diff options
Diffstat (limited to 'progs')
| -rw-r--r-- | progs/demos/isosurf.c | 14 | ||||
| -rw-r--r-- | progs/trivial/.gitignore | 1 | ||||
| -rw-r--r-- | progs/trivial/Makefile | 1 | ||||
| -rw-r--r-- | progs/trivial/SConscript | 1 | ||||
| -rw-r--r-- | progs/trivial/tri-unfilled-fog.c | 152 |
5 files changed, 165 insertions, 4 deletions
diff --git a/progs/demos/isosurf.c b/progs/demos/isosurf.c index 393741cc9d..e280d8f507 100644 --- a/progs/demos/isosurf.c +++ b/progs/demos/isosurf.c @@ -69,6 +69,7 @@ #define NO_STIPPLE 0x08000000 #define POLYGON_FILL 0x10000000 #define POLYGON_LINE 0x20000000 +#define POLYGON_POINT 0x40000000 #define LIGHT_MASK (LIT|UNLIT|REFLECT) #define FILTER_MASK (POINT_FILTER|LINEAR_FILTER) @@ -81,7 +82,7 @@ #define SHADE_MASK (SHADE_SMOOTH|SHADE_FLAT) #define FOG_MASK (FOG|NO_FOG) #define STIPPLE_MASK (STIPPLE|NO_STIPPLE) -#define POLYGON_MASK (POLYGON_FILL|POLYGON_LINE) +#define POLYGON_MASK (POLYGON_FILL|POLYGON_LINE|POLYGON_POINT) #define MAXVERTS 10000 static GLint maxverts = MAXVERTS; @@ -147,7 +148,7 @@ static void read_surface( char *filename ) static void print_flags( const char *msg, GLuint flags ) { fprintf(stderr, - "%s (0x%x): %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", + "%s (0x%x): %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", msg, flags, (flags & GLVERTEX) ? "glVertex, " : "", (flags & DRAW_ARRAYS) ? "glDrawArrays, " : "", @@ -166,7 +167,8 @@ static void print_flags( const char *msg, GLuint flags ) (flags & MATERIALS) ? "materials, " : "", (flags & FOG) ? "fog, " : "", (flags & STIPPLE) ? "stipple, " : "", - (flags & POLYGON_LINE) ? "polygon mode line, " : ""); + (flags & POLYGON_LINE) ? "polygon mode line, " : "", + (flags & POLYGON_POINT) ? "polygon mode point, " : ""); } @@ -711,9 +713,12 @@ static void ModeMenu(int m) if (m & POLYGON_FILL) { glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); } - else { + else if (m & POLYGON_LINE) { glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); } + else { + glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); + } } #ifdef GL_EXT_vertex_array @@ -1089,6 +1094,7 @@ int main(int argc, char **argv) glutAddMenuEntry("", 0); glutAddMenuEntry("Polygon Mode Fill", POLYGON_FILL); glutAddMenuEntry("Polygon Mode Line", POLYGON_LINE); + glutAddMenuEntry("Polygon Mode Points", POLYGON_POINT); glutAddMenuEntry("", 0); glutAddMenuEntry("Point Filtered", POINT_FILTER); glutAddMenuEntry("Linear Filtered", LINEAR_FILTER); diff --git a/progs/trivial/.gitignore b/progs/trivial/.gitignore index d77f120b96..f58345ce3b 100644 --- a/progs/trivial/.gitignore +++ b/progs/trivial/.gitignore @@ -102,6 +102,7 @@ tri-tri tri-unfilled tri-unfilled-clip tri-unfilled-edgeflag +tri-unfilled-fog tri-unfilled-smooth tri-unfilled-tri tri-unfilled-tri-lit diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile index dce96f6bc8..2800f3ef82 100644 --- a/progs/trivial/Makefile +++ b/progs/trivial/Makefile @@ -108,6 +108,7 @@ SOURCES = \ tri-tex.c \ tri-tex-3d.c \ tri-tri.c \ + tri-unfilled-fog.c \ tri-unfilled-edgeflag.c \ tri-unfilled-clip.c \ tri-unfilled-smooth.c \ diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript index 76826d9be0..d699e2b46b 100644 --- a/progs/trivial/SConscript +++ b/progs/trivial/SConscript @@ -103,6 +103,7 @@ progs = [ 'tri-tex', 'tri-tex-3d', 'tri-tri', + 'tri-unfilled-fog', 'tri-unfilled-edgeflag', 'tri-unfilled-clip', 'tri-unfilled-smooth', diff --git a/progs/trivial/tri-unfilled-fog.c b/progs/trivial/tri-unfilled-fog.c new file mode 100644 index 0000000000..90444aecdf --- /dev/null +++ b/progs/trivial/tri-unfilled-fog.c @@ -0,0 +1,152 @@ +/* + * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the name of + * Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF + * ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <GL/glut.h> + + +#define CI_OFFSET_1 16 +#define CI_OFFSET_2 32 + +GLint Width = 250, Height = 250; + +GLenum doubleBuffer; + +static void Init(void) +{ + fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + + glClearColor(0.0, 0.0, 1.0, 0.0); +} + +static void Reshape(int width, int height) +{ + glViewport(0, 0, (GLint)width, (GLint)height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); + glMatrixMode(GL_MODELVIEW); +} + +static void Key(unsigned char key, int x, int y) +{ + switch (key) { + case 27: + exit(1); + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glEnable(GL_FOG); + + glPolygonMode(GL_FRONT, GL_FILL); + glPolygonMode(GL_BACK, GL_FILL); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.7, -0.7, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.7, 0.7, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.7, 0.0, -30.0); + glEnd(); + + glPolygonMode(GL_FRONT, GL_LINE); + glPolygonMode(GL_BACK, GL_LINE); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,.7); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(.8,0,0); + glVertex3f( 0.9, 0.9, -30.0); + glColor3f(0,.9,0); + glVertex3f(-0.9, 0.0, -30.0); + glEnd(); + + glDisable(GL_FOG); + + glFlush(); + + if (doubleBuffer) { + glutSwapBuffers(); + } +} + +static GLenum Args(int argc, char **argv) +{ + GLint i; + + doubleBuffer = GL_FALSE; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-sb") == 0) { + doubleBuffer = GL_FALSE; + } else if (strcmp(argv[i], "-db") == 0) { + doubleBuffer = GL_TRUE; + } else { + fprintf(stderr, "%s (Bad option).\n", argv[i]); + return GL_FALSE; + } + } + return GL_TRUE; +} + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + if (Args(argc, argv) == GL_FALSE) { + exit(1); + } + + glutInitWindowPosition(100, 0); glutInitWindowSize(Width, Height); + + type = GLUT_RGB; + type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("Filled and unfilled fog tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} |