diff options
Diffstat (limited to 'code/renderer/tr_shade.c')
| -rw-r--r-- | code/renderer/tr_shade.c | 124 |
1 files changed, 58 insertions, 66 deletions
diff --git a/code/renderer/tr_shade.c b/code/renderer/tr_shade.c index f85d336..838e25d 100644 --- a/code/renderer/tr_shade.c +++ b/code/renderer/tr_shade.c @@ -473,54 +473,73 @@ static void ProjectDlightTexture( void ) { floatColorVec0 = vec_perm(floatColorVec0,floatColorVec0,floatColorVecPerm); #endif for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) { + int clip = 0; #if idppc_altivec +#define DIST0 dist0 +#define DIST1 dist1 +#define DIST2 dist2 +#define TEXCOORDS0 texCoords0 +#define TEXCOORDS1 texCoords1 vec_t dist0, dist1, dist2; + + dist0 = origin0 - tess.xyz[i][0]; + dist1 = origin1 - tess.xyz[i][1]; + dist2 = origin2 - tess.xyz[i][2]; #else +#define DIST0 dist[0] +#define DIST1 dist[1] +#define DIST2 dist[2] +#define TEXCOORDS0 texCoords[0] +#define TEXCOORDS1 texCoords[1] vec3_t dist; + + VectorSubtract( origin, tess.xyz[i], dist ); #endif - int clip; backEnd.pc.c_dlightVertexes++; -#if idppc_altivec - //VectorSubtract( origin, tess.xyz[i], dist ); - dist0 = origin0 - tess.xyz[i][0]; - dist1 = origin1 - tess.xyz[i][1]; - dist2 = origin2 - tess.xyz[i][2]; - texCoords0 = 0.5f + dist0 * scale; - texCoords1 = 0.5f + dist1 * scale; - - clip = 0; - if ( texCoords0 < 0.0f ) { - clip |= 1; - } else if ( texCoords0 > 1.0f ) { - clip |= 2; - } - if ( texCoords1 < 0.0f ) { - clip |= 4; - } else if ( texCoords1 > 1.0f ) { - clip |= 8; - } - texCoords[0] = texCoords0; - texCoords[1] = texCoords1; - - // modulate the strength based on the height and color - if ( dist2 > radius ) { - clip |= 16; - modulate = 0.0f; - } else if ( dist2 < -radius ) { - clip |= 32; - modulate = 0.0f; + TEXCOORDS0 = 0.5f + DIST0 * scale; + TEXCOORDS1 = 0.5f + DIST1 * scale; + + if( !r_dlightBacks->integer && + // dist . tess.normal[i] + ( DIST0 * tess.normal[i][0] + + DIST1 * tess.normal[i][1] + + DIST2 * tess.normal[i][2] ) < 0.0f ) { + clip = 63; } else { - dist2 = Q_fabs(dist2); - if ( dist2 < radius * 0.5f ) { - modulate = 1.0f; + if ( TEXCOORDS0 < 0.0f ) { + clip |= 1; + } else if ( TEXCOORDS0 > 1.0f ) { + clip |= 2; + } + if ( TEXCOORDS1 < 0.0f ) { + clip |= 4; + } else if ( TEXCOORDS1 > 1.0f ) { + clip |= 8; + } + texCoords[0] = TEXCOORDS0; + texCoords[1] = TEXCOORDS1; + + // modulate the strength based on the height and color + if ( DIST2 > radius ) { + clip |= 16; + modulate = 0.0f; + } else if ( DIST2 < -radius ) { + clip |= 32; + modulate = 0.0f; } else { - modulate = 2.0f * (radius - dist2) * scale; + DIST2 = Q_fabs(DIST2); + if ( DIST2 < radius * 0.5f ) { + modulate = 1.0f; + } else { + modulate = 2.0f * (radius - DIST2) * scale; + } } } clipBits[i] = clip; +#if idppc_altivec modulateVec = vec_ld(0,(float *)&modulate); modulateVec = vec_perm(modulateVec,modulateVec,modulatePerm); colorVec = vec_madd(floatColorVec0,modulateVec,zero); @@ -530,44 +549,17 @@ static void ProjectDlightTexture( void ) { colorChar = vec_sel(colorChar,vSel,vSel); // RGBARGBARGBARGBA replace alpha with 255 vec_ste((vector unsigned int)colorChar,0,(unsigned int *)colors); // store color #else - VectorSubtract( origin, tess.xyz[i], dist ); - texCoords[0] = 0.5f + dist[0] * scale; - texCoords[1] = 0.5f + dist[1] * scale; - - clip = 0; - if ( texCoords[0] < 0.0f ) { - clip |= 1; - } else if ( texCoords[0] > 1.0f ) { - clip |= 2; - } - if ( texCoords[1] < 0.0f ) { - clip |= 4; - } else if ( texCoords[1] > 1.0f ) { - clip |= 8; - } - // modulate the strength based on the height and color - if ( dist[2] > radius ) { - clip |= 16; - modulate = 0.0f; - } else if ( dist[2] < -radius ) { - clip |= 32; - modulate = 0.0f; - } else { - dist[2] = Q_fabs(dist[2]); - if ( dist[2] < radius * 0.5f ) { - modulate = 1.0f; - } else { - modulate = 2.0f * (radius - dist[2]) * scale; - } - } - clipBits[i] = clip; - colors[0] = myftol(floatColor[0] * modulate); colors[1] = myftol(floatColor[1] * modulate); colors[2] = myftol(floatColor[2] * modulate); colors[3] = 255; #endif } +#undef DIST0 +#undef DIST1 +#undef DIST2 +#undef TEXCOORDS0 +#undef TEXCOORDS1 // build a list of triangles that need light numIndexes = 0; |