X-Git-Url: https://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=r_light.c;h=fb9a337c1aa4de46fdbc362dfe44400486b3f200;hp=6860122a592f58a1ebd239f4544e43dc4969dc86;hb=e8258ac9cb094cb3f1f61335c06220fd148043a0;hpb=ae9ed9b6acd2b4f0052ae163904b13506a1199a0 diff --git a/r_light.c b/r_light.c index 6860122a..fb9a337c 100644 --- a/r_light.c +++ b/r_light.c @@ -20,13 +20,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // r_light.c #include "quakedef.h" +#include "cl_collision.h" rdlight_t r_dlight[MAX_DLIGHTS]; int r_numdlights = 0; cvar_t r_lightmodels = {CVAR_SAVE, "r_lightmodels", "1"}; cvar_t r_vismarklights = {0, "r_vismarklights", "1"}; -//cvar_t r_lightmodelhardness = {CVAR_SAVE, "r_lightmodelhardness", "1"}; static rtexture_t *lightcorona; static rtexturepool_t *lighttexturepool; @@ -67,7 +67,6 @@ void r_light_newmap(void) void R_Light_Init(void) { Cvar_RegisterVariable(&r_lightmodels); - //Cvar_RegisterVariable(&r_lightmodelhardness); Cvar_RegisterVariable(&r_vismarklights); R_RegisterModule("R_Light", r_light_start, r_light_shutdown, r_light_newmap); } @@ -170,10 +169,9 @@ void R_DrawCoronas(void) { // trace to a point just barely closer to the eye VectorSubtract(rd->origin, vpn, diff); - if (TraceLine(r_origin, diff, NULL, NULL, 0, true) == 1) + if (CL_TraceLine(r_origin, diff, NULL, NULL, 0, true) == 1) { scale = 1.0f / 262144.0f; - //scale = 64.0f / (DotProduct(diff,diff) + 1024.0f); m.cr = rd->light[0] * scale; m.cg = rd->light[1] * scale; m.cb = rd->light[2] * scale; @@ -294,65 +292,12 @@ loc0: if (dist2 > maxdist) continue; - - /* - d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0]; - - if (d < 0) - { - dist2 += d * d; - if (dist2 >= maxdist) - continue; - } - else - { - d -= surf->extents[0] + 16; - if (d > 0) - { - dist2 += d * d; - if (dist2 >= maxdist) - continue; - } - } - - d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1]; - - if (d < 0) - { - dist2 += d * d; - if (dist2 >= maxdist) - continue; - } - else - { - d -= surf->extents[1] + 16; - if (d > 0) - { - dist2 += d * d; - if (dist2 >= maxdist) - continue; - } - } - */ - if (surf->dlightframe != r_framecount) // not dynamic until now { surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0; surf->dlightframe = r_framecount; } surf->dlightbits[bitindex] |= bit; - - /* - if (((surf->flags & SURF_PLANEBACK) == 0) == ((PlaneDist(lightorigin, surf->plane)) >= surf->plane->dist)) - { - if (surf->dlightframe != r_framecount) // not dynamic until now - { - surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0; - surf->dlightframe = r_framecount; - } - surf->dlightbits[bitindex] |= bit; - } - */ } if (node->children[0]->contents >= 0) @@ -376,15 +321,6 @@ loc0: } } -/* -static void R_NoVisMarkLights (rdlight_t *rd, int bit, int bitindex) -{ - vec3_t lightorigin; - softwareuntransform(rd->origin, lightorigin); - - R_OldMarkLights(lightorigin, rd, bit, bitindex, currentrenderentity->model->nodes + currentrenderentity->model->hulls[0].firstclipnode); -} -*/ static void R_VisMarkLights (rdlight_t *rd, int bit, int bitindex) { @@ -493,45 +429,6 @@ static void R_VisMarkLights (rdlight_t *rd, int bit, int bitindex) impact[1] = rd->origin[1] - surf->plane->normal[1] * dist; impact[2] = rd->origin[2] - surf->plane->normal[2] * dist; -#if 0 - d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0]; - if (d < 0) - { - dist2 += d * d; - if (dist2 > maxdist) - continue; - } - else - { - d -= surf->extents[0]; - if (d < 0) - { - dist2 += d * d; - if (dist2 > maxdist) - continue; - } - } - - d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1]; - if (d < 0) - { - dist2 += d * d; - if (dist2 > maxdist) - continue; - } - else - { - d -= surf->extents[1]; - if (d < 0) - { - dist2 += d * d; - if (dist2 > maxdist) - continue; - } - } - -#else - impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0]; d = bound(0, impacts, surf->extents[0] + 16) - impacts; dist2 += d * d; @@ -544,8 +441,6 @@ static void R_VisMarkLights (rdlight_t *rd, int bit, int bitindex) if (dist2 > maxdist) continue; -#endif - if (surf->dlightframe != r_framecount) // not dynamic until now { surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0; @@ -607,11 +502,6 @@ loc0: goto loc0; } // found an intersection -// mid = startz + (endz - startz) * (startz - node->plane->dist) / (startz - endz); -// mid = startz + distz * (startz - node->plane->dist) / (-distz); -// mid = startz + (-(startz - node->plane->dist)); -// mid = startz - (startz - node->plane->dist); -// mid = startz + node->plane->dist - startz; mid = node->plane->dist; break; default: @@ -625,8 +515,6 @@ loc0: goto loc0; } // found an intersection -// mid = startz + (endz - startz) * ((front - node->plane->dist) / ((front - node->plane->dist) - (back - node->plane->dist))); -// mid = startz + (endz - startz) * ((front - node->plane->dist) / (front - back)); mid = startz + distz * (front - node->plane->dist) / (front - back); break; } @@ -679,33 +567,38 @@ loc0: lightmap += size3; } - /* - // LordHavoc: here's the readable version of the interpolation - // code, not quite as easy for the compiler to optimize... - - // dsfrac is the X position in the lightmap pixel, * 16 - // dtfrac is the Y position in the lightmap pixel, * 16 - // r00 is top left corner, r01 is top right corner - // r10 is bottom left corner, r11 is bottom right corner - // g and b are the same layout. - // r0 and r1 are the top and bottom intermediate results - - // first we interpolate the top two points, to get the top - // edge sample - r0 = (((r01-r00) * dsfrac) >> 4) + r00; - g0 = (((g01-g00) * dsfrac) >> 4) + g00; - b0 = (((b01-b00) * dsfrac) >> 4) + b00; - // then we interpolate the bottom two points, to get the - // bottom edge sample - r1 = (((r11-r10) * dsfrac) >> 4) + r10; - g1 = (((g11-g10) * dsfrac) >> 4) + g10; - b1 = (((b11-b10) * dsfrac) >> 4) + b10; - // then we interpolate the top and bottom samples to get the - // middle sample (the one which was requested) - r = (((r1-r0) * dtfrac) >> 4) + r0; - g = (((g1-g0) * dtfrac) >> 4) + g0; - b = (((b1-b0) * dtfrac) >> 4) + b0; - */ +/* +LordHavoc: here's the readable version of the interpolation +code, not quite as easy for the compiler to optimize... + +dsfrac is the X position in the lightmap pixel, * 16 +dtfrac is the Y position in the lightmap pixel, * 16 +r00 is top left corner, r01 is top right corner +r10 is bottom left corner, r11 is bottom right corner +g and b are the same layout. +r0 and r1 are the top and bottom intermediate results + +first we interpolate the top two points, to get the top +edge sample + + r0 = (((r01-r00) * dsfrac) >> 4) + r00; + g0 = (((g01-g00) * dsfrac) >> 4) + g00; + b0 = (((b01-b00) * dsfrac) >> 4) + b00; + +then we interpolate the bottom two points, to get the +bottom edge sample + + r1 = (((r11-r10) * dsfrac) >> 4) + r10; + g1 = (((g11-g10) * dsfrac) >> 4) + g10; + b1 = (((b11-b10) * dsfrac) >> 4) + b10; + +then we interpolate the top and bottom samples to get the +middle sample (the one which was requested) + + r = (((r1-r0) * dtfrac) >> 4) + r0; + g = (((g1-g0) * dtfrac) >> 4) + g0; + b = (((b1-b0) * dtfrac) >> 4) + b0; +*/ color[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f); color[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f); @@ -720,7 +613,6 @@ loc0: startz = mid; distz = endz - startz; goto loc0; -// return RecursiveLightPoint (color, node->children[side ^ 1], x, y, mid, endz); } } @@ -759,7 +651,7 @@ void R_CompleteLightPoint (vec3_t color, vec3_t p, int dynamic, mleaf_t *leaf) f = (1.0f / f) - sl->subtract; if (f > 0) { - if (TraceLine(p, sl->origin, NULL, NULL, 0, false) == 1) + if (CL_TraceLine(p, sl->origin, NULL, NULL, 0, false) == 1) { f *= d_lightstylevalue[sl->style] * (1.0f / 32768.0f); VectorMA(color, f, sl->light, color); @@ -832,11 +724,11 @@ void R_ModelLightPoint (vec3_t color, vec3_t p, int *dlightbits) void R_LightModel(int numverts, float colorr, float colorg, float colorb, int worldcoords) { int i, j, nearlights = 0; - float color[3], basecolor[3], v[3], t, *av, *avn, *avc, a, number, f/*, hardness, hardnessoffset*/, dist2; + float color[3], basecolor[3], v[3], t, *av, *avn, *avc, a, number, f, dist2, mscale; struct { vec3_t origin; - vec_t cullradius2; + //vec_t cullradius2; vec3_t light; vec_t lightsubtract; vec_t falloff; @@ -844,7 +736,6 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo } nearlight[MAX_DLIGHTS], *nl; int modeldlightbits[8]; - //staticlight_t *sl; mlight_t *sl; a = currentrenderentity->alpha; if (currentrenderentity->effects & EF_FULLBRIGHT) @@ -860,32 +751,9 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo R_ModelLightPoint(basecolor, currentrenderentity->origin, modeldlightbits); nl = &nearlight[0]; - /* - // this code is unused for now - for (i = 0, sl = staticlight;i < staticlights && nearlights < MAX_DLIGHTS;i++, sl++) - { - if (TraceLine(currentrenderentity->origin, sl->origin, NULL, NULL, 0) == 1) - { - nl->fadetype = sl->fadetype; - nl->distancescale = sl->distancescale; - nl->radius = sl->radius; - // transform the light into the model's coordinate system - if (worldcoords) - VectorCopy(sl->origin, nl->origin); - else - softwareuntransform(sl->origin, nl->origin); - VectorCopy(sl->color, nl->light); - nl->cullradius2 = 99999999; - nl->lightsubtract = 0; - nl++; - nearlights++; - } - } - */ - // this code is unused for now for (i = 0, sl = cl.worldmodel->lights;i < cl.worldmodel->numlights && nearlights < MAX_DLIGHTS;i++, sl++) { - if (TraceLine(currentrenderentity->origin, sl->origin, NULL, NULL, 0, false) == 1) + if (CL_TraceLine(currentrenderentity->origin, sl->origin, NULL, NULL, 0, false) == 1) { nl->falloff = sl->falloff; // transform the light into the model's coordinate system @@ -895,7 +763,7 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo softwareuntransform(sl->origin, nl->origin); f = d_lightstylevalue[sl->style] * (1.0f / 32768.0f); VectorScale(sl->light, f, nl->light); - nl->cullradius2 = 99999999; + //nl->cullradius2 = 99999999; nl->lightsubtract = sl->subtract; nl->offset = sl->distbias; nl++; @@ -914,23 +782,20 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo } else { - // convert 0-255 radius coloring to 0-1, while also amplifying the brightness by 16 - //if (TraceLine(currentrenderentity->origin, r_dlight[i].origin, NULL, NULL, 0) == 1) - { - // transform the light into the model's coordinate system - if (worldcoords) - VectorCopy(r_dlight[i].origin, nl->origin); - else - softwareuntransform(r_dlight[i].origin, nl->origin); - nl->cullradius2 = r_dlight[i].cullradius2; - nl->light[0] = r_dlight[i].light[0] * colorr; - nl->light[1] = r_dlight[i].light[1] * colorg; - nl->light[2] = r_dlight[i].light[2] * colorb; - nl->lightsubtract = r_dlight[i].lightsubtract; - nl->offset = LIGHTOFFSET; - nl++; - nearlights++; - } + // transform the light into the model's coordinate system + if (worldcoords) + VectorCopy(r_dlight[i].origin, nl->origin); + else + softwareuntransform(r_dlight[i].origin, nl->origin); + // scale the cullradius so culling by distance is done before mscale is applied + //nl->cullradius2 = r_dlight[i].cullradius2 * currentrenderentity->scale * currentrenderentity->scale; + nl->light[0] = r_dlight[i].light[0] * colorr; + nl->light[1] = r_dlight[i].light[1] * colorg; + nl->light[2] = r_dlight[i].light[2] * colorb; + nl->lightsubtract = r_dlight[i].lightsubtract; + nl->offset = LIGHTOFFSET; + nl++; + nearlights++; } } } @@ -941,12 +806,13 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo basecolor[1] *= colorg; basecolor[2] *= colorb; avc = aliasvertcolor; + // scale of the model's coordinate space, to alter light attenuation to match + // make the mscale squared so it can scale the squared distance results + mscale = currentrenderentity->scale * currentrenderentity->scale; if (nearlights) { av = aliasvert; avn = aliasvertnorm; - //hardness = r_lightmodelhardness.value; - //hardnessoffset = (1.0f - hardness); for (i = 0;i < numverts;i++) { VectorCopy(basecolor, color); @@ -955,25 +821,22 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo // distance attenuation VectorSubtract(nl->origin, av, v); dist2 = DotProduct(v,v); - if (dist2 < nl->cullradius2) + f = (1.0f / (dist2 * mscale + nl->offset)) - nl->lightsubtract; + if (f > 0) { - f = (1.0f / (dist2 + nl->offset)) - nl->lightsubtract; + // directional shading +#if SLOWMATH + t = 1.0f / sqrt(dist2); +#else + number = DotProduct(v, v); + *((int *)&t) = 0x5f3759df - ((* (int *) &number) >> 1); + t = t * (1.5f - (number * 0.5f * t * t)); +#endif + // DotProduct(avn,v) * t is dotproduct with a normalized v, + // the hardness variables are for backlighting/shinyness + f *= DotProduct(avn,v) * t * 0.5f + 0.5f;// * hardness + hardnessoffset; if (f > 0) - { - // directional shading - #if SLOWMATH - t = 1.0f / sqrt(dist2); - #else - number = DotProduct(v, v); - *((int *)&t) = 0x5f3759df - ((* (int *) &number) >> 1); - t = t * (1.5f - (number * 0.5f * t * t)); - #endif - // DotProduct(avn,v) * t is dotproduct with a normalized v, - // the hardness variables are for backlighting/shinyness - f *= DotProduct(avn,v) * t;// * hardness + hardnessoffset; - if (f > 0) - VectorMA(color, f, nl->light, color); - } + VectorMA(color, f, nl->light, color); } } @@ -994,3 +857,4 @@ void R_LightModel(int numverts, float colorr, float colorg, float colorb, int wo } } } +