R2T and alpha

The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.

BlackSp1der

Hi.
I'm testing the Indiepath R2T module and I found a problem when an Image with alpha values are used over a solid image. The new alpha superimpose its alpha instead of doing a comparative max(alpha1,alpha2).
Did anyone have found any solution for that? I haven't found any DX command to solve it.

Strict
Import Indiepath.Render2Texture

SetGraphicsDriver D3D7Max2DDriver()
Graphics 800,600
SetBlend(ALPHABLEND)
tRender.Initialise()

Local myImage:TImage = tRender.Create(256,256)
tRender.TextureRender_Begin(myImage)
	tRender.Cls($90FF0000)
	draw
tRender.TextureRender_End()


Local line:Int
Repeat
tRender.BackBufferRender_Begin()
	Cls
	line=(line+5) Mod 350
	DrawRect 0,100+line,800,5
	draw
  	DrawImage myImage,520,150
tRender.BackBufferRender_End()
	Flip
Until KeyHit(KEY_ESCAPE) Or AppTerminate()


Function draw()
	DrawRect 100,50,500,500

	SetColor 0,0,255
	SetAlpha 0.5
	DrawOval 200,200,150,150

	SetAlpha 1
	DrawOval 400,400,150,150
	SetColor 255,255,255
EndFunction