/* Test glGenProgramsNV(), glIsProgramNV(), glLoadProgramNV() */ #include <assert.h> #include <string.h> #include <stdio.h> #include <stdlib.h> #include <math.h> #include <GL/glew.h> #include <GL/glut.h> static float Zrot = 0.0; static void Display( void ) { glClearColor(0.3, 0.3, 0.3, 1); glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glEnable(GL_VERTEX_PROGRAM_NV); glLoadIdentity(); glRotatef(Zrot, 0, 0, 1); glTrackMatrixNV(GL_VERTEX_PROGRAM_NV, 0, GL_MODELVIEW, GL_IDENTITY_NV); glPushMatrix(); glVertexAttrib3fNV(3, 1, 0.5, 0.25); glBegin(GL_TRIANGLES); #if 1 glVertexAttrib3fNV(3, 1.0, 0.0, 0.0); glVertexAttrib2fNV(0, -0.5, -0.5); glVertexAttrib3fNV(3, 0.0, 1.0, 0.0); glVertexAttrib2fNV(0, 0.5, -0.5); glVertexAttrib3fNV(3, 0.0, 0.0, 1.0); glVertexAttrib2fNV(0, 0, 0.5); #else glVertex2f( -1, -1); glVertex2f( 1, -1); glVertex2f( 0, 1); #endif glEnd(); glPopMatrix(); glutSwapBuffers(); } static void Reshape( int width, int height ) { glViewport( 0, 0, width, height ); glMatrixMode( GL_PROJECTION ); glLoadIdentity(); /* glFrustum( -2.0, 2.0, -2.0, 2.0, 5.0, 25.0 );*/ glOrtho(-2.0, 2.0, -2.0, 2.0, -2.0, 2.0 ); glMatrixMode( GL_MODELVIEW ); glLoadIdentity(); /*glTranslatef( 0.0, 0.0, -15.0 );*/ } static void Key( unsigned char key, int x, int y ) { (void) x; (void) y; switch (key) { case 'z': Zrot -= 5.0; break; case 'Z': Zrot += 5.0; break; case 27: exit(0); break; } glutPostRedisplay(); } static void Init( void ) { static const char *prog1 = "!!VP1.0\n" "MOV o[COL0], v[COL0];\n" #if 0 "MOV o[HPOS], v[OPOS];\n" #else "DP4 o[HPOS].x, v[OPOS], c[0];\n" "DP4 o[HPOS].y, v[OPOS], c[1];\n" "DP4 o[HPOS].z, v[OPOS], c[2];\n" "DP4 o[HPOS].w, v[OPOS], c[3];\n" #endif "END\n"; if (!glutExtensionSupported("GL_NV_vertex_program")) { printf("Sorry, this program requires GL_NV_vertex_program\n"); exit(1); } glLoadProgramNV(GL_VERTEX_PROGRAM_NV, 1, strlen(prog1), (const GLubyte *) prog1); assert(glIsProgramNV(1)); glBindProgramNV(GL_VERTEX_PROGRAM_NV, 1); printf("glGetError = %d\n", (int) glGetError()); } int main( int argc, char *argv[] ) { glutInit( &argc, argv ); glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 250, 250 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow(argv[0]); glewInit(); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); glutDisplayFunc( Display ); Init(); glutMainLoop(); return 0; }