vertex data appears to do nothing?

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Sephnroth

22

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Joined: 10th Oct 2002

Location: United Kingdom

Posted: 5th Jun 2005 07:09

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Doubt this one is a bug, its probably me. I have written a peice of code for a dialog box that should let me edit the vertices of a plane, i know it will -always- be a plane so it just works on 4 verts (i presume a plane is 4 verts, 1 for each corner?)

however, whenever i open the box it always reads in the current vertex data as 0, 0, 0 for each vert and it doesnt do anything when i try and set it. not a sausage.

Heres the function, anyone got any clues why?

BOOL CALLBACK VertexEditProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam) { 
	switch (message) { 
		case WM_INITDIALOG:
			dbLockVertexDataForMesh(Map[SelectedX][SelectedY].ObjID);

SetDlgItemText(hwndDlg, IDC_EDV1X, dbStr(dbGetVertexDataPositionX(1)));
			SetDlgItemText(hwndDlg, IDC_EDV1Y, dbStr(dbGetVertexDataPositionY(1)));
			SetDlgItemText(hwndDlg, IDC_EDV1Z, dbStr(dbGetVertexDataPositionZ(1)));

SetDlgItemText(hwndDlg, IDC_EDV2X, dbStr(dbGetVertexDataPositionX(2)));
			SetDlgItemText(hwndDlg, IDC_EDV2Y, dbStr(dbGetVertexDataPositionY(2)));
			SetDlgItemText(hwndDlg, IDC_EDV2Z, dbStr(dbGetVertexDataPositionZ(2)));

SetDlgItemText(hwndDlg, IDC_EDV3X, dbStr(dbGetVertexDataPositionX(3)));
			SetDlgItemText(hwndDlg, IDC_EDV3Y, dbStr(dbGetVertexDataPositionY(3)));
			SetDlgItemText(hwndDlg, IDC_EDV3Z, dbStr(dbGetVertexDataPositionZ(3)));

SetDlgItemText(hwndDlg, IDC_EDV4X, dbStr(dbGetVertexDataPositionX(4)));
			SetDlgItemText(hwndDlg, IDC_EDV4Y, dbStr(dbGetVertexDataPositionY(4)));
			SetDlgItemText(hwndDlg, IDC_EDV4Z, dbStr(dbGetVertexDataPositionZ(4)));

dbUnlockVertexData();			
			break;

case WM_COMMAND: 
			switch (LOWORD(wParam)) { 
				case IDOK:
					dbLockVertexDataForMesh(Map[SelectedX][SelectedY].ObjID);
					
					dbSetVertexDataPosition(1, GetDlgItemInt(hwndDlg, IDC_EDV1X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV1Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV1Z, false, true));
					dbSetVertexDataPosition(2, GetDlgItemInt(hwndDlg, IDC_EDV2X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV2Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV2Z, false, true));
					dbSetVertexDataPosition(3, GetDlgItemInt(hwndDlg, IDC_EDV3X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV3Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV3Z, false, true));
					dbSetVertexDataPosition(4, GetDlgItemInt(hwndDlg, IDC_EDV4X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV4Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV4Z, false, true));

dbUnlockVertexData();			
					EndDialog(hwndDlg, wParam);
					return true;
					break;

case IDCANCEL:
					EndDialog(hwndDlg, wParam);
					return true;
					break;

default:
					return true;
			} 
	} 
	return false; 
}

+ Code Snippet

BOOL CALLBACK VertexEditProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam) { 
	switch (message) { 
		case WM_INITDIALOG:
			dbLockVertexDataForMesh(Map[SelectedX][SelectedY].ObjID);

			SetDlgItemText(hwndDlg, IDC_EDV1X, dbStr(dbGetVertexDataPositionX(1)));
			SetDlgItemText(hwndDlg, IDC_EDV1Y, dbStr(dbGetVertexDataPositionY(1)));
			SetDlgItemText(hwndDlg, IDC_EDV1Z, dbStr(dbGetVertexDataPositionZ(1)));

			SetDlgItemText(hwndDlg, IDC_EDV2X, dbStr(dbGetVertexDataPositionX(2)));
			SetDlgItemText(hwndDlg, IDC_EDV2Y, dbStr(dbGetVertexDataPositionY(2)));
			SetDlgItemText(hwndDlg, IDC_EDV2Z, dbStr(dbGetVertexDataPositionZ(2)));

			SetDlgItemText(hwndDlg, IDC_EDV3X, dbStr(dbGetVertexDataPositionX(3)));
			SetDlgItemText(hwndDlg, IDC_EDV3Y, dbStr(dbGetVertexDataPositionY(3)));
			SetDlgItemText(hwndDlg, IDC_EDV3Z, dbStr(dbGetVertexDataPositionZ(3)));

			SetDlgItemText(hwndDlg, IDC_EDV4X, dbStr(dbGetVertexDataPositionX(4)));
			SetDlgItemText(hwndDlg, IDC_EDV4Y, dbStr(dbGetVertexDataPositionY(4)));
			SetDlgItemText(hwndDlg, IDC_EDV4Z, dbStr(dbGetVertexDataPositionZ(4)));

			dbUnlockVertexData();			
			break;


		case WM_COMMAND: 
			switch (LOWORD(wParam)) { 
				case IDOK:
					dbLockVertexDataForMesh(Map[SelectedX][SelectedY].ObjID);
					
					dbSetVertexDataPosition(1, GetDlgItemInt(hwndDlg, IDC_EDV1X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV1Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV1Z, false, true));
					dbSetVertexDataPosition(2, GetDlgItemInt(hwndDlg, IDC_EDV2X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV2Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV2Z, false, true));
					dbSetVertexDataPosition(3, GetDlgItemInt(hwndDlg, IDC_EDV3X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV3Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV3Z, false, true));
					dbSetVertexDataPosition(4, GetDlgItemInt(hwndDlg, IDC_EDV4X, false, true), GetDlgItemInt(hwndDlg, IDC_EDV4Y, false, true), GetDlgItemInt(hwndDlg, IDC_EDV4Z, false, true));

					dbUnlockVertexData();			
					EndDialog(hwndDlg, wParam);
					return true;
					break;

				case IDCANCEL:
					EndDialog(hwndDlg, wParam);
					return true;
					break;

				default:
					return true;
			} 
	} 
	return false; 
}

[07:16:59-pm] « Sephnroth » you were dreaming about lee...
[07:17:13-pm] « Mouse » stfu

[07:17:22-pm] « Mouse » he was hanging himself lol

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IanM

Retired Moderator

22

Years of Service

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Joined: 11th Sep 2002

Location: In my moon base

Posted: 5th Jun 2005 11:58

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Are you trying to update a mesh, or an object?

If it's an object you are trying to update, then you need to use dbLockVertexDataForLimb for limb 0 instead.

Other than that, I have no idea.

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Sephnroth

22

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Joined: 10th Oct 2002

Location: United Kingdom

Posted: 6th Jun 2005 08:48

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yeah, doing the limb thing fixed it

I just kind of assumed an object would be called a mesh in the contex of vertices as its the mesh these commands edit XD

Anyway, is it just me or does setting the vertex Y position really set its Z and setting the Z really set the Y?

Example program:

+ Code Snippet


#include "DarkSDK.h"

void DarkSDK(void) {
	dbSyncOn();
	dbSyncRate(0);

	dbMakeObjectPlane(1, 70, 70);
	dbXRotateObject(1, 270);

	while (LoopSDK()) {
		if (dbEscapeKey())
			return;

		if (dbKeyState(2) == 1) {
			dbLockVertexDataForLimb(1, 0);
			dbSetVertexDataPosition(1, dbGetVertexDataPositionX(1), dbGetVertexDataPositionY(1), dbGetVertexDataPositionZ(1) + 0.1);
			dbUnlockVertexData();
		}

		dbControlCameraUsingArrowKeys(0, 1, 2);
		dbSync();
	}
}

make plane, rotate it flat so you can see the changes, raise the height of vertex 1. Except.. it raises the height by raising the z?!

[07:16:59-pm] « Sephnroth » you were dreaming about lee...
[07:17:13-pm] « Mouse » stfu

[07:17:22-pm] « Mouse » he was hanging himself lol

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Night Giant

21

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Joined: 26th Jul 2003

Location:

Posted: 6th Jun 2005 13:28

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well, i don't know for sure since i don't use the sdk, but if it's anything like the opengl api then there is a local set of axis and a global set of axis. if this is true then by rotating the plain you are also changing the orientation of the local axis.

oh, wow. insignificantpunks.cjb.net.
no: website for progs yet.

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Dark GDK / vertex data appears to do nothing?