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Fixes #2: Light matrix is now updated on moving meshes

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ABelliqueux 2021-06-28 17:45:18 +02:00
parent 85cab5c47e
commit 495816dc8f
3 changed files with 35 additions and 23 deletions
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1
include/graphics.h
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@ -5,6 +5,7 @@
// Drawing
void transformMesh(CAMERA * camera, MESH * meshes);
void enlightMesh(LEVEL * curLvl, MESH * actorPtr, SVECTOR * lgtang);
void drawPoly(MESH * mesh, long * Flag, int atime, int * camMode, char ** nextpri, u_long * ot, char * db, DRAWENV * draw);
// Tri drawing
void set3VertexLerPos(MESH * mesh, long t);

37
src/graphics.c
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@ -1,27 +1,38 @@
#include "../include/graphics.h"
#include "../include/math.h"
void enlightMesh(LEVEL * curLvl, MESH * mesh, SVECTOR * lgtang){
// Update light rotation on actor
MATRIX rotlgt, rotmesh, light;
// Find rotmat from actor angle
RotMatrix_gte(&mesh->rot, &rotmesh);
RotMatrix_gte(lgtang, &rotlgt);
MulMatrix0(&rotmesh, &rotlgt, &rotlgt);
MulMatrix0(curLvl->lgtmat, &rotlgt, &light);
SetLightMatrix(&light);
};
void transformMesh(CAMERA * camera, MESH * mesh){
MATRIX mat;
// Apply rotation matrix
RotMatrix_gte(&mesh->rot, &mat);
// Apply translation matrix
TransMatrix(&mat, &mesh->pos);
// Compose matrix with cam
CompMatrix(&camera->mat, &mat, &mat);
// Set default rotation and translation matrices
SetRotMatrix(&mat);
SetTransMatrix(&mat);
//~ }
MATRIX mat;
// Apply rotation matrix
RotMatrix_gte(&mesh->rot, &mat);
// Apply translation matrix
TransMatrix(&mat, &mesh->pos);
// Compose matrix with cam
CompMatrix(&camera->mat, &mat, &mat);
// Set default rotation and translation matrices
SetRotMatrix(&mat);
SetTransMatrix(&mat);
//~ }
};
//TODO : Break this monster in tiny bits ?
void drawPoly(MESH * mesh, long * Flag, int atime, int * camMode, char ** nextpri, u_long * ot, char * db, DRAWENV * draw) {
long nclip, t = 0;
// FIXME : t is not incremented, thus always 0. It works if the mesh only has tris or quads, but won't work with mixed meshes.
// mesh is POLY_GT3 ( triangle )
if (mesh->index[t].code == 4) {
if (mesh->index[0].code == 4) {
drawTri(mesh, Flag, atime, camMode, nextpri, ot, db, draw);
}
// If mesh is quad
if (mesh->index[t].code == 8) {
if (mesh->index[0].code == 8) {
drawQuad(mesh, Flag, atime, camMode, nextpri, ot, db, draw);
}
};

20
src/main.c
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@ -36,7 +36,7 @@ u_long overlaySize = 0;
#include "../levels/level0.h"
#include "../levels/level1.h"
volatile u_char level = 0;
volatile u_char level = 1;
// level 1 : 8003F05C -2147225508
// level 0 : 800AF744 -2146764988
// 80010000 -2147418112 -> -2147483648
@ -57,12 +57,8 @@ char * nextpri = primbuff[0]; // Primitive counter
char db = 0; // Current buffer counter
CVECTOR BGc = {128, 128, 128, 0}; // Default Far color - This can be set in each level.
VECTOR BKc = {128, 128, 128, 0}; // Back color
MATRIX rotlgt;
MATRIX rotactor;
SVECTOR lgtang = {0, 0, 0};
SVECTOR invang = {0, 0, 0};
SVECTOR actorang = {0, 0, 0};
MATRIX light;
MATRIX rotlgt, light;
short vs;
CAMERA camera = {0};
// physics
@ -529,12 +525,14 @@ int main() {
drawBG(curLvl.camPtr, &nextpri, otdisc[db], &db);
// Loop on camAngles
for ( int mesh = 0 ; mesh < curLvl.camAngles[ curCamAngle ]->index; mesh ++ ) {
enlightMesh(&curLvl, curLvl.camAngles[curCamAngle]->objects[mesh], &lgtang);
transformMesh(&camera, curLvl.camAngles[curCamAngle]->objects[mesh]);
drawPoly(curLvl.camAngles[curCamAngle]->objects[mesh], &Flag, atime, &camMode, &nextpri, ot[db], &db, &draw[db]);
// int * camMode, char ** nextpri, u_long * ot, char * db, DRAWENV * draw)
}
}
else {
//FIXME : Light is not applied to planes
// Draw current node's plane
drawPoly( curLvl.curNode->plane, &Flag, atime, &camMode, &nextpri, ot[db], &db, &draw[db]);
// Draw surrounding planes
@ -545,17 +543,20 @@ int main() {
for ( int sibling = 0; sibling < curLvl.curNode->siblings->index; sibling++ ) {
for ( int object = 0; object < curLvl.curNode->siblings->list[ sibling ]->objects->index; object++ ) {
long t = 0;
enlightMesh(&curLvl, curLvl.curNode->siblings->list[ sibling ]->objects->list[ object ], &lgtang);
transformMesh(&camera, curLvl.curNode->siblings->list[ sibling ]->objects->list[ object ]);
drawPoly( curLvl.curNode->siblings->list[ sibling ]->objects->list[ object ], &Flag, atime, &camMode, &nextpri, ot[db], &db, &draw[db]);
}
}
// Draw current plane children
for ( int object = 0; object < curLvl.curNode->objects->index; object++ ) {
enlightMesh(&curLvl, curLvl.curNode->objects->list[ object ], &lgtang);
transformMesh(&camera, curLvl.curNode->objects->list[ object ]);
drawPoly( curLvl.curNode->objects->list[ object ], &Flag, atime, &camMode, &nextpri, ot[db], &db, &draw[db]);
}
// Draw rigidbodies
for ( int object = 0; object < curLvl.curNode->rigidbodies->index; object++ ) {
enlightMesh(&curLvl, curLvl.curNode->rigidbodies->list[ object ], &lgtang);
transformMesh(&camera, curLvl.curNode->rigidbodies->list[ object ]);
drawPoly( curLvl.curNode->rigidbodies->list[ object ], &Flag, atime, &camMode, &nextpri, ot[db], &db, &draw[db]);
}
@ -563,15 +564,14 @@ int main() {
}
// Find and apply light rotation matrix
// Update light rotation on actor
// Find rotmat from actor angle
RotMatrix_gte(&curLvl.actorPtr->rot, &rotactor);
// Update global light matrix
RotMatrix_gte(&lgtang, &rotlgt);
MulMatrix0(&rotactor, &rotlgt, &rotlgt);
MulMatrix0(curLvl.lgtmat, &rotlgt, &light);
SetLightMatrix(&light);
// Set camera
applyCamera(&camera);
// Add secondary OT to main OT
AddPrims(otdisc[db], ot[db] + OTLEN - 1, ot[db]);
//~ FntPrint("curLvl.curNode : %x\nIndex: %d", curLvl.curNode, curLvl.curNode->siblings->index);