WIP: grilles 'économes' sur les 'parois' de l'espace : première ébauche
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@ -0,0 +1,72 @@
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/*
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* Gem-graph OpenGL experiments
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*
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* Desc: GL functions
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*
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* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
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* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
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*
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* This file is part of Gem-graph.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <time.h>
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/*
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* Prints the arrows[] array
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*
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* For each arrow the following parameters are displayed :
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* - rank in the array
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* - weight (or load)
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* - coordinates in space (site, x, y, z)
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*/
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void show_arrows_array_head(int one_batch_size, long nb_batches_specified, int verbose);
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void show_one_arrow_in_array(struct arrow_t *arrows, int i);
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void show_empty_arrows_array();
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void show_arrows_array (struct arrow_t *arrows, int arrows_nb, int x, int y, int z);
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/*
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* Prints the initial user choices :
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* - space dimension size and appearance (grids)
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* - arrows[] array
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* NB The space may be empty or saturated with arrows or any value in between
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* To assert : Only one arrow per possible coordinates with a load max equal to ?
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*/
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void show_user_choices(long copy_nb_arrows_specified,
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int space_size_x, int space_size_y, int space_size_z,
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int prefer, int arbitrary, int one_batch_size);
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/*
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* Prints the result of the function set_arrow()
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* and indicates the reasons of the choice (call) this function makes (see this function)
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*/
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void show_user_action(struct arrow_t *arrows, int arrows_nb, int address, int requested_weight,
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int current_weight, int site, int x, int y, int z);
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/*
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* Prints vertex and lines buffers_states (sizes) at major one_batch_sizes and at the end of a session.
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* Major one_batch_sizes are creation of grids and creation of arrows
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* Arithmetic verification is provided at each one_batch_size
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*/
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void show_buffers_states(int space_X, int space_Y, int space_Z,
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long nb_batches_specified, int one_batch_size,
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int offset_after_grids, int buffer_vertex_size,
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int buffer_lines_size_after_cubes, int buffer_lines_size);
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@ -27,6 +27,9 @@
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#include <stdbool.h>
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#include <GL/glu.h>
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void write_space_ridges (long x, long y, long z);
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void write_marks_along_space_ridges (long x, long y, long z);
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/*
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* Writes grid lines intersections to vertex and color buffers
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*
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@ -45,6 +48,15 @@ void grid_write_intersections (long x, long y, long z);
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*/
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void grid_write_ridges (long x, long y, long z);
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/*
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* Writes marks (each space unit) along space ridges
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*
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* @param coords long (x,y,z) // , step_x, step_y, step_z
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*
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* @return void
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*/
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void grid_write_marks (long x, long y, long z);
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/*
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* Writes grid lines for x axis to vertex and color buffers
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@ -0,0 +1,110 @@
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/*
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* Gem-graph OpenGL experiments
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*
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* Desc: OpenGL utils header
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*
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* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
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*
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* This file is part of Gem-graph.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "base.h"
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#include <unistd.h>
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#include <stdbool.h>
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#include <epoxy/gl.h>
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#include <GL/glu.h>
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#include <GL/glext.h>
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/*
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* Initializes the shaders of a gl_area and link them to a program
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*
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* @param gl_area, ptr to the gl_area widget
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*
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* @return true if initialized
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*/
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bool graphics_init_shaders(const void *gl_area);
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/*
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* Created and compile a shader
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*
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* @param type, shader type
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* src, source code of shader
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*
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* @return shader id
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*/
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static inline GLuint create_shader(int type, const char *src)
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{
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GLuint shader;
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int status;
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shader = glCreateShader(type);
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glShaderSource(shader, 1, &src, NULL);
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glCompileShader(shader);
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glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
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if(status == GL_FALSE) {
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int log_len;
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char *buffer;
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glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &log_len);
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buffer = g_malloc(log_len + 1);
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assert (buffer);
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glGetShaderInfoLog(shader, log_len, NULL, buffer);
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g_warning("Compile failure in %s shader:\n%s",
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type == GL_VERTEX_SHADER ? "vertex" : "fragment",
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buffer);
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g_free(buffer);
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glDeleteShader(shader);
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return 0;
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}
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return shader;
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}
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/*
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* Find the gl_area_entry size
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*
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* @param void
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*
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* @return size of array
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*/
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// extern struct gl_area_entry **gl_area_array;
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// static inline short gl_area_size(void)
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// {
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// struct gl_area_entry **cur;
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// short size;
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// Check uninitialized and quit
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// if (gl_area_array == NULL) return 0;
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// cur = gl_area_array;
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// while(*cur) {
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// cur++;
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// size++;
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// }
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// return size;
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// }
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/*** TEST ***/
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// void main_test_graphics (void);
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@ -0,0 +1,156 @@
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/*
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* Gem-graph OpenGL experiments
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*
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* Desc: GL functions
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*
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* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
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* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
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*
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* This file is part of Gem-graph.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <time.h>
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#include "../../include/graphics.h"
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#include "../../include/arrows.h"
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#include "../../include/displays.h"
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/*
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* Prints the arrows[] array
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*
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* For each arrow the following parameters are displayed :
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* - rank in the array
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* - weight (or load)
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* - coordinates in space (site, x, y, z)
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*/
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void show_arrows_array_head(int one_batch_size, long nb_batches_specified, int verbose) {
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printf("\n [rank] load | site x y z");
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if (verbose) printf(" one batch size = %d nb_batches_specified = %ld",\
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one_batch_size, nb_batches_specified);
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}
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void show_one_arrow_in_array(struct arrow_t *arrows, int i) {
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printf("\n [%4d] = %2d | %2d, %2d, %2d, %2d",\
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i, arrows[i].load, arrows[i].site, arrows[i].x, arrows[i].y, arrows[i].z);
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}
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void show_empty_arrows_array() {printf("\n [NULL] ---- | ---- --- --- ---");}
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void show_arrows_array (struct arrow_t *arrows, int arrows_nb, int x, int y, int z)
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{
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show_arrows_array_head (0,0,0);
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for (int i = 0; i < arrows_nb; i++)
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show_one_arrow_in_array(arrows, i);
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if (arrows_nb == 0) show_empty_arrows_array();
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}
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/*
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* Prints the initial user choices :
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* - space dimension size and appearance (grids)
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* - arrows[] array
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* NB The space may be empty or saturated with arrows or any value in between
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* To assert : Only one arrow per possible coordinates with a load max equal to ?
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*/
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void show_user_choices(long copy_nb_arrows_specified,
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int space_size_x, int space_size_y, int space_size_z,
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int prefer, int arbitrary, int one_batch_size)
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{
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printf("\nnb arrows specified = %ld", copy_nb_arrows_specified);
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printf(" space size (x,y,z) = (%d,%d,%d)", space_size_x, space_size_y, space_size_z);
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printf(" arbitrary = %d one_batch_size = %d", arbitrary, one_batch_size);
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if (prefer == 0) printf(" prefer = %d <> show all grids", prefer);
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if (prefer == 1) printf(" prefer = %d <> show no grid", prefer);
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if (prefer > 1) printf(" show grids according rule (%d)", prefer);
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}
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/*
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* Prints the result of the function set_arrow()
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* and indicates the reasons of the choice (call) this function makes (see this function)
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*/
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#define TEST 0
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void show_user_action(struct arrow_t *arrows, int arrows_nb, int address, int requested_weight,
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int current_weight, int site, int x, int y, int z)
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{
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if (address == -1 && requested_weight > 0) { // *(arrows + i * 5 + 0)
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printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); //arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
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if (! TEST) printf("\n "); else printf(" ");
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printf("=> CREATE"); return;}
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if (address >= 0 && requested_weight == 0) {
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printf("arrow (%2d,%2d,%2d,%2d) found at address %2d; current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
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if (! TEST) printf("\n "); else printf(" ");
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printf("=> ERASE"); return;}
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if (address >= 0 && current_weight != requested_weight) {
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printf("arrow (%2d,%2d,%2d,%2d) found at address %2d; current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
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if (! TEST) printf("\n "); else printf(" ");
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printf("=> MODIFY"); return;}
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if (address >= 0 && current_weight == requested_weight){
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printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;", site, x, y, z, address); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5);
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if (! TEST) printf("\n "); else printf(" ");
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printf("requested_weight == current_weight => END"); return;}
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if (address == -1 && requested_weight == 0) {
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printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
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if (! TEST) printf("\n "); else printf(" ");
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printf("=> END"); return;}
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}
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/*
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* Prints vertex and lines buffers_states (sizes) at major one_batch_sizes and at the end of a session.
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* Major one_batch_sizes are creation of grids and creation of arrows
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* Arithmetic verification is provided at each one_batch_size
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*/
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void show_buffers_states(int space_X, int space_Y, int space_Z,
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long nb_batches_specified, int one_batch_size,
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int offset_after_grids, int buffer_vertex_size,
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int buffer_lines_size_after_cubes, int buffer_lines_size)
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{
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int offset_after_arrows = buffer_vertex_size / 3, difference = offset_after_arrows - offset_after_grids;
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printf("\n - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
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printf("\n buffer_vertex_offset_after grids = %9d\t%9d = (x+1)*(y+1)*(z+1); <--> (x,y,z = %d,%d,%d)",\
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offset_after_grids, (space_X + 1)*(space_Y + 1)*(space_Z + 1), space_X, space_Y, space_Z);
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printf("\n buffer_vertex_offset_after arrows = %9d\t%9d = %d + %d; <--> %d = 12 x %d (%d cubes)",\
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offset_after_arrows, offset_after_arrows, offset_after_grids,\
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difference, difference, difference / 12, difference / 12);
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printf("\n buffer_lines_offset after cubes = %9d\t%9d = 2 * (%dx%d + %dx%d + %dx%d); <--> 2 * (x*y + x*z + y*z)",\
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buffer_lines_size_after_cubes, ((space_X+1) * (space_Y+1) + (space_X+1) * (space_Z+1) + (space_Y+1) * (space_Z+1)) * 2,
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space_X+1, space_Y+1, space_X+1, space_Z+1, space_Y+1, space_Z+1);
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printf("\n buffer_lines_offset after arrows = %9d\t%9d = %d + %d; <--> %d = 14 x %d (%d arrows drawned)",\
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buffer_lines_size, buffer_lines_size, buffer_lines_size_after_cubes,\
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buffer_lines_size - buffer_lines_size_after_cubes,\
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buffer_lines_size - buffer_lines_size_after_cubes, (buffer_lines_size - buffer_lines_size_after_cubes) / 14,\
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(buffer_lines_size - buffer_lines_size_after_cubes) / 14);
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if (nb_batches_specified * one_batch_size == 0) printf("\n");
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else printf("\n WARNING Arrows of the same address, whatever their weight, are drawn in superimposition. Check their list.");
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printf("\n It happens that NOT all the specified arrows (%ld) = (%ld x %d) are drawned (%d) ! WHY ? (d = %ld)\n",\
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nb_batches_specified * one_batch_size, nb_batches_specified, one_batch_size, (buffer_lines_size - buffer_lines_size_after_cubes) / 14,\
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nb_batches_specified * one_batch_size - (buffer_lines_size - buffer_lines_size_after_cubes) / 14);
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}
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@ -113,15 +113,6 @@ static void graphics_debug_callback(GLenum source, GLenum type, GLuint id,
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/* -------------------------------------------------------------------------- */
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/*
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* TODO ?
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* Should a function "graphics_erase_line (GLuint a, GLuint b)" be used ?
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* symetric with graphics_write_line (GLuint a, GLuint b)
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*
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* NB in this version lines only can be erased,
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* and similar functions for vertex and plans have not to be considered.
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*/
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/*
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* Writes values to describe a line from a to b into the line buffer
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*
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@ -278,7 +269,6 @@ bool graphics_init_shaders(const void *gl_area)
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return false;
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vertex = create_shader(GL_VERTEX_SHADER, vertex_shader);
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// ! WARNING ! l'instruction suivante (ou un autre 'free') a pu provoquer un 'double free' (Abandon)
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if(vertex == 0) {
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entry->program = 0;
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g_free(vertex_shader);
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@ -601,9 +591,11 @@ static void show_user_choices(struct arrow_t *arrows, int arrows_nb,
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{
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if (show_array) printf("\n");
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printf("model + user constraints :\tspace size x,y,z = %d,%d,%d\t", space_size_x, space_size_y, space_size_z);
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if (prefer == 0) printf("prefer = %d <> show all grids", prefer);
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if (prefer == 1) printf("prefer = %d <> show no grid", prefer);
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if (prefer > 1) printf("show grids according rule (%d)", prefer);
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if (show_all && prefer == 0) printf("prefer = %d <> show all grids", prefer);
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if (show_all && prefer == 1) printf("prefer = %d <> show no grid", prefer);
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if (show_all && prefer > 1) printf("show grids according rule (%d)", prefer);
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printf("\n");
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if (show_all) printf("\n\
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initial arrows data with arrows_nb = %d", arrows_nb);
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if (show_array) show_arrows_array (arrows, arrows_nb, space_size_x, space_size_y, space_size_z);
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@ -645,6 +637,7 @@ static void show_buffers_states(int space_X, int space_Y, int space_Z, int arrow
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if (arrows_nb > 1)
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printf("\n WARNING In this test, it may happens that some arrows (whatever their weights) are drawn superimposed (check the list).\n");
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else printf("\n");
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}
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|
@ -879,13 +872,12 @@ void __attribute__((optimize("no-unroll-loops"))) main_test_graphics (void)
|
|||
int rand(void);
|
||||
void srand(unsigned int seed); // printf ("Valeur max : %d\n", RAND_MAX); min + rand() % (max+1 - min);
|
||||
|
||||
int arbitrary = 4000000;
|
||||
int space_arbitrary = 200;
|
||||
int space_X = 200 + rand() % space_arbitrary,
|
||||
space_Y = 200 + rand() % space_arbitrary,
|
||||
space_Z = 200 + rand() % space_arbitrary;
|
||||
int arbitrary = 4;
|
||||
int space_X = 3, // 1 + rand() % arbitrary,
|
||||
space_Y = 3, // 1 + rand() % arbitrary,
|
||||
space_Z = 3; // 1 + rand() % arbitrary;
|
||||
int density_max = space_X * space_Y * space_Z;
|
||||
int arrows_nb = 0;
|
||||
int arrows_nb = 0;//rand() % density_max;
|
||||
int pref_show_grids = 1; // 0, 1, 2, 3, 5, 6, 10, 15, 30, etc
|
||||
// xyz, 0, x, y, z, xy, xz, yz, xyz
|
||||
int weight = 0, site = 0,
|
||||
|
|
@ -894,81 +886,66 @@ void __attribute__((optimize("no-unroll-loops"))) main_test_graphics (void)
|
|||
int buffer_lines_size_after_cubes = buffer_lines_size;
|
||||
int offset_up_to_this_cube_coords = 0, x, y, z;
|
||||
|
||||
/* arrows = g_malloc0(arrows_nb * sizeof(struct arrow_t)); */
|
||||
show_user_choices(arrows, arrows_nb, space_X, space_Y, space_Z, pref_show_grids, 0, 0);
|
||||
|
||||
show_user_choices(arrows, arrows_nb, space_X, space_Y, space_Z, pref_show_grids, 1, 0);
|
||||
|
||||
// WARNING arrows with same address will be drawn superimposed
|
||||
/* if (arrows_nb > 0) */
|
||||
/* for (int i = 0; i < arrows_nb; i ++) { */
|
||||
/* arrows[i].load = 1 + rand() % arbitrary; */
|
||||
/* arrows[i].site = rand() % 6; */
|
||||
/* arrows[i].x = rand() % space_X; */
|
||||
/* arrows[i].y = rand() % space_Y; */
|
||||
/* arrows[i].z = rand() % space_Z; */
|
||||
/* }; */
|
||||
|
||||
// forget the next two lines during the random tests
|
||||
// arrows[] = {... some values ...}
|
||||
// int arrows_nb = sizeof(arrows) / sizeof(arrows[0]) / 5;
|
||||
write_space_ridges (space_X, space_Y, space_Z);
|
||||
write_marks_along_space_ridges (space_X, space_Y, space_Z);
|
||||
|
||||
/* GRID */
|
||||
grid_write_intersections (space_X, space_Y, space_Z);
|
||||
if (pref_show_grids % 2 == 0) grid_write_x (space_X, space_Y, space_Z);
|
||||
if (pref_show_grids % 3 == 0) grid_write_y (space_X, space_Y, space_Z);
|
||||
if (pref_show_grids % 5 == 0) grid_write_z (space_X, space_Y, space_Z);
|
||||
if (pref_show_grids > 0) grid_write_ridges (space_X, space_Y, space_Z);
|
||||
/* grid_write_intersections (space_X, space_Y, space_Z); */
|
||||
/* if (pref_show_grids % 2 == 0) grid_write_x (space_X, space_Y, space_Z); */
|
||||
/* if (pref_show_grids % 3 == 0) grid_write_y (space_X, space_Y, space_Z); */
|
||||
/* if (pref_show_grids % 5 == 0) grid_write_z (space_X, space_Y, space_Z); */
|
||||
/* if (pref_show_grids > 0) grid_write_ridges (space_X, space_Y, space_Z); */
|
||||
|
||||
/* grid_write_marks (space_X, space_Y, space_Z); */
|
||||
|
||||
/* ARROWS */
|
||||
/* NB The 12 vertices required to draw 6 arrows in each cube
|
||||
* are always defined (whether arrows are drawn or not). */
|
||||
/* Therefore: if (arrows_nb > 0) is not required (next line) */
|
||||
arrows_write_terminations (space_X, space_Y, space_Z);
|
||||
/* arrows_write_terminations (space_X, space_Y, space_Z); */
|
||||
|
||||
/* Writing 100 by 100*/
|
||||
volatile int remaining = arbitrary;
|
||||
while (remaining) {
|
||||
for (int l = 0; l < 10; l++) {
|
||||
arrows_nb = set_arrow (arrows, arrows_nb,
|
||||
rand() % arbitrary, // load / weight
|
||||
rand() % 6, // site,
|
||||
rand() % space_X, // x
|
||||
rand() % space_Y, // y
|
||||
rand() % space_Z); // z
|
||||
}
|
||||
remaining -= 100;
|
||||
/* volatile int remaining = arbitrary; */
|
||||
/* while (remaining) { */
|
||||
/* for (int l = 0; l < 10; l++) { */
|
||||
/* arrows_nb = set_arrow (arrows, arrows_nb, */
|
||||
/* rand() % arbitrary, // load / weight */
|
||||
/* rand() % 6, // site, */
|
||||
/* rand() % space_X, // x */
|
||||
/* rand() % space_Y, // y */
|
||||
/* rand() % space_Z); // z */
|
||||
/* } */
|
||||
/* remaining -= 10; */
|
||||
|
||||
for (int i = 0; i < arrows_nb; i++) {
|
||||
weight = arrows[i].load;
|
||||
site = arrows[i].site;
|
||||
x = arrows[i].x;
|
||||
y = arrows[i].y;
|
||||
z = arrows[i].z;
|
||||
/* for (int i = 0; i < arrows_nb; i++) { */
|
||||
/* weight = arrows[i].load; */
|
||||
/* site = arrows[i].site; */
|
||||
/* x = arrows[i].x; */
|
||||
/* y = arrows[i].y; */
|
||||
/* z = arrows[i].z; */
|
||||
|
||||
offset_up_to_this_cube_coords = 12 * (stx * x + sty * y + stz * z);
|
||||
arrow_offset = offset_after_grids + offset_up_to_this_cube_coords;
|
||||
/* offset_up_to_this_cube_coords = 12 * (stx * x + sty * y + stz * z); */
|
||||
/* arrow_offset = offset_after_grids + offset_up_to_this_cube_coords; */
|
||||
|
||||
arrows_write_basis (arrow_offset);
|
||||
/* arrows_write_basis (arrow_offset); */
|
||||
|
||||
switch(site){
|
||||
case EAST: case WEST: write_arrow_lines_east_west (arrow_offset, weight, site); break;
|
||||
case ZENITH: case NADIR: write_arrow_lines_zenith_nadir (arrow_offset, weight, site); break;
|
||||
case SOUTH: case NORTH: write_arrow_lines_south_north (arrow_offset, weight, site); break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
/* switch(site){ */
|
||||
/* case EAST: case WEST: write_arrow_lines_east_west (arrow_offset, weight, site); break; */
|
||||
/* case ZENITH: case NADIR: write_arrow_lines_zenith_nadir (arrow_offset, weight, site); break; */
|
||||
/* case SOUTH: case NORTH: write_arrow_lines_south_north (arrow_offset, weight, site); break; */
|
||||
/* default: break; */
|
||||
/* } */
|
||||
/* } */
|
||||
|
||||
free(arrows);
|
||||
arrows = NULL;
|
||||
arrows_nb = 0;
|
||||
if (TEST) printf("\nCreated %d arrows", arbitrary - remaining);
|
||||
}
|
||||
/* free(arrows); */
|
||||
/* arrows = NULL; */
|
||||
/* arrows_nb = 0; */
|
||||
/* if (TEST) printf("\nCreated %d arrows", arbitrary - remaining); */
|
||||
/* } */
|
||||
|
||||
// ligne suivante inutile: < ce sont les sous-fonctions de set_arrow() qui appellent
|
||||
// show_user_choices(arrows, arrows_nb, space_X, space_Y, space_Z, pref_show_grids, 1, 1);
|
||||
|
||||
show_buffers_states(space_X, space_Y, space_Z, arrows_nb,
|
||||
offset_after_grids, buffer_vertex_size,
|
||||
buffer_lines_size_after_cubes, buffer_lines_size);
|
||||
/* show_buffers_states(space_X, space_Y, space_Z, arrows_nb, */
|
||||
/* offset_after_grids, buffer_vertex_size, */
|
||||
/* buffer_lines_size_after_cubes, buffer_lines_size); */
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -24,6 +24,89 @@
|
|||
|
||||
#include "../../include/base.h"
|
||||
#include "../../include/graphics.h"
|
||||
|
||||
void write_space_ridges (long x, long y, long z)
|
||||
{
|
||||
float max = fmax(x, y); max = fmax(max, z);
|
||||
|
||||
graphics_write_vertex (- x / max, - y / max, - z / max);
|
||||
|
||||
graphics_write_vertex (+ x / max, - y / max, - z / max);
|
||||
graphics_write_vertex (- x / max, + y / max, - z / max);
|
||||
graphics_write_vertex (- x / max, - y / max, + z / max);
|
||||
|
||||
graphics_write_vertex (+ x / max, + y / max, - z / max);
|
||||
graphics_write_vertex (+ x / max, - y / max, + z / max);
|
||||
graphics_write_vertex (- x / max, + y / max, + z / max);
|
||||
|
||||
graphics_write_vertex (+ x / max, + y / max, + z / max);
|
||||
|
||||
graphics_write_line ( 0, 1); graphics_write_line ( 7, 4);
|
||||
graphics_write_line ( 0, 2); graphics_write_line ( 7, 5);
|
||||
graphics_write_line ( 0, 3); graphics_write_line ( 7, 6);
|
||||
|
||||
graphics_write_line ( 1, 4); graphics_write_line ( 2, 4);
|
||||
graphics_write_line ( 1, 5); graphics_write_line ( 3, 5);
|
||||
graphics_write_line ( 2, 6); graphics_write_line ( 3, 6);
|
||||
}
|
||||
|
||||
void write_marks_along_space_ridges (long x, long y, long z)
|
||||
{
|
||||
float i, j, k, vx, vy, vz, max = fmax(x, y);
|
||||
max = fmax(max, z);
|
||||
// printf("\n");
|
||||
for (i = 0; i <= x; i++)
|
||||
for (j = 0; j <= y; j++)
|
||||
for (k = 0; k <= z; k++){
|
||||
|
||||
vx = (2 * i / x - 1) * x / max;
|
||||
vy = (2 * j / y - 1) * y / max;
|
||||
vz = (2 * k / z - 1) * z / max;
|
||||
|
||||
if ((i == 0 && j == 0) || (i == 0 && j == y) || (i == x && j == 0) || (i == x && j == y)
|
||||
|| (i == 0 && k == 0) || (i == 0 && k == z) || (i == x && k == 0) || (i == x && k == z)
|
||||
|| (j == 0 && k == 0) || (j == 0 && k == z) || (j == y && k == 0) || (j == y && k == z))
|
||||
|
||||
graphics_write_vertex (vx, vy, vz);
|
||||
};
|
||||
|
||||
int buffer_lines_offset = 24;
|
||||
|
||||
graphics_write_line (buffer_lines_offset + 0, buffer_lines_offset + 2);
|
||||
graphics_write_line (buffer_lines_offset + 1, buffer_lines_offset + 3);
|
||||
|
||||
graphics_write_line (buffer_lines_offset + 1, buffer_lines_offset + 0);
|
||||
graphics_write_line (buffer_lines_offset + 2, buffer_lines_offset + 3);
|
||||
|
||||
graphics_write_line (buffer_lines_offset + 8, buffer_lines_offset + 9);
|
||||
graphics_write_line (buffer_lines_offset + 10, buffer_lines_offset + 11);
|
||||
|
||||
graphics_write_line (buffer_lines_offset + 5, buffer_lines_offset + 13);
|
||||
graphics_write_line (buffer_lines_offset + 6, buffer_lines_offset + 14);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Writes grid lines intersections to vertex and color buffers
|
||||
|
|
@ -47,7 +130,7 @@ void grid_write_intersections (long x, long y, long z)
|
|||
vz = (2 * k / z - 1) * z / max;
|
||||
|
||||
graphics_write_vertex (vx, vy, vz);
|
||||
graphics_write_color (0.64f,0.64f,0.64f);
|
||||
// graphics_write_color (0.64f,0.64f,0.64f);
|
||||
};
|
||||
}
|
||||
|
||||
|
|
@ -58,9 +141,20 @@ void grid_write_intersections (long x, long y, long z)
|
|||
*
|
||||
* @return void
|
||||
*/
|
||||
void grid_write_ridges (long x,
|
||||
long y,
|
||||
long z)
|
||||
void grid_write_marks (long x, long y, long z)
|
||||
{
|
||||
long step_x = (z + 1) * (y + 1), step_y = z + 1, step_z = 1;
|
||||
int delta = 1.0f;
|
||||
for (int i=1; i < z; i ++) {
|
||||
// graphics_write_vertex (delta, delta, i); graphics_write_vertex (delta, - delta, i);
|
||||
// graphics_write_color (0.3f,0.3f,0.3f); graphics_write_color (0.3f,0.3f,0.3f);
|
||||
// graphics_write_line (0, step_z * z + step_y * y + step_x * x);
|
||||
graphics_write_line ( i * step_z, i * step_z + x);
|
||||
// graphics_write_line ( i * step_z, i * step_z + y);
|
||||
}
|
||||
}
|
||||
|
||||
void grid_write_ridges (long x, long y, long z)
|
||||
{
|
||||
long step_x = (z + 1) * (y + 1),
|
||||
step_y = z + 1,
|
||||
|
|
|
|||
Loading…
Reference in New Issue