public void PixelShader_should_take_texcoords_to_sample_cube_map()
{
// Arrange.
var input = new VertexShaderOutput {
TexCoords = new Vector3(1, 2, 3)
};
var expectedColor = Vector4.One;
var anyOtherColor = Vector4.Zero;
ResourceCallback <Vector4> cubeSample = (u, v, w, i) =>
{
var texCoords = new Vector3(u, v, w);
return(texCoords.Equals(input.TexCoords) ? expectedColor : anyOtherColor);
};
_pixelShader.SetResource("CubeSampler", cubeSample);
//(u, v, w, i) => expectedColor);// );
// Act.
var actual = _pixelShader.Execute <VertexShaderOutput, Vector4>(input);
// Assert.
Assert.That(actual, Is.EqualTo(expectedColor));
}
public void VertexShader_should_mult_by_ViewProj_and_copy_TexCoords_from_local_position()
{
// Arrange.
_vertexShader.SetConstantBuffer("$Globals", new ConstantBufferGlobals
{
ViewProj = Matrix.LookAtLH(Vector3.UnitZ, Vector3.Zero, Vector3.UnitY) *
Matrix.PerspectiveFovRH(MathUtil.PiOverFour, 1, 0.01f, 1.0f)
});
var pos = new Vector3(3, 0, 2);
var projPos = new Vector4(-7.24264f, 0, 3.020202f, -3.040404f);
var expected = new VertexShaderOutput {
Position = projPos, TexCoords = pos
};
// Act.
var input = new VertexShaderInput {
Position = pos
};
var actual = _vertexShader.Execute <VertexShaderInput, VertexShaderOutput>(input);
// Assert.
Assert.That(actual, Is.EqualTo(expected));
}
