/* Lighting Effects 0.2.2 -- image filter plug-in for The Gimp program * * Copyright (C) 1996-98 Tom Bech * Copyright (C) 1996-98 Federico Mena Quintero * * E-mail: tomb@gimp.org (Tom) or quartic@gimp.org (Federico) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include "lighting_apply.h" #include "lighting_image.h" #include "lighting_main.h" #include "lighting_preview.h" #include "lighting_shade.h" #include "lighting_ui.h" #include "libgimp/stdplugins-intl.h" LightingValues mapvals; /******************/ /* Implementation */ /******************/ /*************************************/ /* Set parameters to standard values */ /*************************************/ static void set_default_settings (void) { gimp_vector3_set (&mapvals.viewpoint, 0.5, 0.5, 0.25); gimp_vector3_set (&mapvals.planenormal, 0.0, 0.0, 1.0); gimp_vector3_set (&mapvals.lightsource.position, 1.0, 0.0, 1.0); gimp_vector3_set (&mapvals.lightsource.direction, -1.0, -1.0, 1.0); gimp_rgba_set (&mapvals.lightsource.color, 1.0, 1.0, 1.0, 1.0); mapvals.lightsource.intensity = 1.0; mapvals.lightsource.type = POINT_LIGHT; mapvals.material.ambient_int = 0.3; mapvals.material.diffuse_int = 1.0; mapvals.material.diffuse_ref = 0.4; mapvals.material.specular_ref = 0.6; mapvals.material.highlight = 27.0; mapvals.pixel_treshold = 0.25; mapvals.max_depth = 3.0; mapvals.preview_zoom_factor = 1.0; mapvals.bumpmaptype = 0; mapvals.bumpmin = 0.0; mapvals.bumpmax = 0.1; mapvals.antialiasing = FALSE; mapvals.create_new_image = FALSE; mapvals.transparent_background = FALSE; mapvals.bump_mapped = FALSE; mapvals.env_mapped = FALSE; mapvals.ref_mapped = FALSE; mapvals.previewquality = FALSE; mapvals.bumpmap_id = -1; mapvals.envmap_id = -1; } static void check_drawables (void) { if (mapvals.bumpmap_id != -1 && gimp_drawable_image_id (mapvals.bumpmap_id) == -1) { mapvals.bump_mapped = FALSE; mapvals.bumpmap_id = -1; } if (mapvals.envmap_id != -1 && gimp_drawable_image_id (mapvals.envmap_id) == -1) { mapvals.env_mapped = FALSE; mapvals.envmap_id = -1; } if (mapvals.bump_mapped) { if (!gimp_drawable_is_gray (mapvals.bumpmap_id) || (gimp_drawable_width (mapvals.drawable_id) != gimp_drawable_width (mapvals.bumpmap_id)) || (gimp_drawable_height (mapvals.drawable_id) != gimp_drawable_height (mapvals.bumpmap_id))) { mapvals.bump_mapped = FALSE; mapvals.bumpmap_id = -1; } } if (mapvals.env_mapped) { if (gimp_drawable_is_gray (mapvals.envmap_id) || gimp_drawable_has_alpha (mapvals.envmap_id)) { mapvals.bump_mapped = FALSE; mapvals.bumpmap_id = -1; } } } static void query (void) { static GimpParamDef args[] = { { GIMP_PDB_INT32, "run_mode", "Interactive (0), non-interactive (1)" }, { GIMP_PDB_IMAGE, "image", "Input image" }, { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }, { GIMP_PDB_DRAWABLE, "bumpdrawable", "Bumpmap drawable (set to 0 if disabled)" }, { GIMP_PDB_DRAWABLE, "envdrawable", "Environmentmap drawable (set to 0 if disabled)" }, { GIMP_PDB_INT32, "dobumpmap", "Enable bumpmapping (TRUE/FALSE)" }, { GIMP_PDB_INT32, "doenvmap", "Enable envmapping (TRUE/FALSE)" }, { GIMP_PDB_INT32, "bumpmaptype", "Type of mapping (0=linear,1=log, 2=sinusoidal, 3=spherical)" }, { GIMP_PDB_INT32, "lighttype", "Type of lightsource (0=point,1=directional,3=spot,4=none)" }, { GIMP_PDB_COLOR, "lightcolor", "Lightsource color (r,g,b)" }, { GIMP_PDB_FLOAT, "lightposition_x", "Lightsource position (x,y,z)" }, { GIMP_PDB_FLOAT, "lightposition_y", "Lightsource position (x,y,z)" }, { GIMP_PDB_FLOAT, "lightposition_z", "Lightsource position (x,y,z)" }, { GIMP_PDB_FLOAT, "lightdirection_x", "Lightsource direction [x,y,z]" }, { GIMP_PDB_FLOAT, "lightdirection_y", "Lightsource direction [x,y,z]" }, { GIMP_PDB_FLOAT, "lightdirection_z", "Lightsource direction [x,y,z]" }, { GIMP_PDB_FLOAT, "ambient_intensity", "Material ambient intensity (0..1)" }, { GIMP_PDB_FLOAT, "diffuse_intensity", "Material diffuse intensity (0..1)" }, { GIMP_PDB_FLOAT, "diffuse_reflectivity", "Material diffuse reflectivity (0..1)" }, { GIMP_PDB_FLOAT, "specular_reflectivity", "Material specular reflectivity (0..1)" }, { GIMP_PDB_FLOAT, "highlight", "Material highlight (0..->), note: it's expotential" }, { GIMP_PDB_INT32, "antialiasing", "Apply antialiasing (TRUE/FALSE)" }, { GIMP_PDB_INT32, "newimage", "Create a new image (TRUE/FALSE)" }, { GIMP_PDB_INT32, "transparentbackground", "Make background transparent (TRUE/FALSE)" } }; gimp_install_procedure ("plug_in_lighting", "Apply various lighting effects to an image", "No help yet", "Tom Bech & Federico Mena Quintero", "Tom Bech & Federico Mena Quintero", "Version 0.2.0, March 15 1998", N_("/Filters/Light Effects/Lighting Effects..."), "RGB*", GIMP_PLUGIN, G_N_ELEMENTS (args), 0, args, NULL); } static void run (gchar *name, gint nparams, GimpParam *param, gint *nreturn_vals, GimpParam **return_vals) { static GimpParam values[1]; GimpDrawable *drawable; GimpRunMode run_mode; GimpPDBStatusType status = GIMP_PDB_SUCCESS; run_mode = param[0].data.d_int32; if (run_mode == GIMP_RUN_INTERACTIVE) { INIT_I18N_UI (); } else { INIT_I18N (); } *nreturn_vals = 1; *return_vals = values; values[0].type = GIMP_PDB_STATUS; values[0].data.d_status = status; /* Set default values */ /* ================== */ set_default_settings (); /* Possibly retrieve data */ /* ====================== */ gimp_get_data ("plug_in_lighting", &mapvals); /* Get the specified drawable */ /* ========================== */ drawable = gimp_drawable_get (param[2].data.d_drawable); mapvals.drawable_id = drawable->drawable_id; check_drawables (); if (status == GIMP_PDB_SUCCESS) { /* Make sure that the drawable is RGBA or RGB color */ /* ================================================ */ if (gimp_drawable_is_rgb (drawable->drawable_id)) { /* Set the tile cache size */ /* ======================= */ gimp_tile_cache_ntiles (TILE_CACHE_SIZE); switch (run_mode) { case GIMP_RUN_INTERACTIVE: if (main_dialog (drawable)) { compute_image (); gimp_set_data ("plug_in_lighting", &mapvals, sizeof (LightingValues)); } break; case GIMP_RUN_WITH_LAST_VALS: image_setup (drawable, FALSE); compute_image (); break; case GIMP_RUN_NONINTERACTIVE: if (nparams != 24) { status = GIMP_PDB_CALLING_ERROR; } else { mapvals.bumpmap_id = param[3].data.d_drawable; mapvals.envmap_id = param[4].data.d_drawable; mapvals.bump_mapped = (gint) param[5].data.d_int32; mapvals.env_mapped = (gint) param[6].data.d_int32; mapvals.bumpmaptype = (gint) param[7].data.d_int32; mapvals.lightsource.type = (LightType) param[8].data.d_int32; mapvals.lightsource.color = param[9].data.d_color; mapvals.lightsource.position.x = param[10].data.d_float; mapvals.lightsource.position.y = param[11].data.d_float; mapvals.lightsource.position.z = param[12].data.d_float; mapvals.lightsource.direction.x = param[13].data.d_float; mapvals.lightsource.direction.y = param[14].data.d_float; mapvals.lightsource.direction.z = param[15].data.d_float; mapvals.material.ambient_int = param[16].data.d_float; mapvals.material.diffuse_int = param[17].data.d_float; mapvals.material.diffuse_ref = param[18].data.d_float; mapvals.material.specular_ref = param[19].data.d_float; mapvals.material.highlight = param[20].data.d_float; mapvals.antialiasing = (gint) param[21].data.d_int32; mapvals.create_new_image = (gint) param[22].data.d_int32; mapvals.transparent_background = (gint) param[23].data.d_int32; check_drawables (); image_setup (drawable, FALSE); compute_image (); } default: break; } } else status = GIMP_PDB_EXECUTION_ERROR; } if (run_mode != GIMP_RUN_NONINTERACTIVE) gimp_displays_flush (); values[0].data.d_status = status; gimp_drawable_detach (drawable); if (xpostab) g_free (xpostab); if (ypostab) g_free (ypostab); } GimpPlugInInfo PLUG_IN_INFO = { NULL, /* init_proc */ NULL, /* quit_proc */ query, /* query_proc */ run, /* run_proc */ }; MAIN ()