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D3D > How to make the background transparent?

10 posts in this topic

#1 ·  Posted (edited)

Hi,

I've successfully tested D3D examples and it's a very good work ;)

I've seen that the background is white by default, so I would like to know if it's possible to make it transparent?

e.g: for the "Cube" example of "(1) Vertex and Index Buffers"

FireFox.

Edited by FireFox

 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <WinAPI.au3>
#include <WindowsConstants.au3>
#include "D3D9.au3"

Opt("GUIOnEventMode", 1)
Opt("MustDeclareVars", 1)

If Not IsDeclared("WM_DWMCOMPOSITIonchangeD") Then Global Const $WM_DWMCOMPOSITIonchangeD = 0x031E

Global Const $iWidth = 640, $iHeight = 480
; xyz and diffuse (color) vertex format
Global Const $FVF_Vertex = BitOR($D3DFVF_XYZ, $D3DFVF_DIFFUSE)

Local $hGUI = GUICreate("Direct3D9 (Test)", $iWidth, $iHeight, -1, -1, $WS_POPUP)

Local $pDevice, $oDevice
; Vertex and index buffers that hold the cube vertices and indices, respectively
Local $pCubeVB, $oCubeVB, $pCubeIB, $oCubeIB

_GDIPlus_Startup()
_D3D_Startup()

; Check if failed to load necessary dlls
If @error Then
    If @error = 1 Then
        Exit MsgBox(0x10, "Error", 'Could not load "d3d9.dll"')
    Else
        Exit MsgBox(0x10, "Error", 'Could not load "d3dx9_36.dll"')
    EndIf
EndIf

; Request a device that is to be associated with our window
$pDevice = _D3D_Init($hGUI, $iWidth, $iHeight)
$oDevice = _AutoItObject_WrapperCreate($pDevice, $tagID3DDevice9Interface)

; Setup rendering states and define our triangle's vertices
_Setup()

GUIRegisterMsg($WM_DWMCOMPOSITIonchangeD, "_WM_DWMCOMPOSITIonchangeD")
GUISetState()

_SendMessage($hGUI, $WM_DWMCOMPOSITIonchangeD)
GUISetOnEvent($GUI_EVENT_CLOSE, "_Quit")
OnAutoItExitRegister("_Cleanup")
GUISetState()

While 1
    _Renderer()
    _HighPrecisionSleep(8000)
WEnd

Func _WM_DWMCOMPOSITIonchangeD($hWnd, $iMsg, $iwParam, $ilParam)
    Local $tMargs = DllStructCreate($tagMARGINS)

    If _WinAPI_DwmIsCompositionEnabled() Then
        For $i = 1 To 4
            DllStructSetData($tMargs, $i, -1)
        Next
        _WinAPI_DwmExtendFrameIntoClientArea($hWnd, $tMargs)
    EndIf

    Return 0
EndFunc

Func _Renderer()
    ; static variables that hold the x and y rotation value in radians
    Local Static $nX, $nY

    ; matrices that represent the rotations
    Local $tXRot, $tYRot, $tWorld

    $tXRot = _D3DX_MatrixRotationX($nX)
    $tYRot = _D3DX_MatrixRotationY($nY)
    $tWorld = _D3DX_MatrixMultiply(DllStructGetPtr($tXRot), DllStructGetPtr($tYRot))

    ; Set device world transformation
    $oDevice.SetTransform("long", "int", $D3DTS_WORLD, "ptr", Number(DllStructGetPtr($tWorld)))

    ; update rotation variables
    $nY += 0.02
    $nX += 0.02

    ; if greater than or equals 2PI radians set to zero
    If $nX >= 6.28 Then $nX = 0
    If $nY >= 6.28 Then $nY = 0

    ; Draw the scene, clear the depth and back buffers
    $oDevice.Clear("long", "uint", 0, "ptr", 0, "uint", BitOR($D3DCLEAR_TARGET, $D3DCLEAR_ZBUFFER), "uint", 0, "float", 1, "uint", 0)
    $oDevice.BeginScene("long")

    ; Set the cube vertex buffer as the source for the primitives drawing
    $oDevice.SetStreamSource("long", "uint", 0, "ptr", Number($pCubeVB), "uint", 0, "uint", 16) ; our vertex structure size
    ; Set the cube index buffer that defines how each vertex gets mapped
    $oDevice.SetIndices("long", "ptr", Number($pCubeIB))
    ; Set the FVF that defines the cube's vertex format
    $oDevice.SetFVF("long", "uint", $FVF_Vertex)

    ; Draw an indexed primitive by specifying the number of vertices and triangles
    $oDevice.DrawIndexedPrimitive("long", "int", $D3DPT_TRIANGLELIST, "uint", 0, "uint", 0, "uint", 8, "uint", 0, "uint", 12)

    $oDevice.EndScene("long")
    $oDevice.Present("long", "ptr", 0, "ptr", 0, "hwnd", 0, "ptr", 0)
EndFunc

Func _Setup()
    Local $aResult, $tCubeVB, $pCubeVBPtr, $tCubeIB, $tPos, $tAt, $tUp, $tView, $tProj

    ; Cube coordinates, 3D cube contains 8 vertices
    Local $aCubeVB[8][4] = _
        [[ -1, -1, -1, 0xFFFF0000 ], _
         [ -1,  1, -1, 0xFF00FF00 ], _
         [  1,  1, -1, 0xFF0000FF ], _
         [  1, -1, -1, 0xFFFF0000 ], _
         [ -1, -1,  1, 0xFF00FF00 ], _
         [ -1,  1,  1, 0xFF0000FF ], _
         [  1,  1,  1, 0xFFFF0000 ], _
         [  1, -1,  1, 0xFF00FF00 ]]

    ; The index buffer maps each vertex to form a triangle (3 vertices per triangle, we have 12 triangles)
    ; The winding order defines whether a triangle is facing the camera or not (thus culled away)
    ; Clockwise triangles, with the default culling mode, face the camera and thus continue to next stages of processing
    ; Counter-clockwise triangles get culled and don't get it to next stages of processing.
    ; This is impormant as it saves processing time for the visible content of the scene.
    Local  $aCubeIB[36] = [ _
        0, 1, 2, _ ; front
        0, 2, 3, _
        4, 6, 5, _ ; back
        4, 7, 6, _
        4, 5, 1, _ ; left
        4, 1, 0, _
        3, 2, 6, _ ; right
        3, 6, 7, _
        1, 5, 6, _ ; top
        1, 6, 2, _
        4, 0, 3, _ ; bottom
        4, 3, 7  ]

    ; Create and define the cube vertex and index buffers
    $aResult = $oDevice.CreateVertexBuffer("long", "uint", 8 * 16, "uint", $D3DUSAGE_WRITEONLY, "uint", $FVF_Vertex, "int", $D3DPOOL_MANAGED, "ptr*", 0, "ptr", 0)
    $pCubeVB = $aResult[6]
    ; 36 indices times sizeof(WORD) -> 36 * 2 = 72
    $aResult = $oDevice.CreateIndexBuffer("long", "uint", 72, "uint", $D3DUSAGE_WRITEONLY, "int", $D3DFMT_INDEX16, "int", $D3DPOOL_MANAGED, "ptr*", 0, "ptr", 0)
    $pCubeIB = $aResult[6]

    $oCubeVB = _AutoItObject_WrapperCreate($pCubeVB, $tagIDirect3DVertexBuffer9)
    $oCubeIB = _AutoItObject_WrapperCreate($pCubeIB, $tagIDirect3DIndexBuffer9)

    ; Lock the entire vertex buffer to get a pointer to memory
    $aResult = $oCubeVB.Lock("long", "uint", 0, "uint", 0, "ptr*", 0, "uint", 0)
    $pCubeVBPtr = $aResult[4]

    For $i = 0 To 7
        $tCubeVB = DllStructCreate("float;float;float;uint", $pCubeVBPtr)

        For $j = 0 To 3
            DllStructSetData($tCubeVB, $j+1, $aCubeVB[$i][$j])
        Next

        $pCubeVBPtr += 16 ; our vertex structure size
    Next

    ; Unlock the vertex buffer
    $oCubeVB.Unlock("long")

    ; Lock the entire index buffer to get a pointer to memory
    $aResult = $oCubeIB.Lock("long", "uint", 0, "uint", 0, "ptr*", 0, "uint", 0)
    ; Create dllstrcut from memory pointer. Required size is 36 WORDs. 6 sides * 2 triangles per side * 3 vertices per triangle = 6 * 2 * 3 = 36
    $tCubeIB = DllStructCreate("word[36]", $aResult[4])

    For $i = 0 To 35
        DllStructSetData($tCubeIB, 1, $aCubeIB[$i], $i+1)
    Next

    ; Unlock the index buffer
    $oCubeIB.Unlock("long")

    ; Disable lighting as our vertices don't specify normals
    $oDevice.SetRenderState("long", "int", $D3DRS_LIGHTING, "bool", False)

    ; Set the view matrix, let the camera look down the positive z-axis
    ; camera position
    $tPos = _D3D_CreateVector3(0, 0, -5)
    ; camera targets the origin
    $tAt  = _D3D_CreateVector3(0, 0, 0)
    ; camera's up vector
    $tUp = _D3D_CreateVector3(0, 1, 0)

    $tView = _D3DX_MatrixLookAtLH(DllStructGetPtr($tPos), DllStructGetPtr($tAt), DllStructGetPtr($tUp))

    ; Set view matrix
    $oDevice.SetTransform("long", "int", $D3DTS_VIEW, "ptr", Number(DllStructGetPtr($tView)))

    ; Set projection matrix, let the frustum volume or FOV (field of view) be 90 degrees, in radians
    $tProj = _D3DX_MatrixPerspectiveFovLH(ASin(1), $iWidth/$iHeight, 1, 1000)
    $oDevice.SetTransform("long", "int", $D3DTS_PROJECTION, "ptr", Number(DllStructGetPtr($tProj)))
EndFunc

Func _Quit()
    Exit
EndFunc

Func _Cleanup()
    $oCubeIB = 0
    $oCubeVB = 0
    $oDevice = 0
    GUIDelete()
    _D3D_Shutdown()
    _GDIPlus_Shutdown()
EndFunc

; #FUNCTION#;===============================================================================
;
; Name...........: _HighPrecisionSleep()
; Description ...: Sleeps down to 0.1 microseconds
; Syntax.........: _HighPrecisionSleep( $iMicroSeconds, $hDll=False)
; Parameters ....:  $iMicroSeconds      - Amount of microseconds to sleep
;                  $hDll  - Can be supplied so the UDF doesn't have to re-open the dll all the time.
; Return values .: None
; Author ........: Andreas Karlsson (monoceres)
; Modified.......:
; Remarks .......: Even though this has high precision you need to take into consideration that it will take some time for autoit to call the function.
; Related .......:
; Link ..........;
; Example .......; No
;
;;==========================================================================================
Func _HighPrecisionSleep($iMicroSeconds,$hDll=False)
    Local $hStruct, $bLoaded
    If Not $hDll Then
        $hDll=DllOpen("ntdll.dll")
        $bLoaded=True
    EndIf
    $hStruct=DllStructCreate("int64 time;")
    DllStructSetData($hStruct,"time",-1*($iMicroSeconds*10))
    DllCall($hDll,"dword","ZwDelayExecution","int",0,"ptr",DllStructGetPtr($hStruct))
    If $bLoaded Then DllClose($hDll)
EndFunc

Func _WinAPI_DwmExtendFrameIntoClientArea($hWnd, ByRef $tMargins)
    Local $aResult = DllCall("dwmapi.dll", "int", "DwmExtendFrameIntoClientArea", "hwnd", $hWnd, "ptr", DllStructGetPtr($tMargins))

    If @error Then Return SetError(@error, @extended, -1)
    Return $aResult[0]
EndFunc

Func _WinAPI_DwmIsCompositionEnabled()
    Local $aResult = DllCall("dwmapi.dll", "int", "DwmIsCompositionEnabled", "int*", 0)

    If @error Then Return SetError(@error, @extended, -1)
    Return SetError($aResult[0], 0, $aResult[1])
EndFunc

Cool, isn't it? ;]

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Coool!

Br,

UEZ


Please don't send me any personal message and ask for support! I will not reply!

Selection of finest graphical examples at Codepen.io

The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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Very!

What's gdip used for?


♡♡♡

.

eMyvnE

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@Authenticity

The background is black and not transparent for me :/

I have tested on another window [CLASS:CabinetWClass] (explorer folder) and it's the same thing...

FireFox.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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If you're running windows Vista, then make sure composition is enabled. If you're

using XP or other Windows OS that doesn't support the new Aero-Glass theme

it's too bad. You'll need to Google for some Direct3D examples about how to

screen-shot the surface of the desktop, then render the content to your back

buffer and apply the shapes drawing after. It's an ugly hack and code.

@trancexx:

At first I've handled the WM_ERASEBKGND notification and used GDI+ to fill

the background with black brush. It isn't needed, just a leftover.

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#7 ·  Posted (edited)

If you're running windows Vista, then make sure composition is enabled. If you're

using XP or other Windows OS that doesn't support the new Aero-Glass theme

it's too bad. You'll need to Google for some Direct3D examples about how to

screen-shot the surface of the desktop, then render the content to your back

buffer and apply the shapes drawing after. It's an ugly hack and code.

@trancexx:

At first I've handled the WM_ERASEBKGND notification and used GDI+ to fill

the background with black brush. It isn't needed, just a leftover.

Yeah I think you're right, I've aero disabled but I'm not able to re-activate it...

I will re-install win7 anyway ;)

Edit: Solved, Impressive! Posted Image

Br, FireFox.

Edited by FireFox

 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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Guys why i cant run the script it say error opening file dsd9.au3

sorry for bumping this tread but i want to learn d3d

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Guys why i cant run the script it say error opening file dsd9.au3

sorry for bumping this tread but i want to learn d3d

Before posting something, search on the forum and you will find this:

http://www.autoitscript.com/forum/index.php?showtopic=120648

FireFox.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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