Made some sense of entity-local transformations, though performing scaling and translation of the vertex data is proving to be a problem.

main.c

@@ -76,8 +76,8 @@ typedef struct
 	ps1texture_t front, back;
 } ps1skin_t;
 
-ps1mdl_t playerModel = { .position = { -200, 200, -160 }, .rotation = { 0 } };
-ps1mdl_t shamblerModel = { .position = { 100, 200, -160 }, .rotation = { 0 } };
+ps1mdl_t playerModel = { .position = { -150, 0, 0 }, .rotation = { 0 } };
+ps1mdl_t shamblerModel = { .position = { 150, 0, 0 }, .rotation = { 0, 0, ONE >> 1, 0 } };
 ps1skin_t playerSkin, shamblerSkin;
 
 const MATRIX identity = {
@@ -368,6 +368,8 @@ static int fakeLight(const int *norm)
 
 SVECTOR outPos;
 
+#define SCTR(v, i)		(short)((scale[i]*(v)->position[i]+translate[i])>>10)
+
 void drawModel(MATRIX *view_matrix, ps1mdl_t *model, ps1skin_t *skin, int frameCounter)
 {
 	ps1texture_t *tex;
@@ -394,6 +396,12 @@ void drawModel(MATRIX *view_matrix, ps1mdl_t *model, ps1skin_t *skin, int frameC
 
 	PushMatrix();
 
+	// TODO: this idea is good but it's missing the >> 12 fraction divide after transformation. Hmmmm...
+	// MATRIX mesh_mtx = identity;
+	// ScaleMatrixL(&mesh_mtx, (VECTOR*)scale);
+	// TransMatrix(&mesh_mtx, (VECTOR*)translate);
+	// CompMatrixLV(&model_mtx, &mesh_mtx, &mesh_mtx);
+
 	gte_SetRotMatrix(&model_mtx);
 	gte_SetTransMatrix(&model_mtx);
 	
@@ -405,9 +413,12 @@ void drawModel(MATRIX *view_matrix, ps1mdl_t *model, ps1skin_t *skin, int frameC
 		ps1mdl_vertex_t *v1 = &baseVert[tri->vertexIndex[1]];
 		ps1mdl_vertex_t *v2 = &baseVert[tri->vertexIndex[2]];
 
-		SVECTOR pos0 = { v0->position[0], v0->position[1], v0->position[2], 0 };
-		SVECTOR pos1 = { v1->position[0], v1->position[1], v1->position[2], 0 };
-		SVECTOR pos2 = { v2->position[0], v2->position[1], v2->position[2], 0 };
+		// SVECTOR pos0 = { v0->position[0], v0->position[1], v0->position[2], 0 };
+		// SVECTOR pos1 = { v1->position[0], v1->position[1], v1->position[2], 0 };
+		// SVECTOR pos2 = { v2->position[0], v2->position[1], v2->position[2], 0 };
+		SVECTOR pos0 = { SCTR(v0,0), SCTR(v0,1), SCTR(v0,2), 0 };
+		SVECTOR pos1 = { SCTR(v1,0), SCTR(v1,1), SCTR(v1,2), 0 };
+		SVECTOR pos2 = { SCTR(v2,0), SCTR(v2,1), SCTR(v2,2), 0 };
 
 		gte_ldv3(&pos0, &pos1, &pos2);
 		gte_rtpt();	// Rotation, Translation and Perspective triplet (all three vertices at once)
@@ -509,7 +520,7 @@ void drawStuff(int counter)
 
 	MATRIX view_matrix;
 	SVECTOR trot = { 0, 0, 0, 0 };		// TODO: camera rotation (in Quake coordinates)
-	VECTOR tpos = { 0, 0, 0 };		// TODO: camera position (in Quake coordinates)
+	VECTOR tpos = { 0, 400, -100 };		// TODO: camera position (in Quake coordinates)
 	RotMatrix(&trot, &view_matrix);		// Set camera rotation part of the view matrix
 	ApplyMatrixLV(&view_matrix, &tpos, &tpos);	// Apply camera rotation to camera position
 	TransMatrix(&view_matrix, &tpos);	// Apply transformed position to the translation part of the view matrix
@@ -536,6 +547,8 @@ int main(int argc, const char *argv[])
 	counter = 0;
 	while(1)
 	{
+		//playerModel.rotation.vz = (counter << 2) % ONE;
+
 		drawStuff(counter);
 		
 		// Update display