From e516654dec111d8d781013ee537d5b37042fa933 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Fri, 21 Oct 2005 18:34:22 +0000 Subject: [PATCH] new depth tests --- progs/fp/tri-depth.c | 111 +++++++++++++++++++++++++++++++++++ progs/fp/tri-depth2.c | 116 +++++++++++++++++++++++++++++++++++++ progs/fp/tri-depthwrite.c | 107 ++++++++++++++++++++++++++++++++++ progs/fp/tri-depthwrite2.c | 107 ++++++++++++++++++++++++++++++++++ 4 files changed, 441 insertions(+) create mode 100644 progs/fp/tri-depth.c create mode 100644 progs/fp/tri-depth2.c create mode 100644 progs/fp/tri-depthwrite.c create mode 100644 progs/fp/tri-depthwrite2.c diff --git a/progs/fp/tri-depth.c b/progs/fp/tri-depth.c new file mode 100644 index 00000000000..a1f0579c8e1 --- /dev/null +++ b/progs/fp/tri-depth.c @@ -0,0 +1,111 @@ + +#include +#include +#include +#define GL_GLEXT_PROTOTYPES +#include +#include "GL/gl.h" + + + +static void Init( void ) +{ + /* scale of 10.0 gives me a visible result on nv hardware. + */ + static const char *modulate2D = + "!!ARBfp1.0\n" + "MUL result.color, fragment.position.z, {10.0}.x; \n" + "END" + ; + GLuint modulateProg; + + if (!glutExtensionSupported("GL_ARB_fragment_program")) { + printf("Error: GL_ARB_fragment_program not supported!\n"); + exit(1); + } + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + /* Setup the fragment program */ + glGenProgramsARB(1, &modulateProg); + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg); + glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(modulate2D), (const GLubyte *)modulate2D); + + printf("glGetError = 0x%x\n", (int) glGetError()); + printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n", + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + + glEnable(GL_FRAGMENT_PROGRAM_ARB); + + glClearColor(.3, .3, .3, 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); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,1); + glVertex3f( 0.9, -0.9, -40.0); + glColor3f(1,0,0); + glVertex3f( 0.9, 0.9, -40.0); + glColor3f(0,1,0); + glVertex3f(-0.9, 0.0, -25.0); + glEnd(); + + glFlush(); + + +} + + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB; + type |= GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/fp/tri-depth2.c b/progs/fp/tri-depth2.c new file mode 100644 index 00000000000..f3096282833 --- /dev/null +++ b/progs/fp/tri-depth2.c @@ -0,0 +1,116 @@ + +#include +#include +#include +#define GL_GLEXT_PROTOTYPES +#include +#include "GL/gl.h" + + + +static void Init( void ) +{ + /* scale of 10.0 gives me a visible result on nv hardware. + */ + static const char *modulate2D = + "!!ARBfp1.0\n" + "TEMP R0;\n" + "MUL R0, fragment.position.z, {10.0}.x;\n" + "MOV result.color, R0; \n" + "END" + ; + GLuint modulateProg; + + if (!glutExtensionSupported("GL_ARB_fragment_program")) { + printf("Error: GL_ARB_fragment_program not supported!\n"); + exit(1); + } + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + /* Setup the fragment program */ + glGenProgramsARB(1, &modulateProg); + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg); + glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(modulate2D), (const GLubyte *)modulate2D); + + printf("glGetError = 0x%x\n", (int) glGetError()); + printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n", + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + + glEnable(GL_FRAGMENT_PROGRAM_ARB); + + glClearColor(.3, .3, .3, 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); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + glEnable(GL_DEPTH_TEST); + + glBegin(GL_TRIANGLES); + glColor3f(0,0,1); + glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.0, -30.0); + glColor3f(0,1,0); + glVertex3f(-0.9, -0.9, -40.0); + glVertex3f(-0.9, 0.9, -40.0); + glVertex3f( 0.9, 0.0, -25.0); + glEnd(); + + glFlush(); + + +} + + +int main(int argc, char **argv) +{ + GLenum type; + + glutInit(&argc, argv); + + + + glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); + + type = GLUT_RGB | GLUT_DEPTH; + type |= GLUT_SINGLE; + glutInitDisplayMode(type); + + if (glutCreateWindow("First Tri") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/fp/tri-depthwrite.c b/progs/fp/tri-depthwrite.c new file mode 100644 index 00000000000..fedeec4577d --- /dev/null +++ b/progs/fp/tri-depthwrite.c @@ -0,0 +1,107 @@ + +#include +#include +#include +#define GL_GLEXT_PROTOTYPES +#include + + +static void Init(void) +{ + static const char *modulate2D = + "!!ARBfp1.0\n" + "MUL result.depth.z, fragment.color.z, {.1}.x; \n" + "MOV result.color.xy, fragment.color; \n" + "END" + ; + GLuint modulateProg; + + if (!glutExtensionSupported("GL_ARB_fragment_program")) { + printf("Error: GL_ARB_fragment_program not supported!\n"); + exit(1); + } + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + /* Setup the fragment program */ + glGenProgramsARB(1, &modulateProg); + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg); + glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(modulate2D), (const GLubyte *)modulate2D); + + printf("glGetError = 0x%x\n", (int) glGetError()); + printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n", + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + + glEnable(GL_FRAGMENT_PROGRAM_ARB); + + glClearColor(.3, .3, .3, 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); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + glEnable(GL_DEPTH_TEST); + + + glBegin(GL_TRIANGLES); + glColor4f(.8,0,.5,0); + glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.0, -30.0); + + glColor4f(0,.8,.7,0); + glVertex3f(-0.9, -0.9, -40.0); + glColor4f(0,.8,.7,0); + glVertex3f(-0.9, 0.9, -40.0); + glColor4f(0,.8,.3,0); + glVertex3f( 0.9, 0.0, -40.0); + glEnd(); + + glFlush(); +} + + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE); + + if (glutCreateWindow("Depth Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} diff --git a/progs/fp/tri-depthwrite2.c b/progs/fp/tri-depthwrite2.c new file mode 100644 index 00000000000..5547092ec9b --- /dev/null +++ b/progs/fp/tri-depthwrite2.c @@ -0,0 +1,107 @@ + +#include +#include +#include +#define GL_GLEXT_PROTOTYPES +#include + + +static void Init(void) +{ + static const char *modulate2D = + "!!ARBfp1.0\n" + "MUL result.depth.z, fragment.color.z, {.1}.x; \n" + "MOV result.color, fragment.color.z; \n" + "END" + ; + GLuint modulateProg; + + if (!glutExtensionSupported("GL_ARB_fragment_program")) { + printf("Error: GL_ARB_fragment_program not supported!\n"); + exit(1); + } + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + /* Setup the fragment program */ + glGenProgramsARB(1, &modulateProg); + glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg); + glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(modulate2D), (const GLubyte *)modulate2D); + + printf("glGetError = 0x%x\n", (int) glGetError()); + printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n", + (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + + glEnable(GL_FRAGMENT_PROGRAM_ARB); + + glClearColor(.3, .3, .3, 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); + default: + return; + } + + glutPostRedisplay(); +} + +static void Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + glEnable(GL_DEPTH_TEST); + + + glBegin(GL_TRIANGLES); + glColor4f(.8,0,.5,0); + glVertex3f( 0.9, -0.9, -30.0); + glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, 0.0, -30.0); + + glColor4f(0,.8,.7,0); + glVertex3f(-0.9, -0.9, -40.0); + glColor4f(0,.8,.7,0); + glVertex3f(-0.9, 0.9, -40.0); + glColor4f(0,.8,.3,0); + glVertex3f( 0.9, 0.0, -40.0); + glEnd(); + + glFlush(); +} + + +int main(int argc, char **argv) +{ + glutInit(&argc, argv); + + glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); + + glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE); + + if (glutCreateWindow("Depth Test") == GL_FALSE) { + exit(1); + } + + Init(); + + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + glutMainLoop(); + return 0; +} -- 2.30.2