r_alias.c File Reference

#include "r_local.h"
#include "anorms.h"

Go to the source code of this file.

Classes
struct	aliasbatchedtransformdata_t

Macros
#define	NUMVERTEXNORMALS   162
#define	BBOX_TRIVIAL_ACCEPT   0
#define	BBOX_MUST_CLIP_XY   1
#define	BBOX_MUST_CLIP_Z   2
#define	BBOX_TRIVIAL_REJECT   8

Functions
void	R_AliasSetUpLerpData (dmdl_t *pmdl, float backlerp)
void	R_AliasSetUpTransform (void)
void	R_AliasTransformVector (vec3_t in, vec3_t out, float m[3][4])
void	R_AliasProjectAndClipTestFinalVert (finalvert_t *fv)
void	R_AliasTransformFinalVerts (int numpoints, finalvert_t *fv, dtrivertx_t *oldv, dtrivertx_t *newv)
void	R_AliasLerpFrames (dmdl_t *paliashdr, float backlerp)
unsigned long	R_AliasCheckFrameBBox (daliasframe_t *frame, float worldxf[3][4])
qboolean	R_AliasCheckBBox (void)
void	R_AliasPreparePoints (void)
static qboolean	R_AliasSetupSkin (void)
void	R_AliasSetupLighting (void)
void	R_AliasSetupFrames (dmdl_t *pmdl)
void	R_AliasDrawModel (void)

Variables
byte	iractive
int	r_amodels_drawn
affinetridesc_t	r_affinetridesc
vec3_t	r_plightvec
vec3_t	r_prlightvec
vec3_t	r_pglightvec
vec3_t	r_pblightvec
vec3_t	r_lerped [1024]
vec3_t	r_lerp_frontv
vec3_t	r_lerp_backv
vec3_t	r_lerp_move
int	r_ambientlight
int	r_aliasblendcolor
float	r_shadelight
daliasframe_t *	r_thisframe
daliasframe_t *	r_lastframe
dmdl_t *	s_pmdl
float	aliastransform [3][4]
float	aliasworldtransform [3][4]
float	aliasoldworldtransform [3][4]
static float	s_ziscale
static vec3_t	s_alias_forward
static vec3_t	s_alias_right
static vec3_t	s_alias_up
float	r_avertexnormals [NUMVERTEXNORMALS][3]
aliasbatchedtransformdata_t	aliasbatchedtransformdata

Macro Definition Documentation

BBOX_MUST_CLIP_XY

#define BBOX_MUST_CLIP_XY   1

Definition at line 85 of file r_alias.c.

BBOX_MUST_CLIP_Z

#define BBOX_MUST_CLIP_Z   2

Definition at line 86 of file r_alias.c.

BBOX_TRIVIAL_ACCEPT

#define BBOX_TRIVIAL_ACCEPT   0

Definition at line 84 of file r_alias.c.

BBOX_TRIVIAL_REJECT

#define BBOX_TRIVIAL_REJECT   8

Definition at line 87 of file r_alias.c.

NUMVERTEXNORMALS

#define NUMVERTEXNORMALS   162

Definition at line 62 of file r_alias.c.

Function Documentation

R_AliasCheckBBox()

qboolean R_AliasCheckBBox

(

void

)

Definition at line 182 of file r_alias.c.

{
    unsigned long ccodes[2] = { 0, 0 };
 
    ccodes[0] = R_AliasCheckFrameBBox(r_thisframe, aliasworldtransform);
 
    /*
    ** non-lerping model
    */
    if (currententity->backlerp == 0)
    {
        if (ccodes[0] == BBOX_TRIVIAL_ACCEPT)
            return BBOX_TRIVIAL_ACCEPT;
        else if (ccodes[0] & BBOX_TRIVIAL_REJECT)
            return BBOX_TRIVIAL_REJECT;
        else
            return (ccodes[0] & ~BBOX_TRIVIAL_REJECT);
    }
 
    ccodes[1] = R_AliasCheckFrameBBox(r_lastframe, aliasoldworldtransform);
 
    if ((ccodes[0] | ccodes[1]) == BBOX_TRIVIAL_ACCEPT)
        return BBOX_TRIVIAL_ACCEPT;
    else if ((ccodes[0] & ccodes[1]) & BBOX_TRIVIAL_REJECT)
        return BBOX_TRIVIAL_REJECT;
    else
        return (ccodes[0] | ccodes[1]) & ~BBOX_TRIVIAL_REJECT;
}

Referenced by R_AliasDrawModel().

R_AliasCheckFrameBBox()

unsigned long R_AliasCheckFrameBBox	(	daliasframe_t *	frame,
		float	worldxf[3][4]
	)

Definition at line 94 of file r_alias.c.

{
    unsigned long aggregate_and_clipcode = ~0U,
        aggregate_or_clipcode = 0;
    int           i;
    vec3_t        mins, maxs;
    vec3_t        transformed_min, transformed_max;
    qboolean      zclipped = false, zfullyclipped = true;
 
    /*
    ** get the exact frame bounding box
    */
    for (i = 0; i < 3; i++)
    {
        mins[i] = frame->translate[i];
        maxs[i] = mins[i] + frame->scale[i] * 255;
    }
 
    /*
    ** transform the min and max values into view space
    */
    R_AliasTransformVector(mins, transformed_min, aliastransform);
    R_AliasTransformVector(maxs, transformed_max, aliastransform);
 
    if (transformed_min[2] >= ALIAS_Z_CLIP_PLANE)
        zfullyclipped = false;
    if (transformed_max[2] >= ALIAS_Z_CLIP_PLANE)
        zfullyclipped = false;
 
    if (zfullyclipped)
    {
        return BBOX_TRIVIAL_REJECT;
    }
    if (zclipped)
    {
        return (BBOX_MUST_CLIP_XY | BBOX_MUST_CLIP_Z);
    }
 
    /*
    ** build a transformed bounding box from the given min and max
    */
    for (i = 0; i < 8; i++)
    {
        int      j;
        vec3_t   tmp, transformed;
        unsigned long clipcode = 0;
 
        if (i & 1)
            tmp[0] = mins[0];
        else
            tmp[0] = maxs[0];
 
        if (i & 2)
            tmp[1] = mins[1];
        else
            tmp[1] = maxs[1];
 
        if (i & 4)
            tmp[2] = mins[2];
        else
            tmp[2] = maxs[2];
 
        R_AliasTransformVector(tmp, transformed, worldxf);
 
        for (j = 0; j < 4; j++)
        {
            float dp = DotProduct(transformed, view_clipplanes[j].normal);
 
            if ((dp - view_clipplanes[j].dist) < 0.0F)
                clipcode |= 1 << j;
        }
 
        aggregate_and_clipcode &= clipcode;
        aggregate_or_clipcode |= clipcode;
    }
 
    if (aggregate_and_clipcode)
    {
        return BBOX_TRIVIAL_REJECT;
    }
    if (!aggregate_or_clipcode)
    {
        return BBOX_TRIVIAL_ACCEPT;
    }
 
    return BBOX_MUST_CLIP_XY;
}

Referenced by R_AliasCheckBBox().

R_AliasDrawModel()

void R_AliasDrawModel

(

void

)

Definition at line 1068 of file r_alias.c.

{
    extern void(*d_pdrawspans)(void *);
    extern void R_PolysetDrawSpans8_Opaque_Coloured(void *);
    extern void R_PolysetDrawSpans8_33(void *);
    extern void R_PolysetDrawSpans8_66(void *);
    extern void R_PolysetDrawSpansConstant8_33(void *);
    extern void R_PolysetDrawSpansConstant8_66(void *);
 
    s_pmdl = (dmdl_t *)currentmodel->extradata;
 
    if (r_lerpmodels->value == 0)
        currententity->backlerp = 0;
 
    if (currententity->flags & RF_WEAPONMODEL)
    {
        if (r_lefthand->value == 1.0F)
            aliasxscale = -aliasxscale;
        else if (r_lefthand->value == 2.0F)
            return;
    }
 
    /*
    ** we have to set our frame pointers and transformations before
    ** doing any real work
    */
    R_AliasSetupFrames(s_pmdl);
    R_AliasSetUpTransform();
 
    // see if the bounding box lets us trivially reject, also sets
    // trivial accept status
    if (R_AliasCheckBBox() == BBOX_TRIVIAL_REJECT)
    {
        if ((currententity->flags & RF_WEAPONMODEL) && (r_lefthand->value == 1.0F))
        {
            aliasxscale = -aliasxscale;
        }
        return;
    }
 
    // set up the skin and verify it exists
    if (!R_AliasSetupSkin())
    {
        ri.Con_Printf(PRINT_ALL, "R_AliasDrawModel %s: NULL skin found\n",
            currentmodel->name);
        return;
    }
 
    r_amodels_drawn++;
    R_AliasSetupLighting();
 
    /*
    ** select the proper span routine based on translucency
    */
    // PMM - added double damage shell
    // PMM - reordered to handle blending
    if (currententity->flags & (RF_SHELL_RED | RF_SHELL_GREEN | RF_SHELL_BLUE | RF_SHELL_DOUBLE | RF_SHELL_HALF_DAM))
    {
        int     color;
 
        // PMM - added double
        color = currententity->flags & (RF_SHELL_RED | RF_SHELL_GREEN | RF_SHELL_BLUE | RF_SHELL_DOUBLE | RF_SHELL_HALF_DAM);
        // PMM - reordered, new shells after old shells (so they get overriden)
 
        if (color == RF_SHELL_RED)
            r_aliasblendcolor = SHELL_RED_COLOR;
        else if (color == RF_SHELL_GREEN)
            r_aliasblendcolor = SHELL_GREEN_COLOR;
        else if (color == RF_SHELL_BLUE)
            r_aliasblendcolor = SHELL_BLUE_COLOR;
        else if (color == (RF_SHELL_RED | RF_SHELL_GREEN))
            r_aliasblendcolor = SHELL_RG_COLOR;
        else if (color == (RF_SHELL_RED | RF_SHELL_BLUE))
            r_aliasblendcolor = SHELL_RB_COLOR;
        else if (color == (RF_SHELL_BLUE | RF_SHELL_GREEN))
            r_aliasblendcolor = SHELL_BG_COLOR;
        // PMM - added this .. it's yellowish
        else if (color == (RF_SHELL_DOUBLE))
            r_aliasblendcolor = SHELL_DOUBLE_COLOR;
        else if (color == (RF_SHELL_HALF_DAM))
            r_aliasblendcolor = SHELL_HALF_DAM_COLOR;
        // pmm
        else
            r_aliasblendcolor = SHELL_WHITE_COLOR;
        /*      if ( color & RF_SHELL_RED )
                {
                if ( ( color & RF_SHELL_BLUE) && ( color & RF_SHELL_GREEN) )
                r_aliasblendcolor = SHELL_WHITE_COLOR;
                else if ( color & (RF_SHELL_BLUE | RF_SHELL_DOUBLE))
                r_aliasblendcolor = SHELL_RB_COLOR;
                else
                r_aliasblendcolor = SHELL_RED_COLOR;
                }
                else if ( color & RF_SHELL_BLUE)
                {
                if ( color & RF_SHELL_DOUBLE )
                r_aliasblendcolor = SHELL_CYAN_COLOR;
                else
                r_aliasblendcolor = SHELL_BLUE_COLOR;
                }
                else if ( color & (RF_SHELL_DOUBLE) )
                r_aliasblendcolor = SHELL_DOUBLE_COLOR;
                else if ( color & (RF_SHELL_HALF_DAM) )
                r_aliasblendcolor = SHELL_HALF_DAM_COLOR;
                else if ( color & RF_SHELL_GREEN )
                r_aliasblendcolor = SHELL_GREEN_COLOR;
                else
                r_aliasblendcolor = SHELL_WHITE_COLOR;
                */
 
        if (currententity->alpha > 0.33)
            d_pdrawspans = R_PolysetDrawSpansConstant8_66;
        else
            d_pdrawspans = R_PolysetDrawSpansConstant8_33;
    }
    else if (currententity->flags & RF_TRANSLUCENT)
    {
        if (currententity->alpha > 0.66)
            d_pdrawspans = R_PolysetDrawSpans8_Opaque_Coloured;
        else if (currententity->alpha > 0.33)
            d_pdrawspans = R_PolysetDrawSpans8_66;
        else
            d_pdrawspans = R_PolysetDrawSpans8_33;
    }
    else
    {
        d_pdrawspans = R_PolysetDrawSpans8_Opaque_Coloured;
    }
 
    /*
    ** compute this_frame and old_frame addresses
    */
    R_AliasSetUpLerpData(s_pmdl, currententity->backlerp);
 
    if (currententity->flags & RF_DEPTHHACK)
        s_ziscale = (float)0x8000 * (float)0x10000 * 3.0;
    else
        s_ziscale = (float)0x8000 * (float)0x10000;
 
    R_AliasPreparePoints();
 
    if ((currententity->flags & RF_WEAPONMODEL) && (r_lefthand->value == 1.0F))
    {
        aliasxscale = -aliasxscale;
    }
}

Referenced by R_DrawEntitiesOnList().

R_AliasLerpFrames()

void R_AliasLerpFrames	(	dmdl_t *	paliashdr,
		float	backlerp
	)

R_AliasPreparePoints()

void R_AliasPreparePoints

(

void

)

Definition at line 242 of file r_alias.c.

{
    int         i;
    dstvert_t   *pstverts;
    dtriangle_t *ptri;
    finalvert_t *pfv[3];
    finalvert_t finalverts[MAXALIASVERTS +
        ((CACHE_SIZE - 1) / sizeof(finalvert_t)) + 3];
    finalvert_t *pfinalverts;
 
    //PGM
    iractive = (r_newrefdef.rdflags & RDF_IRGOGGLES && currententity->flags & RF_IR_VISIBLE);
    //  iractive = 0;
    //  if(r_newrefdef.rdflags & RDF_IRGOGGLES && currententity->flags & RF_IR_VISIBLE)
    //      iractive = 1;
    //PGM
 
    // put work vertexes on stack, cache aligned
    pfinalverts = (finalvert_t *)
        (((intptr_t)&finalverts[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
 
    aliasbatchedtransformdata.num_points = s_pmdl->num_xyz;
    aliasbatchedtransformdata.last_verts = r_lastframe->verts;
    aliasbatchedtransformdata.this_verts = r_thisframe->verts;
    aliasbatchedtransformdata.dest_verts = pfinalverts;
 
    R_AliasTransformFinalVerts(aliasbatchedtransformdata.num_points,
        aliasbatchedtransformdata.dest_verts,
        aliasbatchedtransformdata.last_verts,
        aliasbatchedtransformdata.this_verts);
 
    // clip and draw all triangles
    //
    pstverts = (dstvert_t *)((byte *)s_pmdl + s_pmdl->ofs_st);
    ptri = (dtriangle_t *)((byte *)s_pmdl + s_pmdl->ofs_tris);
 
    if ((currententity->flags & RF_WEAPONMODEL) && (r_lefthand->value == 1.0F))
    {
        for (i = 0; i < s_pmdl->num_tris; i++, ptri++)
        {
            pfv[0] = &pfinalverts[ptri->index_xyz[0]];
            pfv[1] = &pfinalverts[ptri->index_xyz[1]];
            pfv[2] = &pfinalverts[ptri->index_xyz[2]];
 
            if (pfv[0]->flags & pfv[1]->flags & pfv[2]->flags)
                continue;       // completely clipped
 
            // insert s/t coordinates
            pfv[0]->s = pstverts[ptri->index_st[0]].s << 16;
            pfv[0]->t = pstverts[ptri->index_st[0]].t << 16;
 
            pfv[1]->s = pstverts[ptri->index_st[1]].s << 16;
            pfv[1]->t = pstverts[ptri->index_st[1]].t << 16;
 
            pfv[2]->s = pstverts[ptri->index_st[2]].s << 16;
            pfv[2]->t = pstverts[ptri->index_st[2]].t << 16;
 
            if (!(pfv[0]->flags | pfv[1]->flags | pfv[2]->flags))
            {   // totally unclipped
                aliastriangleparms.a = pfv[2];
                aliastriangleparms.b = pfv[1];
                aliastriangleparms.c = pfv[0];
 
                R_DrawTriangle();
            }
            else
            {
                if (coloredlights)
                    R_AliasClipTriangleRGB(pfv[2], pfv[1], pfv[0]);
                else
                    R_AliasClipTriangle(pfv[2], pfv[1], pfv[0]);
            }
        }
    }
    else
    {
        for (i = 0; i < s_pmdl->num_tris; i++, ptri++)
        {
            pfv[0] = &pfinalverts[ptri->index_xyz[0]];
            pfv[1] = &pfinalverts[ptri->index_xyz[1]];
            pfv[2] = &pfinalverts[ptri->index_xyz[2]];
 
            if (pfv[0]->flags & pfv[1]->flags & pfv[2]->flags)
                continue;       // completely clipped
 
            // insert s/t coordinates
            pfv[0]->s = pstverts[ptri->index_st[0]].s << 16;
            pfv[0]->t = pstverts[ptri->index_st[0]].t << 16;
 
            pfv[1]->s = pstverts[ptri->index_st[1]].s << 16;
            pfv[1]->t = pstverts[ptri->index_st[1]].t << 16;
 
            pfv[2]->s = pstverts[ptri->index_st[2]].s << 16;
            pfv[2]->t = pstverts[ptri->index_st[2]].t << 16;
 
            if (!(pfv[0]->flags | pfv[1]->flags | pfv[2]->flags))
            {   // totally unclipped
                aliastriangleparms.a = pfv[0];
                aliastriangleparms.b = pfv[1];
                aliastriangleparms.c = pfv[2];
 
                R_DrawTriangle();
            }
            else
            {   // partially clipped
                if (coloredlights)
                    R_AliasClipTriangleRGB(pfv[0], pfv[1], pfv[2]);
                else
                    R_AliasClipTriangle(pfv[0], pfv[1], pfv[2]);
            }
        }
    }
}

Referenced by R_AliasDrawModel().

R_AliasProjectAndClipTestFinalVert()

void R_AliasProjectAndClipTestFinalVert

(

finalvert_t *

fv

)

Definition at line 813 of file r_alias.c.

{
    float   zi;
    float   x, y, z;
 
    // project points
    x = fv->xyz[0];
    y = fv->xyz[1];
    z = fv->xyz[2];
    zi = 1.0 / z;
 
    fv->zi = zi * s_ziscale;
 
    fv->u = (x * aliasxscale * zi) + aliasxcenter;
    fv->v = (y * aliasyscale * zi) + aliasycenter;
 
    if (fv->u < r_refdef.aliasvrect.x)
        fv->flags |= ALIAS_LEFT_CLIP;
    if (fv->v < r_refdef.aliasvrect.y)
        fv->flags |= ALIAS_TOP_CLIP;
    if (fv->u > r_refdef.aliasvrectright)
        fv->flags |= ALIAS_RIGHT_CLIP;
    if (fv->v > r_refdef.aliasvrectbottom)
        fv->flags |= ALIAS_BOTTOM_CLIP;
}

Referenced by R_Alias_clip_z(), and R_AliasTransformFinalVerts().

R_AliasSetupFrames()

void R_AliasSetupFrames

(

dmdl_t *

pmdl

)

Definition at line 994 of file r_alias.c.

{
    int thisframe = currententity->frame;
    int lastframe = currententity->oldframe;
 
    if ((thisframe >= pmdl->num_frames) || (thisframe < 0))
    {
        ri.Con_Printf(PRINT_ALL, "R_AliasSetupFrames %s: no such thisframe %d\n",
            currentmodel->name, thisframe);
        thisframe = 0;
    }
    if ((lastframe >= pmdl->num_frames) || (lastframe < 0))
    {
        ri.Con_Printf(PRINT_ALL, "R_AliasSetupFrames %s: no such lastframe %d\n",
            currentmodel->name, lastframe);
        lastframe = 0;
    }
 
    r_thisframe = (daliasframe_t *)((byte *)pmdl + pmdl->ofs_frames
        + thisframe * pmdl->framesize);
 
    r_lastframe = (daliasframe_t *)((byte *)pmdl + pmdl->ofs_frames
        + lastframe * pmdl->framesize);
}

Referenced by R_AliasDrawModel().

R_AliasSetUpLerpData()

void R_AliasSetUpLerpData	(	dmdl_t *	pmdl,
		float	backlerp
	)

Definition at line 1024 of file r_alias.c.

{
    float   frontlerp;
    vec3_t  translation, vectors[3];
    int     i;
 
    frontlerp = 1.0F - backlerp;
 
    /*
    ** convert entity's angles into discrete vectors for R, U, and F
    */
    AngleVectors(currententity->angles, vectors[0], vectors[1], vectors[2]);
 
    /*
    ** translation is the vector from last position to this position
    */
    VectorSubtract(currententity->oldorigin, currententity->origin, translation);
 
    /*
    ** move should be the delta back to the previous frame * backlerp
    */
    r_lerp_move[0] = DotProduct(translation, vectors[0]);   // forward
    r_lerp_move[1] = -DotProduct(translation, vectors[1]);  // left
    r_lerp_move[2] = DotProduct(translation, vectors[2]);   // up
 
    VectorAdd(r_lerp_move, r_lastframe->translate, r_lerp_move);
 
    for (i = 0; i < 3; i++)
    {
        r_lerp_move[i] = backlerp*r_lerp_move[i] + frontlerp * r_thisframe->translate[i];
    }
 
    for (i = 0; i < 3; i++)
    {
        r_lerp_frontv[i] = frontlerp * r_thisframe->scale[i];
        r_lerp_backv[i] = backlerp  * r_lastframe->scale[i];
    }
}

Referenced by R_AliasDrawModel().

R_AliasSetupLighting()

void R_AliasSetupLighting

(

void

)

Definition at line 884 of file r_alias.c.

{
    alight_t        lighting;
 
    /*
    float           lightvec[3] = {-1, 0, 0};
    float           rlightvec[3] = {-1, 0, 0};
    float           glightvec[3] = {-1, 0, 0};
    float           blightvec[3] = {-1, 0, 0};
    */
 
    float           lightvec[3] = { 0.2, -0.8, 0.6 };
    float           rlightvec[3] = { -1, 0, 0 };
    float           glightvec[3] = { 0, -1, 0 };
    float           blightvec[3] = { 0, 0, -1 };
    //qb: use shadelight.   vec3_t          light;
    int             i, j;
 
    // all components of light should be identical in software
    if (currententity->flags & RF_FULLBRIGHT)
    {
        for (i = 0; i < 3; i++)
            shadelight[i] = 1.0;
    }
    else
    {
            R_LightPointColor(currententity->origin, shadelight);
    }
 
    // save off light value for server to look at (BIG HACK!)
    if (currententity->flags & RF_WEAPONMODEL)
        r_lightlevel->value = 150.0 * shadelight[0];
 
 
    if (currententity->flags & RF_MINLIGHT)
    {
        for (i = 0; i < 3; i++)
        if (shadelight[i] < 0.1)
            shadelight[i] = 0.1;
    }
 
    if (currententity->flags & RF_GLOW)
    {   // bonus items will pulse with time
        float   scale;
        float   min;
 
        scale = 0.1 * sin(r_newrefdef.time * 7);
        for (i = 0; i < 3; i++)
        {
            min = shadelight[i] * 0.8;
            shadelight[i] += scale;
            if (shadelight[i] < min)
                shadelight[i] = min;
        }
    }
 
    j = (shadelight[0] + shadelight[1] + shadelight[2])*0.3333 * 255;
 
    lighting.ambientlight = j;
    lighting.shadelight = j;
 
 
    lighting.plightvec = lightvec;
 
    lighting.prlightvec = rlightvec;
    lighting.pglightvec = glightvec;
    lighting.pblightvec = blightvec;
 
    // clamp lighting so it doesn't overbright as much
    if (lighting.ambientlight > 128)
        lighting.ambientlight = 128;
    if (lighting.ambientlight + lighting.shadelight > 192)
        lighting.shadelight = 192 - lighting.ambientlight;
 
    // guarantee that no vertex will ever be lit below LIGHT_MIN, so we don't have
    // to clamp off the bottom
    r_ambientlight = lighting.ambientlight;
 
    if (r_ambientlight < LIGHT_MIN)
        r_ambientlight = LIGHT_MIN;
 
    r_ambientlight = (255 - r_ambientlight) << VID_CBITS;
 
    if (r_ambientlight < LIGHT_MIN)
        r_ambientlight = LIGHT_MIN;
 
    r_shadelight = lighting.shadelight;
 
    if (r_shadelight < 0)
        r_shadelight = 0;
 
    r_shadelight *= VID_GRADES;
 
    // rotate the lighting vector into the model's frame of reference
    r_plightvec[0] = DotProduct(lighting.plightvec, s_alias_forward);
    r_plightvec[1] = -DotProduct(lighting.plightvec, s_alias_right);
    r_plightvec[2] = DotProduct(lighting.plightvec, s_alias_up);
 
    r_prlightvec[0] = DotProduct(lighting.prlightvec, s_alias_forward);
    r_pglightvec[1] = -DotProduct(lighting.pglightvec, s_alias_right);
    r_pblightvec[2] = DotProduct(lighting.pblightvec, s_alias_up);
}

Referenced by R_AliasDrawModel().

R_AliasSetupSkin()

static qboolean R_AliasSetupSkin ( void  )

static

Definition at line 844 of file r_alias.c.

{
    int             skinnum;
    image_t         *pskindesc;
 
    if (currententity->skin)
        pskindesc = currententity->skin;
    else
    {
        skinnum = currententity->skinnum;
        if ((skinnum >= s_pmdl->num_skins) || (skinnum < 0))
        {
            ri.Con_Printf(PRINT_ALL, "R_AliasSetupSkin %s: no such skin # %d\n",
                currentmodel->name, skinnum);
            skinnum = 0;
        }
 
        pskindesc = currentmodel->skins[skinnum];
    }
 
    if (!pskindesc)
        return false;
 
    r_affinetridesc.pskin = pskindesc->pixels[0];
    r_affinetridesc.skinwidth = pskindesc->width;
    r_affinetridesc.skinheight = pskindesc->height;
 
    R_PolysetUpdateTables();        // FIXME: precalc edge lookups
 
    return true;
}

Referenced by R_AliasDrawModel().

R_AliasSetUpTransform()

void R_AliasSetUpTransform

(

void

)

Definition at line 362 of file r_alias.c.

{
    int             i;
    static float    viewmatrix[3][4];
    vec3_t          angles;
 
    // TODO: should really be stored with the entity instead of being reconstructed
    // TODO: should use a look-up table
    // TODO: could cache lazily, stored in the entity
    // 
    angles[ROLL] = currententity->angles[ROLL];
    angles[PITCH] = currententity->angles[PITCH];
    angles[YAW] = currententity->angles[YAW];
    AngleVectors(angles, s_alias_forward, s_alias_right, s_alias_up);
 
    // TODO: can do this with simple matrix rearrangement
 
    memset(aliasworldtransform, 0, sizeof(aliasworldtransform));
    memset(aliasoldworldtransform, 0, sizeof(aliasworldtransform));
 
    for (i = 0; i < 3; i++)
    {
        aliasoldworldtransform[i][0] = aliasworldtransform[i][0] = s_alias_forward[i];
        aliasoldworldtransform[i][0] = aliasworldtransform[i][1] = -s_alias_right[i];
        aliasoldworldtransform[i][0] = aliasworldtransform[i][2] = s_alias_up[i];
    }
 
    aliasworldtransform[0][3] = currententity->origin[0] - r_origin[0];
    aliasworldtransform[1][3] = currententity->origin[1] - r_origin[1];
    aliasworldtransform[2][3] = currententity->origin[2] - r_origin[2];
 
    aliasoldworldtransform[0][3] = currententity->oldorigin[0] - r_origin[0];
    aliasoldworldtransform[1][3] = currententity->oldorigin[1] - r_origin[1];
    aliasoldworldtransform[2][3] = currententity->oldorigin[2] - r_origin[2];
 
    // FIXME: can do more efficiently than full concatenation
    //  memcpy( rotationmatrix, t2matrix, sizeof( rotationmatrix ) );
 
    //  R_ConcatTransforms (t2matrix, tmatrix, rotationmatrix);
 
    // TODO: should be global, set when vright, etc., set
    VectorCopy(vright, viewmatrix[0]);
    VectorCopy(vup, viewmatrix[1]);
    VectorInverse(viewmatrix[1]);
    VectorCopy(vpn, viewmatrix[2]);
 
    viewmatrix[0][3] = 0;
    viewmatrix[1][3] = 0;
    viewmatrix[2][3] = 0;
 
    //  memcpy( aliasworldtransform, rotationmatrix, sizeof( aliastransform ) );
 
    R_ConcatTransforms(viewmatrix, aliasworldtransform, aliastransform);
 
    aliasworldtransform[0][3] = currententity->origin[0];
    aliasworldtransform[1][3] = currententity->origin[1];
    aliasworldtransform[2][3] = currententity->origin[2];
 
    aliasoldworldtransform[0][3] = currententity->oldorigin[0];
    aliasoldworldtransform[1][3] = currententity->oldorigin[1];
    aliasoldworldtransform[2][3] = currententity->oldorigin[2];
}

Referenced by R_AliasDrawModel().

R_AliasTransformFinalVerts()

void R_AliasTransformFinalVerts	(	int	numpoints,
		finalvert_t *	fv,
		dtrivertx_t *	oldv,
		dtrivertx_t *	newv
	)

Definition at line 749 of file r_alias.c.

{
    int i;
 
    for (i = 0; i < numpoints; i++, fv++, oldv++, newv++)
    {
        int     temp;
        float   lightcos, *plightnormal;
        vec3_t  lerped_vert;
 
        lerped_vert[0] = r_lerp_move[0] + oldv->v[0] * r_lerp_backv[0] + newv->v[0] * r_lerp_frontv[0];
        lerped_vert[1] = r_lerp_move[1] + oldv->v[1] * r_lerp_backv[1] + newv->v[1] * r_lerp_frontv[1];
        lerped_vert[2] = r_lerp_move[2] + oldv->v[2] * r_lerp_backv[2] + newv->v[2] * r_lerp_frontv[2];
 
        plightnormal = r_avertexnormals[newv->lightnormalindex];
 
        // PMM - added double damage shell
        if (currententity->flags & (RF_SHELL_RED | RF_SHELL_GREEN | RF_SHELL_BLUE | RF_SHELL_DOUBLE | RF_SHELL_HALF_DAM))
        {
            lerped_vert[0] += plightnormal[0] * POWERSUIT_SCALE;
            lerped_vert[1] += plightnormal[1] * POWERSUIT_SCALE;
            lerped_vert[2] += plightnormal[2] * POWERSUIT_SCALE;
        }
 
        fv->xyz[0] = DotProduct(lerped_vert, aliastransform[0]) + aliastransform[0][3];
        fv->xyz[1] = DotProduct(lerped_vert, aliastransform[1]) + aliastransform[1][3];
        fv->xyz[2] = DotProduct(lerped_vert, aliastransform[2]) + aliastransform[2][3];
 
        fv->flags = 0;
 
        // lighting
        lightcos = DotProduct(plightnormal, r_plightvec);
        temp = r_ambientlight;
 
        if (lightcos < 0)
        {
            temp += (int)(r_shadelight * lightcos);
 
            // clamp; because we limited the minimum ambient and shading light, we
            // don't have to clamp low light, just bright
            if (temp < 0)
                temp = 0;
        }
 
        fv->l = temp;
 
        if (fv->xyz[2] < ALIAS_Z_CLIP_PLANE)
        {
            fv->flags |= ALIAS_Z_CLIP;
        }
        else
        {
            R_AliasProjectAndClipTestFinalVert(fv);
        }
    }
}

Referenced by R_AliasPreparePoints().

R_AliasTransformVector()

void R_AliasTransformVector	(	vec3_t	in,
		vec3_t	out,
		float	m[3][4]
	)

Definition at line 217 of file r_alias.c.

{
    out[0] = DotProduct(in, xf[0]) + xf[0][3];
    out[1] = DotProduct(in, xf[1]) + xf[1][3];
    out[2] = DotProduct(in, xf[2]) + xf[2][3];
}

Referenced by R_AliasCheckFrameBBox().

Variable Documentation

aliasbatchedtransformdata

aliasbatchedtransformdata_t aliasbatchedtransformdata

Definition at line 240 of file r_alias.c.

Referenced by R_AliasPreparePoints().

aliasoldworldtransform

float aliasoldworldtransform[3][4]

Definition at line 56 of file r_alias.c.

Referenced by R_AliasCheckBBox(), and R_AliasSetUpTransform().

aliastransform

float aliastransform[3][4]

Definition at line 54 of file r_alias.c.

Referenced by R_AliasCheckFrameBBox(), R_AliasSetUpTransform(), and R_AliasTransformFinalVerts().

aliasworldtransform

float aliasworldtransform[3][4]

Definition at line 55 of file r_alias.c.

Referenced by R_AliasCheckBBox(), and R_AliasSetUpTransform().

iractive

byte iractive

Definition at line 148 of file r_polyse.c.

Referenced by R_AliasPreparePoints().

r_affinetridesc

affinetridesc_t r_affinetridesc

Definition at line 34 of file r_alias.c.

Referenced by R_AliasSetupSkin(), R_PolysetDrawSpans8_33(), R_PolysetDrawSpans8_66(), R_PolysetDrawSpans8_Opaque_Coloured(), R_PolysetDrawThreshSpans8(), R_PolysetScanLeftEdge_C(), R_PolysetUpdateTables(), and R_RasterizeAliasPolySmooth().

r_aliasblendcolor

int r_aliasblendcolor

Definition at line 47 of file r_alias.c.

Referenced by R_AliasDrawModel(), R_PolysetDrawSpansConstant8_33(), and R_PolysetDrawSpansConstant8_66().

r_ambientlight

int r_ambientlight

Definition at line 46 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasTransformFinalVerts().

r_amodels_drawn

int r_amodels_drawn

Definition at line 32 of file r_alias.c.

Referenced by R_AliasDrawModel(), R_PrintAliasStats(), and R_SetupFrame().

r_avertexnormals

float r_avertexnormals[NUMVERTEXNORMALS][3]

Initial value:

= {
}

Definition at line 64 of file r_alias.c.

Referenced by R_AliasTransformFinalVerts().

r_lastframe

daliasframe_t * r_lastframe

Definition at line 51 of file r_alias.c.

Referenced by R_AliasCheckBBox(), R_AliasPreparePoints(), R_AliasSetupFrames(), and R_AliasSetUpLerpData().

r_lerp_backv

vec3_t r_lerp_backv

Definition at line 44 of file r_alias.c.

Referenced by R_AliasSetUpLerpData(), and R_AliasTransformFinalVerts().

r_lerp_frontv

vec3_t r_lerp_frontv

Definition at line 44 of file r_alias.c.

Referenced by R_AliasSetUpLerpData(), and R_AliasTransformFinalVerts().

r_lerp_move

vec3_t r_lerp_move

Definition at line 44 of file r_alias.c.

Referenced by R_AliasSetUpLerpData(), and R_AliasTransformFinalVerts().

r_lerped

vec3_t r_lerped[1024]

Definition at line 43 of file r_alias.c.

r_pblightvec

vec3_t r_pblightvec

Definition at line 41 of file r_alias.c.

Referenced by R_AliasSetupLighting().

r_pglightvec

vec3_t r_pglightvec

Definition at line 40 of file r_alias.c.

Referenced by R_AliasSetupLighting().

r_plightvec

vec3_t r_plightvec

Definition at line 36 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasTransformFinalVerts().

r_prlightvec

vec3_t r_prlightvec

Definition at line 39 of file r_alias.c.

Referenced by R_AliasSetupLighting().

r_shadelight

float r_shadelight

Definition at line 48 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasTransformFinalVerts().

r_thisframe

daliasframe_t* r_thisframe

Definition at line 51 of file r_alias.c.

Referenced by R_AliasCheckBBox(), R_AliasPreparePoints(), R_AliasSetupFrames(), and R_AliasSetUpLerpData().

s_alias_forward

vec3_t s_alias_forward

static

Definition at line 59 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasSetUpTransform().

s_alias_right

vec3_t s_alias_right

static

Definition at line 59 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasSetUpTransform().

s_alias_up

vec3_t s_alias_up

static

Definition at line 59 of file r_alias.c.

Referenced by R_AliasSetupLighting(), and R_AliasSetUpTransform().

s_pmdl

dmdl_t* s_pmdl

Definition at line 52 of file r_alias.c.

Referenced by R_AliasDrawModel(), R_AliasPreparePoints(), and R_AliasSetupSkin().

s_ziscale

float s_ziscale

static

Definition at line 58 of file r_alias.c.

Referenced by R_AliasDrawModel(), and R_AliasProjectAndClipTestFinalVert().