diff options
Diffstat (limited to 'progs/demos')
-rw-r--r-- | progs/demos/Makefile.win | 23 | ||||
-rw-r--r-- | progs/demos/arbfplight.c | 4 | ||||
-rw-r--r-- | progs/demos/arbfslight.c | 2 | ||||
-rw-r--r-- | progs/demos/fogcoord.c | 364 | ||||
-rw-r--r-- | progs/demos/fplight.c | 6 | ||||
-rw-r--r-- | progs/demos/fslight.c | 12 | ||||
-rw-r--r-- | progs/demos/shadowtex.c | 328 | ||||
-rw-r--r-- | progs/demos/spriteblast.c | 22 | ||||
-rw-r--r-- | progs/demos/tessdemo.c | 2 |
9 files changed, 511 insertions, 252 deletions
diff --git a/progs/demos/Makefile.win b/progs/demos/Makefile.win index 4ac32361b26..0d0b19b9fe7 100644 --- a/progs/demos/Makefile.win +++ b/progs/demos/Makefile.win @@ -22,9 +22,11 @@ LIBS = GLUT32.LIB OPENGL32.LIB all: OPENGL32.DLL GLU32.DLL GLUT32.DLL \ readtex.h readtex.c showbuffer.h showbuffer.c \ + extfuncs.h trackball.h trackball.c \ arbfplight.exe arbfslight.exe arbocclude.exe bounce.exe \ - clearspd.exe cubemap.exe drawpix.exe fire.exe fogcoord.exe \ - fplight.exe gamma.exe gearbox.exe \ + clearspd.exe cubemap.exe drawpix.exe engine.exe \ + fire.exe fogcoord.exe \ + fplight.exe fslight.exe gamma.exe gearbox.exe \ gears.exe geartrain.exe gloss.exe \ glinfo.exe glslnoise.exe \ gltestperf.exe glutfx.exe ipers.exe isosurf.exe lodbias.exe \ @@ -42,14 +44,16 @@ bounce.exe: bounce.obj clearspd.exe: clearspd.obj cubemap.exe: cubemap.obj readtex.obj drawpix.exe: drawpix.obj readtex.obj +engine.exe: engine.obj readtex.obj trackball.obj fire.exe: fire.obj readtex.obj fogcoord.exe: fogcoord.obj readtex.obj fplight.exe: fplight.obj +fslight.exe: fslight.obj gamma.exe: gamma.obj gearbox.exe: gearbox.obj gears.exe: gears.obj geartrain.exe: geartrain.obj -gloss.exe: gloss.obj readtex.obj +gloss.exe: gloss.obj readtex.obj trackball.obj glinfo.exe: glinfo.obj glslnoise.exe: glslnoise.obj gltestperf.exe: gltestperf.obj @@ -105,14 +109,23 @@ showbuffer.c: $(TOP)\progs\util\showbuffer.c showbuffer.h: $(TOP)\progs\util\showbuffer.h copy $** . +trackball.c: $(TOP)\progs\util\trackball.c + copy $** . + +trackball.h: $(TOP)\progs\util\trackball.h + copy $** . + +extfuncs.h: $(TOP)\progs\util\extfuncs.h + copy $** . + .obj.exe: $(link) $(ldebug) -out:$@ $** /LIBPATH:$(LIBDIR) $(LIBS) .c.obj: - $(cc) $(cdebug) $(cflags) $(cvars) /I$(INCDIR) $*.c + $(cc) $(cdebug) $(cflags) $(cvars) -D_USE_MATH_DEFINES /I$(INCDIR) $*.c clean:: - del *.obj *.exe readtex.* showbuffer.* + del *.obj *.exe readtex.* showbuffer.* trackball.* clobber:: diff --git a/progs/demos/arbfplight.c b/progs/demos/arbfplight.c index d9c564fbe56..bc2c7e312ab 100644 --- a/progs/demos/arbfplight.c +++ b/progs/demos/arbfplight.c @@ -24,6 +24,7 @@ static GLuint VertProg; static GLboolean Anim = GL_TRUE; static GLboolean Wire = GL_FALSE; static GLboolean PixelLight = GL_TRUE; +static GLint Win; static GLint T0 = 0; static GLint Frames = 0; @@ -148,6 +149,7 @@ static void Key( unsigned char key, int x, int y ) case 27: glDeleteProgramsARB_func(1, &VertProg); glDeleteProgramsARB_func(1, &FragProg); + glutDestroyWindow(Win); exit(0); break; } @@ -382,7 +384,7 @@ int main( int argc, char *argv[] ) glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 200, 200 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); - glutCreateWindow(argv[0]); + Win = glutCreateWindow(argv[0]); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); glutSpecialFunc( SpecialKey ); diff --git a/progs/demos/arbfslight.c b/progs/demos/arbfslight.c index 374de568872..69575f06236 100644 --- a/progs/demos/arbfslight.c +++ b/progs/demos/arbfslight.c @@ -62,7 +62,7 @@ static PFNGLUNIFORM3FVARBPROC glUniform4fvARB = NULL; static void normalize (GLfloat *dst, const GLfloat *src) { - GLfloat len = sqrtf (src[0] * src[0] + src[1] * src[1] + src[2] * src[2]); + GLfloat len = sqrt (src[0] * src[0] + src[1] * src[1] + src[2] * src[2]); dst[0] = src[0] / len; dst[1] = src[1] / len; dst[2] = src[2] / len; diff --git a/progs/demos/fogcoord.c b/progs/demos/fogcoord.c index 19a15f05b87..00c73c6f048 100644 --- a/progs/demos/fogcoord.c +++ b/progs/demos/fogcoord.c @@ -7,151 +7,136 @@ * Daniel Borca */ - +#define GL_GLEXT_PROTOTYPES #include <stdio.h> #include <stdlib.h> #include <math.h> #include <GL/glut.h> -#include "readtex.h" - -#define TEXTURE_FILE "../images/bw.rgb" - -#define ARRAYS 0 /* use glDrawElements */ - -#define VERBOSE 1 /* tell me what happens */ +#define DEPTH 5.0f -#define DEPTH 15.0f +static PFNGLFOGCOORDFEXTPROC glFogCoordf_ext; +static PFNGLFOGCOORDPOINTEREXTPROC glFogCoordPointer_ext; -#if !defined(GLAPIENTRYP) -# define GLAPIENTRYP * -#endif - -typedef void (GLAPIENTRYP GLFOGCOORDFEXTPROC) (GLfloat f); -typedef void (GLAPIENTRYP GLFOGCOORDPOINTEREXTPROC) (GLenum, GLsizei, const GLvoid *); - -static GLFOGCOORDFEXTPROC glFogCoordf_ext; -#if ARRAYS -static GLFOGCOORDPOINTEREXTPROC glFogCoordPointer_ext; -#endif static GLboolean have_fog_coord; static GLfloat camz; -static GLuint texture[1]; static GLint fogMode; static GLboolean fogCoord; static GLfloat fogDensity = 0.75; -static GLfloat fogStart = 1.0, fogEnd = 40.0; +static GLfloat fogStart = 1.0, fogEnd = DEPTH; static GLfloat fogColor[4] = {0.6f, 0.3f, 0.0f, 1.0f}; +static const char *ModeStr = NULL; +static GLboolean Arrays = GL_FALSE; +static GLboolean Texture = GL_TRUE; -static void APIENTRY glFogCoordf_nop (GLfloat f) +static void +Reset(void) { - (void)f; + fogMode = 1; + fogCoord = 1; + fogDensity = 0.75; + fogStart = 1.0; + fogEnd = DEPTH; + Arrays = GL_FALSE; + Texture = GL_TRUE; } -static int BuildTexture (const char *filename, GLuint texid[]) +static void APIENTRY +glFogCoordf_nop (GLfloat f) { - GLubyte *tex_data; - GLenum tex_format; - GLint tex_width, tex_height; + (void)f; +} - tex_data = LoadRGBImage(filename, &tex_width, &tex_height, &tex_format); - if (tex_data == NULL) { - return -1; - } - { - GLint tex_max; - glGetIntegerv(GL_MAX_TEXTURE_SIZE, &tex_max); - if ((tex_width > tex_max) || (tex_height > tex_max)) { - return -1; - } +static void +PrintString(const char *s) +{ + while (*s) { + glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s); + s++; } +} - glGenTextures(1, texid); - - glBindTexture(GL_TEXTURE_2D, texid[0]); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - glTexImage2D(GL_TEXTURE_2D, 0, tex_format, tex_width, tex_height, 0, - tex_format, GL_UNSIGNED_BYTE, tex_data); - return 0; +static void +PrintInfo(void) +{ + char s[100]; + + glDisable(GL_FOG); + glColor3f(0, 1, 1); + + sprintf(s, "Mode(m): %s Start(s/S): %g End(e/E): %g Density(d/D): %g", + ModeStr, fogStart, fogEnd, fogDensity); + glWindowPos2iARB(5, 20); + PrintString(s); + + sprintf(s, "Arrays(a): %s glFogCoord(c): %s EyeZ(z/z): %g", + (Arrays ? "Yes" : "No"), + (fogCoord ? "Yes" : "No"), + camz); + glWindowPos2iARB(5, 5); + PrintString(s); } -static int SetFogMode (GLint fogMode) +static int +SetFogMode(GLint fogMode) { fogMode &= 3; switch (fogMode) { case 0: + ModeStr = "Off"; glDisable(GL_FOG); -#if VERBOSE - printf("fog(disable)\n"); -#endif break; case 1: + ModeStr = "GL_LINEAR"; glEnable(GL_FOG); glFogi(GL_FOG_MODE, GL_LINEAR); glFogf(GL_FOG_START, fogStart); glFogf(GL_FOG_END, fogEnd); -#if VERBOSE - printf("fog(GL_LINEAR, %.2f, %.2f)\n", fogStart, fogEnd); -#endif break; case 2: + ModeStr = "GL_EXP"; glEnable(GL_FOG); glFogi(GL_FOG_MODE, GL_EXP); glFogf(GL_FOG_DENSITY, fogDensity); -#if VERBOSE - printf("fog(GL_EXP, %.2f)\n", fogDensity); -#endif break; case 3: + ModeStr = "GL_EXP2"; glEnable(GL_FOG); glFogi(GL_FOG_MODE, GL_EXP2); glFogf(GL_FOG_DENSITY, fogDensity); -#if VERBOSE - printf("fog(GL_EXP2, %.2f)\n", fogDensity); -#endif break; } return fogMode; } -static GLboolean SetFogCoord (GLboolean fogCoord) +static GLboolean +SetFogCoord(GLboolean fogCoord) { glFogCoordf_ext = glFogCoordf_nop; if (!have_fog_coord) { -#if VERBOSE - printf("fog(GL_FRAGMENT_DEPTH_EXT)%s\n", fogCoord ? " EXT_fog_coord not available!" : ""); -#endif return GL_FALSE; } if (fogCoord) { - glFogCoordf_ext = (GLFOGCOORDFEXTPROC)glutGetProcAddress("glFogCoordfEXT"); + glFogCoordf_ext = (PFNGLFOGCOORDFEXTPROC)glutGetProcAddress("glFogCoordfEXT"); glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT); -#if VERBOSE - printf("fog(GL_FOG_COORDINATE_EXT)\n"); -#endif - } else { + } + else { glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FRAGMENT_DEPTH_EXT); -#if VERBOSE - printf("fog(GL_FRAGMENT_DEPTH_EXT)\n"); -#endif } return fogCoord; } -#if ARRAYS /* could reuse vertices */ static GLuint vertex_index[] = { /* Back */ @@ -172,19 +157,19 @@ static GLuint vertex_index[] = { static GLfloat vertex_pointer[][3] = { /* Back */ - {-2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH}, { 2.5f, 2.5f,-DEPTH}, {-2.5f, 2.5f,-DEPTH}, + {-1.0f,-1.0f,-DEPTH}, { 1.0f,-1.0f,-DEPTH}, { 1.0f, 1.0f,-DEPTH}, {-1.0f, 1.0f,-DEPTH}, /* Floor */ - {-2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f, DEPTH}, {-2.5f,-2.5f, DEPTH}, + {-1.0f,-1.0f,-DEPTH}, { 1.0f,-1.0f,-DEPTH}, { 1.0f,-1.0f, 0.0}, {-1.0f,-1.0f, 0.0}, /* Roof */ - {-2.5f, 2.5f,-DEPTH}, { 2.5f, 2.5f,-DEPTH}, { 2.5f, 2.5f, DEPTH}, {-2.5f, 2.5f, DEPTH}, + {-1.0f, 1.0f,-DEPTH}, { 1.0f, 1.0f,-DEPTH}, { 1.0f, 1.0f, 0.0}, {-1.0f, 1.0f, 0.0}, /* Right */ - { 2.5f,-2.5f, DEPTH}, { 2.5f, 2.5f, DEPTH}, { 2.5f, 2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH}, + { 1.0f,-1.0f, 0.0}, { 1.0f, 1.0f, 0.0}, { 1.0f, 1.0f,-DEPTH}, { 1.0f,-1.0f,-DEPTH}, /* Left */ - {-2.5f,-2.5f, DEPTH}, {-2.5f, 2.5f, DEPTH}, {-2.5f, 2.5f,-DEPTH}, {-2.5f,-2.5f,-DEPTH} + {-1.0f,-1.0f, 0.0}, {-1.0f, 1.0f, 0.0}, {-1.0f, 1.0f,-DEPTH}, {-1.0f,-1.0f,-DEPTH} }; static GLfloat texcoord_pointer[][2] = { @@ -192,118 +177,139 @@ static GLfloat texcoord_pointer[][2] = { {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}, /* Floor */ - {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}, + {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, DEPTH}, {0.0f, DEPTH}, /* Roof */ - {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}, + {1.0f, 0.0f}, {0.0f, 0.0f}, {0.0f, DEPTH}, {1.0f, DEPTH}, /* Right */ - {0.0f, 0.0f}, {0.0f, 1.0f}, {1.0f, 1.0f}, {1.0f, 0.0f}, + {0.0f, 1.0f}, {0.0f, 0.0f}, {DEPTH, 0.0f}, {DEPTH, 1.0f}, /* Left */ - {0.0f, 0.0f}, {0.0f, 1.0f}, {1.0f, 1.0f}, {1.0f, 0.0f} + {0.0f, 0.0f}, {0.0f, 1.0f}, {DEPTH, 1.0f}, {DEPTH, 0.0f} }; -static GLfloat fogcoord_pointer[][1] = { +static GLfloat fogcoord_pointer[] = { /* Back */ - {1.0f}, {1.0f}, {1.0f}, {1.0f}, + DEPTH, DEPTH, DEPTH, DEPTH, /* Floor */ - {1.0f}, {1.0f}, {0.0f}, {0.0f}, + DEPTH, DEPTH, 0.0, 0.0, /* Roof */ - {1.0f}, {1.0f}, {0.0f}, {0.0f}, + DEPTH, DEPTH, 0.0, 0.0, /* Right */ - {0.0f}, {0.0f}, {1.0f}, {1.0f}, + 0.0, 0.0, DEPTH, DEPTH, /* Left */ - {0.0f}, {0.0f}, {1.0f}, {1.0f} + 0.0, 0.0, DEPTH, DEPTH }; -#endif -static void Display( void ) +static void +Display( void ) { glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity (); - glTranslatef(0.0f, 0.0f, camz); + glTranslatef(0.0f, 0.0f, -camz); -#if ARRAYS - glDrawElements(GL_QUADS, sizeof(vertex_index) / sizeof(vertex_index[0]), GL_UNSIGNED_INT, vertex_index); -#else - /* Back */ - glBegin(GL_QUADS); - glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f,-DEPTH); - glEnd(); + SetFogMode(fogMode); - /* Floor */ - glBegin(GL_QUADS); - glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f,-2.5f, DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f,-2.5f, DEPTH); - glEnd(); + glColor3f(1, 1, 1); - /* Roof */ - glBegin(GL_QUADS); - glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f, 2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f, 2.5f,-DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f, DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f, DEPTH); - glEnd(); + if (Texture) + glEnable(GL_TEXTURE_2D); - /* Right */ - glBegin(GL_QUADS); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 2.5f,-2.5f, DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f( 2.5f, 2.5f, DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH); - glEnd(); + if (Arrays) { + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glDrawElements(GL_QUADS, sizeof(vertex_index) / sizeof(vertex_index[0]), + GL_UNSIGNED_INT, vertex_index); + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + } + else { + /* Back */ + glBegin(GL_QUADS); + glFogCoordf_ext(DEPTH); glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,-1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,-1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f,-DEPTH); + glEnd(); + + /* Floor */ + glBegin(GL_QUADS); + glFogCoordf_ext(DEPTH); glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,-1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,-1.0f,-DEPTH); + glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, DEPTH); glVertex3f( 1.0f,-1.0f,0.0); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, DEPTH); glVertex3f(-1.0f,-1.0f,0.0); + glEnd(); + + /* Roof */ + glBegin(GL_QUADS); + glFogCoordf_ext(DEPTH); glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, 1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, 1.0f,-DEPTH); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, DEPTH); glVertex3f( 1.0f, 1.0f,0.0); + glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, DEPTH); glVertex3f(-1.0f, 1.0f,0.0); + glEnd(); + + /* Right */ + glBegin(GL_QUADS); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,-1.0f,0.0); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, 1.0f,0.0); + glFogCoordf_ext(DEPTH); glTexCoord2f(DEPTH, 0.0f); glVertex3f( 1.0f, 1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(DEPTH, 1.0f); glVertex3f( 1.0f,-1.0f,-DEPTH); + glEnd(); + + /* Left */ + glBegin(GL_QUADS); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,-1.0f,0.0); + glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f,0.0); + glFogCoordf_ext(DEPTH); glTexCoord2f(DEPTH, 1.0f); glVertex3f(-1.0f, 1.0f,-DEPTH); + glFogCoordf_ext(DEPTH); glTexCoord2f(DEPTH, 0.0f); glVertex3f(-1.0f,-1.0f,-DEPTH); + glEnd(); + } - /* Left */ - glBegin(GL_QUADS); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f, DEPTH); - glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f, DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f(-2.5f, 2.5f,-DEPTH); - glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH); - glEnd(); -#endif + glDisable(GL_TEXTURE_2D); + + PrintInfo(); glutSwapBuffers(); } -static void Reshape( int width, int height ) +static void +Reshape( int width, int height ) { glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); - gluPerspective(45.0f, (GLfloat)(width)/(GLfloat)(height), 0.1f, 100.0f); + glFrustum(-1, 1, -1, 1, 1.0, 100); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } -static void Key( unsigned char key, int x, int y ) +static void +Key( unsigned char key, int x, int y ) { (void) x; (void) y; switch (key) { + case 'a': + Arrays = !Arrays; + break; case 'f': + case 'm': fogMode = SetFogMode(fogMode + 1); break; - case '+': - if (fogDensity < 1.0) { - fogDensity += 0.05; - } + case 'D': + fogDensity += 0.05; SetFogMode(fogMode); break; - case '-': + case 'd': if (fogDensity > 0.0) { fogDensity -= 0.05; } @@ -311,31 +317,43 @@ static void Key( unsigned char key, int x, int y ) break; case 's': if (fogStart > 0.0) { - fogStart -= 1.0; + fogStart -= 0.25; } SetFogMode(fogMode); break; case 'S': - if (fogStart < fogEnd) { - fogStart += 1.0; + if (fogStart < 100.0) { + fogStart += 0.25; } SetFogMode(fogMode); break; case 'e': - if (fogEnd > fogStart) { - fogEnd -= 1.0; + if (fogEnd > 0.0) { + fogEnd -= 0.25; } SetFogMode(fogMode); break; case 'E': if (fogEnd < 100.0) { - fogEnd += 1.0; + fogEnd += 0.25; } SetFogMode(fogMode); break; case 'c': fogCoord = SetFogCoord(fogCoord ^ GL_TRUE); break; + case 't': + Texture = !Texture; + break; + case 'z': + camz -= 0.1; + break; + case 'Z': + camz += 0.1; + break; + case 'r': + Reset(); + break; case 27: exit(0); break; @@ -344,37 +362,28 @@ static void Key( unsigned char key, int x, int y ) } -static void SpecialKey( int key, int x, int y ) +static void +Init(void) { - (void) x; - (void) y; - switch (key) { - case GLUT_KEY_UP: - if (camz < (DEPTH - 1.0)) { - camz += 1.0f; - } - break; - case GLUT_KEY_DOWN: - if (camz > -19.0) { - camz -= 1.0f; - } - break; - } - glutPostRedisplay(); -} + static const GLubyte teximage[2][2][4] = { + { { 255, 255, 255, 255}, { 128, 128, 128, 255} }, + { { 128, 128, 128, 255}, { 255, 255, 255, 255} } + }; + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); -static void Init( void ) -{ have_fog_coord = glutExtensionSupported("GL_EXT_fog_coord"); - - if (BuildTexture(TEXTURE_FILE, texture) == -1) { - exit(1); + if (!have_fog_coord) { + printf("GL_EXT_fog_coord not supported!\n"); } - glEnable(GL_TEXTURE_2D); - glClearColor(0.0f, 0.0f, 0.0f, 0.5f); - glClearDepth(1.0f); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, + GL_RGBA, GL_UNSIGNED_BYTE, teximage); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + + glClearColor(0.1f, 0.1f, 0.1f, 0.0f); + glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glShadeModel(GL_SMOOTH); @@ -383,11 +392,8 @@ static void Init( void ) glFogfv(GL_FOG_COLOR, fogColor); glHint(GL_FOG_HINT, GL_NICEST); fogCoord = SetFogCoord(GL_TRUE); /* try to enable fog_coord */ - fogMode = SetFogMode(2); /* GL_EXP */ - - camz = -19.0f; + fogMode = SetFogMode(1); -#if ARRAYS glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(3, GL_FLOAT, 0, vertex_pointer); @@ -395,24 +401,24 @@ static void Init( void ) glTexCoordPointer(2, GL_FLOAT, 0, texcoord_pointer); if (have_fog_coord) { - glFogCoordPointer_ext = (GLFOGCOORDPOINTEREXTPROC)glutGetProcAddress("glFogCoordPointerEXT"); + glFogCoordPointer_ext = (PFNGLFOGCOORDPOINTEREXTPROC)glutGetProcAddress("glFogCoordPointerEXT"); glEnableClientState(GL_FOG_COORDINATE_ARRAY_EXT); glFogCoordPointer_ext(GL_FLOAT, 0, fogcoord_pointer); } -#endif + + Reset(); } -int main( int argc, char *argv[] ) +int +main( int argc, char *argv[] ) { glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( 640, 480 ); + glutInitWindowSize( 600, 600 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow(argv[0]); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); - glutSpecialFunc( SpecialKey ); glutDisplayFunc( Display ); Init(); glutMainLoop(); diff --git a/progs/demos/fplight.c b/progs/demos/fplight.c index c7a38248d38..fb510cccc8a 100644 --- a/progs/demos/fplight.c +++ b/progs/demos/fplight.c @@ -24,7 +24,7 @@ static GLuint VertProg; static GLboolean Anim = GL_TRUE; static GLboolean Wire = GL_FALSE; static GLboolean PixelLight = GL_TRUE; - +static GLint Win; static GLfloat Xrot = 0, Yrot = 0; @@ -136,8 +136,8 @@ static void Key( unsigned char key, int x, int y ) } break; case 27: + glutDestroyWindow(Win); exit(0); - break; } glutPostRedisplay(); } @@ -272,7 +272,7 @@ int main( int argc, char *argv[] ) glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 200, 200 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); - glutCreateWindow(argv[0]); + Win = glutCreateWindow(argv[0]); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); glutSpecialFunc( SpecialKey ); diff --git a/progs/demos/fslight.c b/progs/demos/fslight.c index 736cc48ac67..e6d83bf8fb3 100644 --- a/progs/demos/fslight.c +++ b/progs/demos/fslight.c @@ -45,7 +45,7 @@ static GLint uTexture; static GLuint SphereList, RectList, CurList; static GLint win = 0; -static GLboolean anim = GL_FALSE; +static GLboolean anim = GL_TRUE; static GLboolean wire = GL_FALSE; static GLboolean pixelLight = GL_TRUE; @@ -58,7 +58,7 @@ static GLfloat xRot = 90.0f, yRot = 0.0f; static void normalize(GLfloat *dst, const GLfloat *src) { - GLfloat len = sqrtf(src[0] * src[0] + src[1] * src[1] + src[2] * src[2]); + GLfloat len = sqrt(src[0] * src[0] + src[1] * src[1] + src[2] * src[2]); dst[0] = src[0] / len; dst[1] = src[1] / len; dst[2] = src[2] / len; @@ -477,8 +477,8 @@ Init(void) version = (const char *) glGetString(GL_VERSION); if (version[0] != '2' || version[1] != '.') { - printf("Warning: this program expects OpenGL 2.0\n"); - /*exit(1);*/ + printf("This program requires OpenGL 2.x, found %s\n", version); + exit(1); } GetExtensionFuncs(); @@ -579,6 +579,8 @@ Init(void) #if 0 TestFunctions(); +#else + (void) TestFunctions; #endif } @@ -603,7 +605,7 @@ main(int argc, char *argv[]) { glutInit(&argc, argv); glutInitWindowPosition( 0, 0); - glutInitWindowSize(100, 100); + glutInitWindowSize(200, 200); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); win = glutCreateWindow(argv[0]); glutReshapeFunc(Reshape); diff --git a/progs/demos/shadowtex.c b/progs/demos/shadowtex.c index b32fb45b4fa..59253e8c1e3 100644 --- a/progs/demos/shadowtex.c +++ b/progs/demos/shadowtex.c @@ -9,6 +9,7 @@ * Added GL_EXT_packed_depth_stencil support on 15 March 2006. * Added GL_EXT_framebuffer_object support on 27 March 2006. * Removed old SGIX extension support on 5 April 2006. + * Added vertex / fragment program support on 7 June 2007 (Ian Romanick). * * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. * @@ -34,6 +35,7 @@ #include <assert.h> #include <stdio.h> #include <stdlib.h> +#include <string.h> #include <math.h> #include <GL/glut.h> #include "showbuffer.h" @@ -67,8 +69,27 @@ static GLboolean NeedNewShadowMap = GL_FALSE; static GLuint ShadowTexture, GrayTexture; static GLuint ShadowFBO; +static GLfloat lightModelview[16]; +static GLfloat lightProjection[16]; + +static GLuint vert_prog; +static GLuint frag_progs[3]; +static GLuint curr_frag = 0; +static GLuint max_frag = 1; + +#define NUM_FRAG_MODES 3 +static const char *FragProgNames[] = { + "fixed-function", + "program without \"OPTION ARB_fragment_program_shadow\"", + "program with \"OPTION ARB_fragment_program_shadow\"", +}; + static GLboolean HaveFBO = GL_FALSE; static GLboolean UseFBO = GL_FALSE; +static GLboolean HaveVP = GL_FALSE; +static GLboolean HaveFP = GL_FALSE; +static GLboolean HaveFP_Shadow = GL_FALSE; +static GLboolean UseVP = GL_FALSE; static GLboolean HavePackedDepthStencil = GL_FALSE; static GLboolean UsePackedDepthStencil = GL_FALSE; static GLboolean HaveEXTshadowFuncs = GL_FALSE; @@ -91,6 +112,103 @@ static GLuint DisplayMode; +#define MAT4_MUL(dest_vec, src_mat, src_vec) \ + "DP4 " dest_vec ".x, " src_mat "[0], " src_vec ";\n" \ + "DP4 " dest_vec ".y, " src_mat "[1], " src_vec ";\n" \ + "DP4 " dest_vec ".z, " src_mat "[2], " src_vec ";\n" \ + "DP4 " dest_vec ".w, " src_mat "[3], " src_vec ";\n" + +#define MAT3_MUL(dest_vec, src_mat, src_vec) \ + "DP3 " dest_vec ".x, " src_mat "[0], " src_vec ";\n" \ + "DP3 " dest_vec ".y, " src_mat "[1], " src_vec ";\n" \ + "DP3 " dest_vec ".z, " src_mat "[2], " src_vec ";\n" + +#define NORMALIZE(dest, src) \ + "DP3 " dest ".w, " src ", " src ";\n" \ + "RSQ " dest ".w, " dest ".w;\n" \ + "MUL " dest ", " src ", " dest ".w;\n" + +/** + * Vertex program for shadow mapping. + */ +static const char vert_code[] = + "!!ARBvp1.0\n" + "ATTRIB iPos = vertex.position;\n" + "ATTRIB iNorm = vertex.normal;\n" + + "PARAM mvinv[4] = { state.matrix.modelview.invtrans };\n" + "PARAM mvp[4] = { state.matrix.mvp };\n" + "PARAM mv[4] = { state.matrix.modelview };\n" + "PARAM texmat[4] = { state.matrix.texture[0] };\n" + "PARAM lightPos = state.light[0].position;\n" + "PARAM ambientCol = state.lightprod[0].ambient;\n" + "PARAM diffuseCol = state.lightprod[0].diffuse;\n" + + "TEMP n, lightVec;\n" + "ALIAS V = lightVec;\n" + "ALIAS NdotL = n;\n" + + "OUTPUT oPos = result.position;\n" + "OUTPUT oColor = result.color;\n" + "OUTPUT oTex = result.texcoord[0];\n" + + /* Transform the vertex to clip coordinates. */ + MAT4_MUL("oPos", "mvp", "iPos") + + /* Transform the vertex to eye coordinates. */ + MAT4_MUL("V", "mv", "iPos") + + /* Transform the vertex to projected light coordinates. */ + MAT4_MUL("oTex", "texmat", "iPos") + + /* Transform the normal to eye coordinates. */ + MAT3_MUL("n", "mvinv", "iNorm") + + /* Calculate the vector from the vertex to the light in eye + * coordinates. + */ + "SUB lightVec, lightPos, V;\n" + NORMALIZE("lightVec", "lightVec") + + /* Compute diffuse lighting coefficient. + */ + "DP3 NdotL.x, n, lightVec;\n" + "MAX NdotL.x, NdotL.x, {0.0};\n" + "MIN NdotL.x, NdotL.x, {1.0};\n" + + /* Accumulate color contributions. + */ + "MOV oColor, diffuseCol;\n" + "MAD oColor.xyz, NdotL.x, diffuseCol, ambientCol;\n" + "END\n" + ; + +static const char frag_code[] = + "!!ARBfp1.0\n" + + "TEMP shadow, temp;\n" + + "TXP shadow, fragment.texcoord[0], texture[0], 2D;\n" + "RCP temp.x, fragment.texcoord[0].w;\n" + "MUL temp.x, temp.x, fragment.texcoord[0].z;\n" + "SGE shadow, shadow.x, temp.x;\n" + "MUL result.color.rgb, fragment.color, shadow.x;\n" + "MOV result.color.a, fragment.color;\n" + "END\n" + ; + +static const char frag_shadow_code[] = + "!!ARBfp1.0\n" + "OPTION ARB_fragment_program_shadow;\n" + + "TEMP shadow;\n" + + "TXP shadow, fragment.texcoord[0], texture[0], SHADOW2D;\n" + "MUL result.color.rgb, fragment.color, shadow.x;\n" + "MOV result.color.a, fragment.color.a;\n" + "END\n" + ; + static void DrawScene(void) { @@ -134,27 +252,56 @@ DrawScene(void) } -/* - * Load the GL_TEXTURE matrix with the projection from the light - * source's point of view. +/** + * Calculate modelview and project matrices for the light + * + * Stores the results in \c lightProjection (projection matrix) and + * \c lightModelview (modelview matrix). */ static void MakeShadowMatrix(const GLfloat lightPos[4], const GLfloat spotDir[3], GLfloat spotAngle, GLfloat shadowNear, GLfloat shadowFar) { - GLfloat d; - - glMatrixMode(GL_TEXTURE); + /* compute frustum to enclose spot light cone */ + const GLfloat d = shadowNear * tan(spotAngle); + + glMatrixMode(GL_PROJECTION); + glPushMatrix(); glLoadIdentity(); - glTranslatef(0.5, 0.5, 0.5 + Bias); - glScalef(0.5, 0.5, 0.5); - d = shadowNear * tan(spotAngle); glFrustum(-d, d, -d, d, shadowNear, shadowFar); + glGetFloatv(GL_PROJECTION_MATRIX, lightProjection); + glPopMatrix(); + + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glLoadIdentity(); gluLookAt(lightPos[0], lightPos[1], lightPos[2], lightPos[0] + spotDir[0], lightPos[1] + spotDir[1], lightPos[2] + spotDir[2], - 0, 1, 0); + 0.0, 1.0, 0.0); + glGetFloatv(GL_MODELVIEW_MATRIX, lightModelview); + glPopMatrix(); +} + + +/** + * Load \c GL_TEXTURE matrix with light's MVP matrix. + */ +static void SetShadowTextureMatrix(void) +{ + static const GLfloat biasMatrix[16] = { + 0.5, 0.0, 0.0, 0.0, + 0.0, 0.5, 0.0, 0.0, + 0.0, 0.0, 0.5, 0.0, + 0.5, 0.5, 0.5, 1.0, + }; + + glMatrixMode(GL_TEXTURE); + glLoadMatrixf(biasMatrix); + glTranslatef(0.0, 0.0, Bias); + glMultMatrixf(lightProjection); + glMultMatrixf(lightModelview); glMatrixMode(GL_MODELVIEW); } @@ -258,7 +405,6 @@ RenderShadowMap(void) { GLenum depthFormat; /* GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT */ GLenum depthType; /* GL_UNSIGNED_INT_24_8_EXT or GL_UNSIGNED_INT */ - float d; if (WindowWidth >= 1024 && WindowHeight >= 1024) { ShadowTexWidth = ShadowTexHeight = 1024; @@ -283,27 +429,34 @@ RenderShadowMap(void) depthType = GL_UNSIGNED_INT; } - /* compute frustum to enclose spot light cone */ - d = ShadowNear * tan(SpotAngle); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glFrustum(-d, d, -d, d, ShadowNear, ShadowFar); + glLoadMatrixf(lightProjection); + glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - gluLookAt(LightPos[0], LightPos[1], LightPos[2], /* from */ - 0, 0, 0, /* target */ - 0, 1, 0); /* up */ + glLoadMatrixf(lightModelview); if (UseFBO) { + GLenum fbo_status; + glTexImage2D(GL_TEXTURE_2D, 0, depthFormat, ShadowTexWidth, ShadowTexHeight, 0, depthFormat, depthType, NULL); + + /* Set the filter mode so that the texture is texture-complete. + * Otherwise it will cause the framebuffer to fail the framebuffer + * completeness test. + */ + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, ShadowFBO); glDrawBuffer(GL_NONE); glReadBuffer(GL_NONE); - assert(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) - == GL_FRAMEBUFFER_COMPLETE_EXT); + + fbo_status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + if (fbo_status != GL_FRAMEBUFFER_COMPLETE_EXT) { + fprintf(stderr, "FBO not complete! status = 0x%04x\n", fbo_status); + assert(fbo_status == GL_FRAMEBUFFER_COMPLETE_EXT); + } } assert(!glIsEnabled(GL_TEXTURE_1D)); @@ -376,10 +529,8 @@ ShowShadowMap(void) DisableTexgen(); /* interpret texture's depth values as luminance values */ -#if defined(GL_ARB_shadow) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE_ARB, GL_LUMINANCE); -#endif glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glBegin(GL_POLYGON); @@ -407,6 +558,7 @@ Display(void) LightPos, SpotDir); if (NeedNewShadowMap) { + MakeShadowMatrix(LightPos, SpotDir, SpotAngle, ShadowNear, ShadowFar); RenderShadowMap(); NeedNewShadowMap = GL_FALSE; } @@ -444,12 +596,11 @@ Display(void) } if (DisplayMode == SHOW_DEPTH_MAPPING) { -#if defined(GL_ARB_shadow) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE); -#endif glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glEnable(GL_TEXTURE_2D); - MakeShadowMatrix(LightPos, SpotDir, SpotAngle, ShadowNear, ShadowFar); + + SetShadowTextureMatrix(); EnableIdentityTexgen(); } else if (DisplayMode == SHOW_DISTANCE) { @@ -463,20 +614,42 @@ Display(void) } else { assert(DisplayMode == SHOW_SHADOWS); -#if defined(GL_ARB_shadow) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB); -#endif - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + if (curr_frag > 0) { + glEnable(GL_FRAGMENT_PROGRAM_ARB); + } + else { + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + } glEnable(GL_TEXTURE_2D); - MakeShadowMatrix(LightPos, SpotDir, SpotAngle, ShadowNear, ShadowFar); - EnableIdentityTexgen(); + + SetShadowTextureMatrix(); + + if (UseVP) { + glEnable(GL_VERTEX_PROGRAM_ARB); + } + else { + glEnable(GL_LIGHTING); + EnableIdentityTexgen(); + } } DrawScene(); - DisableTexgen(); - glDisable(GL_TEXTURE_1D); + if (UseVP) { + glDisable(GL_VERTEX_PROGRAM_ARB); + } + else { + DisableTexgen(); + glDisable(GL_LIGHTING); + } + + if (curr_frag > 0) { + glDisable(GL_FRAGMENT_PROGRAM_ARB); + } + glDisable(GL_TEXTURE_2D); } @@ -548,6 +721,14 @@ Key(unsigned char key, int x, int y) case 'm': DisplayMode = SHOW_DEPTH_MAPPING; break; + case 'M': + curr_frag = (1 + curr_frag) % max_frag; + printf("Using fragment %s\n", FragProgNames[curr_frag]); + + if (HaveFP) { + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, frag_progs[curr_frag]); + } + break; case 'n': case 's': case ' ': @@ -559,10 +740,8 @@ Key(unsigned char key, int x, int y) if (Operator >= 8) Operator = 0; printf("Operator: %s\n", OperatorName[Operator]); -#if defined(GL_ARB_shadow) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, OperatorFunc[Operator]); -#endif } break; case 'p': @@ -579,6 +758,11 @@ Key(unsigned char key, int x, int y) NeedNewShadowMap = GL_TRUE; } break; + case 'v': + UseVP = !UseVP && HaveVP; + printf("Using vertex %s mode.\n", + UseVP ? "program" : "fixed-function"); + break; case 'z': Zrot -= step; break; @@ -633,28 +817,62 @@ SpecialKey(int key, int x, int y) } +/* A helper for finding errors in program strings */ +static int FindLine( const char *program, int position ) +{ + int i, line = 1; + for (i = 0; i < position; i++) { + if (program[i] == '\n') + line++; + } + return line; +} + + +static GLuint +compile_program(GLenum target, const char *code) +{ + GLuint p; + GLint errorPos; + + + glGenProgramsARB(1, & p); + + glBindProgramARB(target, p); + glProgramStringARB(target, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(code), code); + glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorPos); + if (glGetError() != GL_NO_ERROR || errorPos != -1) { + int l = FindLine(code, errorPos); + printf("Fragment Program Error (pos=%d line=%d): %s\n", errorPos, l, + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + exit(0); + } + + glBindProgramARB(target, 0); + return p; +} + static void Init(void) { static const GLfloat borderColor[4] = {1.0, 0.0, 0.0, 0.0}; -#if defined(GL_ARB_depth_texture) && defined(GL_ARB_shadow) if (!glutExtensionSupported("GL_ARB_depth_texture") || !glutExtensionSupported("GL_ARB_shadow")) { -#else - if (1) { -#endif printf("Sorry, this demo requires the GL_ARB_depth_texture and GL_ARB_shadow extensions\n"); exit(1); } printf("Using GL_ARB_depth_texture and GL_ARB_shadow\n"); -#if defined(GL_ARB_shadow_ambient) + HaveVP = glutExtensionSupported("GL_ARB_vertex_program"); + HaveFP = glutExtensionSupported("GL_ARB_fragment_program"); + HaveFP_Shadow = glutExtensionSupported("GL_ARB_fragment_program_shadow"); + HaveShadowAmbient = glutExtensionSupported("GL_ARB_shadow_ambient"); if (HaveShadowAmbient) { printf("and GL_ARB_shadow_ambient\n"); } -#endif HaveEXTshadowFuncs = glutExtensionSupported("GL_EXT_shadow_funcs"); @@ -677,15 +895,12 @@ Init(void) glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); -#if defined(GL_ARB_shadow) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL); -#endif + if (HaveShadowAmbient) { -#if defined(GL_ARB_shadow_ambient) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, 0.3); -#endif } #if defined(GL_EXT_framebuffer_object) @@ -720,6 +935,25 @@ Init(void) 256, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, image); } + if (HaveVP) { + vert_prog = compile_program(GL_VERTEX_PROGRAM_ARB, vert_code); + glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vert_prog); + } + + max_frag = 1; + frag_progs[0] = 0; + + if (HaveFP) { + frag_progs[1] = compile_program(GL_FRAGMENT_PROGRAM_ARB, frag_code); + max_frag = 2; + } + + if (HaveFP && HaveFP_Shadow) { + frag_progs[2] = compile_program(GL_FRAGMENT_PROGRAM_ARB, + frag_shadow_code); + max_frag = 3; + } + glEnable(GL_DEPTH_TEST); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); @@ -738,6 +972,8 @@ PrintHelp(void) printf(" f = toggle nearest/bilinear texture filtering\n"); printf(" b/B = decrease/increase shadow map Z bias\n"); printf(" p = toggle use of packed depth/stencil\n"); + printf(" M = cycle through fragment program modes\n"); + printf(" v = toggle vertex program modes\n"); printf(" cursor keys = rotate scene\n"); printf(" <shift> + cursor keys = rotate light source\n"); if (HaveEXTshadowFuncs) diff --git a/progs/demos/spriteblast.c b/progs/demos/spriteblast.c index f0d3d0dfd41..5ad8e4d9a94 100644 --- a/progs/demos/spriteblast.c +++ b/progs/demos/spriteblast.c @@ -333,13 +333,13 @@ menu(int option) smooth = 0; break; case 10: - glPointSize(4.0); + glPointSize(16.0); break; case 11: - glPointSize(8.0); + glPointSize(32.0); break; case 12: - glPointSize(16.0); + glPointSize(64.0); break; case 13: spin = 1 - spin; @@ -411,19 +411,19 @@ key(unsigned char c, int x, int y) glutPostRedisplay(); break; case '1': - glPointSize(2.0); + glPointSize(16.0); glutPostRedisplay(); break; case '2': - glPointSize(4.0); + glPointSize(32.0); glutPostRedisplay(); break; case '3': - glPointSize(8.0); + glPointSize(64.0); glutPostRedisplay(); break; case '4': - glPointSize(16.0); + glPointSize(128.0); glutPostRedisplay(); break; case 27: @@ -526,9 +526,9 @@ main(int argc, char **argv) glutAddMenuEntry("Threshold 10", 7); glutAddMenuEntry("Point smooth on", 8); glutAddMenuEntry("Point smooth off", 9); - glutAddMenuEntry("Point size 4", 10); - glutAddMenuEntry("Point size 8", 11); - glutAddMenuEntry("Point size 16", 12); + glutAddMenuEntry("Point size 16", 10); + glutAddMenuEntry("Point size 32", 11); + glutAddMenuEntry("Point size 64", 12); glutAddMenuEntry("Toggle spin", 13); glutAddMenuEntry("200 points ", 14); glutAddMenuEntry("500 points ", 15); @@ -544,7 +544,7 @@ main(int argc, char **argv) glEnable(GL_DEPTH_TEST); glEnable(GL_POINT_SMOOTH); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glPointSize(16.0); + glPointSize(32.0); #ifdef GL_ARB_point_parameters glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad); #endif diff --git a/progs/demos/tessdemo.c b/progs/demos/tessdemo.c index 26403eee0a2..f71cea12744 100644 --- a/progs/demos/tessdemo.c +++ b/progs/demos/tessdemo.c @@ -4,10 +4,10 @@ * Updated for GLU 1.3 tessellation by Gareth Hughes <[email protected]> */ -#include <GL/glut.h> #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <GL/glut.h> #define MAX_POINTS 256 #define MAX_CONTOURS 32 |