peanutpower - Developer IT

Next visual studio

- by PeanutPower

The next visual studio is going to be 2012 right? not 2011 ?

OpenGL billboard interpolation issue

I have a billboard quad with a texture mapped onto it. This is basically some text with transparency. The billboard floats forwards and backwards from the camera's perspective. As the billboard moves away (and appears smaller) there is an flickering effect around the edges of the text where there is a stroke border on the actual texture. I think this is because interpolation is needed as the image which is normally X pixels wide is now shown as only a % of X and some pixels need to be merged together. I guess it's doing nearest neighbour or something? Can anyone point me in the right direction for opengl settings to control this, I'm guessing there is some way of preventing this effect from happening by adjusting the method for how the texture is handled ?

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Handling events exposed on a .NET class via COM in VB6

- by PeanutPower

Handling events exposed on a .NET class via COM in VB6 My test .NET (class libary registered for interop in compiler settings) code: Imports System.Runtime.InteropServices <InterfaceType(ComInterfaceType.InterfaceIsIDispatch), ComVisible(True)> _ Public Interface MyEventInterface <DispId(1)> Event Exploded(ByVal Text As String) <DispId(2)> Sub PushRedButton() End Interface <ClassInterface(ClassInterfaceType.None)> _ Public Class EventTest Implements MyEventInterface Public Event Exploded(ByVal Text As String) Implements MyEventInterface.Exploded Public Sub PushRedButton() Implements MyEventInterface.PushRedButton RaiseEvent Exploded("Bang") End Sub End Class My test VB6 application winforms code (which references the above class libary): Public ct As New ComTest1.EventTest Private Sub Command1_Click() ct.add_Exploded (ExplodedHandler) ct.PushRedButton ct.remove_Exploded (ExplodedHandler) End Sub Private Sub ExplodedHandler(ByVal Text As String) MsgBox Text End Sub Specifially I'm not sure how to set up the handler in VB6 the compile error I get is "Argument not optional" on this line in the VB6: ct.add_Exploded (ExplodedHandler)

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B-V to Kelvin formula

- by PeanutPower

Whilst looking for a "B-V color index to temperature conversion formula" I found this javascript: var C1 = 3.979145; var C2 = -0.654499; var C3 = 1.74069; var C4 = -4.608815; var C5 = 6.7926; var C6 = -5.39691; var C7 = 2.19297; var C8 = -.359496; bmv = parseFloat(BV); with (Math) { logt= C1 +C2*bmv +C3*pow(bmv,2) +C4*pow(bmv,3) +C5*pow(bmv,4) +C6*pow(bmv,5) +C7*pow(bmv,6) +C8*pow(bmv,7); t=pow(10,logt); } Which is supposed to convert B-V color index to temperature. Does anyone understand how this is working and if the output value is an approximation for temperature in celcius or kelvin? Is it something to do with products of logarithms?

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VB6 ActiveX controls into a TCL/tk application

- by PeanutPower

Whats the most common way of instantiating VB6 ActiveX controls inside of an Tcl/Tk wrapper application. Are there performance issues with this setup i.e. around GDI handles?

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GA Framework for Virtual Machines

- by PeanutPower

Does anyone know of any .NET genetic algorithm frameworks for evolving instructions sets in virtual machines to solve abstract problems? I would be particularly interested in a framework which allows virtual machines to self propagate within a pool and evolve against a fitness function determined by a data set with "good" outputs given expected inputs.

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perforce exclude subfolder from diff

- by PeanutPower

I have added an exclusion to my workspace which is called "dev-machine" -//depot/DotNetProject/bin/... //dev-machine/bin/... The bin folder now shows as excluded in p4diff but... The differences are still showing i.e. diff 1 of 11 and the next and previous arrows are still taking me into those excluded folders. Am I missing something obvious here?

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how do i cast a .net single to equivalent byte array that can be stored on the heap?

- by PeanutPower

how do i cast a .net single to equivalent byte array that can be stored on the heap? this is to be used as a glfloat

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Perforce depots

- by PeanutPower

Is it preferred to have one depot with multiple folders which map to different paths in a workspace. OR multiple folders in one depot that map to multiple workspaces, or multiple depots to multiple workspaces. Does anyone have any practical advice on the matter? I've also noticed that when I have multiple folders in a depot that map to different paths in my workspace when i diff from the depot a change in one of the sub folders does not show up in the diff.

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