/
rend_main.cpp
6260 lines (5354 loc) · 205 KB
/
rend_main.cpp
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/** @file rend_main.cpp World Map Renderer.
*
* @authors Copyright © 2003-2013 Jaakko Keränen <jaakko.keranen@iki.fi>
* @authors Copyright © 2006-2015 Daniel Swanson <danij@dengine.net>
* @authors Copyright © 2006 Jamie Jones <jamie_jones_au@yahoo.com.au>
*
* @par License
* GPL: http://www.gnu.org/licenses/gpl.html
*
* <small>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 2 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA</small>
*/
#include "de_base.h"
#include "render/rend_main.h"
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <QtAlgorithms>
#include <QBitArray>
#include <de/concurrency.h>
#include <de/timer.h>
#include <de/vector1.h>
#include <de/GLState>
#include <doomsday/console/cmd.h>
#include <doomsday/console/var.h>
#include "clientapp.h"
#include "sys_system.h"
#include "api_fontrender.h"
#include "edit_bias.h" /// @todo remove me
#include "r_util.h"
#include "MaterialVariantSpec"
#include "Texture"
#include "Face"
#include "world/map.h"
#include "world/blockmap.h"
#include "world/lineowner.h"
#include "world/p_object.h"
#include "world/p_players.h"
#include "world/sky.h"
#include "world/thinkers.h"
#include "BspLeaf"
#include "BspNode"
#include "Contact"
#include "ConvexSubspace"
#include "Hand"
#include "SectorCluster"
#include "Surface"
#include "BiasIllum"
#include "HueCircleVisual"
#include "LightDecoration"
#include "Lumobj"
#include "Shard"
#include "SkyFixEdge"
#include "SurfaceDecorator"
#include "TriangleStripBuilder"
#include "WallEdge"
#include "gl/gl_main.h"
#include "gl/gl_texmanager.h"
#include "gl/sys_opengl.h"
#include "render/fx/bloom.h"
#include "render/fx/vignette.h"
#include "render/fx/lensflares.h"
#include "render/angleclipper.h"
#include "render/blockmapvisual.h"
#include "render/billboard.h"
#include "render/cameralensfx.h"
#include "render/r_main.h"
#include "render/r_things.h"
#include "render/rend_fakeradio.h"
#include "render/rend_halo.h"
#include "render/rend_particle.h"
#include "render/rendpoly.h"
#include "render/skydrawable.h"
#include "render/viewports.h"
#include "render/vissprite.h"
#include "render/vr.h"
#include "ui/editors/rendererappearanceeditor.h"
#include "ui/ui_main.h"
using namespace de;
/**
* POD structure used to transport vertex data refs as a logical unit.
* @note The geometric data itself is not owned!
*/
struct Geometry
{
Vector3f *pos;
Vector4f *color;
Vector2f *tex;
Vector2f *tex2;
};
/**
* POD structure used to describe texture modulation data.
*/
struct TexModulationData
{
DGLuint texture = 0;
Vector3f color;
Vector2f topLeft;
Vector2f bottomRight;
};
// Surface (tangent-space) Vector Flags.
#define SVF_TANGENT 0x01
#define SVF_BITANGENT 0x02
#define SVF_NORMAL 0x04
/**
* @defgroup soundOriginFlags Sound Origin Flags
* Flags for use with the sound origin debug display.
* @ingroup flags
*/
///@{
#define SOF_SECTOR 0x01
#define SOF_PLANE 0x02
#define SOF_SIDE 0x04
///@}
void Rend_DrawBBox(Vector3d const &pos, coord_t w, coord_t l, coord_t h, dfloat a,
dfloat const color[3], dfloat alpha, dfloat br, bool alignToBase = true);
void Rend_DrawArrow(Vector3d const &pos, dfloat a, dfloat s, dfloat const color3f[3], dfloat alpha);
D_CMD(OpenRendererAppearanceEditor);
D_CMD(LowRes);
D_CMD(MipMap);
D_CMD(TexReset);
dint useBias; ///< Shadow Bias enabled? cvar
dd_bool usingFog; ///< Is the fog in use?
dfloat fogColor[4];
dfloat fieldOfView = 95.0f;
dbyte smoothTexAnim = true;
dint renderTextures = true;
dint renderWireframe;
dint useMultiTexLights = true;
dint useMultiTexDetails = true;
dint dynlightBlend;
Vector3f torchColor(1, 1, 1);
dint torchAdditive = true;
dint useShinySurfaces = true;
dint useDynLights = true;
dfloat dynlightFactor = .7f;
dfloat dynlightFogBright = .15f;
dint useGlowOnWalls = true;
dfloat glowFactor = .8f;
dfloat glowHeightFactor = 3; ///< Glow height as a multiplier.
dint glowHeightMax = 100; ///< 100 is the default (0-1024).
dint useShadows = true;
dfloat shadowFactor = 1.2f;
dint shadowMaxRadius = 80;
dint shadowMaxDistance = 1000;
dbyte useLightDecorations = true; ///< cvar
dfloat detailFactor = .5f;
dfloat detailScale = 4;
dint mipmapping = 5;
dint filterUI = 1;
dint texQuality = TEXQ_BEST;
dint ratioLimit; ///< Zero if none.
dd_bool fillOutlines = true;
dint useSmartFilter; ///< Smart filter mode (cvar: 1=hq2x)
dint filterSprites = true;
dint texMagMode = 1; ///< Linear.
dint texAniso = -1; ///< Use best.
dd_bool noHighResTex;
dd_bool noHighResPatches;
dd_bool highResWithPWAD;
dbyte loadExtAlways; ///< Always check for extres (cvar)
dfloat texGamma;
dint glmode[6] = // Indexed by 'mipmapping'.
{
GL_NEAREST,
GL_LINEAR,
GL_NEAREST_MIPMAP_NEAREST,
GL_LINEAR_MIPMAP_NEAREST,
GL_NEAREST_MIPMAP_LINEAR,
GL_LINEAR_MIPMAP_LINEAR
};
Vector3d vOrigin;
dfloat vang, vpitch;
dfloat viewsidex, viewsidey;
dbyte freezeRLs;
dint devNoCulling; ///< @c 1= disabled (cvar).
dint devRendSkyMode;
dbyte devRendSkyAlways;
// Ambient lighting, rAmbient is used within the renderer, ambientLight is
// used to store the value of the ambient light cvar.
// The value chosen for rAmbient occurs in Rend_UpdateLightModMatrix
// for convenience (since we would have to recalculate the matrix anyway).
dint rAmbient, ambientLight;
dint viewpw, viewph; ///< Viewport size, in pixels.
dint viewpx, viewpy; ///< Viewpoint top left corner, in pixels.
dfloat yfov;
dint gameDrawHUD = 1; ///< Set to zero when we advise that the HUD should not be drawn
/**
* Implements a pre-calculated LUT for light level limiting and range
* compression offsets, arranged such that it may be indexed with a
* light level value. Return value is an appropriate delta (considering
* all applicable renderer properties) which has been pre-clamped such
* that when summed with the original light value the result remains in
* the normalized range [0..1].
*/
dfloat lightRangeCompression;
dfloat lightModRange[255];
byte devLightModRange;
dfloat rendLightDistanceAttenuation = 924;
dint rendLightAttenuateFixedColormap = 1;
dfloat rendLightWallAngle = 1.2f; ///< Intensity of angle-based wall lighting.
dbyte rendLightWallAngleSmooth = true;
dfloat rendSkyLight = .273f; ///< Intensity factor.
dbyte rendSkyLightAuto = true;
dint rendMaxLumobjs; ///< Max lumobjs per viewer, per frame. @c 0= no maximum.
dint extraLight; ///< Bumped light from gun blasts.
dfloat extraLightDelta;
DGLuint dlBBox; ///< Display list id for the active-textured bbox model.
/*
* Debug/Development cvars:
*/
dbyte devMobjVLights; ///< @c 1= Draw mobj vertex lighting vector.
dint devMobjBBox; ///< @c 1= Draw mobj bounding boxes.
dint devPolyobjBBox; ///< @c 1= Draw polyobj bounding boxes.
dbyte devVertexIndices; ///< @c 1= Draw vertex indices.
dbyte devVertexBars; ///< @c 1= Draw vertex position bars.
dbyte devDrawGenerators; ///< @c 1= Draw active generators.
dbyte devSoundEmitters; ///< @c 1= Draw sound emitters.
dbyte devSurfaceVectors; ///< @c 1= Draw tangent space vectors for surfaces.
dbyte devNoTexFix; ///< @c 1= Draw "missing" rather than fix materials.
dbyte devSectorIndices; ///< @c 1= Draw sector indicies.
dbyte devThinkerIds; ///< @c 1= Draw (mobj) thinker indicies.
dbyte rendInfoLums; ///< @c 1= Print lumobj debug info to the console.
dbyte devDrawLums; ///< @c 1= Draw lumobjs origins.
dbyte devLightGrid; ///< @c 1= Draw lightgrid debug visual.
dfloat devLightGridSize = 1.5f; ///< Lightgrid debug visual size factor.
static void drawBiasEditingVisuals(Map &map);
//static void drawFakeRadioShadowPoints(Map &map);
static void drawGenerators(Map &map);
static void drawLumobjs(Map &map);
static void drawMobjBoundingBoxes(Map &map);
static void drawSectors(Map &map);
static void drawSoundEmitters(Map &map);
static void drawSurfaceTangentVectors(Map &map);
static void drawThinkers(Map &map);
static void drawVertexes(Map &map);
// Draw state:
static Vector3d eyeOrigin; ///< Viewer origin.
static ConvexSubspace *curSubspace; ///< Subspace currently being drawn.
static Vector3f curSectorLightColor;
static dfloat curSectorLightLevel;
static bool firstSubspace; ///< No range checking for the first one.
static inline RenderSystem &rendSys()
{
return ClientApp::renderSystem();
}
static inline ResourceSystem &resSys()
{
return ClientApp::resourceSystem();
}
static inline WorldSystem &worldSys()
{
return ClientApp::worldSystem();
}
static void reportWallSectionDrawn(Line &line)
{
// Already been here?
dint playerNum = viewPlayer - ddPlayers;
if(line.isMappedByPlayer(playerNum)) return;
// Mark as drawn.
line.markMappedByPlayer(playerNum);
// Send a status report.
if(gx.HandleMapObjectStatusReport)
{
gx.HandleMapObjectStatusReport(DMUSC_LINE_FIRSTRENDERED, line.indexInMap(),
DMU_LINE, &playerNum);
}
}
static void scheduleFullLightGridUpdate()
{
if(!worldSys().hasMap()) return;
// Schedule a LightGrid update.
if(worldSys().map().hasLightGrid())
{
worldSys().map().lightGrid().scheduleFullUpdate();
}
}
/// World/map renderer reset.
void Rend_Reset()
{
R_ClearViewData();
if(App_WorldSystem().hasMap())
{
App_WorldSystem().map().removeAllLumobjs();
}
if(dlBBox)
{
GL_DeleteLists(dlBBox, 1);
dlBBox = 0;
}
}
bool Rend_IsMTexLights()
{
return IS_MTEX_LIGHTS;
}
bool Rend_IsMTexDetails()
{
return IS_MTEX_DETAILS;
}
dfloat Rend_FieldOfView()
{
if(vrCfg().mode() == VRConfig::OculusRift)
{
// OVR tells us which FOV to use.
return vrCfg().oculusRift().fovX();
}
else
{
// Correction is applied for wide screens so that when the FOV is kept
// at a certain value (e.g., the default FOV), a 16:9 view has a wider angle
// than a 4:3, but not just scaled linearly since that would go too far
// into the fish eye territory.
dfloat widescreenCorrection = dfloat(viewpw) / dfloat(viewph) / (4.f / 3.f);
if(widescreenCorrection < 1.5) // up to ~16:9
{
widescreenCorrection = (1 + 2 * widescreenCorrection) / 3;
return de::clamp(1.f, widescreenCorrection * fieldOfView, 179.f);
}
// This is an unusually wide (perhaps multimonitor) setup, so just use the
// configured FOV as is.
return de::clamp(1.f, fieldOfView, 179.f);
}
}
static Vector3d vEyeOrigin;
Vector3d Rend_EyeOrigin()
{
return vEyeOrigin;
}
Matrix4f Rend_GetModelViewMatrix(dint consoleNum, bool inWorldSpace)
{
viewdata_t const *viewData = R_ViewData(consoleNum);
dfloat bodyAngle = viewData->current.angleWithoutHeadTracking() / (dfloat) ANGLE_MAX * 360 - 90;
/// @todo vOrigin et al. shouldn't be changed in a getter function. -jk
vOrigin = viewData->current.origin.xzy();
vang = viewData->current.angle() / (dfloat) ANGLE_MAX * 360 - 90; // head tracking included
vpitch = viewData->current.pitch * 85.0 / 110.0;
vEyeOrigin = vOrigin;
OculusRift &ovr = vrCfg().oculusRift();
bool const applyHead = (vrCfg().mode() == VRConfig::OculusRift && ovr.isReady());
Matrix4f modelView;
Matrix4f headOrientation;
Matrix4f headOffset;
if(applyHead)
{
Vector3f headPos = swizzle(Matrix4f::rotate(bodyAngle, Vector3f(0, 1, 0)) *
ovr.headPosition() * vrCfg().mapUnitsPerMeter(),
AxisNegX, AxisNegY, AxisZ);
headOffset = Matrix4f::translate(headPos);
vEyeOrigin -= headPos;
}
if(inWorldSpace)
{
dfloat yaw = vang;
dfloat pitch = vpitch;
dfloat roll = 0;
/// @todo Elevate roll angle use into viewer_t, and maybe all the way up into player
/// model.
// Pitch and yaw can be taken directly from the head tracker, as the game is aware of
// these values and is syncing with them independently (however, game has more
// latency).
if(applyHead)
{
// Use angles directly from the Rift for best response.
Vector3f const pry = ovr.headOrientation();
roll = -radianToDegree(pry[1]);
pitch = radianToDegree(pry[0]);
}
headOrientation = Matrix4f::rotate(roll, Vector3f(0, 0, 1)) *
Matrix4f::rotate(pitch, Vector3f(1, 0, 0)) *
Matrix4f::rotate(yaw, Vector3f(0, 1, 0));
modelView = headOrientation * headOffset;
}
if(applyHead)
{
// Apply the current eye offset to the eye origin.
vEyeOrigin -= headOrientation.inverse() * (ovr.eyeOffset() * vrCfg().mapUnitsPerMeter());
}
return (modelView *
Matrix4f::scale(Vector3f(1.0f, 1.2f, 1.0f)) * // This is the aspect correction.
Matrix4f::translate(-vOrigin));
}
void Rend_ModelViewMatrix(bool inWorldSpace)
{
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(Rend_GetModelViewMatrix(viewPlayer - ddPlayers, inWorldSpace).values());
}
static inline ddouble viewFacingDot(Vector2d const &v1, Vector2d const &v2)
{
// The dot product.
return (v1.y - v2.y) * (v1.x - Rend_EyeOrigin().x) + (v2.x - v1.x) * (v1.y - Rend_EyeOrigin().z);
}
dfloat Rend_ExtraLightDelta()
{
return extraLightDelta;
}
void Rend_ApplyTorchLight(Vector4f &color, dfloat distance)
{
ddplayer_t *ddpl = &viewPlayer->shared;
// Disabled?
if(!ddpl->fixedColorMap) return;
// Check for torch.
if(!rendLightAttenuateFixedColormap || distance < 1024)
{
// Colormap 1 is the brightest. I'm guessing 16 would be
// the darkest.
dfloat d = (16 - ddpl->fixedColorMap) / 15.0f;
if(rendLightAttenuateFixedColormap)
{
d *= (1024 - distance) / 1024.0f;
}
if(torchAdditive)
{
color += torchColor * d;
}
else
{
color += ((color * torchColor) - color) * d;
}
}
}
void Rend_ApplyTorchLight(dfloat *color3, dfloat distance)
{
Vector4f tmp(color3, 0);
Rend_ApplyTorchLight(tmp, distance);
for(dint i = 0; i < 3; ++i)
{
color3[i] = tmp[i];
}
}
dfloat Rend_AttenuateLightLevel(dfloat distToViewer, dfloat lightLevel)
{
if(distToViewer > 0 && rendLightDistanceAttenuation > 0)
{
dfloat real = lightLevel -
(distToViewer - 32) / rendLightDistanceAttenuation *
(1 - lightLevel);
dfloat minimum = de::max(0.f, de::squared(lightLevel) + (lightLevel - .63f) * .5f);
if(real < minimum)
real = minimum; // Clamp it.
return de::min(real, 1.f);
}
return lightLevel;
}
dfloat Rend_ShadowAttenuationFactor(coord_t distance)
{
if(shadowMaxDistance > 0 && distance > 3 * shadowMaxDistance / 4)
{
return (shadowMaxDistance - distance) / (shadowMaxDistance / 4);
}
return 1;
}
static Vector3f skyLightColor;
static Vector3f oldSkyAmbientColor(-1.f, -1.f, -1.f);
static dfloat oldRendSkyLight = -1;
bool Rend_SkyLightIsEnabled()
{
return rendSkyLight > .001f;
}
Vector3f Rend_SkyLightColor()
{
if(Rend_SkyLightIsEnabled() && ClientApp::worldSystem().hasMap())
{
Sky &sky = ClientApp::worldSystem().map().sky();
Vector3f const &ambientColor = sky.ambientColor();
if(rendSkyLight != oldRendSkyLight ||
!INRANGE_OF(ambientColor.x, oldSkyAmbientColor.x, .001f) ||
!INRANGE_OF(ambientColor.y, oldSkyAmbientColor.y, .001f) ||
!INRANGE_OF(ambientColor.z, oldSkyAmbientColor.z, .001f))
{
skyLightColor = ambientColor;
R_AmplifyColor(skyLightColor);
// Apply the intensity factor cvar.
for(dint i = 0; i < 3; ++i)
{
skyLightColor[i] = skyLightColor[i] + (1 - rendSkyLight) * (1.f - skyLightColor[i]);
}
// When the sky light color changes we must update the light grid.
scheduleFullLightGridUpdate();
oldSkyAmbientColor = ambientColor;
}
oldRendSkyLight = rendSkyLight;
return skyLightColor;
}
return Vector3f(1, 1, 1);
}
/**
* Determine the effective ambient light color for the given @a sector. Usually
* one would obtain this info from SectorCluster, however in some situations the
* correct light color is *not* that of the cluster (e.g., where map hacks use
* mapped planes to reference another sector).
*/
static Vector3f Rend_AmbientLightColor(Sector const §or)
{
if(Rend_SkyLightIsEnabled() && sector.hasSkyMaskedPlane())
{
return Rend_SkyLightColor();
}
// A non-skylight sector (i.e., everything else!)
// Return the sector's ambient light color.
return sector.lightColor();
}
Vector3f Rend_LuminousColor(Vector3f const &color, dfloat light)
{
light = de::clamp(0.f, light, 1.f) * dynlightFactor;
// In fog additive blending is used; the normal fog color is way too bright.
if(usingFog) light *= dynlightFogBright;
// Multiply light with (ambient) color.
return color * light;
}
coord_t Rend_PlaneGlowHeight(dfloat intensity)
{
return de::clamp<ddouble>(0, GLOW_HEIGHT_MAX * intensity * glowHeightFactor, glowHeightMax);
}
Material *Rend_ChooseMapSurfaceMaterial(Surface const &surface)
{
switch(renderTextures)
{
case 0: // No texture mode.
case 1: // Normal mode.
if(!(devNoTexFix && surface.hasFixMaterial()))
{
if(surface.hasMaterial() || surface.parent().type() != DMU_PLANE)
return surface.materialPtr();
}
// Use special "missing" material.
return &resSys().material(de::Uri("System", Path("missing")));
case 2: // Lighting debug mode.
if(surface.hasMaterial() && !(!devNoTexFix && surface.hasFixMaterial()))
{
if(!surface.hasSkyMaskedMaterial() || devRendSkyMode)
{
// Use the special "gray" material.
return &resSys().material(de::Uri("System", Path("gray")));
}
}
break;
default: break;
}
// No material, then.
return nullptr;
}
/**
* This doesn't create a rendering primitive but a vissprite! The vissprite
* represents the masked poly and will be rendered during the rendering
* of sprites. This is necessary because all masked polygons must be
* rendered back-to-front, or there will be alpha artifacts along edges.
*/
void Rend_AddMaskedPoly(Vector3f const *rvertices, Vector4f const *rcolors,
coord_t wallLength, MaterialAnimator *matAnimator, Vector2f const &materialOrigin,
blendmode_t blendMode, duint lightListIdx, dfloat glow)
{
vissprite_t *vis = R_NewVisSprite(VSPR_MASKED_WALL);
vis->pose.origin = (rvertices[0] + rvertices[3]) / 2;
vis->pose.distance = Rend_PointDist2D(vis->pose.origin);
VS_WALL(vis)->texOffset[0] = materialOrigin[0];
VS_WALL(vis)->texOffset[1] = materialOrigin[1];
// Masked walls are sometimes used for special effects like arcs,
// cobwebs and bottoms of sails. In order for them to look right,
// we need to disable texture wrapping on the horizontal axis (S).
// Most masked walls need wrapping, though. What we need to do is
// look at the texture coordinates and see if they require texture
// wrapping.
if(renderTextures)
{
// Ensure we've up to date info about the material.
matAnimator->prepare();
Vector2i const &matDimensions = matAnimator->dimensions();
VS_WALL(vis)->texCoord[0][0] = VS_WALL(vis)->texOffset[0] / matDimensions.x;
VS_WALL(vis)->texCoord[1][0] = VS_WALL(vis)->texCoord[0][0] + wallLength / matDimensions.x;
VS_WALL(vis)->texCoord[0][1] = VS_WALL(vis)->texOffset[1] / matDimensions.y;
VS_WALL(vis)->texCoord[1][1] = VS_WALL(vis)->texCoord[0][1] +
(rvertices[3].z - rvertices[0].z) / matDimensions.y;
dint wrapS = GL_REPEAT, wrapT = GL_REPEAT;
if(!matAnimator->isOpaque())
{
if(!(VS_WALL(vis)->texCoord[0][0] < 0 || VS_WALL(vis)->texCoord[0][0] > 1 ||
VS_WALL(vis)->texCoord[1][0] < 0 || VS_WALL(vis)->texCoord[1][0] > 1))
{
// Visible portion is within the actual [0..1] range.
wrapS = GL_CLAMP_TO_EDGE;
}
// Clamp on the vertical axis if the coords are in the normal [0..1] range.
if(!(VS_WALL(vis)->texCoord[0][1] < 0 || VS_WALL(vis)->texCoord[0][1] > 1 ||
VS_WALL(vis)->texCoord[1][1] < 0 || VS_WALL(vis)->texCoord[1][1] > 1))
{
wrapT = GL_CLAMP_TO_EDGE;
}
}
// Choose a specific variant for use as a middle wall section.
matAnimator = &matAnimator->material().getAnimator(Rend_MapSurfaceMaterialSpec(wrapS, wrapT));
}
VS_WALL(vis)->animator = matAnimator;
VS_WALL(vis)->blendMode = blendMode;
for(dint i = 0; i < 4; ++i)
{
VS_WALL(vis)->vertices[i].pos[0] = rvertices[i].x;
VS_WALL(vis)->vertices[i].pos[1] = rvertices[i].y;
VS_WALL(vis)->vertices[i].pos[2] = rvertices[i].z;
for(dint c = 0; c < 4; ++c)
{
/// @todo Do not clamp here.
VS_WALL(vis)->vertices[i].color[c] = de::clamp(0.f, rcolors[i][c], 1.f);
}
}
/// @todo Semitransparent masked polys arn't lit atm
if(glow < 1 && lightListIdx && numTexUnits > 1 && envModAdd &&
!(rcolors[0].w < 1))
{
// The dynlights will have already been sorted so that the brightest
// and largest of them is first in the list. So grab that one.
rendSys().forAllSurfaceProjections(lightListIdx, [&vis] (ProjectedTextureData const &tp)
{
VS_WALL(vis)->modTex = tp.texture;
VS_WALL(vis)->modTexCoord[0][0] = tp.topLeft.x;
VS_WALL(vis)->modTexCoord[0][1] = tp.topLeft.y;
VS_WALL(vis)->modTexCoord[1][0] = tp.bottomRight.x;
VS_WALL(vis)->modTexCoord[1][1] = tp.bottomRight.y;
for(dint c = 0; c < 4; ++c)
{
VS_WALL(vis)->modColor[c] = tp.color[c];
}
return LoopAbort;
});
}
else
{
VS_WALL(vis)->modTex = 0;
}
}
static void quadTexCoords(Vector2f *tc, Vector3f const *rverts, coord_t wallLength, Vector3d const &topLeft)
{
DENG2_ASSERT(tc && rverts);
tc[0].x = tc[1].x = rverts[0].x - topLeft.x;
tc[3].y = tc[1].y = rverts[0].y - topLeft.y;
tc[3].x = tc[2].x = tc[0].x + wallLength;
tc[2].y = tc[3].y + (rverts[1].z - rverts[0].z);
tc[0].y = tc[3].y + (rverts[3].z - rverts[2].z);
}
static void lightVertex(Vector4f &color, Vector3f const &vtx, dfloat lightLevel, Vector3f const &ambientColor)
{
dfloat const dist = Rend_PointDist2D(vtx);
// Apply distance attenuation.
lightLevel = Rend_AttenuateLightLevel(dist, lightLevel);
// Add extra light.
lightLevel = de::clamp(0.f, lightLevel + Rend_ExtraLightDelta(), 1.f);
Rend_ApplyLightAdaptation(lightLevel);
for(dint i = 0; i < 3; ++i)
{
color[i] = lightLevel * ambientColor[i];
}
}
/**
* Apply map-space lighting to the given geometry. All vertex lighting contributions affecting
* map-space geometry are applied here.
*
* @param verts Geometry to be illuminated.
*
* Surface geometry:
* @param numVertices Total number of map-space surface geometry vertices.
* @param posCoords Position coordinates for the map-space surface geometry.
* @param mapElement Source MapElement for the map-space surface geometry.
* @param geomGroup Source MapElement geometry-group selector, for the map-space surface geometry.
* @param surfaceTangents Tangent-space vectors for the map-space surface geometry.
*
* Surface lighting characteristics:
* @param color Tint color.
* @param color2 Secondary tint color, for walls (if any).
* @param glowing Self-luminosity factor (normalized [0..1]).
* @param luminosityDeltas Edge luminosity deltas (for walls [left edge, right edge]).
*/
static void lightWallOrFlatGeometry(Geometry &verts, duint numVertices, Vector3f const *posCoords,
MapElement &mapElement, dint geomGroup, Matrix3f const &surfaceTangents,
Vector3f const &color, Vector3f const *color2, dfloat glowing, dfloat const luminosityDeltas[2])
{
bool const haveWall = mapElement.is<LineSideSegment>();
SectorCluster &cluster = ::curSubspace->cluster();
// Uniform color?
if(::levelFullBright || !(glowing < 1))
{
dfloat const lum = de::clamp(0.f, ::curSectorLightLevel + (::levelFullBright? 1 : glowing), 1.f);
Vector4f const uniformColor(lum, lum, lum, 0);
for(duint i = 0; i < numVertices; ++i)
{
verts.color[i] = uniformColor;
}
return;
}
if(::useBias) // Bias lighting model.
{
Map &map = cluster.sector().map();
Shard &shard = cluster.shard(mapElement, geomGroup);
// Apply the ambient light term from the grid (if available).
if(map.hasLightGrid())
{
for(duint i = 0; i < numVertices; ++i)
{
verts.color[i] = map.lightGrid().evaluate(posCoords[i]);
}
}
// Apply bias light source contributions.
shard.lightWithBiasSources(posCoords, verts.color, surfaceTangents, map.biasCurrentTime());
// Apply surface glow.
if(glowing > 0)
{
Vector4f const glow(glowing, glowing, glowing, 0);
for(duint i = 0; i < numVertices; ++i)
{
verts.color[i] += glow;
}
}
// Apply light range compression and clamp.
for(duint i = 0; i < numVertices; ++i)
{
Vector4f &color = verts.color[i];
for(dint k = 0; k < 3; ++k)
{
color[k] = de::clamp(0.f, color[k] + Rend_LightAdaptationDelta(color[k]), 1.f);
}
}
}
else // Doom lighting model.
{
// Blend sector light color with the surface color tint.
Vector3f const colorBlended = ::curSectorLightColor * color;
dfloat const lumLeft = de::clamp(0.f, ::curSectorLightLevel + luminosityDeltas[0] + glowing, 1.f);
dfloat const lumRight = de::clamp(0.f, ::curSectorLightLevel + luminosityDeltas[1] + glowing, 1.f);
if(haveWall && !de::fequal(lumLeft, lumRight))
{
lightVertex(verts.color[0], posCoords[0], lumLeft, colorBlended);
lightVertex(verts.color[1], posCoords[1], lumLeft, colorBlended);
lightVertex(verts.color[2], posCoords[2], lumRight, colorBlended);
lightVertex(verts.color[3], posCoords[3], lumRight, colorBlended);
}
else
{
for(duint i = 0; i < numVertices; ++i)
{
lightVertex(verts.color[i], posCoords[i], lumLeft, colorBlended);
}
}
// Secondary color?
if(haveWall && color2)
{
// Blend the secondary surface color tint with the sector light color.
Vector3f const color2Blended = ::curSectorLightColor * (*color2);
lightVertex(verts.color[0], posCoords[0], lumLeft, color2Blended);
lightVertex(verts.color[2], posCoords[2], lumRight, color2Blended);
}
}
// Apply torch light?
DENG2_ASSERT(::viewPlayer);
if(::viewPlayer->shared.fixedColorMap)
{
for(duint i = 0; i < numVertices; ++i)
{
Rend_ApplyTorchLight(verts.color[i], Rend_PointDist2D(posCoords[i]));
}
}
}
static void makeFlatGeometry(Geometry &verts, duint numVertices, Vector3f const *posCoords,
Vector3d const &topLeft, Vector3d const & /*bottomRight*/, MapElement &mapElement, dint geomGroup,
Matrix3f const &surfaceTangents, dfloat uniformOpacity, Vector3f const &color, Vector3f const *color2,
dfloat glowing, dfloat const luminosityDeltas[2], bool useVertexLighting = true)
{
DENG2_ASSERT(posCoords);
for(duint i = 0; i < numVertices; ++i)
{
verts.pos[i] = posCoords[i];
Vector3f const delta(posCoords[i] - topLeft);
if(verts.tex) // Primary.
{
verts.tex[i] = Vector2f(delta.x, -delta.y);
}
if(verts.tex2) // Inter.
{
verts.tex2[i] = Vector2f(delta.x, -delta.y);
}
}
// Light the geometry?
if(useVertexLighting)
{
lightWallOrFlatGeometry(verts, numVertices, posCoords, mapElement, geomGroup, surfaceTangents,
color, color2, glowing, luminosityDeltas);
// Apply uniform opacity (overwritting luminance factors).
for(duint i = 0; i < numVertices; ++i)
{
verts.color[i].w = uniformOpacity;
}
}
}
static void makeWallGeometry(Geometry &verts, duint numVertices, Vector3f const *posCoords,
Vector3d const &topLeft, Vector3d const & /*bottomRight*/, coord_t sectionWidth,
MapElement &mapElement, dint geomGroup, Matrix3f const &surfaceTangents, dfloat uniformOpacity,
Vector3f const &color, Vector3f const *color2, dfloat glowing, dfloat const luminosityDeltas[2],
bool useVertexLighting = true)
{
DENG2_ASSERT(posCoords);
for(duint i = 0; i < numVertices; ++i)
{
verts.pos[i] = posCoords[i];
}
if(verts.tex) // Primary.
{
quadTexCoords(verts.tex, posCoords, sectionWidth, topLeft);
}
if(verts.tex2) // Inter.
{
quadTexCoords(verts.tex2, posCoords, sectionWidth, topLeft);
}
// Light the geometry?
if(useVertexLighting)
{
lightWallOrFlatGeometry(verts, numVertices, posCoords, mapElement, geomGroup, surfaceTangents,
color, color2, glowing, luminosityDeltas);
// Apply uniform opacity (overwritting luminance factors).
for(duint i = 0; i < numVertices; ++i)
{
verts.color[i].w = uniformOpacity;
}
}
}
static inline dfloat shineVertical(dfloat dy, dfloat dx)
{
return ((std::atan(dy/dx) / (PI/2)) + 1) / 2;
}
static void makeFlatShineGeometry(Geometry &verts, duint numVertices, Vector3f const *posCoords,
Geometry const &mainVerts, Vector3f const &shineColor, dfloat shineOpacity)
{
DENG2_ASSERT(posCoords);
for(duint i = 0; i < numVertices; ++i)
{
Vector3f const eye = Rend_EyeOrigin();