Easy Transparancy Quesion

How can i make a certain color (for instance Black) transparant in an allready loaded Texture (or surface). So far the only means by which i can think of is

SufaceLoader.FromSurface(Surf,Surf,SomeFilter,color.black.toargb) this works however the framerate drops from 60 to 3 which a bit too much, ive tried filter.point,.linear,.none all end up with the same wonderfull 3 fps so i dont think its the filter.... Does anyone know of an actually usefull way to do this? Actually Thinking about it its probably because the surface is so large, so i guess next question asside from is there a more efficiant way to apply a transparancy, is what is the best way to scale a texture or surface down?

I think the best way is a rectangle with texture. Load it with color key and use

alphatestenable=true

use alphafunc to determine what show and how.

Sorry

I think the best way is a rectangle with texture. Load it with color key and use

alphatestenable=true

use alphafunc to determine what show and how.

Could you include a qiuck code snipit please, and thanks once again for all your help.

Could you include a qiuck code snipit please' date=' and thanks once again for all your help.[/quote']

 

device.RenderState.AlphaTestEnable = True

device.RenderState.ReferenceAlpha=0 (or 255)

device.RenderState.AlphaFunction=Compare.equal (or notEqual)

 

With this set you altern show of part that has colorkey or not.

load a texture with color key and apply it to a models.

Ohh

device.RenderState.AlphaTestEnable = True

device.RenderState.ReferenceAlpha=0 (or 255)

device.RenderState.AlphaFunction=Compare.equal (or notEqual)

 

With this set you altern show of part that has colorkey or not.

load a texture with color key and apply it to a models.

What i want to do is apply the transparancy to an allready loaded texture.

(like for instance a texture i created by rendering to its surface....)

What i want to do is apply the transparancy to an allready loaded texture.

(like for instance a texture i created by rendering to its surface....)

just load a texture with colorkey. In the instruction for creating pass a color.toargb value

for renderToSurface use a A8R8G8B format and render on this surface image that has color key.

Then apply to a square and you 'll have trasparencties