public InputManager(Window window, Camera camera)
{
windowCopy = window;
cameraCopy = camera;
lastMousePos = new Vector2(OpenTK.Input.Mouse.GetCursorState().X, OpenTK.Input.Mouse.GetCursorState().Y);
windowCopy.KeyDown += HandleKeyDown;
windowCopy.KeyUp += HandleKeyUp;
}
private void uploadParameters(Vector3 lightPosition, Camera camera, Matrix4 projectionMatrix, Matrix4 depthViewProjectionMatrix)
{
GL.Uniform1(depthTextureLocation, 0);
GL.Uniform1(shadowTextureLocation, 1);
GL.Uniform1(noiseTextureLocation, 2);
Matrix4 invVP = camera.viewMatrix * projectionMatrix;
inverse(ref invVP);
GL.UniformMatrix4(inverseViewProjectionMatrixLocation, false, ref invVP);
GL.Uniform3(viewPosLocation, camera.Position);
// Compute the MVP matrix from the light's point of view (and add a bias)
Matrix4 depthMVP = depthViewProjectionMatrix * biasMatrix;
GL.UniformMatrix4(depthBiasMVPLocation, false, ref depthMVP);
Vector2 noiseOffset = new Vector2(intNoiseOffsetX, intNoiseOffsetY);
GL.Uniform2(noiseOffsetLocation, noiseOffset);
GL.Uniform1(enumScatteringTechniqueLocation, enumScatteringTechnique);
}
public void render(Vector3 lightPosition, Camera camera, Matrix4 projectionMatrix, int depthMapTexture, int shadowMapTexture, Matrix4 depthViewProjectionMatrix)
{
// Set some settings
GL.BindVertexArray(vertexArrayObject);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, depthMapTexture);
GL.ActiveTexture(TextureUnit.Texture1);
GL.BindTexture(TextureTarget.Texture2D, shadowMapTexture);
GL.ActiveTexture(TextureUnit.Texture2);
GL.BindTexture(TextureTarget.Texture2D, noiseTexture);
// Enable Position Attribute
GL.EnableVertexAttribArray(positionLocation);
GL.EnableVertexAttribArray(texcoordsLocation);
// Upload Parameters
uploadParameters(lightPosition, camera, projectionMatrix, depthViewProjectionMatrix);
// Enable Texture and set Blending
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
GL.BlendEquation(BlendEquationMode.FuncAdd);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.One);
// Render the Quad
GL.DrawArrays(PrimitiveType.TriangleStrip, 0, 4);
// Clean up and set Blending
GL.DisableVertexAttribArray(positionLocation);
GL.DisableVertexAttribArray(texcoordsLocation);
GL.BindVertexArray(0);
GL.BindTexture(TextureTarget.Texture2D, -1);
GL.ActiveTexture(TextureUnit.Texture1);
GL.BindTexture(TextureTarget.Texture2D, -1);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, -1);
GL.Disable(EnableCap.Blend);
GL.BlendEquation(BlendEquationMode.FuncAdd);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
}