irr_driver->getInvProjMatrix(), irr_driver->getProjMatrix());
// Blur it to reduce noise.
if(UserConfigParams::m_ssao == 1)
m_post_processing->renderGaussian3Blur(irr_driver->getRTT(RTT_SSAO), irr_driver->getRTT(RTT_QUARTER4), 4.f / UserConfigParams::m_width, 4.f / UserConfigParams::m_height);
else if (UserConfigParams::m_ssao == 2)
m_post_processing->renderGaussian6Blur(irr_driver->getRTT(RTT_SSAO), irr_driver->getRTT(RTT_TMP4), 1.f / UserConfigParams::m_width, 1.f / UserConfigParams::m_height);
m_video_driver->setRenderTarget(m_rtts->getRTT(RTT_COLOR), false, false);
}
static GLuint cubevao = 0;
static GLuint cubevbo;
static GLuint cubeidx;
static void createcubevao()
{
// From CSkyBoxSceneNode. Not optimal at all
float corners[] =
{
// top side
1., 1., -1., 1., 1.,
1., 1., 1., 0., 1.,
-1., 1., 1., 0., 0.,
-1., 1., -1., 1., 0.,
// Bottom side
1., -1., 1., 0., 0.,
1., -1., -1., 1., 0.,
-1., -1., -1., 1., 1.,
-1., -1., 1., 0., 1.,
// right side
1., -1, -1, 1., 1.,
1., -1, 1, 0., 1.,
1., 1., 1., 0., 0.,
1., 1., -1., 1., 0.,
// left side
-1., -1., 1., 1., 1.,
-1., -1., -1., 0., 1.,
-1., 1., -1., 0., 0.,
-1., 1., 1., 1., 0.,
// back side
-1., -1., -1., 1., 1.,
1., -1, -1., 0., 1.,
1, 1, -1., 0., 0.,
-1, 1, -1., 1., 0.,
// front side
1., -1., 1., 1., 1.,
-1., -1., 1., 0., 1.,
-1, 1., 1., 0., 0.,
1., 1., 1., 1., 0.,
};
int indices[] = {
0, 1, 2, 2, 3, 0,
4, 5, 6, 6, 7, 4,
8, 9, 10, 10, 11, 8,
12, 13, 14, 14, 15, 12,
16, 17, 18, 18, 19, 16,
20, 21, 22, 22, 23, 20
};
glGenBuffers(1, &cubevbo);
glGenBuffers(1, &cubeidx);
glGenVertexArrays(1, &cubevao);
glBindVertexArray(cubevao);
glBindBuffer(GL_ARRAY_BUFFER, cubevbo);
glBufferData(GL_ARRAY_BUFFER, 6 * 5 * 4 * sizeof(float), corners, GL_STATIC_DRAW);
glEnableVertexAttribArray(MeshShader::ObjectUnlitShader::attrib_position);
glEnableVertexAttribArray(MeshShader::ObjectUnlitShader::attrib_texcoord);
glVertexAttribPointer(MeshShader::ObjectUnlitShader::attrib_position, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), 0);
glVertexAttribPointer(MeshShader::ObjectUnlitShader::attrib_texcoord, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (GLvoid *)(3 * sizeof(float)));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cubeidx);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 6 * 6 * sizeof(int), indices, GL_STATIC_DRAW);
}
#define MAX2(a, b) ((a) > (b) ? (a) : (b))
void IrrDriver::generateSkyboxCubemap()
{
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
glGenTextures(1, &SkyboxCubeMap);
GLint w = 0, h = 0;
for (unsigned i = 0; i < 6; i++)
{
w = MAX2(w, SkyboxTextures[i]->getOriginalSize().Width);
h = MAX2(h, SkyboxTextures[i]->getOriginalSize().Height);
}
const unsigned texture_permutation[] = { 2, 3, 0, 1, 5, 4 };
char *rgba = new char[w * h * 4];
for (unsigned i = 0; i < 6; i++)
{
unsigned idx = texture_permutation[i];
video::IImage* image = getVideoDriver()->createImageFromData(
SkyboxTextures[idx]->getColorFormat(),
SkyboxTextures[idx]->getSize(),
SkyboxTextures[idx]->lock(),
false
);
SkyboxTextures[idx]->unlock();
image->copyToScaling(rgba, w, h);
glBindTexture(GL_TEXTURE_CUBE_MAP, SkyboxCubeMap);
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, (GLvoid*)rgba);
image->drop();
}
delete[] rgba;
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
}
void IrrDriver::renderSkybox()
{
if (SkyboxTextures.empty()) return;
scene::ICameraSceneNode *camera = m_scene_manager->getActiveCamera();
if (!cubevao)
createcubevao();
if (!SkyboxCubeMap)
generateSkyboxCubemap();
glBindVertexArray(cubevao);
glDisable(GL_CULL_FACE);
assert(SkyboxTextures.size() == 6);
core::matrix4 transform = irr_driver->getProjViewMatrix();
core::matrix4 translate;
translate.setTranslation(camera->getAbsolutePosition());
// Draw the sky box between the near and far clip plane
const f32 viewDistance = (camera->getNearValue() + camera->getFarValue()) * 0.5f;
core::matrix4 scale;
scale.setScale(core::vector3df(viewDistance, viewDistance, viewDistance));
transform *= translate * scale;
core::matrix4 invtransform;
transform.getInverse(invtransform);
for (unsigned i = 0; i < 6; i++)
{
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP, SkyboxCubeMap);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glUseProgram(MeshShader::SkyboxShader::Program);
MeshShader::SkyboxShader::setUniforms(transform, invtransform, core::vector2df(UserConfigParams::m_width, UserConfigParams::m_height), 0);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, (GLvoid*) (6 * i * sizeof(int)));
}
glBindVertexArray(0);
}
// ----------------------------------------------------------------------------