--- /dev/null
+!!ARBvp1.0
+TEMP R0;
+ADD result.color, vertex.color, {.5}.x;
+MOV result.position, vertex.position;
+END
--- /dev/null
+!!ARBvp1.0
+PARAM arr[5] = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9}, {.2,0,.4,.1}, {.6,.1,.8,.9}};
+ADDRESS addr;
+ARL addr.x, {3}.x;
+MOV result.color, arr[addr.x];
+MOV result.position, vertex.position;
+END
--- /dev/null
+!!ARBvp1.0
+PARAM arr[5] = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9}, {.2,0,.4,.1}, {.6,.1,.8,.9}};
+ADDRESS addr;
+ARL addr.x, {3}.x; # not actually used
+MOV result.color, arr[3];
+MOV result.position, vertex.position;
+END
--- /dev/null
+!!ARBvp1.0
+TEMP R0;
+EXP R0, vertex.color.x;
+SUB result.color, R0.z, {1.0}.x;
+MOV result.position, vertex.position;
+END
--- /dev/null
+!!ARBvp1.0
+TEMP R0;
+MOV R0.xz, vertex.color;
+MOV R0.yw, {0.5}.x;
+MOV result.color, R0;
+MOV result.position, vertex.position;
+END
static const char *filename = NULL;
static GLuint nr_steps = 4;
+static GLuint prim = GL_TRIANGLES;
+static GLfloat psz = 1.0;
static void usage( char *name )
{
{
glClearColor(0.3, 0.3, 0.3, 1);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+ glPointSize(psz);
- glBegin(GL_TRIANGLES);
+ glBegin(prim);
{
(void) x;
(void) y;
switch (key) {
- case 27:
- exit(0);
- break;
+ case 'p':
+ prim = GL_POINTS;
+ break;
+ case 't':
+ prim = GL_TRIANGLES;
+ break;
+ case 's':
+ psz += .5;
+ break;
+ case 'S':
+ if (psz > .5)
+ psz -= .5;
+ break;
+ case '+':
+ nr_steps++;
+ break;
+ case '-':
+ if (nr_steps)
+ nr_steps--;
+ break;
+ case ' ':
+ psz = 1.0;
+ prim = GL_TRIANGLES;
+ nr_steps = 4;
+ break;
+ case 27:
+ exit(0);
+ break;
}
glutPostRedisplay();
}