add 3d gouraud cube example
This commit is contained in:
parent
452a074976
commit
a60ce464b4
4
Makefile
4
Makefile
@ -91,7 +91,11 @@ SRCS = hello_world.c \
|
|||||||
#~ SRCS = fun_with_poly.c \
|
#~ SRCS = fun_with_poly.c \
|
||||||
#~ ../common/crt0/crt0.s \
|
#~ ../common/crt0/crt0.s \
|
||||||
|
|
||||||
|
#~ TARGET = hello_cube
|
||||||
|
#~ TYPE = ps-exe
|
||||||
|
|
||||||
|
#~ SRCS = hello_cube.c \
|
||||||
|
#~ ../common/crt0/crt0.s \
|
||||||
|
|
||||||
CPPFLAGS += -I../psyq/include
|
CPPFLAGS += -I../psyq/include
|
||||||
LDFLAGS += -L../psyq/lib
|
LDFLAGS += -L../psyq/lib
|
||||||
|
|||||||
BIN
cube.blend
Normal file
BIN
cube.blend
Normal file
Binary file not shown.
87
cube.c
Normal file
87
cube.c
Normal file
@ -0,0 +1,87 @@
|
|||||||
|
SVECTOR modelCube_mesh[] = {
|
||||||
|
{20.0,19.999998807907104,-20.0},
|
||||||
|
{20.0,-20.0,-20.0},
|
||||||
|
{-20.00000238418579,-19.999996423721313,-20.0},
|
||||||
|
{-19.999992847442627,20.000007152557373,-20.0},
|
||||||
|
{20.000009536743164,19.99998927116394,20.0},
|
||||||
|
{19.99998688697815,-20.000011920928955,20.0},
|
||||||
|
{-20.000007152557373,-19.999992847442627,20.0},
|
||||||
|
{-19.999998807907104,20.0,20.0}
|
||||||
|
};
|
||||||
|
|
||||||
|
SVECTOR modelCube_normal[] = {
|
||||||
|
0.0,-0.0,-1.0,0,
|
||||||
|
0.0,0.0,1.0,0,
|
||||||
|
1.0,0.0,-2.384185791015625e-07,0,
|
||||||
|
-8.940696716308594e-08,-1.0,-2.9802325229866256e-07,0,
|
||||||
|
-1.0,2.384185791015625e-07,-1.4901158351676713e-07,0,
|
||||||
|
2.6822084464583895e-07,1.0,2.3841852225814364e-07,0,
|
||||||
|
0.0,0.0,-1.0,0,
|
||||||
|
0.0,-0.0,1.0,0,
|
||||||
|
1.0,-5.662441253662109e-07,3.2782537573439186e-07,0,
|
||||||
|
-4.768372150465439e-07,-1.0,8.940690321423972e-08,0,
|
||||||
|
-1.0,2.0861631355728605e-07,-1.1920931797249068e-07,0,
|
||||||
|
2.0861631355728605e-07,1.0,1.7881397695873602e-07,0
|
||||||
|
};
|
||||||
|
|
||||||
|
CVECTOR modelCube_color[] = {
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
54,65,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,5,7, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
4,18,255, 0,
|
||||||
|
255,5,7, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
254,255,23, 0,
|
||||||
|
122,255,107, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
254,255,94, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
35,255,11, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,5,7, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,5,7, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,5,7, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
254,255,23, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
122,255,107, 0,
|
||||||
|
255,255,255, 0,
|
||||||
|
54,65,255, 0,
|
||||||
|
255,255,255, 0
|
||||||
|
};
|
||||||
|
|
||||||
|
int modelCube_index[] = {
|
||||||
|
0,2,3,
|
||||||
|
7,5,4,
|
||||||
|
4,1,0,
|
||||||
|
5,2,1,
|
||||||
|
2,7,3,
|
||||||
|
0,7,4,
|
||||||
|
0,1,2,
|
||||||
|
7,6,5,
|
||||||
|
4,5,1,
|
||||||
|
5,6,2,
|
||||||
|
2,6,7,
|
||||||
|
0,3,7
|
||||||
|
};
|
||||||
|
|
||||||
|
TMESH modelCube = {
|
||||||
|
modelCube_mesh,
|
||||||
|
modelCube_normal,
|
||||||
|
0,
|
||||||
|
modelCube_color,
|
||||||
|
12
|
||||||
|
};
|
||||||
256
hello_cube.c
Normal file
256
hello_cube.c
Normal file
@ -0,0 +1,256 @@
|
|||||||
|
|
||||||
|
/* primdrawG.c, by Schnappy, 12-2020
|
||||||
|
|
||||||
|
- Draw a gouraud shaded mesh exported as a TMESH by the blender <= 2.79b plugin io_export_psx_tmesh.py
|
||||||
|
|
||||||
|
based on primdraw.c by Lameguy64 (http://www.psxdev.net/forum/viewtopic.php?f=64&t=537)
|
||||||
|
2014 Meido-Tek Productions.
|
||||||
|
|
||||||
|
Demonstrates:
|
||||||
|
- Using a primitive OT to draw triangles without libgs.
|
||||||
|
- Using the GTE to rotate, translate, and project 3D primitives.
|
||||||
|
|
||||||
|
Controls:
|
||||||
|
Start - Toggle interactive/non-interactive mode.
|
||||||
|
Select - Reset object's position and angles.
|
||||||
|
L1/L2 - Move object closer/farther.
|
||||||
|
L2/R2 - Rotate object (XY).
|
||||||
|
Up/Down/Left/Right - Rotate object (XZ/YZ).
|
||||||
|
Triangle/Cross/Square/Circle - Move object up/down/left/right.
|
||||||
|
|
||||||
|
*/
|
||||||
|
/* PSX screen coordinate system
|
||||||
|
*
|
||||||
|
* Z+
|
||||||
|
* /
|
||||||
|
* /
|
||||||
|
* +------X+
|
||||||
|
* /|
|
||||||
|
* / |
|
||||||
|
* / Y+
|
||||||
|
* eye */
|
||||||
|
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <libgte.h>
|
||||||
|
#include <libgpu.h>
|
||||||
|
#include <libetc.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
// Sample vector model
|
||||||
|
#include "cube.c"
|
||||||
|
|
||||||
|
#define VMODE 0
|
||||||
|
|
||||||
|
#define SCREENXRES 320
|
||||||
|
#define SCREENYRES 240
|
||||||
|
|
||||||
|
#define CENTERX SCREENXRES/2
|
||||||
|
#define CENTERY SCREENYRES/2
|
||||||
|
|
||||||
|
#define OTLEN 2048 // Maximum number of OT entries
|
||||||
|
#define PRIMBUFFLEN 32768 // Maximum number of POLY_GT3 primitives
|
||||||
|
|
||||||
|
// Display and draw environments, double buffered
|
||||||
|
DISPENV disp[2];
|
||||||
|
DRAWENV draw[2];
|
||||||
|
|
||||||
|
u_long ot[2][OTLEN]; // Ordering table (contains addresses to primitives)
|
||||||
|
char primbuff[2][PRIMBUFFLEN] = {0}; // Primitive list // That's our prim buffer
|
||||||
|
|
||||||
|
char * nextpri = primbuff[0]; // Primitive counter
|
||||||
|
|
||||||
|
short db = 0; // Current buffer counter
|
||||||
|
|
||||||
|
// Prototypes
|
||||||
|
void init(void);
|
||||||
|
void display(void);
|
||||||
|
//~ void LoadTexture(u_long * tim, TIM_IMAGE * tparam);
|
||||||
|
|
||||||
|
void init(){
|
||||||
|
// Reset the GPU before doing anything and the controller
|
||||||
|
PadInit(0);
|
||||||
|
ResetGraph(0);
|
||||||
|
|
||||||
|
// Initialize and setup the GTE
|
||||||
|
InitGeom();
|
||||||
|
SetGeomOffset(CENTERX, CENTERY); // x, y offset
|
||||||
|
SetGeomScreen(CENTERX); // Distance between eye and screen
|
||||||
|
|
||||||
|
// Set the display and draw environments
|
||||||
|
SetDefDispEnv(&disp[0], 0, 0 , SCREENXRES, SCREENYRES);
|
||||||
|
SetDefDispEnv(&disp[1], 0, SCREENYRES, SCREENXRES, SCREENYRES);
|
||||||
|
|
||||||
|
SetDefDrawEnv(&draw[0], 0, SCREENYRES, SCREENXRES, SCREENYRES);
|
||||||
|
SetDefDrawEnv(&draw[1], 0, 0, SCREENXRES, SCREENYRES);
|
||||||
|
|
||||||
|
if (VMODE)
|
||||||
|
{
|
||||||
|
SetVideoMode(MODE_PAL);
|
||||||
|
disp[0].screen.y += 8;
|
||||||
|
disp[1].screen.y += 8;
|
||||||
|
}
|
||||||
|
|
||||||
|
setRGB0(&draw[0], 0, 0, 255);
|
||||||
|
setRGB0(&draw[1], 0, 0, 255);
|
||||||
|
|
||||||
|
draw[0].isbg = 1;
|
||||||
|
draw[1].isbg = 1;
|
||||||
|
|
||||||
|
PutDispEnv(&disp[db]);
|
||||||
|
PutDrawEnv(&draw[db]);
|
||||||
|
|
||||||
|
// Init font system
|
||||||
|
FntLoad(960, 0);
|
||||||
|
FntOpen(16, 16, 196, 64, 0, 256);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void display(void){
|
||||||
|
|
||||||
|
DrawSync(0);
|
||||||
|
VSync(0);
|
||||||
|
|
||||||
|
PutDispEnv(&disp[db]);
|
||||||
|
PutDrawEnv(&draw[db]);
|
||||||
|
|
||||||
|
SetDispMask(1);
|
||||||
|
|
||||||
|
DrawOTag(ot[db] + OTLEN - 1);
|
||||||
|
|
||||||
|
db = !db;
|
||||||
|
|
||||||
|
nextpri = primbuff[db];
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int main() {
|
||||||
|
|
||||||
|
int i;
|
||||||
|
int PadStatus;
|
||||||
|
int TPressed=0;
|
||||||
|
int AutoRotate=1;
|
||||||
|
|
||||||
|
long t, p, OTz, Flag; // t == vertex count, p == depth cueing interpolation value, OTz == value to create Z-ordered OT, Flag == see LibOver47.pdf, p.143
|
||||||
|
|
||||||
|
POLY_G3 *poly = {0}; // pointer to a POLY_G4
|
||||||
|
|
||||||
|
|
||||||
|
SVECTOR Rotate={ 0 }; // Rotation coordinates
|
||||||
|
VECTOR Trans={ 0, 0, CENTERX, 0 }; // Translation coordinates
|
||||||
|
// Scaling coordinates
|
||||||
|
VECTOR Scale={ ONE, ONE, ONE, 0 }; // ONE == 4096
|
||||||
|
MATRIX Matrix={0}; // Matrix data for the GTE
|
||||||
|
|
||||||
|
// Texture window
|
||||||
|
|
||||||
|
DR_MODE * dr_mode; // Pointer to dr_mode prim
|
||||||
|
|
||||||
|
RECT tws = {0, 0, 32, 32}; // Texture window coordinates : x, y, w, h
|
||||||
|
|
||||||
|
init();
|
||||||
|
|
||||||
|
// Main loop
|
||||||
|
while (1) {
|
||||||
|
|
||||||
|
// Read pad status
|
||||||
|
PadStatus = PadRead(0);
|
||||||
|
|
||||||
|
if (AutoRotate == 0) {
|
||||||
|
|
||||||
|
if (PadStatus & PADL1) Trans.vz -= 4;
|
||||||
|
if (PadStatus & PADR1) Trans.vz += 4;
|
||||||
|
if (PadStatus & PADL2) Rotate.vz -= 8;
|
||||||
|
if (PadStatus & PADR2) Rotate.vz += 8;
|
||||||
|
|
||||||
|
if (PadStatus & PADLup) Rotate.vx -= 8;
|
||||||
|
if (PadStatus & PADLdown) Rotate.vx += 8;
|
||||||
|
if (PadStatus & PADLleft) Rotate.vy -= 8;
|
||||||
|
if (PadStatus & PADLright) Rotate.vy += 8;
|
||||||
|
|
||||||
|
if (PadStatus & PADRup) Trans.vy -= 2;
|
||||||
|
if (PadStatus & PADRdown) Trans.vy += 2;
|
||||||
|
if (PadStatus & PADRleft) Trans.vx -= 2;
|
||||||
|
if (PadStatus & PADRright) Trans.vx += 2;
|
||||||
|
|
||||||
|
if (PadStatus & PADselect) {
|
||||||
|
Rotate.vx = Rotate.vy = Rotate.vz = 0;
|
||||||
|
Scale.vx = Scale.vy = Scale.vz = ONE;
|
||||||
|
Trans.vx = Trans.vy = 0;
|
||||||
|
Trans.vz = CENTERX;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
if (PadStatus & PADstart) {
|
||||||
|
if (TPressed == 0) {
|
||||||
|
AutoRotate = (AutoRotate + 1) & 1;
|
||||||
|
Rotate.vx = Rotate.vy = Rotate.vz = 0;
|
||||||
|
Scale.vx = Scale.vy = Scale.vz = ONE;
|
||||||
|
Trans.vx = Trans.vy = 0;
|
||||||
|
Trans.vz = CENTERX;
|
||||||
|
}
|
||||||
|
TPressed = 1;
|
||||||
|
} else {
|
||||||
|
TPressed = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (AutoRotate) {
|
||||||
|
Rotate.vy += 8; // Pan
|
||||||
|
Rotate.vx += 8; // Tilt
|
||||||
|
//~ Rotate.vz += 8; // Roll
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Clear the current OT
|
||||||
|
ClearOTagR(ot[db], OTLEN);
|
||||||
|
|
||||||
|
// Convert and set the matrixes
|
||||||
|
RotMatrix(&Rotate, &Matrix);
|
||||||
|
TransMatrix(&Matrix, &Trans);
|
||||||
|
ScaleMatrix(&Matrix, &Scale);
|
||||||
|
|
||||||
|
SetRotMatrix(&Matrix);
|
||||||
|
SetTransMatrix(&Matrix);
|
||||||
|
|
||||||
|
|
||||||
|
// Render the sample vector model
|
||||||
|
t=0;
|
||||||
|
|
||||||
|
// modelCube is a TMESH, len member == # vertices, but here it's # of triangle... So, for each tri * 3 vertices ...
|
||||||
|
for (i = 0; i < (modelCube.len*3); i += 3) {
|
||||||
|
|
||||||
|
poly = (POLY_G3 *)nextpri;
|
||||||
|
|
||||||
|
// Initialize the primitive and set its color values
|
||||||
|
|
||||||
|
SetPolyG3(poly);
|
||||||
|
|
||||||
|
setRGB0(poly, modelCube.c[i].r , modelCube.c[i].g , modelCube.c[i].b);
|
||||||
|
setRGB1(poly, modelCube.c[i+1].r, modelCube.c[i+1].g, modelCube.c[i+1].b);
|
||||||
|
setRGB2(poly, modelCube.c[i+2].r, modelCube.c[i+2].g, modelCube.c[i+2].b);
|
||||||
|
|
||||||
|
// Rotate, translate, and project the vectors and output the results into a primitive
|
||||||
|
|
||||||
|
OTz = RotTransPers(&modelCube_mesh[modelCube_index[t]] , (long*)&poly->x0, &p, &Flag);
|
||||||
|
OTz += RotTransPers(&modelCube_mesh[modelCube_index[t+1]], (long*)&poly->x1, &p, &Flag);
|
||||||
|
OTz += RotTransPers(&modelCube_mesh[modelCube_index[t+2]], (long*)&poly->x2, &p, &Flag);
|
||||||
|
|
||||||
|
// Sort the primitive into the OT
|
||||||
|
OTz /= 3;
|
||||||
|
if ((OTz > 0) && (OTz < OTLEN))
|
||||||
|
AddPrim(&ot[db][OTz-2], poly);
|
||||||
|
|
||||||
|
nextpri += sizeof(POLY_G3);
|
||||||
|
|
||||||
|
t+=3;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
FntFlush(-1);
|
||||||
|
|
||||||
|
display();
|
||||||
|
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user