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authorTavian Barnes <tavianator@gmail.com>2010-01-06 13:43:14 -0500
committerTavian Barnes <tavianator@gmail.com>2010-01-06 13:43:14 -0500
commit4e2a6e40a77068492e3b63b84a18d0cc7f003fb7 (patch)
tree3456c6c4426092f40c039a48c82a161e49419bf9 /libdimension/finishes.c
parent2fab7d7ff6b926e79c35be3e59b42e733f8bf33c (diff)
downloaddimension-4e2a6e40a77068492e3b63b84a18d0cc7f003fb7.tar.xz
Split up objects, finishes, pigments, lights, cameras, etc.
Diffstat (limited to 'libdimension/finishes.c')
-rw-r--r--libdimension/finishes.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/libdimension/finishes.c b/libdimension/finishes.c
deleted file mode 100644
index a1b10e7..0000000
--- a/libdimension/finishes.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*************************************************************************
- * Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
- * *
- * This file is part of The Dimension Library. *
- * *
- * The Dimension Library is free software; you can redistribute it and/ *
- * or modify it under the terms of the GNU Lesser General Public License *
- * as published by the Free Software Foundation; either version 3 of the *
- * License, or (at your option) any later version. *
- * *
- * The Dimension Library 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 *
- * Lesser General Public License for more details. *
- * *
- * You should have received a copy of the GNU Lesser General Public *
- * License along with this program. If not, see *
- * <http://www.gnu.org/licenses/>. *
- *************************************************************************/
-
-#include "dimension.h"
-#include <stdlib.h> /* For malloc */
-#include <math.h>
-
-/*
- * Finish combinations
- */
-
-static dmnsn_color
-dmnsn_finish_combination_fn(const dmnsn_finish *finish,
- dmnsn_color light, dmnsn_color color,
- dmnsn_vector ray, dmnsn_vector normal,
- dmnsn_vector viewer)
-{
- dmnsn_finish **params = finish->ptr;
- if (params[0]->finish_fn && params[1]->finish_fn) {
- return dmnsn_color_add((*params[0]->finish_fn)(params[0], light, color, ray,
- normal, viewer),
- (*params[1]->finish_fn)(params[1], light, color, ray,
- normal, viewer));
- } else if (params[0]->finish_fn) {
- return (*params[0]->finish_fn)(params[0], light, color, ray,
- normal, viewer);
- } else if (params[1]->finish_fn) {
- return (*params[1]->finish_fn)(params[1], light, color, ray,
- normal, viewer);
- } else {
- return dmnsn_black;
- }
-}
-
-static dmnsn_color
-dmnsn_finish_combination_ambient_fn(const dmnsn_finish *finish,
- dmnsn_color pigment)
-{
- dmnsn_finish **params = finish->ptr;
- if (params[0]->ambient_fn && params[1]->ambient_fn) {
- return dmnsn_color_add((*params[0]->ambient_fn)(params[0], pigment),
- (*params[1]->ambient_fn)(params[1], pigment));
- } else if (params[0]->ambient_fn) {
- return (*params[0]->ambient_fn)(params[0], pigment);
- } else if (params[1]->ambient_fn) {
- return (*params[1]->ambient_fn)(params[1], pigment);
- } else {
- return dmnsn_black;
- }
-}
-
-static void
-dmnsn_finish_combination_free_fn(void *ptr)
-{
- dmnsn_finish **params = ptr;
- dmnsn_delete_finish(params[0]);
- dmnsn_delete_finish(params[1]);
- free(ptr);
-}
-
-dmnsn_finish *
-dmnsn_new_finish_combination(dmnsn_finish *f1, dmnsn_finish *f2)
-{
- if (f1 && f2) {
- dmnsn_finish *finish = dmnsn_new_finish();
- if (finish) {
- dmnsn_finish **params = malloc(2*sizeof(dmnsn_finish *));
- if (!params) {
- dmnsn_delete_finish(finish);
- dmnsn_delete_finish(f2);
- dmnsn_delete_finish(f1);
- return NULL;
- }
-
- params[0] = f1;
- params[1] = f2;
-
- finish->ptr = params;
- finish->finish_fn = &dmnsn_finish_combination_fn;
- finish->ambient_fn = &dmnsn_finish_combination_ambient_fn;
- finish->free_fn = &dmnsn_finish_combination_free_fn;
-
- return finish;
- } else {
- dmnsn_delete_finish(f2);
- dmnsn_delete_finish(f1);
- }
- } else if (f1) {
- dmnsn_delete_finish(f1);
- } else if (f2) {
- dmnsn_delete_finish(f2);
- }
-
- return NULL;
-}
-
-/*
- * Ambient finish
- */
-
-static dmnsn_color
-dmnsn_ambient_finish_fn(const dmnsn_finish *finish, dmnsn_color pigment)
-{
- dmnsn_color *ambient = finish->ptr;
- return dmnsn_color_illuminate(*ambient, pigment);
-}
-
-dmnsn_finish *
-dmnsn_new_ambient_finish(dmnsn_color ambient)
-{
- dmnsn_finish *finish = dmnsn_new_finish();
- if (finish) {
- dmnsn_color *param = malloc(sizeof(dmnsn_color));
- if (!param) {
- dmnsn_delete_finish(finish);
- return NULL;
- }
-
- *param = ambient;
- finish->ptr = param;
- finish->ambient_fn = &dmnsn_ambient_finish_fn;
- finish->free_fn = &free;
- }
- return finish;
-}
-
-/*
- * Diffuse finish
- */
-
-static dmnsn_color
-dmnsn_diffuse_finish_fn(const dmnsn_finish *finish,
- dmnsn_color light, dmnsn_color color,
- dmnsn_vector ray, dmnsn_vector normal,
- dmnsn_vector viewer)
-{
- double *diffuse = finish->ptr;
- double diffuse_factor = (*diffuse)*dmnsn_vector_dot(ray, normal);
- return dmnsn_color_mul(diffuse_factor, dmnsn_color_illuminate(light, color));
-}
-
-dmnsn_finish *
-dmnsn_new_diffuse_finish(double diffuse)
-{
- dmnsn_finish *finish = dmnsn_new_finish();
- if (finish) {
- double *param = malloc(sizeof(double));
- if (!param) {
- dmnsn_delete_finish(finish);
- return NULL;
- }
-
- *param = diffuse;
-
- finish->ptr = param;
- finish->finish_fn = &dmnsn_diffuse_finish_fn;
- finish->free_fn = &free;
- }
- return finish;
-}
-
-/*
- * Phong finish
- */
-
-static dmnsn_color
-dmnsn_phong_finish_fn(const dmnsn_finish *finish,
- dmnsn_color light, dmnsn_color color,
- dmnsn_vector ray, dmnsn_vector normal,
- dmnsn_vector viewer)
-{
- double *params = finish->ptr;
-
- double specular = params[0];
- double exp = params[1];
-
- dmnsn_vector proj = dmnsn_vector_mul(2*dmnsn_vector_dot(ray, normal), normal);
- dmnsn_vector reflected = dmnsn_vector_sub(proj, ray);
-
- double specular_factor = pow(dmnsn_vector_dot(reflected, viewer), exp);
- return dmnsn_color_mul(specular*specular_factor, light);
-}
-
-/* A phong finish */
-dmnsn_finish *
-dmnsn_new_phong_finish(double specular, double exp)
-{
- dmnsn_finish *finish = dmnsn_new_finish();
- if (finish) {
- double *params = malloc(2*sizeof(double));
- if (!params) {
- dmnsn_delete_finish(finish);
- return NULL;
- }
-
- params[0] = specular;
- params[1] = exp;
-
- finish->ptr = params;
- finish->finish_fn = &dmnsn_phong_finish_fn;
- finish->free_fn = &free;
- }
- return finish;
-}