Applying effects to an existing program that uses BasicEffect
- by Fibericon
Using the finished product from the tutorial here.
Is it possible to apply the grayscale effect from here:
Making entire scene fade to grayscale
Or would you basically have to rewrite everything?
EDIT: It's doing something now, but the whole grayscale seems extremely blue. It's like I'm looking at it through dark blue sunglasses. Here's my draw function:
protected override void Draw(GameTime gameTime)
{
device.SetRenderTarget(renderTarget);
graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
//Drawing models, bullets, etc.
device.SetRenderTarget(null);
spriteBatch.Begin(0, BlendState.Additive, SamplerState.PointWrap, DepthStencilState.Default, RasterizerState.CullNone, grayScale);
Texture2D temp = (Texture2D)renderTarget;
grayScale.Parameters["coloredTexture"].SetValue(temp);
grayScale.CurrentTechnique = grayScale.Techniques["Grayscale"];
foreach (EffectPass pass in grayScale.CurrentTechnique.Passes)
{
pass.Apply();
}
spriteBatch.Draw(temp,
new Vector2(GraphicsDevice.PresentationParameters.BackBufferWidth/2, GraphicsDevice.PresentationParameters.BackBufferHeight/2),
null, Color.White, 0f, new Vector2(renderTarget.Width/2, renderTarget.Height/2), 1.0f,
SpriteEffects.None, 0f);
spriteBatch.End();
base.Draw(gameTime);
}
Another edit: figured out what I was doing wrong. I have Blendstate.Additive in the spriteBatch.Draw() call. It should be Blendstate.Opaque, or it literally tries to add the blank blue image to the grayscale image.
