/
r_things.cpp
1476 lines (1258 loc) · 47.3 KB
/
r_things.cpp
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/**
* @file r_things.cpp Map Object Management and Refresh
* @ingroup render
*
* @author Copyright © 2003-2012 Jaakko Keränen <jaakko.keranen@iki.fi>
* @author Copyright © 2006-2012 Daniel Swanson <danij@dengine.net>
* @author Copyright © 2006 Jamie Jones <jamie_jones_au@yahoo.com.au>
* @author Copyright © 1993-1996 by id Software, Inc.
*
* @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 <cstdio>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include "de_base.h"
#include "de_console.h"
#include "de_network.h"
#include "de_play.h"
#include "de_render.h"
#include "de_graphics.h"
#include "de_misc.h"
#include "de_resource.h"
#include "def_main.h"
#include "m_stack.h"
#include <de/memoryblockset.h>
#define MAX_FRAMES (128)
#define MAX_OBJECT_RADIUS (128)
typedef struct spriterecord_frame_s {
byte frame[2];
byte rotation[2];
material_t* mat;
struct spriterecord_frame_s* next;
} spriterecord_frame_t;
typedef struct spriterecord_s {
char name[5];
int numFrames;
spriterecord_frame_t* frames;
struct spriterecord_s* next;
} spriterecord_t;
float weaponOffsetScale = 0.3183f; // 1/Pi
int weaponOffsetScaleY = 1000;
float weaponFOVShift = 45;
byte weaponScaleMode = SCALEMODE_SMART_STRETCH;
float modelSpinSpeed = 1;
int alwaysAlign = 0;
int noSpriteZWrite = false;
float pspOffset[2] = {0, 0};
float pspLightLevelMultiplier = 1;
// useSRVO: 1 = models only, 2 = sprites + models
int useSRVO = 2, useSRVOAngle = true;
int psp3d;
// Variables used to look up and range check sprites patches.
spritedef_t* sprites = 0;
int numSprites = 0;
vissprite_t visSprites[MAXVISSPRITES], *visSpriteP;
vispsprite_t visPSprites[DDMAXPSPRITES];
int maxModelDistance = 1500;
int levelFullBright = false;
vissprite_t visSprSortedHead;
static vissprite_t overflowVisSprite;
// Tempory storage, used when reading sprite definitions.
static int numSpriteRecords;
static spriterecord_t* spriteRecords;
static blockset_t* spriteRecordBlockSet, *spriteRecordFrameBlockSet;
static void clearSpriteDefs()
{
int i;
if(numSprites <= 0) return;
for(i = 0; i < numSprites; ++i)
{
spritedef_t* sprDef = &sprites[i];
if(sprDef->spriteFrames) free(sprDef->spriteFrames);
}
free(sprites), sprites = NULL;
numSprites = 0;
}
static void installSpriteLump(spriteframe_t* sprTemp, int* maxFrame,
material_t* mat, uint frame, uint rotation, boolean flipped)
{
if(frame >= 30 || rotation > 8)
{
return;
}
if((int) frame > *maxFrame)
*maxFrame = frame;
if(rotation == 0)
{
int r;
// This frame should be used for all rotations.
sprTemp[frame].rotate = false;
for(r = 0; r < 8; ++r)
{
sprTemp[frame].mats[r] = mat;
sprTemp[frame].flip[r] = (byte) flipped;
}
return;
}
rotation--; // Make 0 based.
sprTemp[frame].rotate = true;
sprTemp[frame].mats[rotation] = mat;
sprTemp[frame].flip[rotation] = (byte) flipped;
}
static spriterecord_t* findSpriteRecordForName(char const *name)
{
spriterecord_t* rec = NULL;
if(name && name[0] && spriteRecords)
{
rec = spriteRecords;
while(strnicmp(rec->name, name, 4) && (rec = rec->next)) {}
}
return rec;
}
/**
* In DOOM, a sprite frame is a patch texture contained in a lump
* existing between the S_START and S_END marker lumps (in WAD) whose
* lump name matches the following pattern:
*
* NAME|A|R(A|R) (for example: "TROOA0" or "TROOA2A8")
*
* NAME: Four character name of the sprite.
* A: Animation frame ordinal 'A'... (ASCII).
* R: Rotation angle 0...8
* 0 : Use this frame for ALL angles.
* 1...8 : Angle of rotation in 45 degree increments.
*
* The second set of (optional) frame and rotation characters instruct
* that the same sprite frame is to be used for an additional frame
* but that the sprite patch should be flipped horizontally (right to
* left) during the loading phase.
*
* Sprite rotation 0 is facing the viewer, rotation 1 is one angle
* turn CLOCKWISE around the axis. This is not the same as the angle,
* which increases counter clockwise (protractor).
*/
static void buildSprite(de::TextureManifest &manifest)
{
// Have we already encountered this name?
de::String decodedPath = QString(QByteArray::fromPercentEncoding(manifest.path().toUtf8()));
QByteArray decodedPathUtf8 = decodedPath.toUtf8();
spriterecord_t *rec = findSpriteRecordForName(decodedPathUtf8.constData());
if(!rec)
{
// An entirely new sprite.
rec = (spriterecord_t *) BlockSet_Allocate(spriteRecordBlockSet);
strncpy(rec->name, decodedPathUtf8.constData(), 4);
rec->name[4] = '\0';
rec->numFrames = 0;
rec->frames = NULL;
rec->next = spriteRecords;
spriteRecords = rec;
++numSpriteRecords;
}
// Add the frame(s).
int const frameNumber = decodedPath.at(4).toUpper().unicode() - QChar('A').unicode() + 1;
int const rotationNumber = decodedPath.at(5).digitValue();
bool link = false;
spriterecord_frame_t *frame = rec->frames;
if(rec->frames)
{
while(!(frame->frame[0] == frameNumber &&
frame->rotation[0] == rotationNumber) &&
(frame = frame->next)) {}
}
if(!frame)
{
// A new frame.
frame = (spriterecord_frame_t *) BlockSet_Allocate(spriteRecordFrameBlockSet);
link = true;
}
de::Uri uri = de::Uri("Sprites", manifest.path());
frame->mat = Materials_ToMaterial(Materials_ResolveUri(reinterpret_cast<uri_s *>(&uri)));
frame->frame[0] = frameNumber;
frame->rotation[0] = rotationNumber;
// Not mirrored?
if(decodedPath.length() >= 8)
{
frame->frame[1] = decodedPath.at(6).toUpper().unicode() - QChar('A').unicode() + 1;
frame->rotation[1] = decodedPath.at(7).digitValue();
}
else
{
frame->frame[1] = 0;
frame->rotation[1] = 0;
}
if(link)
{
frame->next = rec->frames;
rec->frames = frame;
}
}
static void buildSprites()
{
de::Time begunAt;
numSpriteRecords = 0;
spriteRecords = 0;
spriteRecordBlockSet = BlockSet_New(sizeof(spriterecord_t), 64),
spriteRecordFrameBlockSet = BlockSet_New(sizeof(spriterecord_frame_t), 256);
de::PathTreeIterator<de::TextureScheme::Index> iter(App_Textures()->scheme("Sprites").index().leafNodes());
while(iter.hasNext())
{
buildSprite(iter.next());
}
LOG_INFO(de::String("buildSprites: Done in %1 seconds.").arg(begunAt.since(), 0, 'g', 2));
}
/**
* Builds the sprite rotation matrixes to account for horizontally flipped
* sprites. Will report an error if the lumps are inconsistant.
*
* Sprite lump names are 4 characters for the actor, a letter for the frame,
* and a number for the rotation, A sprite that is flippable will have an
* additional letter/number appended. The rotation character can be 0 to
* signify no rotations.
*/
static void initSpriteDefs(spriterecord_t *const *sprRecords, int num)
{
clearSpriteDefs();
numSprites = num;
if(numSprites)
{
spriteframe_t sprTemp[MAX_FRAMES];
int maxFrame, rotation, n, j;
sprites = (spritedef_t *) M_Malloc(sizeof(*sprites) * numSprites);
if(!sprites) Con_Error("initSpriteDefs: Failed on allocation of %lu bytes for SpriteDef list.", (unsigned long) sizeof(*sprites) * numSprites);
for(n = 0; n < num; ++n)
{
spritedef_t *sprDef = &sprites[n];
spriterecord_frame_t const *frame;
spriterecord_t const *rec;
if(!sprRecords[n])
{
// A record for a sprite we were unable to locate.
sprDef->numFrames = 0;
sprDef->spriteFrames = NULL;
continue;
}
rec = sprRecords[n];
memset(sprTemp, -1, sizeof(sprTemp));
maxFrame = -1;
frame = rec->frames;
do
{
installSpriteLump(sprTemp, &maxFrame, frame->mat, frame->frame[0] - 1,
frame->rotation[0], false);
if(frame->frame[1])
{
installSpriteLump(sprTemp, &maxFrame, frame->mat, frame->frame[1] - 1,
frame->rotation[1], true);
}
} while((frame = frame->next));
/**
* Check the frames that were found for completeness.
*/
if(-1 == maxFrame)
{
// Should NEVER happen. djs - So why is this here then?
sprDef->numFrames = 0;
}
++maxFrame;
for(j = 0; j < maxFrame; ++j)
{
switch((int) sprTemp[j].rotate)
{
case -1: // No rotations were found for that frame at all.
Con_Error("R_InitSprites: No patches found for %s frame %c.", rec->name, j + 'A');
break;
case 0: // Only the first rotation is needed.
break;
case 1: // Must have all 8 frames.
for(rotation = 0; rotation < 8; ++rotation)
{
if(!sprTemp[j].mats[rotation])
Con_Error("R_InitSprites: Sprite %s frame %c is missing rotations.", rec->name, j + 'A');
}
break;
default:
Con_Error("R_InitSpriteDefs: Invalid value, sprTemp[frame].rotate = %i.", (int) sprTemp[j].rotate);
exit(1); // Unreachable.
}
}
// Allocate space for the frames present and copy sprTemp to it.
strncpy(sprDef->name, rec->name, 4);
sprDef->name[4] = '\0';
sprDef->numFrames = maxFrame;
sprDef->spriteFrames = (spriteframe_t*) M_Malloc(sizeof(*sprDef->spriteFrames) * maxFrame);
if(!sprDef->spriteFrames) Con_Error("R_InitSpriteDefs: Failed on allocation of %lu bytes for sprite frame list.", (unsigned long) sizeof(*sprDef->spriteFrames) * maxFrame);
memcpy(sprDef->spriteFrames, sprTemp, sizeof *sprDef->spriteFrames * maxFrame);
}
}
}
void R_InitSprites()
{
de::Time begunAt;
LOG_VERBOSE("Building Sprites...");
buildSprites();
/**
* @attention Kludge:
* As the games still rely upon the sprite definition indices matching
* those of the sprite name table, use the latter to re-index the sprite
* record database.
* New sprites added in mods that we do not have sprite name defs for
* are pushed to the end of the list (this is fine as the game will not
* attempt to reference them by either name or indice as they are not
* present in their game-side sprite index tables. Similarly, DeHackED
* does not allow for new sprite frames to be added anyway).
*
* @todo
* This unobvious requirement should be broken somehow and perhaps even
* get rid of the sprite name definitions entirely.
*/
if(numSpriteRecords)
{
int max = MAX_OF(numSpriteRecords, countSprNames.num);
if(max > 0)
{
spriterecord_t *rec, **list = (spriterecord_t **) M_Calloc(sizeof(spriterecord_t *) * max);
int n = max - 1;
rec = spriteRecords;
do
{
int idx = Def_GetSpriteNum(rec->name);
list[idx == -1? n-- : idx] = rec;
} while((rec = rec->next));
// Create sprite definitions from the located sprite patch lumps.
initSpriteDefs(list, max);
M_Free(list);
}
}
// Kludge end
// We are now done with the sprite records.
BlockSet_Delete(spriteRecordBlockSet); spriteRecordBlockSet = 0;
BlockSet_Delete(spriteRecordFrameBlockSet); spriteRecordFrameBlockSet = 0;
numSpriteRecords = 0;
LOG_INFO(de::String("R_InitSprites: Done in %1 seconds.").arg(begunAt.since(), 0, 'g', 2));
}
void R_ShutdownSprites()
{
clearSpriteDefs();
}
material_t *R_GetMaterialForSprite(int sprite, int frame)
{
if((unsigned) sprite < (unsigned) numSprites)
{
spritedef_t *sprDef = &sprites[sprite];
if(frame < sprDef->numFrames)
return sprDef->spriteFrames[frame].mats[0];
}
//LOG_WARNING("R_GetMaterialForSprite: Invalid sprite %i and/or frame %i.") << sprite << frame;
return NULL;
}
boolean R_GetSpriteInfo(int sprite, int frame, spriteinfo_t *info)
{
LOG_AS("R_GetSpriteInfo");
if((unsigned) sprite >= (unsigned) numSprites)
{
LOG_WARNING("Invalid sprite number %i.") << sprite;
return false;
}
spritedef_t *sprDef = &sprites[sprite];
if(frame >= sprDef->numFrames)
{
// We have no information to return.
LOG_WARNING("Invalid sprite frame %i.") << frame;
memset(info, 0, sizeof(*info));
return false;
}
spriteframe_t *sprFrame = &sprDef->spriteFrames[frame];
if(novideo)
{
// We can't prepare the material.
memset(info, 0, sizeof(*info));
info->numFrames = sprDef->numFrames;
info->flip = sprFrame->flip[0];
return true;
}
material_t *mat = sprFrame->mats[0];
/// @todo fixme: We should not be using the PSprite spec here. -ds
materialvariantspecification_t const *spec =
Materials_VariantSpecificationForContext(MC_PSPRITE, 0, 1, 0, 0,
GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 0, 1, -1,
false, true, true, false);
materialsnapshot_t const *ms = Materials_Prepare(mat, spec, false);
de::Texture &tex = reinterpret_cast<de::Texture &>(*MSU_texture(ms, MTU_PRIMARY));
variantspecification_t const *texSpec = TS_GENERAL(MSU_texturespec(ms, MTU_PRIMARY));
DENG_ASSERT(texSpec);
info->numFrames = sprDef->numFrames;
info->material = mat;
info->flip = sprFrame->flip[0];
info->geometry.origin.x = -tex.origin().x() + -texSpec->border;
info->geometry.origin.y = -tex.origin().y() + texSpec->border;
info->geometry.size.width = ms->size.width + texSpec->border*2;
info->geometry.size.height = ms->size.height + texSpec->border*2;
TextureVariant_Coords(MST(ms, MTU_PRIMARY), &info->texCoord[0], &info->texCoord[1]);
return true;
}
static modeldef_t *currentModelDefForMobj(mobj_t *mo)
{
// If models are being used, use the model's radius.
if(useModels)
{
modeldef_t *mf = 0, *nextmf = 0;
Models_ModelForMobj(mo, &mf, &nextmf);
return mf;
}
return 0;
}
coord_t R_VisualRadius(mobj_t *mo)
{
// If models are being used, use the model's radius.
if(modeldef_t *mf = currentModelDefForMobj(mo))
{
return mf->visualRadius;
}
// Use the sprite frame's width?
if(material_t *material = R_GetMaterialForSprite(mo->sprite, mo->frame))
{
materialsnapshot_t const *ms = Materials_Prepare(material, Sprite_MaterialSpec(0/*tclass*/, 0/*tmap*/), true);
return ms->size.width / 2;
}
// Use the physical radius.
return mo->radius;
}
float R_ShadowStrength(mobj_t *mo)
{
DENG_ASSERT(mo);
float const minSpriteAlphaLimit = .1f;
float ambientLightLevel, strength = .65f; ///< Default strength factor.
// Is this mobj in a valid state for shadow casting?
if(!mo->state || !mo->bspLeaf) return 0;
// Should this mobj even have a shadow?
if((mo->state->flags & STF_FULLBRIGHT) ||
(mo->ddFlags & DDMF_DONTDRAW) || (mo->ddFlags & DDMF_ALWAYSLIT))
return 0;
// Sample the ambient light level at the mobj's position.
if(useBias)
{
// Evaluate in the light grid.
vec3d_t point; V3d_Set(point, mo->origin[VX], mo->origin[VY], mo->origin[VZ]);
ambientLightLevel = LG_EvaluateLightLevel(point);
}
else
{
ambientLightLevel = mo->bspLeaf->sector->lightLevel;
Rend_ApplyLightAdaptation(&ambientLightLevel);
}
// Sprites have their own shadow strength factor.
if(!currentModelDefForMobj(mo))
{
material_t *mat = R_GetMaterialForSprite(mo->sprite, mo->frame);
if(mat)
{
// Ensure we've prepared this.
materialsnapshot_t const *ms = Materials_Prepare(mat, Sprite_MaterialSpec(0/*tclass*/, 0/*tmap*/), true);
averagealpha_analysis_t const *aa = (averagealpha_analysis_t const *) Texture_AnalysisDataPointer(MSU_texture(ms, MTU_PRIMARY), TA_ALPHA);
float weightedSpriteAlpha;
if(!aa)
{
QByteArray uri = reinterpret_cast<de::Texture &>(*MSU_texture(ms, MTU_PRIMARY)).manifest().composeUri().asText().toUtf8();
Con_Error("R_ShadowStrength: Texture \"%s\" has no TA_ALPHA analysis", uri.constData());
}
// We use an average which factors in the coverage ratio
// of alpha:non-alpha pixels.
/// @todo Constant weights could stand some tweaking...
weightedSpriteAlpha = aa->alpha * (0.4f + (1 - aa->coverage) * 0.6f);
// Almost entirely translucent sprite? => no shadow.
if(weightedSpriteAlpha < minSpriteAlphaLimit) return 0;
// Apply this factor.
strength *= MIN_OF(1, 0.2f + weightedSpriteAlpha);
}
}
// Factor in Mobj alpha.
strength *= R_Alpha(mo);
/// @note This equation is the same as that used for fakeradio.
return (0.6f - ambientLightLevel * 0.4f) * strength;
}
float R_Alpha(mobj_t *mo)
{
DENG_ASSERT(mo);
float alpha = (mo->ddFlags & DDMF_BRIGHTSHADOW)? .80f :
(mo->ddFlags & DDMF_SHADOW)? .33f :
(mo->ddFlags & DDMF_ALTSHADOW)? .66f : 1;
/**
* The three highest bits of the selector are used for alpha.
* 0 = opaque (alpha -1)
* 1 = 1/8 transparent
* 4 = 1/2 transparent
* 7 = 7/8 transparent
*/
int selAlpha = mo->selector >> DDMOBJ_SELECTOR_SHIFT;
if(selAlpha & 0xe0)
{
alpha *= 1 - ((selAlpha & 0xe0) >> 5) / 8.0f;
}
else if(mo->translucency)
{
alpha *= 1 - mo->translucency * reciprocal255;
}
return alpha;
}
void R_ClearVisSprites()
{
visSpriteP = visSprites;
}
vissprite_t *R_NewVisSprite()
{
vissprite_t *spr;
if(visSpriteP == &visSprites[MAXVISSPRITES])
{
spr = &overflowVisSprite;
}
else
{
visSpriteP++;
spr = visSpriteP - 1;
}
memset(spr, 0, sizeof(*spr));
return spr;
}
void R_ProjectPlayerSprites()
{
int i;
float inter;
modeldef_t *mf, *nextmf;
ddpsprite_t *psp;
boolean isFullBright = (levelFullBright != 0);
boolean isModel;
ddplayer_t *ddpl = &viewPlayer->shared;
viewdata_t const *viewData = R_ViewData(viewPlayer - ddPlayers);
psp3d = false;
// Cameramen have no psprites.
if((ddpl->flags & DDPF_CAMERA) || (ddpl->flags & DDPF_CHASECAM))
return;
// Determine if we should be drawing all the psprites full bright?
if(!isFullBright)
{
for(i = 0, psp = ddpl->pSprites; i < DDMAXPSPRITES; ++i, psp++)
{
if(!psp->statePtr) continue;
// If one of the psprites is fullbright, both are.
if(psp->statePtr->flags & STF_FULLBRIGHT)
isFullBright = true;
}
}
for(i = 0, psp = ddpl->pSprites; i < DDMAXPSPRITES; ++i, psp++)
{
vispsprite_t* spr = &visPSprites[i];
spr->type = VPSPR_SPRITE;
spr->psp = psp;
if(!psp->statePtr) continue;
// First, determine whether this is a model or a sprite.
isModel = false;
if(useModels)
{
// Is there a model for this frame?
mobj_t dummy;
// Setup a dummy for the call to R_CheckModelFor.
dummy.state = psp->statePtr;
dummy.tics = psp->tics;
inter = Models_ModelForMobj(&dummy, &mf, &nextmf);
if(mf) isModel = true;
}
if(isModel)
{
// Yes, draw a 3D model (in Rend_Draw3DPlayerSprites).
// There are 3D psprites.
psp3d = true;
spr->type = VPSPR_MODEL;
spr->data.model.bspLeaf = ddpl->mo->bspLeaf;
spr->data.model.flags = 0;
// 32 is the raised weapon height.
spr->data.model.gzt = viewData->current.origin[VZ];
spr->data.model.secFloor = ddpl->mo->bspLeaf->sector->SP_floorvisheight;
spr->data.model.secCeil = ddpl->mo->bspLeaf->sector->SP_ceilvisheight;
spr->data.model.pClass = 0;
spr->data.model.floorClip = 0;
spr->data.model.mf = mf;
spr->data.model.nextMF = nextmf;
spr->data.model.inter = inter;
spr->data.model.viewAligned = true;
spr->origin[VX] = viewData->current.origin[VX];
spr->origin[VY] = viewData->current.origin[VY];
spr->origin[VZ] = viewData->current.origin[VZ];
// Offsets to rotation angles.
spr->data.model.yawAngleOffset = psp->pos[VX] * weaponOffsetScale - 90;
spr->data.model.pitchAngleOffset =
(32 - psp->pos[VY]) * weaponOffsetScale * weaponOffsetScaleY / 1000.0f;
// Is the FOV shift in effect?
if(weaponFOVShift > 0 && fieldOfView > 90)
spr->data.model.pitchAngleOffset -= weaponFOVShift * (fieldOfView - 90) / 90;
// Real rotation angles.
spr->data.model.yaw =
viewData->current.angle / (float) ANGLE_MAX *-360 + spr->data.model.yawAngleOffset + 90;
spr->data.model.pitch = viewData->current.pitch * 85 / 110 + spr->data.model.yawAngleOffset;
memset(spr->data.model.visOff, 0, sizeof(spr->data.model.visOff));
spr->data.model.alpha = psp->alpha;
spr->data.model.stateFullBright = (psp->flags & DDPSPF_FULLBRIGHT)!=0;
}
else
{
// No, draw a 2D sprite (in Rend_DrawPlayerSprites).
spr->type = VPSPR_SPRITE;
// Adjust the center slightly so an angle can be calculated.
spr->origin[VX] = viewData->current.origin[VX];
spr->origin[VY] = viewData->current.origin[VY];
spr->origin[VZ] = viewData->current.origin[VZ];
spr->data.sprite.bspLeaf = ddpl->mo->bspLeaf;
spr->data.sprite.alpha = psp->alpha;
spr->data.sprite.isFullBright = (psp->flags & DDPSPF_FULLBRIGHT)!=0;
}
}
}
float R_MovementYaw(float const mom[])
{
// Multiply by 100 to get some artificial accuracy in bamsAtan2.
return BANG2DEG(bamsAtan2(-100 * mom[MY], 100 * mom[MX]));
}
float R_MovementXYYaw(float momx, float momy)
{
float mom[2] = { momx, momy };
return R_MovementYaw(mom);
}
float R_MovementPitch(float const mom[])
{
return BANG2DEG(bamsAtan2 (100 * mom[MZ], 100 * V2f_Length(mom)));
}
float R_MovementXYZPitch(float momx, float momy, float momz)
{
float mom[3] = { momx, momy, momz };
return R_MovementPitch(mom);
}
typedef struct {
vissprite_t *vis;
mobj_t const *mo;
boolean floorAdjust;
} vismobjzparams_t;
/**
* Determine the correct Z coordinate for the mobj. The visible Z coordinate
* may be slightly different than the actual Z coordinate due to smoothed
* plane movement.
*/
int RIT_VisMobjZ(Sector *sector, void *parameters)
{
DENG_ASSERT(sector);
DENG_ASSERT(parameters);
vismobjzparams_t *p = (vismobjzparams_t *) parameters;
if(p->floorAdjust && p->mo->origin[VZ] == sector->SP_floorheight)
{
p->vis->origin[VZ] = sector->SP_floorvisheight;
}
if(p->mo->origin[VZ] + p->mo->height == sector->SP_ceilheight)
{
p->vis->origin[VZ] = sector->SP_ceilvisheight - p->mo->height;
}
return false; // Continue iteration.
}
static void setupSpriteParamsForVisSprite(rendspriteparams_t *params,
float x, float y, float z, float distance, float visOffX, float visOffY, float visOffZ,
float /*secFloor*/, float /*secCeil*/, float /*floorClip*/, float /*top*/,
material_t *mat, boolean matFlipS, boolean matFlipT, blendmode_t blendMode,
float ambientColorR, float ambientColorG, float ambientColorB, float alpha,
uint vLightListIdx, int tClass, int tMap, BspLeaf *bspLeaf,
boolean /*floorAdjust*/, boolean /*fitTop*/, boolean /*fitBottom*/, boolean viewAligned)
{
materialvariantspecification_t const *spec;
MaterialVariant* variant;
if(!params) return; // Wha?
spec = Materials_VariantSpecificationForContext(MC_SPRITE, 0, 1, tClass, tMap,
GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, 1, -2, -1, true, true, true, false);
variant = Materials_ChooseVariant(mat, spec, true, true);
#ifdef _DEBUG
if(tClass || tMap) DENG_ASSERT(spec->primarySpec->data.variant.translated);
#endif
params->center[VX] = x;
params->center[VY] = y;
params->center[VZ] = z;
params->srvo[VX] = visOffX;
params->srvo[VY] = visOffY;
params->srvo[VZ] = visOffZ;
params->distance = distance;
params->bspLeaf = bspLeaf;
params->viewAligned = viewAligned;
params->noZWrite = noSpriteZWrite;
params->material = variant;
params->matFlip[0] = matFlipS;
params->matFlip[1] = matFlipT;
params->blendMode = (useSpriteBlend? blendMode : BM_NORMAL);
params->ambientColor[CR] = ambientColorR;
params->ambientColor[CG] = ambientColorG;
params->ambientColor[CB] = ambientColorB;
params->ambientColor[CA] = (useSpriteAlpha? alpha : 1);
params->vLightListIdx = vLightListIdx;
}
void setupModelParamsForVisSprite(rendmodelparams_t *params,
float x, float y, float z, float distance, float visOffX, float visOffY, float visOffZ,
float gzt, float yaw, float yawAngleOffset, float pitch, float pitchAngleOffset,
struct modeldef_s *mf, struct modeldef_s *nextMF, float inter,
float ambientColorR, float ambientColorG, float ambientColorB, float alpha,
uint vLightListIdx,
int id, int selector, BspLeaf * /*bspLeaf*/, int mobjDDFlags, int tmap,
boolean viewAlign, boolean /*fullBright*/, boolean alwaysInterpolate)
{
if(!params)
return; // Hmm...
params->mf = mf;
params->nextMF = nextMF;
params->inter = inter;
params->alwaysInterpolate = alwaysInterpolate;
params->id = id;
params->selector = selector;
params->flags = mobjDDFlags;
params->tmap = tmap;
params->origin[VX] = x;
params->origin[VY] = y;
params->origin[VZ] = z;
params->srvo[VX] = visOffX;
params->srvo[VY] = visOffY;
params->srvo[VZ] = visOffZ;
params->gzt = gzt;
params->distance = distance;
params->yaw = yaw;
params->extraYawAngle = 0;
params->yawAngleOffset = yawAngleOffset;
params->pitch = pitch;
params->extraPitchAngle = 0;
params->pitchAngleOffset = pitchAngleOffset;
params->extraScale = 0;
params->viewAlign = viewAlign;
params->mirror = 0;
params->shineYawOffset = 0;
params->shinePitchOffset = 0;
params->shineTranslateWithViewerPos = false;
params->shinepspriteCoordSpace = false;
params->ambientColor[CR] = ambientColorR;
params->ambientColor[CG] = ambientColorG;
params->ambientColor[CB] = ambientColorB;
params->ambientColor[CA] = alpha;
params->vLightListIdx = vLightListIdx;
}
void getLightingParams(coord_t x, coord_t y, coord_t z, BspLeaf* bspLeaf,
coord_t distance, boolean fullBright, float ambientColor[3], uint* vLightListIdx)
{
if(fullBright)
{
ambientColor[CR] = ambientColor[CG] = ambientColor[CB] = 1;
*vLightListIdx = 0;
}
else
{
collectaffectinglights_params_t lparams;
if(useBias)
{
vec3d_t point;
// Evaluate the position in the light grid.
V3d_Set(point, x, y, z);
LG_Evaluate(point, ambientColor);
}
else
{
float lightLevel = bspLeaf->sector->lightLevel;
const float* secColor = R_GetSectorLightColor(bspLeaf->sector);
/* if(spr->type == VSPR_DECORATION)
{
// Wall decorations receive an additional light delta.
lightLevel += R_WallAngleLightLevelDelta(linedef, side);
} */
// Apply distance attenuation.
lightLevel = R_DistAttenuateLightLevel(distance, lightLevel);
// Add extra light.
lightLevel += R_ExtraLightDelta();
Rend_ApplyLightAdaptation(&lightLevel);
// Determine the final ambientColor in affect.
ambientColor[CR] = lightLevel * secColor[CR];
ambientColor[CG] = lightLevel * secColor[CG];
ambientColor[CB] = lightLevel * secColor[CB];
}
Rend_ApplyTorchLight(ambientColor, distance);
lparams.starkLight = false;
lparams.origin[VX] = x;
lparams.origin[VY] = y;
lparams.origin[VZ] = z;
lparams.bspLeaf = bspLeaf;
lparams.ambientColor = ambientColor;
*vLightListIdx = R_CollectAffectingLights(&lparams);
}
}
void R_ProjectSprite(mobj_t *mo)
{
Sector *moSec;
float thangle = 0, alpha, yaw = 0, pitch = 0;
coord_t distance, gzt, floorClip, secFloor, secCeil;
vec3d_t visOff;
spritedef_t *sprDef;
spriteframe_t *sprFrame = NULL;
boolean matFlipS, matFlipT;
vissprite_t *vis;
boolean align, fullBright, viewAlign, floorAdjust;
modeldef_t *mf = 0, *nextmf = 0;
float interp = 0;
vismobjzparams_t params;
visspritetype_t visType = VSPR_SPRITE;
float ambientColor[3];
uint vLightListIdx = 0;
material_t *mat;
materialvariantspecification_t const *spec;
materialsnapshot_t const *ms;
viewdata_t const *viewData = R_ViewData(viewPlayer - ddPlayers);
coord_t moPos[3];
if(!mo) return;
// Never make a vissprite when DDMF_DONTDRAW is set or when when the mobj
// is in an invalid state.
if((mo->ddFlags & DDMF_DONTDRAW) || !mo->state || mo->state == states) return;
moSec = mo->bspLeaf->sector;
secFloor = moSec->SP_floorvisheight;
secCeil = moSec->SP_ceilvisheight;
floorAdjust = (fabs(moSec->SP_floorvisheight - moSec->SP_floorheight) < 8);
// Never make a vissprite when the mobj's origin sector is of zero height.
if(secFloor >= secCeil) return;
alpha = R_Alpha(mo);
// Never make a vissprite when the mobj is fully transparent.
if(alpha <= 0) return;
moPos[VX] = mo->origin[VX];
moPos[VY] = mo->origin[VY];
moPos[VZ] = mo->origin[VZ];
// The client may have a Smoother for this object.
if(isClient && mo->dPlayer && P_GetDDPlayerIdx(mo->dPlayer) != consolePlayer)
{
Smoother_Evaluate(clients[P_GetDDPlayerIdx(mo->dPlayer)].smoother, moPos);
}
// Decide which patch to use according to the sprite's angle and position
// relative to that of the viewer.
#ifdef RANGECHECK
if(mo->sprite < 0 || (unsigned) mo->sprite >= (unsigned) numSprites)
{
Con_Error("R_ProjectSprite: invalid sprite number %i\n", mo->sprite);
}