private static void FreeTransformTest(Raster render)
{
render.ClearRT(float4(0, 0, 0.2f, 1)); // clear with color dark blue.
int N = 100000;
// Create buffer with points to render
float3[] points = RandomPositionsInBoxSurface(N);
// Creating boxy...
points = ApplyTransform(points, float4x4(
1.57f, 0, 0, 0,
0, 1f, 0, 0,
0, 0, 1f, 0,
0, 0, 0, 1
));
// Apply a free transform
//points = ApplyTransform(points, p => float3(p.x * cos(p.y) + p.z * sin(p.y), p.y, p.x * sin(p.y) - p.z * cos(p.y)));
#region viewing and projecting
points = ApplyTransform(points, Transforms.LookAtLH(float3(0, 0, 0), float3(0, 0, 0), float3(0, 1, 0)));
points = ApplyTransform(points, Transforms.PerspectiveFovLH(pi_over_4, render.RenderTarget.Height / (float)render.RenderTarget.Width, 0.01f, 10));
#endregion
render.DrawPoints(points);
}
public static void DrawRoomTest(Raster raster)
{
raster.ClearRT(float4(0, 0, 0.2f, 1)); // clear with color dark blue.
int N = 100000;
// Create buffer with points to render
float3[] points = RandomPositionsInBoxSurface(N);
float4x4 viewMatrix = Transforms.LookAtLH(float3(5f, 4.6f, 2), float3(0, 0, 0), float3(0, 1, 0));
float4x4 projMatrix = Transforms.PerspectiveFovLH(pi_over_4, raster.RenderTarget.Height / (float)raster.RenderTarget.Width, 0.01f, 10);
DrawRoom(raster, points, mul(viewMatrix, projMatrix));
}
private static void GeneratingMeshes <V>(Raster <PositionNormal, V> render) where V : struct, IProjectedVertex <V>
{
render.ClearRT(float4(0, 0, 0.2f, 1)); // clear with color dark blue.
var primitive = CreateModel();
primitive = primitive.Expand();
//primitive = primitive.Expand();
/// Convert to a wireframe to render. Right now only lines can be rasterized.
primitive = primitive.ConvertTo(Topology.Lines);
#region viewing and projecting
float4x4 viewMatrix = Transforms.LookAtLH(float3(2, 1f, 2), float3(0, 0, 0), float3(0, 1, 0));
float4x4 projectionMatrix = Transforms.PerspectiveFovLH(pi_over_4, render.RenderTarget.Height / (float)render.RenderTarget.Width, 0.01f, 20);
// Define a vertex shader that projects a vertex into the NDC.
render.VertexShader = v =>
{
float4 hPosition = float4(v.Position, 1);
hPosition = mul(hPosition, viewMatrix);
hPosition = mul(hPosition, projectionMatrix);
return(new V {
Homogeneous = hPosition
});
};
// Define a pixel shader that colors using a constant value
render.PixelShader = p =>
{
return(float4(p.Homogeneous.x / 1024.0f, p.Homogeneous.y / 512.0f, 1, 1));
};
#endregion
// Draw the mesh.
render.DrawMesh(primitive);
}
