summaryrefslogtreecommitdiff
path: root/progs/glsl/noise2.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/glsl/noise2.c')
-rw-r--r--progs/glsl/noise2.c200
1 files changed, 0 insertions, 200 deletions
diff --git a/progs/glsl/noise2.c b/progs/glsl/noise2.c
deleted file mode 100644
index 7a28f09947..0000000000
--- a/progs/glsl/noise2.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * GLSL noise demo.
- *
- * Michal Krol
- * 20 February 2006
- *
- * Based on the original demo by:
- * Stefan Gustavson (stegu@itn.liu.se) 2004, 2005
- */
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <GL/gl.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-
-#ifdef WIN32
-#define GETPROCADDRESS(F) wglGetProcAddress(F)
-#else
-#define GETPROCADDRESS(F) glutGetProcAddress(F)
-#endif
-
-static GLhandleARB fragShader;
-static GLhandleARB vertShader;
-static GLhandleARB program;
-
-static GLint uTime;
-
-static GLint t0 = 0;
-static GLint frames = 0;
-
-static GLfloat u_time = 0.0f;
-
-static PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObjectARB = NULL;
-static PFNGLSHADERSOURCEARBPROC glShaderSourceARB = NULL;
-static PFNGLCOMPILESHADERARBPROC glCompileShaderARB = NULL;
-static PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObjectARB = NULL;
-static PFNGLATTACHOBJECTARBPROC glAttachObjectARB = NULL;
-static PFNGLLINKPROGRAMARBPROC glLinkProgramARB = NULL;
-static PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB = NULL;
-static PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB = NULL;
-static PFNGLUNIFORM1FARBPROC glUniform1fARB = NULL;
-
-static void Redisplay (void)
-{
- GLint t;
-
- glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glUniform1fARB (uTime, 0.5f * u_time);
-
- glPushMatrix ();
- glutSolidSphere (2.0, 20, 10);
- glPopMatrix ();
-
- glutSwapBuffers();
- frames++;
-
- t = glutGet (GLUT_ELAPSED_TIME);
- if (t - t0 >= 5000) {
- GLfloat seconds = (GLfloat) (t - t0) / 1000.0f;
- GLfloat fps = frames / seconds;
- printf ("%d frames in %6.3f seconds = %6.3f FPS\n", frames, seconds, fps);
- fflush(stdout);
- t0 = t;
- frames = 0;
- }
-}
-
-static void Idle (void)
-{
- u_time += 0.1f;
- glutPostRedisplay ();
-}
-
-static void Reshape (int width, int height)
-{
- glViewport (0, 0, width, height);
- glMatrixMode (GL_PROJECTION);
- glLoadIdentity ();
- glFrustum (-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
- glMatrixMode (GL_MODELVIEW);
- glLoadIdentity ();
- glTranslatef (0.0f, 0.0f, -15.0f);
-}
-
-static void Key (unsigned char key, int x, int y)
-{
- (void) x;
- (void) y;
-
- switch (key)
- {
- case 27:
- exit(0);
- break;
- }
- glutPostRedisplay ();
-}
-
-static void Init (void)
-{
- static const char *fragShaderText =
- "uniform float time;\n"
- "varying vec3 position;\n"
- "void main () {\n"
- " gl_FragColor = vec4 (vec3 (0.5 + 0.5 * noise1 (vec4 (position, time))), 1.0);\n"
- "}\n"
- ;
- static const char *vertShaderText =
- "varying vec3 position;\n"
- "void main () {\n"
- " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
- " position = 4.0 * gl_Vertex.xyz;\n"
- "}\n"
- ;
-
- if (!glutExtensionSupported ("GL_ARB_fragment_shader"))
- {
- printf ("Sorry, this demo requires GL_ARB_fragment_shader\n");
- exit(1);
- }
- if (!glutExtensionSupported ("GL_ARB_shader_objects"))
- {
- printf ("Sorry, this demo requires GL_ARB_shader_objects\n");
- exit(1);
- }
- if (!glutExtensionSupported ("GL_ARB_shading_language_100"))
- {
- printf ("Sorry, this demo requires GL_ARB_shading_language_100\n");
- exit(1);
- }
- if (!glutExtensionSupported ("GL_ARB_vertex_shader"))
- {
- printf ("Sorry, this demo requires GL_ARB_vertex_shader\n");
- exit(1);
- }
-
- glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)
- GETPROCADDRESS("glCreateShaderObjectARB");
- glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)
- GETPROCADDRESS("glShaderSourceARB");
- glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)
- GETPROCADDRESS("glCompileShaderARB");
- glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)
- GETPROCADDRESS("glCreateProgramObjectARB");
- glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)
- GETPROCADDRESS("glAttachObjectARB");
- glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)
- GETPROCADDRESS ("glLinkProgramARB");
- glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)
- GETPROCADDRESS("glUseProgramObjectARB");
-
- glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)
- GETPROCADDRESS("glGetUniformLocationARB");
- glUniform1fARB = (PFNGLUNIFORM1FARBPROC)
- GETPROCADDRESS("glUniform1fARB");
-
- fragShader = glCreateShaderObjectARB (GL_FRAGMENT_SHADER_ARB);
- glShaderSourceARB (fragShader, 1, &fragShaderText, NULL);
- glCompileShaderARB (fragShader);
-
- vertShader = glCreateShaderObjectARB (GL_VERTEX_SHADER_ARB);
- glShaderSourceARB (vertShader, 1, &vertShaderText, NULL);
- glCompileShaderARB (vertShader);
-
- program = glCreateProgramObjectARB ();
- glAttachObjectARB (program, fragShader);
- glAttachObjectARB (program, vertShader);
- glLinkProgramARB (program);
- glUseProgramObjectARB (program);
-
- uTime = glGetUniformLocationARB (program, "time");
-
- glClearColor (0.0f, 0.1f, 0.3f, 1.0f);
- glEnable (GL_CULL_FACE);
- glEnable (GL_DEPTH_TEST);
-
- printf ("GL_RENDERER = %s\n", (const char *) glGetString (GL_RENDERER));
-}
-
-int main (int argc, char *argv[])
-{
- glutInit (&argc, argv);
- glutInitWindowSize (200, 200);
- glutInitDisplayMode (GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
- glutCreateWindow (argv[0]);
- glutReshapeFunc (Reshape);
- glutKeyboardFunc (Key);
- glutDisplayFunc (Redisplay);
- glutIdleFunc (Idle);
- Init ();
- glutMainLoop ();
- return 0;
-}
-