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ref_gl: implement color-modulate overbrigths with gl_vbo using texture GL_COMBINE

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This commit is contained in:
mittorn 2024-02-21 21:07:54 +03:00
parent abdff6eff6
commit 6c77608c34
4 changed files with 24 additions and 5 deletions
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1
ref/gl/gl_local.h
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@ -780,6 +780,7 @@ extern convar_t r_traceglow;
extern convar_t r_vbo;
extern convar_t r_vbo_dlightmode;
extern convar_t r_vbo_detail;
extern convar_t r_vbo_overbrightmode;
extern convar_t r_studio_sort_textures;
extern convar_t r_studio_drawelements;
extern convar_t r_ripple;

2
ref/gl/gl_opengl.c
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@ -32,6 +32,7 @@ CVAR_DEFINE_AUTO( gl_round_down, "2", FCVAR_GLCONFIG|FCVAR_READ_ONLY, "round tex
CVAR_DEFINE( r_vbo, "gl_vbo", "0", FCVAR_ARCHIVE, "draw world using VBO (known to be glitchy)" );
CVAR_DEFINE( r_vbo_detail, "gl_vbo_detail", "0", FCVAR_ARCHIVE, "detail vbo mode (0: disable, 1: multipass, 2: singlepass, broken decal dlights)" );
CVAR_DEFINE( r_vbo_dlightmode, "gl_vbo_dlightmode", "1", FCVAR_ARCHIVE, "vbo dlight rendering mode (0-1)" );
CVAR_DEFINE( r_vbo_overbrightmode, "gl_vbo_overbrightmode", "0", FCVAR_ARCHIVE, "vbo overbright rendering mode (0-1)" );
CVAR_DEFINE_AUTO( r_ripple, "0", FCVAR_GLCONFIG, "enable software-like water texture ripple simulation" );
CVAR_DEFINE_AUTO( r_ripple_updatetime, "0.05", FCVAR_GLCONFIG, "how fast ripple simulation is" );
CVAR_DEFINE_AUTO( r_ripple_spawntime, "0.1", FCVAR_GLCONFIG, "how fast new ripples spawn" );
@ -1248,6 +1249,7 @@ static void R_CheckVBO( void )
gEngfuncs.Cvar_RegisterVariable( &r_vbo );
gEngfuncs.Cvar_RegisterVariable( &r_vbo_dlightmode );
gEngfuncs.Cvar_RegisterVariable( &r_vbo_overbrightmode );
gEngfuncs.Cvar_RegisterVariable( &r_vbo_detail );
}

3
ref/gl/gl_rmain.c
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@ -1011,10 +1011,11 @@ static void R_CheckGamma( void )
ClearBits( gl_overbright.flags, FCVAR_CHANGED );
}
if( gl_overbright.value && FBitSet( r_vbo.flags, FCVAR_CHANGED ))
if( gl_overbright.value && ( FBitSet( r_vbo.flags, FCVAR_CHANGED ) || FBitSet( r_vbo_overbrightmode.flags, FCVAR_CHANGED ) ) )
{
rebuild = true;
ClearBits( r_vbo.flags, FCVAR_CHANGED );
ClearBits( r_vbo_overbrightmode.flags, FCVAR_CHANGED );
}
if( rebuild )

23
ref/gl/gl_rsurf.c
View File

@ -718,7 +718,7 @@ static void R_BuildLightMap( msurface_t *surf, byte *dest, int stride, qboolean
tmax = ( info->lightextents[1] / sample_size ) + 1;
size = smax * tmax;
if( gl_overbright.value )
lightscale = r_vbo.value ? 171 : 256;
lightscale = (r_vbo.value && !r_vbo_overbrightmode.value) ? 171 : 256;
else lightscale = ( pow( 2.0f, 1.0f / v_lightgamma->value ) * 256 ) + 0.5;
lm = surf->samples;
@ -2189,15 +2189,30 @@ static void R_SetLightmap( void )
if( gl_overbright.value )
{
// GLfloat color[4] = { 128.0f / 192.0f, 128.0f / 192.0f, 128.0f / 192.0f, 1.0f };
if( r_vbo_overbrightmode.value == 1 )
{
GLfloat color[4] = { 128.0f / 192.0f, 128.0f / 192.0f, 128.0f / 192.0f, 1.0f };
int tmu = glState.activeTMU;
GL_SelectTexture( tmu - 1 );
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB );
pglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE );
pglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_CONSTANT_ARB );
pglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR );
pglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR );
pglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, GL_SRC_COLOR );
pglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE );
// doesn't work here for some reason
pglTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color );
GL_SelectTexture( tmu );
}
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB );
pglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE );
pglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS_ARB );
pglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE );
pglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE );
pglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS_ARB );
pglTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 2 );
// doesn't work here for some reason
// pglTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color );
}
else
{