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tenebrae2/gl_bumpgf.c
jpaana 338d299280 Make allocchain static just in case
2003-02-16 23:50:46 +00:00

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/*
Copyright (C) 2001-2002 Charles Hollemeersch
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
PENTA: the whole file is freakin penta...
Same as gl_bumpmap.c but geforce3&4 optimized
These routines require 4 texture units an some need nvidia shaders
Most lights reqire 2 passes this way
1 diffuse
2 specular
If a light has a cubemap filter it requires 3 passes
1 attenuation
2 diffuse
3 specular
*/
#include "quakedef.h"
#include "nvparse/nvparse.h"
//<AWE> "diffuse_program_object" has to be defined static. Otherwise nameclash with "gl_bumpradeon.c".
static GLuint diffuse_program_object;
static GLuint specularalias_program_object; //He he nice name to type a lot
/*
Pixel shader for diffuse bump mapping does diffuse bumpmapping with norm cube, self shadowing & dist attent in
1 pass (thanx to the 4 texture units on a gf4)
*/
void GL_EnableDiffuseShaderGF3(const transform_t *tr, vec3_t lightOrig) {
float invrad = 1/currentshadowlight->radius;
//tex 0 = normal map
//tex 1 = nomalization cube map (tangent space light vector)
//tex 2 = color map
//tex 3 = (attenuation or light filter, depends on light settings but the actual
// register combiner setup does not change only the bound texture)
GL_SelectTexture(GL_TEXTURE1_ARB);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, normcube_texture_object);
GL_SelectTexture(GL_TEXTURE2_ARB);
glEnable(GL_TEXTURE_2D);
GL_SelectTexture(GL_TEXTURE3_ARB);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
if (currentshadowlight->filtercube) {
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, currentshadowlight->filtercube);
GL_SetupCubeMapMatrix(tr);
} else {
glEnable(GL_TEXTURE_3D);
glBindTexture(GL_TEXTURE_3D, atten3d_texture_object);
glTranslatef(0.5,0.5,0.5);
glScalef(0.5,0.5,0.5);
glScalef(invrad, invrad, invrad);
glTranslatef(-lightOrig[0], -lightOrig[1], -lightOrig[2]);
}
GL_SelectTexture(GL_TEXTURE0_ARB);
//combiner0 RGB: calculate
// (normal map = A) dot (norm cubemap = B) save in Spare0 RGB
// (color map = C) mul (light filter = D) save in Spare1 RGB
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE2_ARB, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV, GL_TEXTURE3_ARB, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerOutputNV(GL_COMBINER0_NV, GL_RGB, GL_SPARE0_NV, GL_SPARE1_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE);
//combiner0 Alpha: store 8*expand(tang space light vect z comp) into Spare0 Alpha (this is the selfshadow term)
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
qglCombinerOutputNV(GL_COMBINER0_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_SPARE0_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//Only if the light is not white we use a second combiner
//this is when the light is at its full brightness (for flickering lights)
//and doesn't have any color (other than white)
if ((currentshadowlight->color[0] != 1) || (currentshadowlight->color[1] != 1) || (currentshadowlight->color[2] != 1)) {
qglCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 2);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerOutputNV(GL_COMBINER1_NV, GL_RGB, GL_SPARE1_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//alpha out = nothing
qglCombinerOutputNV(GL_COMBINER1_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
} else {
qglCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 1);
}
//final combiner: final RGB = (Spare 0 Alpha) * ( (Spare 0 RGB) * (Spare 1 RGB) )
qglFinalCombinerInputNV(GL_VARIABLE_A_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
//qglFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_TEXTURE2_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_E_TIMES_F_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
//qglFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_E_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_F_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
//final cominer alpha doesn't really matter we use A dot B
qglFinalCombinerInputNV(GL_VARIABLE_G_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE);
glEnable(GL_REGISTER_COMBINERS_NV);
// Enable the vertex program.
//qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, diffuse_program_object );
//glEnable( GL_VERTEX_PROGRAM_ARB );
qglBindProgramNV( GL_VERTEX_PROGRAM_NV, diffuse_program_object );
qglProgramParameter4fNV( GL_VERTEX_PROGRAM_NV, 24, currentshadowlight->origin[0],
currentshadowlight->origin[1], currentshadowlight->origin[2], 1.0);
qglProgramParameter4fNV( GL_VERTEX_PROGRAM_NV, 25, r_refdef.vieworg[0],
r_refdef.vieworg[1], r_refdef.vieworg[2], 1.0);
glEnable( GL_VERTEX_PROGRAM_NV );
}
void GL_DisableDiffuseShaderGF3() {
qglCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 1);
//tex 0 = normal map
//tex 1 = nomalization cube map (tangent space light vector)
//tex 2 = color map
//tex 3 = (attenuation or light filter, depends on light settings)
GL_SelectTexture(GL_TEXTURE1_ARB);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
GL_SelectTexture(GL_TEXTURE2_ARB);
glDisable(GL_TEXTURE_2D);
GL_SelectTexture(GL_TEXTURE3_ARB);
if (currentshadowlight->filtercube) {
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
} else {
glDisable(GL_TEXTURE_3D);
}
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
GL_SelectTexture(GL_TEXTURE0_ARB);
glDisable(GL_REGISTER_COMBINERS_NV);
// glDisable( GL_VERTEX_PROGRAM_ARB );
glDisable( GL_VERTEX_PROGRAM_NV );
}
void GL_EnableSpecularShaderGF3(const transform_t *tr, vec3_t lightOrig, qboolean alias) {
vec3_t scaler = {0.5f, 0.5f, 0.5f};
float invrad = 1/currentshadowlight->radius;
//tex 0 = normal map
//tex 1 = nomalization cube map (tangent space half angle)
//tex 2 = color map
//tex 3 = (attenuation or light filter, depends on light settings but the actual
// register combiner setup does not change only the bound texture)
GL_SelectTexture(GL_TEXTURE1_ARB);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, normcube_texture_object);
GL_SelectTexture(GL_TEXTURE2_ARB);
glEnable(GL_TEXTURE_2D);
GL_SelectTexture(GL_TEXTURE3_ARB);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
if (currentshadowlight->filtercube) {
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, currentshadowlight->filtercube);
GL_SetupCubeMapMatrix(tr);
} else {
glEnable(GL_TEXTURE_3D);
glBindTexture(GL_TEXTURE_3D, atten3d_texture_object);
glTranslatef(0.5,0.5,0.5);
glScalef(0.5,0.5,0.5);
glScalef(invrad, invrad, invrad);
glTranslatef(-lightOrig[0], -lightOrig[1], -lightOrig[2]);
}
GL_SelectTexture(GL_TEXTURE0_ARB);
qglCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 4);
qglCombinerParameterfvNV(GL_CONSTANT_COLOR0_NV, &scaler[0]);
//combiner0 RGB: calculate
// (normal map = A) dot (norm cubemap = B) save in Spare0 RGB
// (gloss map = C) mul (light filter = D) save in Spare1 RGB
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV , GL_ALPHA);
qglCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV, GL_TEXTURE3_ARB, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerOutputNV(GL_COMBINER0_NV, GL_RGB, GL_SPARE0_NV, GL_SPARE1_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE);
//combiner0 Alpha: store 8*expand(tang space light vect z comp) into Spare1 Alpha (this is the selfshadow term)
if (alias) {
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_SECONDARY_COLOR_NV, GL_EXPAND_NORMAL_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_C_NV, GL_SECONDARY_COLOR_NV, GL_EXPAND_NORMAL_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
} else {
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_C_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER0_NV, GL_ALPHA, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
}
qglCombinerOutputNV(GL_COMBINER0_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_SPARE1_NV, GL_SCALE_BY_FOUR_NV, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//rgb = multipy light with color
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerOutputNV(GL_COMBINER1_NV, GL_RGB, GL_SPARE1_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//combiner1 Alpha: calculate 2*((N'dotH)^2 - 0.5f) -> store in Spare0 Alpha ("raise" to an exponent)
qglCombinerInputNV(GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_C_NV, GL_CONSTANT_COLOR0_NV, GL_SIGNED_NEGATE_NV, GL_BLUE);
qglCombinerInputNV(GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_ALPHA);
qglCombinerOutputNV(GL_COMBINER1_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_SPARE0_NV, GL_SCALE_BY_TWO_NV, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//combiner2 Alpha: Raise specular further
qglCombinerInputNV(GL_COMBINER2_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER2_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglCombinerOutputNV(GL_COMBINER2_NV, GL_ALPHA, GL_SPARE0_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//combiner2 rgb: Do nothing
// qglCombinerInputNV(GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
// qglCombinerInputNV(GL_COMBINER2_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE2_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
// qglCombinerOutputNV(GL_COMBINER2_NV, GL_RGB, GL_SPARE1_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
qglCombinerOutputNV(GL_COMBINER2_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//combiner3 Alpha: Raise specular further
qglCombinerInputNV(GL_COMBINER3_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER3_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglCombinerOutputNV(GL_COMBINER3_NV, GL_ALPHA, GL_SPARE0_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//combiner3 rgb: Do nothing
// qglCombinerOutputNV(GL_COMBINER2_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
qglCombinerInputNV(GL_COMBINER3_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglCombinerInputNV(GL_COMBINER3_NV, GL_RGB, GL_VARIABLE_B_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglCombinerInputNV(GL_COMBINER3_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV , GL_ALPHA);
qglCombinerInputNV(GL_COMBINER3_NV, GL_RGB, GL_VARIABLE_D_NV, GL_TEXTURE3_ARB, GL_UNSIGNED_IDENTITY_NV , GL_RGB);
qglCombinerOutputNV(GL_COMBINER3_NV, GL_RGB, GL_SPARE1_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//final combiner: final RGB = (Spare 0 Alpha) * ( (Spare 0 RGB) * (Spare 1 RGB) )
qglFinalCombinerInputNV(GL_VARIABLE_A_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA);
qglFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_E_TIMES_F_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_E_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
qglFinalCombinerInputNV(GL_VARIABLE_F_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
//final cominer alpha doesn't really matter we use A dot B
qglFinalCombinerInputNV(GL_VARIABLE_G_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE);
glEnable(GL_REGISTER_COMBINERS_NV);
// Enable the vertex program.
// qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, diffuse_program_object );
// glEnable( GL_VERTEX_PROGRAM_ARB );
//if (alias)
qglBindProgramNV( GL_VERTEX_PROGRAM_NV, specularalias_program_object );
//else
// qglBindProgramNV( GL_VERTEX_PROGRAM_NV, diffuse_program_object );
qglProgramParameter4fNV( GL_VERTEX_PROGRAM_NV, 24, currentshadowlight->origin[0],
currentshadowlight->origin[1], currentshadowlight->origin[2], 1.0);
qglProgramParameter4fNV( GL_VERTEX_PROGRAM_NV, 25,r_refdef.vieworg[0], r_refdef.vieworg[1], r_refdef.vieworg[2], 1.0);
glEnable( GL_VERTEX_PROGRAM_NV );
}
/*
GL_DisableSpecularShaderGF3() ??
Same as GL_DisableDiffuseShaderGF3()
*/
void GL_EnableAttentShaderGF3(vec3_t lightOrig) {
float invrad = 1/currentshadowlight->radius;
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
glTranslatef(0.5,0.5,0.5);
glScalef(0.5,0.5,0.5);
glScalef(invrad, invrad, invrad);
glTranslatef(-lightOrig[0],
-lightOrig[1],
-lightOrig[2]);
glDisable(GL_TEXTURE_2D);
glEnable(GL_TEXTURE_3D);
glBindTexture(GL_TEXTURE_3D, atten3d_texture_object);
}
void GL_DisableAttentShaderGF3() {
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glDisable(GL_TEXTURE_3D);
glEnable(GL_TEXTURE_2D);
}
/*
typedef struct {
float *vertices;
int vertexstride;
float *texcoords;
int texcoordstride;
float *lightmapcoords;
int lightmapstride;
float *tangents;
int tangentstride;
float *binormals;
int binormalstride;
float *normals;
int normalstride;
unsigned char *colors;
int colorstride;
} vertexdef_t;
typedef struct {
//system code
void (*initDriver) (void);
void (*freeDriver) (void);
void *(*getDriverMem) (size_t size, drivermem_t hint);
void (*freeAllDriverMem) (void);
//FIXME: Do we need fence like support?
//drawing code
void (*drawTriangleListBase) (vertexdef_t *verts, int *indecies, int numIndecies, shader_t *shader);
void (*drawTriangleListBump) (vertexdef_t *verts, int *indecies, int numIndecies, shader_t *shader);
void (*drawTriangleListSys) (vertexdef_t *verts, int *indecies, int numIndecies, shader_t *shader);
void (*drawSurfaceListBase) (msurface_t **surfs, int numSurfaces);
void (*drawSurfaceListBump) (msurface_t **surfs, int numSurfaces);
} bumpdriver_t;
*/
/************************
Shader utitlity routines
*************************/
void GF3_SetupTcMod(tcmod_t *tc) {
switch (tc->type) {
case TCMOD_ROTATE:
glTranslatef(0.5,0.5,0.0);
glRotatef(cl.time * tc->params[0],0,0,1);
glTranslatef(-0.5, -0.5, 0.0);
break;
case TCMOD_SCROLL:
glTranslatef(cl.time * tc->params[0], cl.time * tc->params[1], 0.0);
break;
case TCMOD_SCALE:
glScalef(tc->params[0],tc->params[1],1.0);
break;
case TCMOD_STRETCH:
//PENTA: fixme
glScalef(1.0, 1.0, 1.0);
break;
}
}
void GF3_SetupSimpleStage(stage_t *s) {
tcmod_t *tc;
int i;
if (s->type != STAGE_SIMPLE) {
Con_Printf("Non simple stage, in simple stage list");
return;
}
glMatrixMode(GL_TEXTURE);
glPushMatrix();
for (i=0; i<s->numtcmods; i++) {
GF3_SetupTcMod(&s->tcmods[i]);
}
if (s->src_blend > -1) {
glBlendFunc(s->src_blend, s->dst_blend);
glEnable(GL_BLEND);
}
if (s->alphatresh > 0) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, s->alphatresh);
}
if ((s->numtextures > 0) && (s->texture[0]))
GL_Bind(s->texture[0]->texnum);
}
/************************
Generic triangle list routines
*************************/
void FormatError () {
Sys_Error("Invalid vertexdef_t\n");
}
void GF3_sendTriangleListWV(const vertexdef_t *verts, int *indecies, int numIndecies) {
glVertexPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//draw them
glDrawElements(GL_TRIANGLES, numIndecies, GL_UNSIGNED_INT, indecies);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
void GF3_sendTriangleListTA(const vertexdef_t *verts, int *indecies, int numIndecies) {
glVertexPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
if (!verts->texcoords) FormatError();
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(2, GL_FLOAT, verts->texcoordstride, verts->texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (!verts->tangents) FormatError();
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glTexCoordPointer(3, GL_FLOAT, verts->tangentstride, verts->tangents);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (!verts->binormals) FormatError();
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glTexCoordPointer(3, GL_FLOAT, verts->binormalstride, verts->binormals);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (!verts->normals) FormatError();
qglClientActiveTextureARB(GL_TEXTURE3_ARB);
glTexCoordPointer(3, GL_FLOAT, verts->normalstride, verts->normals);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//draw them
glDrawElements(GL_TRIANGLES, numIndecies, GL_UNSIGNED_INT, indecies);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
GL_SelectTexture(GL_TEXTURE0_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
void GF3_drawTriangleListBump (const vertexdef_t *verts, int *indecies, int numIndecies, shader_t *shader, const transform_t *tr) {
if (currentshadowlight->filtercube) {
//draw attent into dest alpha
GL_DrawAlpha();
GL_EnableAttentShaderGF3(currentshadowlight->origin);
GF3_sendTriangleListWV(verts,indecies,numIndecies);
GL_DisableAttentShaderGF3();
GL_ModulateAlphaDrawColor();
} else {
GL_AddColor();
}
glColor3fv(&currentshadowlight->color[0]);
GL_EnableSpecularShaderGF3(tr,currentshadowlight->origin,true);
//bind the correct texture
GL_SelectTexture(GL_TEXTURE0_ARB);
if (shader->numbumpstages > 0)
GL_Bind(shader->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (shader->numcolorstages > 0)
GL_Bind(shader->colorstages[0].texture[0]->texnum);
GF3_sendTriangleListTA(verts,indecies,numIndecies);
GL_DisableDiffuseShaderGF3();
GL_EnableDiffuseShaderGF3(tr,currentshadowlight->origin);
//bind the correct texture
GL_SelectTexture(GL_TEXTURE0_ARB);
if (shader->numbumpstages > 0)
GL_Bind(shader->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (shader->numcolorstages > 0)
GL_Bind(shader->colorstages[0].texture[0]->texnum);
GF3_sendTriangleListTA(verts,indecies,numIndecies);
GL_DisableDiffuseShaderGF3();
}
void GF3_drawTriangleListBase (vertexdef_t *verts, int *indecies, int numIndecies, shader_t *shader) {
int i;
glVertexPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(2, GL_FLOAT, verts->texcoordstride, verts->texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (!shader->cull) {
glDisable(GL_CULL_FACE);
//Con_Printf("Cullstuff %s\n",shader->name);
}
for (i=0; i<shader->numstages; i++) {
GF3_SetupSimpleStage(&shader->stages[i]);
glDrawElements(GL_TRIANGLES,numIndecies,GL_UNSIGNED_INT,indecies);
glPopMatrix();
}
glMatrixMode(GL_MODELVIEW);
if (verts->colors && (shader->flags & SURF_PPLIGHT)) {
glColorPointer(3, GL_UNSIGNED_BYTE, verts->colorstride, verts->colors);
glEnableClientState(GL_COLOR_ARRAY);
glShadeModel(GL_SMOOTH);
if (shader->numstages && shader->numcolorstages)
if (shader->colorstages[0].src_blend >= 0) {
glEnable(GL_BLEND);
glBlendFunc(shader->colorstages[0].src_blend, shader->colorstages[0].dst_blend);
} else {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
}
else
glDisable(GL_BLEND);
if (shader->numcolorstages) {
if (shader->colorstages[0].numtextures)
GL_Bind(shader->colorstages[0].texture[0]->texnum);
if (shader->colorstages[0].alphatresh > 0) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GEQUAL, shader->colorstages[0].alphatresh);
}
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDrawElements(GL_TRIANGLES,numIndecies,GL_UNSIGNED_INT,indecies);
glDisableClientState(GL_COLOR_ARRAY);
} else if (shader->flags & SURF_PPLIGHT) {
glColor3f(0,0,0);
glDisable(GL_TEXTURE_2D);
glDrawElements(GL_TRIANGLES,numIndecies,GL_UNSIGNED_INT,indecies);
glEnable(GL_TEXTURE_2D);
}
if (!shader->cull) {
glEnable(GL_CULL_FACE);
//Con_Printf("Cullstuff %s\n",shader->name);
}
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_BLEND);
glDisable(GL_ALPHA_TEST);
}
/*************************
Generic world surfaces routines
**************************/
void GF3_sendSurfacesBase(msurface_t **surfs, int numSurfaces, qboolean bindLightmap) {
int i;
glpoly_t *p;
msurface_t *surf;
for (i=0; i<numSurfaces; i++) {
surf = surfs[i];
if (surf->visframe != r_framecount)
continue;
p = surf->polys;
if (bindLightmap) {
if (surf->lightmaptexturenum < 0)
continue;
GL_Bind(lightmap_textures+surf->lightmaptexturenum);
}
glDrawElements(GL_TRIANGLES, p->numindecies, GL_UNSIGNED_INT, &p->indecies[0]);
}
}
void GF3_drawSurfaceListBase (vertexdef_t *verts, msurface_t **surfs, int numSurfaces, shader_t *shader) {
int i;
glVertexPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(2, GL_FLOAT, verts->texcoordstride, verts->texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glColor3ub(255,255,255);
if (!shader->cull) {
glDisable(GL_CULL_FACE);
//Con_Printf("Cullstuff %s\n",shader->name);
}
for (i=0; i<shader->numstages; i++) {
GF3_SetupSimpleStage(&shader->stages[i]);
GF3_sendSurfacesBase(surfs, numSurfaces, false);
glPopMatrix();
}
if (verts->lightmapcoords && (shader->flags & SURF_PPLIGHT)) {
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glTexCoordPointer(2, GL_FLOAT, verts->lightmapstride, verts->lightmapcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (shader->numstages && shader->numcolorstages)
if (shader->colorstages[0].src_blend >= 0) {
glEnable(GL_BLEND);
glBlendFunc(shader->colorstages[0].src_blend, shader->colorstages[0].dst_blend);
} else {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
}
else
glDisable(GL_BLEND);
if (shader->numcolorstages) {
if (shader->colorstages[0].numtextures)
GL_Bind(shader->colorstages[0].texture[0]->texnum);
if (shader->colorstages[0].alphatresh > 0) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GEQUAL, shader->colorstages[0].alphatresh);
}
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_EnableMultitexture();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glColor3f(sh_lightmapbright.value,sh_lightmapbright.value,sh_lightmapbright.value);
GF3_sendSurfacesBase(surfs, numSurfaces, true);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
GL_DisableMultitexture();
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
}
if (!shader->cull) {
glEnable(GL_CULL_FACE);
}
glDisable(GL_ALPHA_TEST);
glMatrixMode(GL_MODELVIEW);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_BLEND);
}
void GF3_sendSurfacesTA(msurface_t **surfs, int numSurfaces) {
int i,j;
glpoly_t *p;
msurface_t *surf;
shader_t *shader, *lastshader;
float *v;
qboolean cull;
lastshader = NULL;
cull = true;
for (i=0; i<numSurfaces; i++) {
surf = surfs[i];
if (surf->visframe != r_framecount)
continue;
if (!(surf->flags & SURF_PPLIGHT))
continue;
p = surf->polys;
shader = surfs[i]->shader->shader;
//less state changes
if (lastshader != shader) {
if (!shader->cull) {
glDisable(GL_CULL_FACE);
cull = false;
} else {
if (!cull)
glEnable(GL_CULL_FACE);
cull = true;
}
//bind the correct texture
GL_SelectTexture(GL_TEXTURE0_ARB);
if (shader->numbumpstages > 0)
GL_Bind(shader->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (shader->numcolorstages > 0)
GL_Bind(shader->colorstages[0].texture[0]->texnum);
lastshader = shader;
}
//Note: texture coords out of begin-end are not a problem...
qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB, &surf->tangent[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE2_ARB, &surf->binormal[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE3_ARB, &surf->plane->normal[0]);
/*
glBegin(GL_POLYGON);
v = (float *)(&globalVertexTable[surf->polys->firstvertex]);
for (j=0; j<p->numverts; j++, v+= VERTEXSIZE) {
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
glVertex3fv(&v[0]);
}
glEnd();
*/
glDrawElements(GL_TRIANGLES, p->numindecies, GL_UNSIGNED_INT, &p->indecies[0]);
}
if (!cull)
glEnable(GL_CULL_FACE);
}
void GF3_sendSurfacesPlain(msurface_t **surfs, int numSurfaces) {
int i,j;
glpoly_t *p;
msurface_t *surf;
shader_t *shader, *lastshader;
float *v;
qboolean cull;
lastshader = NULL;
cull = true;
for (i=0; i<numSurfaces; i++) {
surf = surfs[i];
if (surf->visframe != r_framecount)
continue;
if (!(surf->flags & SURF_PPLIGHT))
continue;
p = surf->polys;
shader = surf->shader->shader;
//less state changes
if (lastshader != shader) {
if (!shader->cull) {
glDisable(GL_CULL_FACE);
cull = false;
} else {
if (!cull)
glEnable(GL_CULL_FACE);
cull = true;
}
lastshader = shader;
}
/*
glBegin(GL_POLYGON);
v = (float *)(&globalVertexTable[surf->polys->firstvertex]);
for (j=0; j<p->numverts; j++, v+= VERTEXSIZE) {
//qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
glVertex3fv(&v[0]);
}
glEnd();
*/
glDrawElements(GL_TRIANGLES, p->numindecies, GL_UNSIGNED_INT, &p->indecies[0]);
}
if (!cull)
glEnable(GL_CULL_FACE);
}
void GF3_drawSurfaceListBump (vertexdef_t *verts, msurface_t **surfs, int numSurfaces,const transform_t *tr) {
glVertexPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (currentshadowlight->filtercube) {
//draw attent into dest alpha
GL_DrawAlpha();
GL_EnableAttentShaderGF3(currentshadowlight->origin);
glTexCoordPointer(3, GL_FLOAT, verts->vertexstride, verts->vertices);
GF3_sendSurfacesPlain(surfs,numSurfaces);
GL_DisableAttentShaderGF3();
GL_ModulateAlphaDrawColor();
} else {
GL_AddColor();
}
glColor3fv(&currentshadowlight->color[0]);
GL_EnableSpecularShaderGF3(tr,currentshadowlight->origin,true);
glTexCoordPointer(2, GL_FLOAT, verts->texcoordstride, verts->texcoords);
GF3_sendSurfacesTA(surfs,numSurfaces);
GL_DisableDiffuseShaderGF3();
GL_EnableDiffuseShaderGF3(tr,currentshadowlight->origin);
GF3_sendSurfacesTA(surfs,numSurfaces);
GL_DisableDiffuseShaderGF3();
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
/*
void R_DrawWorldBumpedGF3() {
vertexdef_t def;
int numsurf;
msurface_t *s;
def.vertices = &globalVertexTable[0].position[0];
def.vertexstride = sizeof(mmvertex_t);
def.texcoords = &globalVertexTable[0].texture[0];
def.texcoordstride = sizeof(mmvertex_t);
def.tangents = NULL;
def.tangentstride = 0;
def.binormals = NULL;
def.binormalstride = 0;
def.normals = NULL;
def.normalstride = 0;
def.lightmapcoords = &globalVertexTable[0].lightmap[0];
def.lightmapstride = sizeof(mmvertex_t);
GF3_drawSurfaceListBump(&def, (msurface_t **)(&currentshadowlight->lightCmds[0]), currentshadowlight->numlightcmds-1);
/*
numsurf = 0;
s = first;
while (s) {
if (numsurf < 1024) {
surfArray[numsurf] = s;
numsurf++;
} else {
GF3_drawSurfaceListBase(&def, surfArray, numsurf, first->shader->shader);
numsurf = 0;
}
s = s->texturechain;
}
if (numsurf) {
GF3_drawSurfaceListBase(&def, surfArray, numsurf, first->shader->shader);
numsurf = 0;
}
Con_Printf("Draw world ambient chain\n");*/
//}
/*
void R_DrawWorldGF3Diffuse(lightcmd_t *lightCmds) {
int command, num, i;
int lightPos = 0;
vec3_t lightOr;
msurface_t *surf;
float *v;
shader_t *s;//XYZ
//support flickering lights
VectorCopy(currentshadowlight->origin,lightOr);
while (1) {
command = lightCmds[lightPos++].asInt;
if (command == 0) break; //end of list
surf = lightCmds[lightPos++].asVoid;
if (surf->visframe != r_framecount) {
lightPos+=(4+surf->polys->numverts*(2+3));
continue;
}
num = surf->polys->numverts;
lightPos+=4;//skip color
//XYZ
s = surf->shader->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
glBegin(command);
qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB, &surf->tangent[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE2_ARB, &surf->binormal[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE3_ARB, &surf->plane->normal[0]);
//v = surf->polys->verts[0];
v = (float *)(&globalVertexTable[surf->polys->firstvertex]);
for (i=0; i<num; i++, v+= VERTEXSIZE) {
//skip attent texture coord.
lightPos+=2;
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
//qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB,
// &lightCmds[lightPos].asFloat);
lightPos+=3;
glVertex3fv(&v[0]);
}
glEnd();
}
GL_SelectTexture(GL_TEXTURE0_ARB);
}
void R_DrawWorldGF3Specular(lightcmd_t *lightCmds) {
int command, num, i;
int lightPos = 0;
vec3_t tsH,H;
float* lightP;
msurface_t *surf;
float *v;
vec3_t lightDir;
shader_t *s;//XYZ
//support flickering lights
//VectorCopy(currentshadowlight->origin,lightOr);
while (1) {
command = lightCmds[lightPos++].asInt;
if (command == 0) break; //end of list
surf = lightCmds[lightPos++].asVoid;
if (surf->visframe != r_framecount) {
lightPos+=(4+surf->polys->numverts*(2+3));
continue;
}
num = surf->polys->numverts;
lightPos+=4;//skip color
//XYZ
s = surf->shader->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
glBegin(command);
qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB, &surf->tangent[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE2_ARB, &surf->binormal[0]);
qglMultiTexCoord3fvARB(GL_TEXTURE3_ARB, &surf->plane->normal[0]);
//v = surf->polys->verts[0];
v = (float *)(&globalVertexTable[surf->polys->firstvertex]);
for (i=0; i<num; i++, v+= VERTEXSIZE) {
lightPos+=2;//skip texcoords
lightP = &lightCmds[lightPos].asFloat;
VectorCopy(lightP, lightDir);
VectorNormalize(lightDir);
lightPos+=3;
//calculate local H vector and put it into tangent space
//r_origin = camera position
//VectorSubtract(r_refdef.vieworg,v,H);
//VectorNormalize(H);
//put H in tangent space firste since lightDir (precalc) is already in tang space
// if (surf->flags & SURF_PLANEBACK) {
// tsH[2] = -DotProduct(H,surf->plane->normal);
// } else {
// tsH[2] = DotProduct(H,surf->plane->normal);
// }
// tsH[1] = -DotProduct(H,surf->binormal);
// tsH[0] = DotProduct(H,surf->tangent);
//
VectorAdd(lightDir,tsH,tsH);
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
//qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB,&tsH[0]);
glVertex3fv(&v[0]);
}
glEnd();
}
GL_SelectTexture(GL_TEXTURE0_ARB);
}
*//*
void R_DrawBrushGF3Diffuse(entity_t *e) {
model_t *model = e->model;
msurface_t *surf;
glpoly_t *poly;
int i, j, count;
brushlightinstant_t *ins = e->brushlightinstant;
float *v;
shader_t *s; //XYZ
count = 0;
surf = &model->surfaces[model->firstmodelsurface];
for (i=0; i<model->nummodelsurfaces; i++, surf++)
{
if (!ins->polygonVis[i]) continue;
poly = surf->polys;
//XYZ
s = surf->shader->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
glBegin(GL_TRIANGLE_FAN);
//v = poly->verts[0];
v = (float *)(&globalVertexTable[poly->firstvertex]);
for (j=0 ; j<poly->numverts ; j++, v+= VERTEXSIZE)
{
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB,&ins->tslights[count+j][0]);
glVertex3fv(v);
}
glEnd();
count+=surf->numedges;
}
}*/
/*
void R_DrawBrushGF3Specular(entity_t *e) {
model_t *model = e->model;
msurface_t *surf;
glpoly_t *poly;
int i, j, count;
brushlightinstant_t *ins = e->brushlightinstant;
float *v;
shader_t *s;//XYZ
count = 0;
surf = &model->surfaces[model->firstmodelsurface];
for (i=0; i<model->nummodelsurfaces; i++, surf++)
{
if (!ins->polygonVis[i]) continue;
poly = surf->polys;
//XYZ
s = surf->shader->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
glBegin(GL_TRIANGLE_FAN);
//v = poly->verts[0];
v = (float *)(&globalVertexTable[poly->firstvertex]);
for (j=0 ; j<poly->numverts ; j++, v+= VERTEXSIZE)
{
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord3fvARB(GL_TEXTURE1_ARB,&ins->tshalfangles[count+j][0]);
glVertex3fv(v);
}
glEnd();
count+=surf->numedges;
}
}*/
/*
void R_DrawAliasBumpedGF3(aliashdr_t *paliashdr, aliasframeinstant_t *instant) {
vertexdef_t def;
transform_t trans;
aliaslightinstant_t *linstant = instant->lightinstant;
def.vertices = &instant->vertices[0][0];
def.vertexstride = 0;
def.texcoords = (float *)((byte *)paliashdr + paliashdr->texcoords);
def.texcoordstride = 0;
def.tangents = &instant->tangents[0][0];
def.tangentstride = 0;
def.binormals = &instant->binomials[0][0];
def.binormalstride = 0;
def.normals = &instant->normals[0][0];
def.normalstride = 0;
VectorCopy(currententity->origin,trans.origin);
VectorCopy(currententity->angles,trans.angles);
trans.scale[0] = trans.scale[1] = trans.scale[2] = 1.0f;
GF3_drawTriangleListBump(&def,&linstant->indecies[0],linstant->numtris*3,paliashdr->shader, &trans);
/*
if (currentshadowlight->filtercube) {
//draw attent into dest alpha
GL_DrawAlpha();
GL_EnableAttentShaderGF3(instant->lightinstant->lightpos);
R_DrawAliasFrameWV(paliashdr,instant, false);
GL_DisableAttentShaderGF3();
GL_ModulateAlphaDrawColor();
} else {
GL_AddColor();
}
glColor3fv(&currentshadowlight->color[0]);
GL_EnableSpecularShaderGF3(false,instant->lightinstant->lightpos,true);
R_DrawAliasFrameGF3Specular(paliashdr,instant);
GL_DisableDiffuseShaderGF3();
GL_EnableDiffuseShaderGF3(false,instant->lightinstant->lightpos);
R_DrawAliasFrameGF3Diffuse(paliashdr,instant);
GL_DisableDiffuseShaderGF3();
*/
//}
/*
void R_DrawAliasFrameGF3Diffuse (aliashdr_t *paliashdr, aliasframeinstant_t *instant)
{
mtriangle_t *tris;
fstvert_t *texcoords;
int anim;
int *indecies;
shader_t *s;
aliaslightinstant_t *linstant = instant->lightinstant;
tris = (mtriangle_t *)((byte *)paliashdr + paliashdr->triangles);
texcoords = (fstvert_t *)((byte *)paliashdr + paliashdr->texcoords);
//bind normal map
anim = (int)(cl.time*10) & 3;
s = paliashdr->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
indecies = (int *)((byte *)paliashdr + paliashdr->indecies);
glVertexPointer(3, GL_FLOAT, 0, instant->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//qglClientActiveTextureARB(GL_TEXTURE1_ARB);
//glTexCoordPointer(3, GL_FLOAT, 0, linstant->tslights);
//glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->tangents);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->binomials);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE3_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->normals);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//glDrawElements(GL_TRIANGLES,paliashdr->numtris*3,GL_UNSIGNED_INT,indecies);
glDrawElements(GL_TRIANGLES,linstant->numtris*3,GL_UNSIGNED_INT,&linstant->indecies[0]);
if (sh_noshadowpopping.value) {
glStencilFunc(GL_LEQUAL, 1, 0xffffffff);
glDrawElements(GL_TRIANGLES,(paliashdr->numtris*3)-(linstant->numtris*3),GL_UNSIGNED_INT,&linstant->indecies[linstant->numtris*3]);
glStencilFunc(GL_EQUAL, 0, 0xffffffff);
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
GL_SelectTexture(GL_TEXTURE0_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
*//*
void R_DrawAliasFrameGF3Specular (aliashdr_t *paliashdr, aliasframeinstant_t *instant)
{
mtriangle_t *tris;
fstvert_t *texcoords;
vec3_t lightOr;
int anim;
int *indecies;
shader_t *s;
aliaslightinstant_t *linstant = instant->lightinstant;
tris = (mtriangle_t *)((byte *)paliashdr + paliashdr->triangles);
texcoords = (fstvert_t *)((byte *)paliashdr + paliashdr->texcoords);
VectorCopy(currentshadowlight->origin,lightOr);
//bind normal map
anim = (int)(cl.time*10) & 3;
s = paliashdr->shader;
GL_SelectTexture(GL_TEXTURE0_ARB);
if (s->numbumpstages > 0)
GL_Bind(s->bumpstages[0].texture[0]->texnum);
GL_SelectTexture(GL_TEXTURE2_ARB);
if (s->numcolorstages > 0)
GL_Bind(s->colorstages[0].texture[0]->texnum);
indecies = (int *)((byte *)paliashdr + paliashdr->indecies);
glVertexPointer(3, GL_FLOAT, 0, instant->vertices);
glEnableClientState(GL_VERTEX_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//qglClientActiveTextureARB(GL_TEXTURE1_ARB);
//glTexCoordPointer(3, GL_FLOAT, 0, linstant->tshalfangles);
//glEnableClientState(GL_TEXTURE_COORD_ARRAY);
//to to correct self shadowing on alias models send the light vectors an extra time...
//qglClientActiveTextureARB(GL_TEXTURE2_ARB);
//glTexCoordPointer(3, GL_FLOAT, 0, linstant->tslights);
//glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->tangents);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->binomials);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE3_ARB);
glTexCoordPointer(3, GL_FLOAT, 0, instant->normals);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glDrawElements(GL_TRIANGLES,linstant->numtris*3,GL_UNSIGNED_INT,&linstant->indecies[0]);
if (sh_noshadowpopping.value) {
glStencilFunc(GL_LEQUAL, 1, 0xffffffff);
//Con_Printf("%i backfacing tris\n",(paliashdr->numtris*3)-(linstant->numtris*3));
glDrawElements(GL_TRIANGLES,(paliashdr->numtris*3)-(linstant->numtris*3),GL_UNSIGNED_INT,&linstant->indecies[linstant->numtris*3]);
glStencilFunc(GL_EQUAL, 0, 0xffffffff);
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE2_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglClientActiveTextureARB(GL_TEXTURE1_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
GL_SelectTexture(GL_TEXTURE0_ARB);
qglClientActiveTextureARB(GL_TEXTURE0_ARB);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
*/
/*
void R_DrawWorldBumpedGF3() {
if (!currentshadowlight->visible)
return;
glDepthMask (0);
glShadeModel (GL_SMOOTH);
if (currentshadowlight->filtercube) {
//draw attent into dest alpha
GL_DrawAlpha();
GL_EnableAttentShaderGF3(currentshadowlight->origin);
R_DrawWorldWV(currentshadowlight->lightCmds, false);
GL_DisableAttentShaderGF3();
GL_ModulateAlphaDrawColor();
} else {
GL_AddColor();
}
glColor3fv(&currentshadowlight->color[0]);
GL_EnableSpecularShaderGF3(true,currentshadowlight->origin,false);
R_DrawWorldGF3Specular(currentshadowlight->lightCmds);
GL_DisableDiffuseShaderGF3();
GL_EnableDiffuseShaderGF3(true,currentshadowlight->origin);
R_DrawWorldGF3Diffuse(currentshadowlight->lightCmds);
GL_DisableDiffuseShaderGF3();
glColor3f (1,1,1);
glDisable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask (1);
}
*//*
void R_DrawBrushBumpedGF3(entity_t *e) {
if (currentshadowlight->filtercube) {
//draw attent into dest alpha
GL_DrawAlpha();
GL_EnableAttentShaderGF3(((brushlightinstant_t *)e->brushlightinstant)->lightpos);
R_DrawBrushWV(e, false);
GL_DisableAttentShaderGF3();
GL_ModulateAlphaDrawColor();
} else {
GL_AddColor();
}
glColor3fv(&currentshadowlight->color[0]);
GL_EnableSpecularShaderGF3(false,((brushlightinstant_t *)e->brushlightinstant)->lightpos,false);
R_DrawBrushGF3Specular(e);
GL_DisableDiffuseShaderGF3();
GL_EnableDiffuseShaderGF3(false,((brushlightinstant_t *)e->brushlightinstant)->lightpos);
R_DrawBrushGF3Diffuse(e);
GL_DisableDiffuseShaderGF3();
}
*/
/*
Vertex programs
*/
/*
Thisone does not do anything too usefull, it just copyies some things around
instead of sending the save coordinates for unit0/2 we send them once and copy
them here, this saves some bandwith and is slightly faster.
*/
char vpDiffuseGF3 [] =
"!!VP1.1 # Diffuse bumpmapping vetex program.\n"
"OPTION NV_position_invariant;"
// Generates a necessary input for the diffuse bumpmapping registers
//
// c[0]...c[3] contains the modelview projection composite matrix
// c[4]...c[7] contains the texture matrix of unit 3
// v[OPOS] contains the per-vertex position
// v[TEX1] contains the per-vertex tangent space light vector
// v[TEX0] contains the per-vertex texture coordinate 0
// o[HPOS] output register for homogeneous position
// o[TEX0] output register for texture coordinate 0
// o[TEX1] output register for texture coordinate 1
// o[TEX2] output register for texture coordinate 2
// o[TEX3] output register for texture coordinate 3
// Transform vertex to view-space
//dynamic calculation of light vector
"ADD R1, -v[OPOS], c[24];"
"DP4 R0.x, R1, R1;"
"RSQ R0.x, R0.x;"
"MUL R0, R0.x, R1;"
//convert to tangent space
"DP4 o[TEX1].x, R0, v[TEX1];"
"DP4 o[TEX1].y, R0, -v[TEX2];"
"DP4 o[TEX1].z, R0, v[TEX3];"
// move light vector out
//"MOV o[TEX1], v[TEX1];"
//copy tex coords of unit 0 to unit 2
"MOV o[TEX0], v[TEX0];"
"MOV o[TEX2], v[TEX0];"
"MOV o[COL0], v[COL0];"
// Transform vertex by texture matrix and copy to output
"DP4 o[TEX3].x, v[OPOS], c[4];"
"DP4 o[TEX3].y, v[OPOS], c[5];"
"DP4 o[TEX3].z, v[OPOS], c[6];"
"DP4 o[TEX3].w, v[OPOS], c[7];"
"END";
char vpSpecularAliasGF3 [] =
"!!VP1.1 # Diffuse bumpmapping vetex program.\n"
"OPTION NV_position_invariant;"
// Generates a necessary input for the diffuse bumpmapping registers
//
// c[0]...c[3] contains the modelview projection composite matrix
// c[4]...c[7] contains the texture matrix of unit 3
// v[OPOS] contains the per-vertex position
// v[TEX1] contains the per-vertex tangent space light vector
// v[TEX0] contains the per-vertex texture coordinate 0
// o[HPOS] output register for homogeneous position
// o[TEX0] output register for texture coordinate 0
// o[TEX1] output register for texture coordinate 1
// o[TEX2] output register for texture coordinate 2
// o[TEX3] output register for texture coordinate 3
// Transform vertex to view-space
//dynamic calculation of light vector
"ADD R1, -v[OPOS], c[24];"
"DP4 R0.x, R1, R1;"
"RSQ R0.x, R0.x;"
"MUL R0, R0.x, R1;"
//dynamic calculation of half angle vector
"ADD R2, -v[OPOS], c[25];"
"DP4 R3.x, R2, R2;"
"RSQ R3.x, R3.x;"
"MUL R3, R3.x, R2;"
"ADD R3, R0, R3;"
//put into tangent space
"DP4 o[TEX1].x, R3, v[TEX1];"
"DP4 o[TEX1].y, R3, -v[TEX2];"
"DP4 o[TEX1].z, R3, v[TEX3];"
//copy tangent space light vector to color
//but we only convert z to tangent space as it's the only component we use
"DP4 R0.z, R0, v[TEX3];"
"MAD o[COL1], R0, c[20], c[20];"
//copy tex coords of unit 0 to unit 2
"MOV o[TEX0], v[TEX0];"
"MOV o[TEX2], v[TEX0];"
"MOV o[COL0], v[COL0];"
// Transform vertex by texture matrix and copy to output
"DP4 o[TEX3].x, v[OPOS], c[4];"
"DP4 o[TEX3].y, v[OPOS], c[5];"
"DP4 o[TEX3].z, v[OPOS], c[6];"
"DP4 o[TEX3].w, v[OPOS], c[7];"
"END";
/*
VectorSubtract(linstant->vieworg, instant->vertices[i], H);
VectorNormalize(H);
VectorAdd(lightDir,H,H);
*/
/*
Only used for specular on alias models when noshadowpopping is enabled...
*//*
char vpSpecularAliasGF3 [] =
"!!VP1.1 # Diffuse bumpmapping vetex program.\n"
"OPTION NV_position_invariant;"
// Generates a necessary input for the diffuse bumpmapping registers
//
// c[0]...c[3] contains the modelview projection composite matrix
// c[4]...c[7] contains the texture matrix of unit 3
// v[OPOS] contains the per-vertex position
// v[TEX1] contains the per-vertex tangent space light vector
// v[TEX0] contains the per-vertex texture coordinate 0
// v[TEX2] contains the per-vertex light vector
// o[HPOS] output register for homogeneous position
// o[TEX0] output register for texture coordinate 0
// o[TEX1] output register for texture coordinate 1
// o[TEX2] output register for texture coordinate 2
// o[TEX3] output register for texture coordinate 3
// Transform vertex to view-space
// Transform vertex by texture matrix and copy to output
"DP4 o[TEX3].x, v[OPOS], c[4];"
"DP4 o[TEX3].y, v[OPOS], c[5];"
"DP4 o[TEX3].z, v[OPOS], c[6];"
"DP4 o[TEX3].w, v[OPOS], c[7];"
"MOV o[TEX0], v[TEX0];"
//range compress into secondary color
"MAD o[COL1], v[TEX2], c[20], c[20];"
//copy tex coords of unit 0 to unit 2
"MOV o[TEX2], v[TEX0];"
"MOV o[TEX1], v[TEX1];"
"MOV o[COL0], v[COL0];"
"END";
*/
typedef struct allocchain_s {
struct allocchain_s *next;
char data[1];//variable sized
} allocchain_t;
static allocchain_t *allocChain = NULL;
void *GF3_getDriverMem(size_t size, drivermem_t hint) {
allocchain_t *r = (allocchain_t *)malloc(size+sizeof(void *));
r->next = allocChain;
allocChain = r;
return &r->data[0];
}
void GF3_freeAllDriverMem(void) {
allocchain_t *r = allocChain;
allocchain_t *next;
while (r) {
next = r->next;
free(r);
r = next;
}
}
void GF3_freeDriver(void) {
//nothing here...
}
void BUMP_InitGeforce3(void) {
GLint errPos, errCode;
const GLubyte *errString;
if ( gl_cardtype != GEFORCE3 ) return;
// Create the vertex program.
qglGenProgramsNV( 1, &diffuse_program_object);
qglLoadProgramNV( GL_VERTEX_PROGRAM_NV, diffuse_program_object,
strlen(vpDiffuseGF3), (const GLubyte *) vpDiffuseGF3);
qglGenProgramsNV( 1, &specularalias_program_object);
qglLoadProgramNV( GL_VERTEX_PROGRAM_NV, specularalias_program_object,
strlen(vpSpecularAliasGF3), (const GLubyte *) vpSpecularAliasGF3);
if ( (errCode = glGetError()) != GL_NO_ERROR ) {
errString = gluErrorString( errCode );
// glGetIntegerv( GL_PROGRAM_ERROR_POSITION_ARB, &errPos);
glGetIntegerv( GL_PROGRAM_ERROR_POSITION_NV, &errPos);
Con_Printf("LoadVertexProgram: %s\n", errString);
Con_Printf("error is located at line: %d\n", errPos);
exit( -1 );
} else {
Con_Printf("VertexProgram loaded\n");
}
// Track the concatenation of the modelview and projection matrix in registers 0-3.
qglTrackMatrixNV( GL_VERTEX_PROGRAM_NV, 0, GL_MODELVIEW_PROJECTION_NV, GL_IDENTITY_NV );
// Track the texture unit 3 maxtix in registers 4-7
qglTrackMatrixNV( GL_VERTEX_PROGRAM_NV, 4, GL_TEXTURE3_ARB, GL_IDENTITY_NV );
//store 0.5 0.5 0.5 0.5 in register 8
qglProgramParameter4fNV( GL_VERTEX_PROGRAM_NV, 20, 0.5, 0.5, 0.5, 0.5);
//bind the correct stuff to the bump mapping driver
gl_bumpdriver.drawSurfaceListBase = GF3_drawSurfaceListBase;
gl_bumpdriver.drawSurfaceListBump = GF3_drawSurfaceListBump;
gl_bumpdriver.drawTriangleListBase = GF3_drawTriangleListBase;
gl_bumpdriver.drawTriangleListBump = GF3_drawTriangleListBump;
gl_bumpdriver.getDriverMem = GF3_getDriverMem;
gl_bumpdriver.freeAllDriverMem = GF3_freeAllDriverMem;
gl_bumpdriver.freeDriver = GF3_freeDriver;
}
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