rtx: add single envlight to all clusters, fix #130
If there's only one environment light, HLRAD will treat is as global sun that enlights everything. So we should add it to all light clusters, and so we do.
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@ -276,8 +276,12 @@ typedef struct {
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struct {
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int num_lights;
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vk_light_entity_t lights[256];
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int single_environment_index;
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} g_light_entities;
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enum { NoEnvironmentLights = -1, MoreThanOneEnvironmentLight = -2 };
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static void weirdGoldsrcLightScaling( vec3_t intensity ) {
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float l1 = Q_max( intensity[0], Q_max( intensity[1], intensity[2] ) );
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l1 = l1 * l1 / 10;
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@ -323,7 +327,8 @@ static void parseStopDot( const entity_props_t *props, vk_light_entity_t *le) {
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}
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static void addLightEntity( const entity_props_t *props, unsigned have_fields ) {
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vk_light_entity_t *le = g_light_entities.lights + g_light_entities.num_lights;
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const int index = g_light_entities.num_lights;
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vk_light_entity_t *le = g_light_entities.lights + index;
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unsigned expected_fields = 0;
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if (g_light_entities.num_lights == ARRAYSIZE(g_light_entities.lights)) {
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@ -355,6 +360,12 @@ static void addLightEntity( const entity_props_t *props, unsigned have_fields )
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le->type = LightTypeEnvironment;
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parseAngles(props, le);
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parseStopDot(props, le);
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if (g_light_entities.single_environment_index == NoEnvironmentLights) {
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g_light_entities.single_environment_index = index;
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} else {
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g_light_entities.single_environment_index = MoreThanOneEnvironmentLight;
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}
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break;
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}
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@ -400,6 +411,7 @@ static void parseStaticLightEntities( void ) {
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ASSERT(world);
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g_light_entities.num_lights = 0;
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g_light_entities.single_environment_index = NoEnvironmentLights;
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pos = world->entities;
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//gEngine.Con_Reportf("ENTITIES: %s\n", pos);
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@ -992,6 +1004,37 @@ fin:
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return retval;
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}
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static void addLightIndexToleaf( const mleaf_t *leaf, int index ) {
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const int min_x = floorf(leaf->minmaxs[0] / LIGHT_GRID_CELL_SIZE);
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const int min_y = floorf(leaf->minmaxs[1] / LIGHT_GRID_CELL_SIZE);
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const int min_z = floorf(leaf->minmaxs[2] / LIGHT_GRID_CELL_SIZE);
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const int max_x = ceilf(leaf->minmaxs[3] / LIGHT_GRID_CELL_SIZE);
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const int max_y = ceilf(leaf->minmaxs[4] / LIGHT_GRID_CELL_SIZE);
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const int max_z = ceilf(leaf->minmaxs[5] / LIGHT_GRID_CELL_SIZE);
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for (int x = min_x; x < max_x; ++x)
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for (int y = min_y; y < max_y; ++y)
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for (int z = min_z; z < max_z; ++z) {
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const int cell[3] = {
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x - g_lights.map.grid_min_cell[0],
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y - g_lights.map.grid_min_cell[1],
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z - g_lights.map.grid_min_cell[2]
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};
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const int cell_index = computeCellIndex( cell );
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if (cell_index < 0)
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continue;
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if (clusterBitMapCheckOrSet( cell_index )) {
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if (!addLightToCell(cell_index, index)) {
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// gEngine.Con_Printf(S_ERROR "Cluster %d,%d,%d(%d) ran out of light slots\n",
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// cell[0], cell[1], cell[2], cell_index);
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}
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}
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}
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}
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static void addPointLightToClusters( int index ) {
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vk_point_light_t *const light = g_lights.point_lights + index;
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const model_t* const world = gEngine.pfnGetModelByIndex( 1 );
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@ -1005,35 +1048,17 @@ static void addPointLightToClusters( int index ) {
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clusterBitMapClear();
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for (int i = 0; i < leafs->num; ++i) {
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const mleaf_t *const leaf = world->leafs + leafs->leafs[i];
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addLightIndexToleaf( leaf, index );
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}
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}
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const int min_x = floorf(leaf->minmaxs[0] / LIGHT_GRID_CELL_SIZE);
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const int min_y = floorf(leaf->minmaxs[1] / LIGHT_GRID_CELL_SIZE);
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const int min_z = floorf(leaf->minmaxs[2] / LIGHT_GRID_CELL_SIZE);
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static void addPointLightToAllClusters( int index ) {
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const model_t* const world = gEngine.pfnGetModelByIndex( 1 );
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const int max_x = ceilf(leaf->minmaxs[3] / LIGHT_GRID_CELL_SIZE);
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const int max_y = ceilf(leaf->minmaxs[4] / LIGHT_GRID_CELL_SIZE);
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const int max_z = ceilf(leaf->minmaxs[5] / LIGHT_GRID_CELL_SIZE);
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for (int x = min_x; x < max_x; ++x)
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for (int y = min_y; y < max_y; ++y)
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for (int z = min_z; z < max_z; ++z) {
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const int cell[3] = {
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x - g_lights.map.grid_min_cell[0],
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y - g_lights.map.grid_min_cell[1],
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z - g_lights.map.grid_min_cell[2]
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};
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const int cell_index = computeCellIndex( cell );
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if (cell_index < 0)
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continue;
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if (clusterBitMapCheckOrSet( cell_index )) {
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if (!addLightToCell(cell_index, index)) {
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// gEngine.Con_Printf(S_ERROR "Cluster %d,%d,%d(%d) ran out of light slots\n",
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// cell[0], cell[1], cell[2], cell_index);
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}
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}
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}
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clusterBitMapClear();
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for (int i = 1; i < world->numleafs; ++i) {
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const mleaf_t *const leaf = world->leafs + i;
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addLightIndexToleaf( leaf, index );
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}
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}
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@ -1067,7 +1092,7 @@ static int addPointLight( const vec3_t origin, const vec3_t color, float radius,
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return index;
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}
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static int addSpotLight( const vk_light_entity_t *le, float radius, float hack_attenuation ) {
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static int addSpotLight( const vk_light_entity_t *le, float radius, float hack_attenuation, qboolean all_clusters ) {
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const int index = g_lights.num_point_lights;
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vk_point_light_t *const plight = g_lights.point_lights + index;
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@ -1097,7 +1122,11 @@ static int addSpotLight( const vk_light_entity_t *le, float radius, float hack_a
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if (le->type == LightTypeEnvironment)
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plight->flags = LightFlag_Environment;
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addPointLightToClusters( index );
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if (all_clusters)
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addPointLightToAllClusters( index );
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else
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addPointLightToClusters( index );
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g_lights.num_point_lights++;
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return index;
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}
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@ -1151,7 +1180,7 @@ void VK_LightsFrameFinalize( void ) {
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case LightTypeSpot:
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case LightTypeEnvironment:
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index = addSpotLight(le, default_radius, hack_attenuation_spot);
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index = addSpotLight(le, default_radius, hack_attenuation_spot, i == g_light_entities.single_environment_index);
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break;
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}
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