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tr_shade.cpp
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/*
===========================================================================
Copyright (C) 1999 - 2005, Id Software, Inc.
Copyright (C) 2000 - 2013, Raven Software, Inc.
Copyright (C) 2001 - 2013, Activision, Inc.
Copyright (C) 2005 - 2015, ioquake3 contributors
Copyright (C) 2013 - 2015, OpenJK contributors
This file is part of the OpenJK source code.
OpenJK is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
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, see <http://www.gnu.org/licenses/>.
===========================================================================
*/
// tr_shade.c
#include "../server/exe_headers.h"
#include "tr_local.h"
/*
THIS ENTIRE FILE IS BACK END
This file deals with applying shaders to surface data in the tess struct.
*/
shaderCommands_t tess;
static qboolean setArraysOnce;
color4ub_t styleColors[MAX_LIGHT_STYLES];
bool styleUpdated[MAX_LIGHT_STYLES];
extern bool g_bRenderGlowingObjects;
/*
================
R_ArrayElementDiscrete
This is just for OpenGL conformance testing, it should never be the fastest
================
*/
static void APIENTRY R_ArrayElementDiscrete( GLint index ) {
qglColor4ubv( tess.svars.colors[ index ] );
if ( glState.currenttmu ) {
qglMultiTexCoord2fARB( 0, tess.svars.texcoords[ 0 ][ index ][0], tess.svars.texcoords[ 0 ][ index ][1] );
qglMultiTexCoord2fARB( 1, tess.svars.texcoords[ 1 ][ index ][0], tess.svars.texcoords[ 1 ][ index ][1] );
} else {
qglTexCoord2fv( tess.svars.texcoords[ 0 ][ index ] );
}
qglVertex3fv( tess.xyz[ index ] );
}
/*
===================
R_DrawStripElements
===================
*/
static int c_vertexes; // for seeing how long our average strips are
static int c_begins;
static void R_DrawStripElements( int numIndexes, const glIndex_t *indexes, void ( APIENTRY *element )(GLint) ) {
int i;
glIndex_t last[3];
qboolean even;
qglBegin( GL_TRIANGLE_STRIP );
c_begins++;
if ( numIndexes <= 0 ) {
return;
}
// prime the strip
element( indexes[0] );
element( indexes[1] );
element( indexes[2] );
c_vertexes += 3;
last[0] = indexes[0];
last[1] = indexes[1];
last[2] = indexes[2];
even = qfalse;
for ( i = 3; i < numIndexes; i += 3 )
{
// odd numbered triangle in potential strip
if ( !even )
{
// check previous triangle to see if we're continuing a strip
if ( ( indexes[i+0] == last[2] ) && ( indexes[i+1] == last[1] ) )
{
element( indexes[i+2] );
c_vertexes++;
assert( (int)indexes[i+2] < tess.numVertexes );
even = qtrue;
}
// otherwise we're done with this strip so finish it and start
// a new one
else
{
qglEnd();
qglBegin( GL_TRIANGLE_STRIP );
c_begins++;
element( indexes[i+0] );
element( indexes[i+1] );
element( indexes[i+2] );
c_vertexes += 3;
even = qfalse;
}
}
else
{
// check previous triangle to see if we're continuing a strip
if ( ( last[2] == indexes[i+1] ) && ( last[0] == indexes[i+0] ) )
{
element( indexes[i+2] );
c_vertexes++;
even = qfalse;
}
// otherwise we're done with this strip so finish it and start
// a new one
else
{
qglEnd();
qglBegin( GL_TRIANGLE_STRIP );
c_begins++;
element( indexes[i+0] );
element( indexes[i+1] );
element( indexes[i+2] );
c_vertexes += 3;
even = qfalse;
}
}
// cache the last three vertices
last[0] = indexes[i+0];
last[1] = indexes[i+1];
last[2] = indexes[i+2];
}
qglEnd();
}
/*
==================
R_DrawElements
Optionally performs our own glDrawElements that looks for strip conditions
instead of using the single glDrawElements call that may be inefficient
without compiled vertex arrays.
==================
*/
static void R_DrawElements( int numIndexes, const glIndex_t *indexes ) {
int primitives;
primitives = r_primitives->integer;
// default is to use triangles if compiled vertex arrays are present
if ( primitives == 0 ) {
if ( qglLockArraysEXT ) {
primitives = 2;
} else {
primitives = 1;
}
}
if ( primitives == 2 ) {
qglDrawElements( GL_TRIANGLES,
numIndexes,
GL_INDEX_TYPE,
indexes );
return;
}
if ( primitives == 1 ) {
R_DrawStripElements( numIndexes, indexes, qglArrayElement );
return;
}
if ( primitives == 3 ) {
R_DrawStripElements( numIndexes, indexes, R_ArrayElementDiscrete );
return;
}
// anything else will cause no drawing
}
/*
=============================================================
SURFACE SHADERS
=============================================================
*/
/*
=================
R_BindAnimatedImage
=================
*/
void R_BindAnimatedImage( const textureBundle_t *bundle) {
int index;
if ( bundle->isVideoMap ) {
ri.CIN_RunCinematic(bundle->videoMapHandle);
ri.CIN_UploadCinematic(bundle->videoMapHandle);
return;
}
if ((r_fullbright->integer || tr.refdef.doLAGoggles || (tr.refdef.rdflags & RDF_doFullbright) ) && bundle->isLightmap)
{
GL_Bind( tr.whiteImage );
return;
}
if ( bundle->numImageAnimations <= 1 ) {
GL_Bind( bundle->image );
return;
}
if (backEnd.currentEntity->e.renderfx & RF_SETANIMINDEX )
{
index = backEnd.currentEntity->e.skinNum;
}
else
{
// it is necessary to do this messy calc to make sure animations line up
// exactly with waveforms of the same frequency
index = Q_ftol( backEnd.refdef.floatTime * bundle->imageAnimationSpeed * FUNCTABLE_SIZE );
index >>= FUNCTABLE_SIZE2;
if ( index < 0 ) {
index = 0; // may happen with shader time offsets
}
}
if ( bundle->oneShotAnimMap )
{
if ( index >= bundle->numImageAnimations )
{
// stick on last frame
index = bundle->numImageAnimations - 1;
}
}
else
{
// loop
index %= bundle->numImageAnimations;
}
GL_Bind( *((image_t**)bundle->image + index) );
}
/*
================
DrawTris
Draws triangle outlines for debugging
================
*/
static void DrawTris (shaderCommands_t *input)
{
GL_Bind( tr.whiteImage );
if ( r_showtriscolor->integer )
{
int i = r_showtriscolor->integer;
if (i == 42) {
i = Q_irand(0,8);
}
switch (i)
{
case 1:
qglColor3f( 1.0, 0.0, 0.0); //red
break;
case 2:
qglColor3f( 0.0, 1.0, 0.0); //green
break;
case 3:
qglColor3f( 1.0, 1.0, 0.0); //yellow
break;
case 4:
qglColor3f( 0.0, 0.0, 1.0); //blue
break;
case 5:
qglColor3f( 0.0, 1.0, 1.0); //cyan
break;
case 6:
qglColor3f( 1.0, 0.0, 1.0); //magenta
break;
case 7:
qglColor3f( 0.8f, 0.8f, 0.8f); //white/grey
break;
case 8:
qglColor3f( 0.0, 0.0, 0.0); //black
break;
}
}
else
{
qglColor3f( 1.0, 1.0, 1.0); //white
}
if ( r_showtris->integer == 2 )
{
// tries to do non-xray style showtris
GL_State( GLS_POLYMODE_LINE );
qglEnable( GL_POLYGON_OFFSET_LINE );
qglPolygonOffset( -1, -2 );
qglDisableClientState( GL_COLOR_ARRAY );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
qglVertexPointer( 3, GL_FLOAT, 16, input->xyz ); // padded for SIMD
if ( qglLockArraysEXT )
{
qglLockArraysEXT( 0, input->numVertexes );
GLimp_LogComment( "glLockArraysEXT\n" );
}
R_DrawElements( input->numIndexes, input->indexes );
if ( qglUnlockArraysEXT )
{
qglUnlockArraysEXT( );
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
qglDisable( GL_POLYGON_OFFSET_LINE );
}
else
{
// same old showtris
GL_State( GLS_POLYMODE_LINE | GLS_DEPTHMASK_TRUE );
qglDepthRange( 0, 0 );
qglDisableClientState (GL_COLOR_ARRAY);
qglDisableClientState (GL_TEXTURE_COORD_ARRAY);
qglVertexPointer (3, GL_FLOAT, 16, input->xyz); // padded for SIMD
if (qglLockArraysEXT) {
qglLockArraysEXT(0, input->numVertexes);
GLimp_LogComment( "glLockArraysEXT\n" );
}
R_DrawElements( input->numIndexes, input->indexes );
if (qglUnlockArraysEXT) {
qglUnlockArraysEXT();
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
qglDepthRange( 0, 1 );
}
}
/*
================
DrawNormals
Draws vertex normals for debugging
================
*/
static void DrawNormals (shaderCommands_t *input) {
int i;
vec3_t temp;
GL_Bind( tr.whiteImage );
qglColor3f (1,1,1);
qglDepthRange( 0, 0 ); // never occluded
GL_State( GLS_POLYMODE_LINE | GLS_DEPTHMASK_TRUE );
qglBegin (GL_LINES);
for (i = 0 ; i < input->numVertexes ; i++) {
qglVertex3fv (input->xyz[i]);
VectorMA (input->xyz[i], 2, input->normal[i], temp);
qglVertex3fv (temp);
}
qglEnd ();
qglDepthRange( 0, 1 );
}
/*
==============
RB_BeginSurface
We must set some things up before beginning any tesselation,
because a surface may be forced to perform a RB_End due
to overflow.
==============
*/
void RB_BeginSurface( shader_t *shader, int fogNum ) {
// shader_t *state = (shader->remappedShader) ? shader->remappedShader : shader;
shader_t *state = shader;
tess.numIndexes = 0;
tess.numVertexes = 0;
tess.shader = state;//shader;
tess.fogNum = fogNum;
tess.dlightBits = 0; // will be OR'd in by surface functions
tess.SSInitializedWind = qfalse; //is this right?
tess.xstages = state->stages;
tess.numPasses = state->numUnfoggedPasses;
tess.currentStageIteratorFunc = shader->sky ? RB_StageIteratorSky : RB_StageIteratorGeneric;
tess.fading = false;
tess.registration++;
}
/*
===================
DrawMultitextured
output = t0 * t1 or t0 + t1
t0 = most upstream according to spec
t1 = most downstream according to spec
===================
*/
static void DrawMultitextured( shaderCommands_t *input, int stage ) {
shaderStage_t *pStage;
pStage = &tess.xstages[stage];
GL_State( pStage->stateBits );
//
// base
//
GL_SelectTexture( 0 );
qglTexCoordPointer( 2, GL_FLOAT, 0, input->svars.texcoords[0] );
R_BindAnimatedImage( &pStage->bundle[0] );
//
// lightmap/secondary pass
//
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_2D );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
if ( r_lightmap->integer ) {
GL_TexEnv( GL_REPLACE );
} else {
GL_TexEnv( tess.shader->multitextureEnv );
}
qglTexCoordPointer( 2, GL_FLOAT, 0, input->svars.texcoords[1] );
R_BindAnimatedImage( &pStage->bundle[1] );
R_DrawElements( input->numIndexes, input->indexes );
//
// disable texturing on TEXTURE1, then select TEXTURE0
//
qglDisable( GL_TEXTURE_2D );
GL_SelectTexture( 0 );
}
//--EF_old dlight code...reverting back to Quake III dlight to see if people like that better
// Lifted the whole function because someone hacked the heck out of this and it doesn't seem to
// be a case where it's as easy as just changing the blend mode....
/*
===================
ProjectDlightTexture
Perform dynamic lighting with another rendering pass
===================
*/
/*
static void ProjectDlightTexture( void ) {
int l;
vec3_t origin;
float *texCoords;
byte *colors;
byte clipBits[SHADER_MAX_VERTEXES];
float texCoordsArray[SHADER_MAX_VERTEXES][2];
byte colorArray[SHADER_MAX_VERTEXES][4];
unsigned hitIndexes[SHADER_MAX_INDEXES];
if ( !backEnd.refdef.num_dlights ) {
return;
}
for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) {
int numIndexes;
vec3_t floatColor;
float scale;
float radius, chord;
dlight_t *dl;
int i;
if ( !( tess.dlightBits & ( 1 << l ) ) ) {
continue; // this surface definately doesn't have any of this light
}
texCoords = texCoordsArray[0];
colors = colorArray[0];
dl = &backEnd.refdef.dlights[l];
VectorCopy( dl->transformed, origin );
radius = dl->radius;
chord = radius*radius*0.25f;
scale = 1.0f / radius;
floatColor[0] = dl->color[0] * 255f;
floatColor[1] = dl->color[1] * 255f;
floatColor[2] = dl->color[2] * 255f;
for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) {
vec3_t distVec;
int clip;
float tempColor;
float modulate, dist;
// if ( 0 ) {
// clipBits[i] = 255; // definately not dlighted
// continue;
// }
//
backEnd.pc.c_dlightVertexes++;
VectorSubtract( origin, tess.xyz[i], distVec );
dist = VectorLengthSquared(distVec);
texCoords[0] = 0.5 + distVec[0] * scale; //xy projection
texCoords[1] = 0.5 + distVec[1] * scale;
clip = 0;
if ( texCoords[0] < 0 ) {
clip |= 1;
} else if ( texCoords[0] > 1 ) {
clip |= 2;
}
if ( texCoords[1] < 0 ) {
clip |= 4;
} else if ( texCoords[1] > 1 ) {
clip |= 8;
}
clipBits[i] = clip;
// modulate the strength based on the height and color
if ( dist > chord) {
clip |= 16;
modulate = 255*1.0ff;
} else {
modulate = 255*2*dist*scale*scale;
}
tempColor = floatColor[0] + modulate;
colors[0] = tempColor > 255 ? 255: Q_ftol(tempColor);
tempColor = floatColor[1] + modulate;
colors[1] = tempColor > 255 ? 255: Q_ftol(tempColor);
tempColor = floatColor[2] + modulate;
colors[2] = tempColor > 255 ? 255: Q_ftol(tempColor);
// colors[3] = 255;
if ( distVec[2] > radius ) {
colors[3] = 0;
} else if ( distVec[2] < -radius ) {
colors[3] = 0;
} else {
if ( distVec[2] < 0 ) {
distVec[2] = -distVec[2];
}
if ( distVec[2] < radius * 0.5 ) {
colors[3] = 255;
} else {
colors[3] = Q_ftol(255* (radius - distVec[2]) * scale);
}
}
}
// build a list of triangles that need light
numIndexes = 0;
for ( i = 0 ; i < tess.numIndexes ; i += 3 ) {
int a, b, c;
a = tess.indexes[i];
b = tess.indexes[i+1];
c = tess.indexes[i+2];
if ( clipBits[a] & clipBits[b] & clipBits[c] ) {
continue; // not lighted
}
hitIndexes[numIndexes] = a;
hitIndexes[numIndexes+1] = b;
hitIndexes[numIndexes+2] = c;
numIndexes += 3;
}
if ( !numIndexes ) {
continue;
}
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
// include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light
// where they aren't rendered
GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_SRC_COLOR | GLS_DEPTHFUNC_EQUAL);//our way
// GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); //Id way
R_DrawElements( numIndexes, hitIndexes );
backEnd.pc.c_totalIndexes += numIndexes;
backEnd.pc.c_dlightIndexes += numIndexes;
}
}
*/
// Lifted from Quake III to see if people like this kind of dlight better
/*
===================
ProjectDlightTexture
Perform dynamic lighting with another rendering pass
===================
*/
static void ProjectDlightTexture2( void ) {
int i, l;
vec3_t origin;
byte clipBits[SHADER_MAX_VERTEXES];
float texCoordsArray[SHADER_MAX_VERTEXES][2];
float oldTexCoordsArray[SHADER_MAX_VERTEXES][2];
float vertCoordsArray[SHADER_MAX_VERTEXES][4];
unsigned int colorArray[SHADER_MAX_VERTEXES];
glIndex_t hitIndexes[SHADER_MAX_INDEXES];
int numIndexes;
float radius;
#ifndef JK2_MODE
int fogging;
#endif
shaderStage_t *dStage;
vec3_t posa;
vec3_t posb;
vec3_t posc;
vec3_t dist;
vec3_t e1;
vec3_t e2;
vec3_t normal;
float fac,modulate;
vec3_t floatColor;
byte colorTemp[4];
int needResetVerts=0;
if ( !backEnd.refdef.num_dlights )
{
return;
}
for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ )
{
dlight_t *dl;
if ( !( tess.dlightBits & ( 1 << l ) ) ) {
continue; // this surface definately doesn't have any of this light
}
dl = &backEnd.refdef.dlights[l];
VectorCopy( dl->transformed, origin );
radius = dl->radius;
int clipall = 63;
for ( i = 0 ; i < tess.numVertexes ; i++)
{
int clip;
VectorSubtract( origin, tess.xyz[i], dist );
clip = 0;
if ( dist[0] < -radius )
{
clip |= 1;
}
else if ( dist[0] > radius )
{
clip |= 2;
}
if ( dist[1] < -radius )
{
clip |= 4;
}
else if ( dist[1] > radius )
{
clip |= 8;
}
if ( dist[2] < -radius )
{
clip |= 16;
}
else if ( dist[2] > radius )
{
clip |= 32;
}
clipBits[i] = clip;
clipall &= clip;
}
if ( clipall )
{
continue; // this surface doesn't have any of this light
}
floatColor[0] = dl->color[0] * 255.0f;
floatColor[1] = dl->color[1] * 255.0f;
floatColor[2] = dl->color[2] * 255.0f;
// build a list of triangles that need light
numIndexes = 0;
for ( i = 0 ; i < tess.numIndexes ; i += 3 )
{
int a, b, c;
a = tess.indexes[i];
b = tess.indexes[i+1];
c = tess.indexes[i+2];
if ( clipBits[a] & clipBits[b] & clipBits[c] )
{
continue; // not lighted
}
// copy the vertex positions
VectorCopy(tess.xyz[a],posa);
VectorCopy(tess.xyz[b],posb);
VectorCopy(tess.xyz[c],posc);
VectorSubtract( posa, posb,e1);
VectorSubtract( posc, posb,e2);
CrossProduct(e1,e2,normal);
// fac=DotProduct(normal,origin)-DotProduct(normal,posa);
// if (fac <= 0.0f || // backface
// rjr - removed for hacking if ( (!r_dlightBacks->integer && DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f) || // backface
if ( DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f || // backface
DotProduct(normal,normal) < 1E-8f) // junk triangle
{
continue;
}
VectorNormalize(normal);
fac=DotProduct(normal,origin)-DotProduct(normal,posa);
if (fac >= radius) // out of range
{
continue;
}
modulate = 1.0f-((fac*fac) / (radius*radius));
fac = 0.5f/sqrtf(radius*radius - fac*fac);
// save the verts
VectorCopy(posa,vertCoordsArray[numIndexes]);
VectorCopy(posb,vertCoordsArray[numIndexes+1]);
VectorCopy(posc,vertCoordsArray[numIndexes+2]);
// now we need e1 and e2 to be an orthonormal basis
if (DotProduct(e1,e1) > DotProduct(e2,e2))
{
VectorNormalize(e1);
CrossProduct(e1,normal,e2);
}
else
{
VectorNormalize(e2);
CrossProduct(normal,e2,e1);
}
VectorScale(e1,fac,e1);
VectorScale(e2,fac,e2);
VectorSubtract( posa, origin,dist);
texCoordsArray[numIndexes][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes][1]=DotProduct(dist,e2)+0.5f;
VectorSubtract( posb, origin,dist);
texCoordsArray[numIndexes+1][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes+1][1]=DotProduct(dist,e2)+0.5f;
VectorSubtract( posc, origin,dist);
texCoordsArray[numIndexes+2][0]=DotProduct(dist,e1)+0.5f;
texCoordsArray[numIndexes+2][1]=DotProduct(dist,e2)+0.5f;
if ((texCoordsArray[numIndexes][0] < 0.0f && texCoordsArray[numIndexes+1][0] < 0.0f && texCoordsArray[numIndexes+2][0] < 0.0f) ||
(texCoordsArray[numIndexes][0] > 1.0f && texCoordsArray[numIndexes+1][0] > 1.0f && texCoordsArray[numIndexes+2][0] > 1.0f) ||
(texCoordsArray[numIndexes][1] < 0.0f && texCoordsArray[numIndexes+1][1] < 0.0f && texCoordsArray[numIndexes+2][1] < 0.0f) ||
(texCoordsArray[numIndexes][1] > 1.0f && texCoordsArray[numIndexes+1][1] > 1.0f && texCoordsArray[numIndexes+2][1] > 1.0f) )
{
continue; // didn't end up hitting this tri
}
// these are the old texture coordinates for the multitexture dlight
/* old code, get from the svars = wrong
oldTexCoordsArray[numIndexes][0]=tess.svars.texcoords[0][a][0];
oldTexCoordsArray[numIndexes][1]=tess.svars.texcoords[0][a][1];
oldTexCoordsArray[numIndexes+1][0]=tess.svars.texcoords[0][b][0];
oldTexCoordsArray[numIndexes+1][1]=tess.svars.texcoords[0][b][1];
oldTexCoordsArray[numIndexes+2][0]=tess.svars.texcoords[0][c][0];
oldTexCoordsArray[numIndexes+2][1]=tess.svars.texcoords[0][c][1];
*/
oldTexCoordsArray[numIndexes][0]=tess.texCoords[a][0][0];
oldTexCoordsArray[numIndexes][1]=tess.texCoords[a][0][1];
oldTexCoordsArray[numIndexes+1][0]=tess.texCoords[b][0][0];
oldTexCoordsArray[numIndexes+1][1]=tess.texCoords[b][0][1];
oldTexCoordsArray[numIndexes+2][0]=tess.texCoords[c][0][0];
oldTexCoordsArray[numIndexes+2][1]=tess.texCoords[c][0][1];
colorTemp[0] = Q_ftol(floatColor[0] * modulate);
colorTemp[1] = Q_ftol(floatColor[1] * modulate);
colorTemp[2] = Q_ftol(floatColor[2] * modulate);
colorTemp[3] = 255;
byteAlias_t *ba = (byteAlias_t *)&colorTemp;
colorArray[numIndexes + 0] = ba->ui;
colorArray[numIndexes + 1] = ba->ui;
colorArray[numIndexes + 2] = ba->ui;
hitIndexes[numIndexes] = numIndexes;
hitIndexes[numIndexes+1] = numIndexes+1;
hitIndexes[numIndexes+2] = numIndexes+2;
numIndexes += 3;
if (numIndexes>=SHADER_MAX_VERTEXES-3)
{
break; // we are out of space, so we are done :)
}
}
if ( !numIndexes ) {
continue;
}
#ifndef JK2_MODE
//don't have fog enabled when we redraw with alpha test, or it will double over
//and screw the tri up -rww
if (r_drawfog->value == 2 &&
tr.world &&
(tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs))
{
fogging = qglIsEnabled(GL_FOG);
if (fogging)
{
qglDisable(GL_FOG);
}
}
else
{
fogging = 0;
}
#endif
if (!needResetVerts)
{
needResetVerts=1;
if (qglUnlockArraysEXT)
{
qglUnlockArraysEXT();
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
}
qglVertexPointer (3, GL_FLOAT, 16, vertCoordsArray); // padded for SIMD
dStage = NULL;
if (tess.shader && qglActiveTextureARB)
{
int i = 0;
while (i < tess.shader->numUnfoggedPasses)
{
const int blendBits = (GLS_SRCBLEND_BITS+GLS_DSTBLEND_BITS);
if (((tess.shader->stages[i].bundle[0].image && !tess.shader->stages[i].bundle[0].isLightmap && !tess.shader->stages[i].bundle[0].numTexMods && tess.shader->stages[i].bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[0].tcGen != TCGEN_FOG) ||
(tess.shader->stages[i].bundle[1].image && !tess.shader->stages[i].bundle[1].isLightmap && !tess.shader->stages[i].bundle[1].numTexMods && tess.shader->stages[i].bundle[1].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[1].tcGen != TCGEN_FOG)) &&
(tess.shader->stages[i].stateBits & blendBits) == 0 )
{ //only use non-lightmap opaque stages
dStage = &tess.shader->stages[i];
break;
}
i++;
}
}
if (dStage)
{
GL_SelectTexture( 0 );
GL_State(0);
qglTexCoordPointer( 2, GL_FLOAT, 0, oldTexCoordsArray[0] );
if (dStage->bundle[0].image && !dStage->bundle[0].isLightmap && !dStage->bundle[0].numTexMods && dStage->bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && dStage->bundle[0].tcGen != TCGEN_FOG)
{
R_BindAnimatedImage( &dStage->bundle[0] );
}
else
{
R_BindAnimatedImage( &dStage->bundle[1] );
}
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_2D );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
GL_TexEnv( GL_MODULATE );
GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL);// | GLS_ATEST_GT_0);
R_DrawElements( numIndexes, hitIndexes );
qglDisable( GL_TEXTURE_2D );
GL_SelectTexture(0);
}
else
{
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] );
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray );
GL_Bind( tr.dlightImage );
// include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light
// where they aren't rendered
//if ( dl->additive ) {
// GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
//}
//else
{
GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL );
}
R_DrawElements( numIndexes, hitIndexes );
}
#ifndef JK2_MODE
if (fogging)
{
qglEnable(GL_FOG);
}
#endif
backEnd.pc.c_totalIndexes += numIndexes;
backEnd.pc.c_dlightIndexes += numIndexes;
}
if (needResetVerts)
{
qglVertexPointer (3, GL_FLOAT, 16, tess.xyz); // padded for SIMD
if (qglLockArraysEXT)
{
qglLockArraysEXT(0, tess.numVertexes);
GLimp_LogComment( "glLockArraysEXT\n" );
}
}
}
static void ProjectDlightTexture( void ) {
int i, l;
vec3_t origin;
float *texCoords;
byte *colors;
byte clipBits[SHADER_MAX_VERTEXES];
float texCoordsArray[SHADER_MAX_VERTEXES][2];
byte colorArray[SHADER_MAX_VERTEXES][4];
glIndex_t hitIndexes[SHADER_MAX_INDEXES];
int numIndexes;
float scale;
float radius;
#ifndef JK2_MODE