Files
mips/src/main_polypin.c
T
jens b454e8dd00 - fixed libsys includes
git-svn-id: http://moon:8086/svn/mips@201 a8ebac50-d88d-4704-bea3-6648445a41b3
2021-11-23 18:42:38 +00:00

161 lines
4.4 KiB
C

/* Copyrighted Pixar 1989 */
/* From the RenderMan Companion p. 168 */
/* Listing 8.5 An improved boilerplate viewing program */
#include <stdio.h>
#include <jman/ri.h>
#include <jman/camset.h>
#include <jman/polys.h>
/* viewbasics.c: file compiling view options into a rendering shell. */
#define DATATYPE RI_RGBA /* Pixels have RGB and coverage */
#define SHADINGRATE 20.0
#define PICXRES 800.0 /* Horizontal output resolution */
#define PICYRES 600.0 /* Vertical output resolution */
#define CROPMINX 0.0 /* RiCropWindow() parameters */
#define CROPMAXX 1.0
#define CROPMINY 0.0
#define CROPMAXY 1.0
#define CAMXFROM 0.0 /* Camera position */
#define CAMYFROM 0.0
#define CAMZFROM -2.0
#define CAMXTO 0.5 /* Camera direction */
#define CAMYTO 0.0
#define CAMZTO 1.0
#define CAMROLL 0.0 /* Camera roll */
#define CAMZOOM 0.5 /* Camera zoom rate */
//--------------------------------------------------------------------
RtPoint CameraFrom = { CAMXFROM, CAMYFROM, CAMZFROM },
CameraTo = { CAMXTO, CAMYTO, CAMZTO };
RtPoint Square[4] = { {.5,.5,0}, {.5,-.5,0}, {-.5,-.5,0}, {-.5,.5,0} };
static RtColor Color = { .6, .8, .2 };
#define L -.5 /* For x: left side */
#define R .5 /* For x: right side */
#define D -.5 /* For y: down side */
#define U .5 /* For y: upper side */
#define F .5 /* For z: far side */
#define N -.5 /* For z: near side */
/* UnitCube(): define a cube in the graphics environment */
void UnitCube()
{
static RtPoint Cube[6][4] = {
{ {L,D,F}, {L,D,N}, {R,D,N}, {R,D,F} }, /* Bottom face */
{ {L,D,F}, {L,U,F}, {L,U,N}, {L,D,N} }, /* Left face */
{ {R,U,N}, {L,U,N}, {L,U,F}, {R,U,F} }, /* Top face */
{ {R,U,N}, {R,U,F}, {R,D,F}, {R,D,N} }, /* Right face */
{ {R,D,F}, {R,U,F}, {L,U,F}, {L,D,F} }, /* Far face */
{ {L,U,N}, {R,U,N}, {R,D,N}, {L,D,N} } /* Near face */
};
int i;
for( i = 0; i < 6; i++) /* Declare the cube */
RiPolygon( (RtInt) 4, RI_P, (RtPointer) Cube[i], RI_NULL);
}
//--------------------------------------------------------------------
#define NPOINTS 16
Point2D points[NPOINTS] = {
{1.5000,.0000},
{1.4600,.0900},
{1.3500,.1273},
{1.2625,.1203},
{1.1750,.1047},
{1.0875,.0935},
{1.0000,.0899},
{0.9375,.0982},
{0.8625,.1236},
{0.7250,.1851},
{0.5875,.2281},
{0.4500,.2383},
{0.3375,.2255},
{0.2250,.1953},
{0.0750,.1414},
{0.0000,.1125}
};
RtColor colors[NPOINTS] = {
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5},
{.9,.9,.5}
};
RtColor color = {.9,.9,.5};
void Go(void)
{
RiColor(color);
/*RiTranslate(0.0,-0.5,0.0);*/
RiRotate(-90.0, 1.0, 0.0, 0.0);
PolySurfOR(points, colors, NPOINTS);
}
int main()
{
RiBegin(RI_NULL); /* As always */
/* Output image characteristics */
RiDisplay(RI_NULL, RI_FRAMEBUFFER, DATATYPE, RI_NULL);
RiShadingRate(SHADINGRATE);
RiFormat((RtInt)PICXRES, (RtInt)PICYRES, -1.0); /* Image resolution */
RiTransformBegin();
RiRotate(30, 1.0, 0.0, 0.0);
RiLightSource( "distantlight", RI_NULL);
RiTransformEnd();
/* Region of image rendered */
RiCropWindow(CROPMINX, CROPMAXX, CROPMINY, CROPMAXY);
FrameCamera2(PICXRES*CAMZOOM, PICXRES, PICYRES);
// RiFrameAspectRatio(1.83);
/* Camera position and orientation */
CameraTo[0] -= CameraFrom[0];
CameraTo[1] -= CameraFrom[1];
CameraTo[2] -= CameraFrom[2];
PlaceCamera(CameraFrom, CameraTo, CAMROLL);
RiClipping(1E-3, RI_INFINITY); /* Clipping planes*/
// RiRotate(-40, 3.0, 2.0, 1.0);
/* Now describe the world */
RiWorldBegin();
/* ...Your scene here... */
RiSurface("matte", RI_NULL);
RiColor(Color); /* Declare the color */
// RiRotate(10, 0.0, 1.0, 0.0);
RiTranslate(0, -1.0, 0.0);
// RiScale(2.0, 1.0, 1.0);
// RiPatch(RI_BICUBIC, RI_P, (RtPointer)Square, RI_NULL);
// RiPatch(RI_BILINEAR, RI_P, (RtPointer)Square, RI_NULL);
UnitCube();
// RiPointsPolygons(1, (RtInt*)&nverts, verts, RI_P, (RtPointer)Square, RI_NULL);
RiTranslate(0, 0.5, 0.0);
Go();
RiWorldEnd();
RiEnd();
return 0;
}