public GlowFilter(int screenw, int screenh)
{
Log.Assert(Util.IsPowerOf2(screenw));
Log.Assert(Util.IsPowerOf2(screenh));
width = screenw;
height = screenh;
hGlowShader = Resources.TheResources.GetShader("glow1");
vGlowShader = Resources.TheResources.GetShader("glow2");
combineShader = Resources.TheResources.GetShader("glow3");
// XXX: This could be more efficient somehow...
matrix = Matrix4.CreateOrthographic(1, 1, 0, 10f);
// Create back-buffer
DestTexture1 = new Texture(width, height);
DestTexture2 = new Texture(width, height);
// Create framebuffer
fbo1 = new FramebufferObject(DestTexture1);
fbo2 = new FramebufferObject(DestTexture2);
//this.bb = Starmaze.Content.Images.Billboard();
// Make a billboard to render to.
// XXX: Aspect ratio...
var aspectRatio = 4.0f / 3.0f;
var bb = new VertexList(VertexLayout.TextureVertex);
var halfHeight = 1.0f / 2;
var halfWidth = 1.0f / 2;
bb.AddTextureVertex(
new Vector2(-halfWidth, -halfHeight),
Color4.White,
new Vector2(0, 0)
);
bb.AddTextureVertex(
new Vector2(-halfWidth, halfHeight),
Color4.White,
new Vector2(0, (1.0f / aspectRatio))
);
bb.AddTextureVertex(
new Vector2(halfWidth, halfHeight),
Color4.White,
new Vector2(1, (1.0f / aspectRatio))
);
bb.AddTextureVertex(
new Vector2(halfWidth, -halfHeight),
Color4.White,
new Vector2(1, 0)
);
var indices = new uint[] {
0, 1, 2,
0, 2, 3,
};
bb1 = new VertexArray(hGlowShader, bb, idxs: indices);
bb2 = new VertexArray(vGlowShader, bb, idxs: indices);
bb3 = new VertexArray(combineShader, bb, idxs: indices);
}
public PostprocStep(Shader shader, int screenw, int screenh)
{
Log.Assert(Util.IsPowerOf2(screenw));
Log.Assert(Util.IsPowerOf2(screenh));
width = screenw;
height = screenh;
this.shader = shader;
// XXX: This could be more efficient somehow...
matrix = Matrix4.CreateOrthographic(1, 1, 0, 10f);
// Create back-buffer
// XXX: Is ActiveTexture needed? I THINK so...
//GL.ActiveTexture(TextureUnit.Texture0);
DestTexture = new Texture(width, height);
// Create framebuffer
fbo = new FramebufferObject(DestTexture);
//this.bb = Starmaze.Content.Images.Billboard();
// Make a billboard to render to.
// XXX: Aspect ratio...
var aspectRatio = 4.0f / 3.0f;
var bb = new VertexList(VertexLayout.TextureVertex);
var halfHeight = 1.0f / 2;
var halfWidth = 1.0f / 2;
bb.AddTextureVertex(
new Vector2(-halfWidth, -halfHeight),
Color4.White,
new Vector2(0, 0)
);
bb.AddTextureVertex(
new Vector2(-halfWidth, halfHeight),
Color4.White,
new Vector2(0, (1.0f / aspectRatio))
);
bb.AddTextureVertex(
new Vector2(halfWidth, halfHeight),
Color4.White,
new Vector2(1, (1.0f / aspectRatio))
);
bb.AddTextureVertex(
new Vector2(halfWidth, -halfHeight),
Color4.White,
new Vector2(1, 0)
);
var indices = new uint[] {
0, 1, 2,
0, 2, 3,
};
this.bb = new VertexArray(shader, bb, idxs: indices);
}