Some cleanup and comments.

main.c

@@ -384,18 +384,19 @@ void drawModel(MATRIX *view_matrix, ps1mdl_t *model, ps1skin_t *skin, int frameC
 	int *scale = model->header->scale;
 	int *translate = model->header->translate;
 
+	// Model world position and rotation
 	MATRIX model_mtx;
 	RotMatrix(&model->rotation, &model_mtx);
 	TransMatrix(&model_mtx, &model->position);
 
+	// Adjust light direction by the model's rotation relative to the world
 	MATRIX light_mtx;
 	MulMatrix0(&light_dirs, &model_mtx, &light_mtx);
 	gte_SetLightMatrix(&light_mtx);
 
+	// Compose model matrix with view-projection matrix to obtain the final model-view-projection matrix
 	CompMatrixLV(view_matrix, &model_mtx, &model_mtx);
 
-	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);
@@ -483,8 +484,6 @@ void drawModel(MATRIX *view_matrix, ps1mdl_t *model, ps1skin_t *skin, int frameC
 		addPrim(ot[db] + depth, poly);
 		nextpri += sizeof(POLY_GT3);
 	}
-
-	PopMatrix();
 }
 
 void drawStuff(int counter)
@@ -498,29 +497,15 @@ void drawStuff(int counter)
 	// Draw the last created text stream
 	FntFlush(-1);
 
-	gte_SetBackColor(48, 48, 48);	// Ambient light color
+	gte_SetBackColor(48, 48, 48);		// Ambient light color
 	gte_SetColorMatrix(&light_cols);	// Light color (up to three different lights)
 
-	// Expected order of things:
-	// - Initial scale matrix to correct aspect ratio
-	// - Coordinate system swizzle (scale) (can probably be combined with the above)
-	// - Camera inverse translation
-	// - Camera inverse rotation (apply on top of camera translation)
-	// - Multiply light matrix (lights will be in Quake coordinate system)
-	// - Push matrix
-	// - Entity local rotation
-	// - Entity local translation
-	// - Model internal scale
-	// - Model internal translate
-	// - Render
-	// - Pop matrix
-
-	MATRIX proj_matrix = quake_swizzle;	// Swizzle coordinates so that everything is in Quake coordinate system (Z up)
+	MATRIX proj_matrix = quake_swizzle;			// Swizzle coordinates so that everything is in Quake coordinate system (Z up)
 	ScaleMatrixL(&proj_matrix, &aspect_scale);	// Apply aspect ratio correction for the current resolution
 
 	MATRIX view_matrix;
-	SVECTOR trot = { 0, 0, 0, 0 };		// TODO: camera rotation (in Quake coordinates)
-	VECTOR tpos = { 0, 400, -100 };		// TODO: camera position (in Quake coordinates)
+	SVECTOR trot = { 0, 0, 0, 0 };		// TODO: inverse camera rotation (in Quake coordinates)
+	VECTOR tpos = { 0, 400, -100 };		// TODO: inverse 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
@@ -528,9 +513,6 @@ void drawStuff(int counter)
 	// Compose view and projection matrices to obtain a combined view-projection matrix
 	CompMatrixLV(&proj_matrix, &view_matrix, &view_matrix);
 
-	gte_SetRotMatrix(&view_matrix);
-	gte_SetTransMatrix(&view_matrix);
-
 	drawModel(&view_matrix, &playerModel, &playerSkin, counter >> 2);
 	drawModel(&view_matrix, &shamblerModel, &shamblerSkin, counter >> 2);
 }