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added modifiers for specularmap creation

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This commit is contained in:
CJ AYHO 2013-08-14 15:40:46 +03:00
parent 0aca42a0d8
commit f2ac70af17
1 changed files with 24 additions and 16 deletions
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40
neo/renderer/Image_init.cpp
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@ -70,6 +70,8 @@ idCVar idImageManager::image_downSizeSpecularLimit( "image_downSizeSpecularLimit
idCVar idImageManager::image_downSizeBumpLimit( "image_downSizeBumpLimit", "128", CVAR_RENDERER | CVAR_ARCHIVE, "controls normal map downsample limit" );
idCVar idImageManager::image_ignoreHighQuality( "image_ignoreHighQuality", "0", CVAR_RENDERER | CVAR_ARCHIVE, "ignore high quality setting on materials" );
idCVar idImageManager::image_downSizeLimit( "image_downSizeLimit", "256", CVAR_RENDERER | CVAR_ARCHIVE, "controls diffuse map downsample limit" );
idCVar r_phongExponent( "r_phongExponent", "3", CVAR_RENDERER | CVAR_ARCHIVE, "controls falloff of specular texture" );
idCVar r_phongSpecular( "r_phongSpecular", "0.7", CVAR_RENDERER | CVAR_ARCHIVE, "controls brightness of specular texture" );
// do this with a pointer, in case we want to make the actual manager
// a private virtual subclass
idImageManager imageManager;
@ -155,26 +157,32 @@ Creates a ramp that matches our fudged specular calculation
*/
static void R_SpecularTableImage( idImage *image ) {
int x;
byte data[256][4];
byte data[1024][4];
for (x=0 ; x<256 ; x++) {
float f = x/255.f;
#if 0
f = pow(f, 16);
#else
// this is the behavior of the hacked up fragment programs that
// can't really do a power function
f = (f-0.75)*4;
if ( f < 0 ) {
for (x=0 ; x<1024 ; ++x)
{
float f = x/512.f;
f = ( ( pow( 10, f * r_phongExponent.GetFloat() ) -1 ) / 100 ) / pow( 10, r_phongExponent.GetFloat() );
if( f > 1 )
{
f = 1;
}
if( f < 0 )
{
f = 0;
}
f = f * f;
#endif
int b = (int)(f * 255);
data[x][0] =
data[x][1] =
data[x][2] =
f *= r_phongSpecular.GetFloat();
byte b = (byte)(f * 255);
data[x][0] = b;
data[x][1] = b;
data[x][2] = b;
data[x][3] = b;
}