static void Main(string[] args)
{
// Setup a renderering window, this can be handled with any windowing/platform library
var canvas = new ExampleBase.GraphicsCanvas();
// Create the renderer
var renderer = new Fe.Renderer();
// Set the handle from our form so we let Fe create context/devices as appropriate.
renderer.SetWindowHandle(canvas.Handle);
// Initialise defaults
renderer.Init();
// Create the shaders
Fe.Shader vertexShader, fragmentShader;
switch (renderer.GetRendererType())
{
case Fe.RendererType.OpenGL:
vertexShader = new Fe.Shader(Fe.ShaderType.Vertex, File.ReadAllText("splitscreen.vert"));
fragmentShader = new Fe.Shader(Fe.ShaderType.Fragment, File.ReadAllText("splitscreen.frag"));
break;
default:
throw new Exception("Unknown backend renderer type");
}
Fe.ShaderProgram program = new ShaderProgram(vertexShader, fragmentShader);
// Vertices that make up a cube.
PosColorVertex[] vertices =
{
new PosColorVertex(-0.25f, 0.25f, 0.25f, 0xff000000),
new PosColorVertex(0.25f, 0.25f, 0.25f, 0xff0000ff),
new PosColorVertex(-0.25f, -0.25f, 0.25f, 0xff00ff00),
new PosColorVertex(0.25f, -0.25f, 0.25f, 0xff00ffff),
new PosColorVertex(-0.25f, 0.25f, -0.25f, 0xffff0000),
new PosColorVertex(0.25f, 0.25f, -0.25f, 0xffff00ff),
new PosColorVertex(-0.25f, -0.25f, -0.25f, 0xffffff00),
new PosColorVertex(0.25f, -0.25f, -0.25f, 0xffffffff),
};
// Indices that make up a cube.
uint[] indexPositions =
{
0, 1, 2,
1, 3, 2,
4, 6, 5,
5, 6, 7,
0, 2, 4,
4, 2, 6,
1, 5, 3,
5, 7, 3,
0, 4, 1,
4, 5, 1,
2, 3, 6,
6, 3, 7,
};
// Create vertex buffer for our cube
var vb = new Fe.VertexBuffer <PosColorVertex>(vertices);
var ib = new Fe.IndexBuffer(indexPositions);
void Resize(int width, int height)
{
var view1 = new Fe.View(0, height / 2, width, height / 2, true);
view1.ClearColour = new Fe.Colour4(1.0f, 1.0f, 1.0f);
var view2 = new Fe.View(0, 0, width, height / 2, true);
renderer.SetView(0, view1);
renderer.SetView(1, view2);
// Set up a projection matrix
var projectionMatrix = Nml.Matrix4x4.PerspectiveProjectionRH(Nml.Common.Pi / 4, (float)width / ((float)height / 2), 0.1f, 100.0f);
projectionMatrix *= Nml.Matrix4x4.Translate(0.0f, 0.0f, -5.0f);
view1.SetTransform(Nml.Matrix4x4.Identity.ToArray(), projectionMatrix.ToArray());
projectionMatrix *= Nml.Matrix4x4.Translate(0.0f, 0.0f, -5.0f);
view2.SetTransform(Nml.Matrix4x4.Identity.ToArray(), projectionMatrix.ToArray());
renderer.Reset(width, height);
}
// Force an Initial resize, you could handle this with some event on your window if you wanted.
Resize(canvas.Width, canvas.Height);
void Cleanup()
{
// Kill off the renderer and clean up all underlying resources.
renderer.Dispose();
}
var view1Bucket = renderer.AddCommandBucket(UInt16.MaxValue, 0);
var view2Bucket = renderer.AddCommandBucket(UInt16.MaxValue, 1);
// Create some timers and run the main loop
Stopwatch frameTimer = Stopwatch.StartNew();
double frameTime = 0;
float rotY = 0.0f;
void Update()
{
frameTime = frameTimer.Elapsed.TotalMilliseconds;
frameTimer.Restart();
for (int i = 0; i < 5; i++)
{
var cubeCommand = view1Bucket.AddCommand(1);
cubeCommand.SetShaderProgram(program);
cubeCommand.SetVertexBuffer(vb);
cubeCommand.SetIndexBuffer(ib);
// Spin one way
cubeCommand.SetTransform((Nml.Matrix4x4.Translate(-6.0f + i * 3.0f, 0.0f, 0.0f) * Nml.Matrix4x4.RotateY(rotY + i * 0.32f)).ToArray());
var cubeCommand2 = view2Bucket.AddCommand(1);
cubeCommand2.SetShaderProgram(program);
cubeCommand2.SetVertexBuffer(vb);
cubeCommand2.SetIndexBuffer(ib);
// Spin the other way
cubeCommand2.SetTransform((Nml.Matrix4x4.Translate(-6.0f + i * 3.0f, 0.0f, 0.0f) * Nml.Matrix4x4.RotateY(-rotY + i * 0.32f)).ToArray());
}
renderer.EndFrame();
rotY += 0.001f;
}
canvas.Resize += () =>
{
Resize(canvas.Width, canvas.Height);
};
canvas.Closing += () =>
{
Cleanup();
};
ExampleBase.Application.Run(canvas, () =>
{
Update();
});
}
static void Main(string[] args)
{
var canvas = new ExampleBase.GraphicsCanvas();
// Create the renderer
var renderer = new Fe.Renderer();
// Set the handle from our form so we let Fe create context/devices as appropriate.
renderer.SetWindowHandle(canvas.Handle);
// Initialise the renderer
renderer.Init();
// Create geometry layer command bucker
var geometryBucket = renderer.AddCommandBucket(UInt16.MaxValue);
// Create the shaders
Fe.Shader vertexShader, fragmentShader;
switch (renderer.GetRendererType())
{
case Fe.RendererType.OpenGL:
vertexShader = new Fe.Shader(Fe.ShaderType.Vertex, File.ReadAllText("default.vert"));
fragmentShader = new Fe.Shader(Fe.ShaderType.Fragment, File.ReadAllText("default.frag"));
break;
default:
throw new Exception("Unknown backend renderer type");
}
Fe.ShaderProgram program = new ShaderProgram(vertexShader, fragmentShader);
// Build plane data
var plane = new Fe.Extra.Geometry.Plane(30, 30, 30, 30);
PosColorVertex[] vertices = new PosColorVertex[plane.Vertices.Length / 3];
Random rand = new Random();
int i = 0;
int offset = 0;
for (i = 0; i < vertices.Length; i++)
{
vertices[i].x = plane.Vertices[offset];
vertices[i].y = plane.Vertices[offset + 1];
vertices[i].z = plane.Vertices[offset + 2];
vertices[i].abgr = (uint)(rand.Next(1 << 30)) << 2 | (uint)(rand.Next(1 << 2));;
offset += 3;
}
// Create vertex buffer for our cube
var vb = new Fe.VertexBuffer <PosColorVertex>(vertices, true);
var ib = new Fe.IndexBuffer(plane.Indices);
// Create shared uniforms
Fe.Uniform projectionUniform = new Fe.Uniform("projectionMatrix", Fe.UniformType.Matrix4x4f);
Fe.UniformBuffer sharedUniforms = new Fe.UniformBuffer();
// Turn off face culling.
var rs = new RasteriserState(CullMode.None);
Stopwatch frameTimer = Stopwatch.StartNew();
double frameTime = 0;
float rotTime = 0.0f;
float waveyTime = 0.0f;
canvas.Title = "Dynamic vertex buffer update example";
void Resize(int width, int height)
{
// Set up a projection matrix
var projectionMatrix = Nml.Matrix4x4.PerspectiveProjectionRH(Nml.Common.Pi / 4, (float)width / (float)height, 0.1f, 100.0f);
projectionMatrix *= Nml.Matrix4x4.Translate(0, 0, -50.0f);
sharedUniforms.Set(projectionUniform, projectionMatrix.ToArray());
renderer.Reset(width, height);
}
// Force an Initial resize, you could handle this with some event on your window if you wanted.
Resize(canvas.Width, canvas.Height);
void Cleanup()
{
// Kill off the renderer and clean up all underlying resources.
renderer.Dispose();
}
void Update()
{
frameTime = frameTimer.Elapsed.TotalMilliseconds;
frameTimer.Restart();
// Increase the animation
rotTime += (float)frameTime * 0.0010f;
waveyTime += (float)frameTime * 0.01f;
var cubeCommand = geometryBucket.AddCommand(1);
cubeCommand.SetShaderProgram(program);
cubeCommand.SetVertexBuffer(vb);
cubeCommand.SetIndexBuffer(ib);
cubeCommand.SetSharedUniforms(sharedUniforms);
cubeCommand.SetRasteriserState(rs);
// Generate new vertice positionsd
for (i = 0; i < vertices.Length; i++)
{
float newPos = (float)Math.Sin(waveyTime + i) * 1.5f;
vertices[i].z = newPos;
}
// Update the buffer
vb.SetData(vertices);
Nml.Matrix4x4 planeTransform = Nml.Matrix4x4.Identity;
// Rotate it to make look pretty
Nml.Quaternion rotQuat;
Nml.Quaternion.RotateEuler(0, rotTime * 0.37f, rotTime * 0.13f, out rotQuat);
Nml.Quaternion.GetMatrix4x4(ref rotQuat, out planeTransform);
cubeCommand.SetTransform(planeTransform.ToArray());
// Submit current commands queued to the renderer for rendering.
renderer.EndFrame();
}
canvas.Resize += () =>
{
Resize(canvas.Width, canvas.Height);
};
canvas.Closing += () =>
{
Cleanup();
};
ExampleBase.Application.Run(canvas, () =>
{
Update();
});
}
static void Main(string[] args)
{
// Setup a renderering window, this can be handled with any windowing/platform library
var canvas = new ExampleBase.GraphicsCanvas();
// Create the renderer
var renderer = new Fe.Renderer();
// Set the handle from our form so we let Fe create context/devices as appropriate.
renderer.SetWindowHandle(canvas.Handle);
// Initialise the renderer
renderer.Init();
// Create geometry layer command bucker
var geometryBucket = renderer.AddCommandBucket(UInt16.MaxValue);
// Create the shaders
Fe.Shader vertexShader, fragmentShader;
switch (renderer.GetRendererType())
{
case Fe.RendererType.OpenGL:
vertexShader = new Fe.Shader(Fe.ShaderType.Vertex, File.ReadAllText("stresstest.vert"));
fragmentShader = new Fe.Shader(Fe.ShaderType.Fragment, File.ReadAllText("stresstest.frag"));
break;
default:
throw new Exception("Unknown backend renderer type");
}
Fe.ShaderProgram program = new ShaderProgram(vertexShader, fragmentShader);
// Vertices that make up a cube.
PosColorVertex[] vertices =
{
new PosColorVertex(-0.25f, 0.25f, 0.25f, 0xff000000),
new PosColorVertex(0.25f, 0.25f, 0.25f, 0xff0000ff),
new PosColorVertex(-0.25f, -0.25f, 0.25f, 0xff00ff00),
new PosColorVertex(0.25f, -0.25f, 0.25f, 0xff00ffff),
new PosColorVertex(-0.25f, 0.25f, -0.25f, 0xffff0000),
new PosColorVertex(0.25f, 0.25f, -0.25f, 0xffff00ff),
new PosColorVertex(-0.25f, -0.25f, -0.25f, 0xffffff00),
new PosColorVertex(0.25f, -0.25f, -0.25f, 0xffffffff),
};
// Indices that make up a cube.
uint[] indexPositions =
{
0, 1, 2,
1, 3, 2,
4, 6, 5,
5, 6, 7,
0, 2, 4,
4, 2, 6,
1, 5, 3,
5, 7, 3,
0, 4, 1,
4, 5, 1,
2, 3, 6,
6, 3, 7,
};
// Create vertex buffer for our cube
var vb = new Fe.VertexBuffer <PosColorVertex>(vertices);
var ib = new Fe.IndexBuffer(indexPositions);
// Specify number of cube dimensions
int dim = 16;
int totalCubeCount = dim * dim * dim;
// Threshold for the timings
const double highThreshold = 1000 / 65;
const double lowThreshold = 1000 / 57;
float animTime = 0.0f; // Use for animating the cubes
// Create some timers and run the main loop
Stopwatch frameTimer = Stopwatch.StartNew();
int frameCount = 0;
double frameTime = 0;
double frameTimeAccum = 0;
double averageFrameTime = 0;
void Resize(int width, int height)
{
var view = new Fe.View(0, 0, width, height);
renderer.SetView(0, view);
// Set up a projection matrix
var projectionMatrix = Nml.Matrix4x4.PerspectiveProjectionRH(Nml.Common.Pi / 4, (float)width / (float)height, 0.1f, 100.0f);
projectionMatrix *= Nml.Matrix4x4.Translate(-5.0f, -5.0f, -50.0f);
view.SetTransform(Nml.Matrix4x4.Identity.ToArray(), projectionMatrix.ToArray());
renderer.Reset(width, height);
}
// Force an Initial resize, you could handle this with some event on your window if you wanted.
Resize(canvas.Width, canvas.Height);
void Cleanup()
{
// Kill off the renderer and clean up all underlying resources.
renderer.Dispose();
}
void Update()
{
frameTime = frameTimer.Elapsed.TotalMilliseconds;
frameTimer.Restart();
frameTimeAccum += frameTime;
// Increase/Decrease dimensions of cubes based upon average frame time
if (frameTimeAccum >= 1000)
{
averageFrameTime = frameTimeAccum / frameCount;
if (averageFrameTime < highThreshold)
{
dim = dim + 2;
}
else if (averageFrameTime > lowThreshold)
{
dim = Math.Max(dim - 1, 2);
}
frameCount = 0;
frameTimeAccum = 0;
canvas.Title = String.Format("Cube count: {0}, Avg Frametime: {1:N2} , Avg FPS: {2:N0}", totalCubeCount, averageFrameTime, 1000f / averageFrameTime);
}
frameCount++;
// Starting point
Nml.Vector3 initial = new Nml.Vector3(
-0.6f * dim / 2.0f,
-0.6f * dim / 2.0f,
-15.0f
);
totalCubeCount = dim * dim * dim;
// Increase the animation
animTime += (float)frameTime * 0.0010f;
for (int x = 0; x < dim; x++)
// Parallel.For(0, dim, x =>
{
for (int y = 0; y < dim; y++)
{
for (int z = 0; z < dim; z++)
{
//var cubeCommand = geometryBucket.AddCommand<DrawIndexed>(1);
var cubeCommand = geometryBucket.AddCommand(1);
cubeCommand.SetShaderProgram(program);
cubeCommand.SetVertexBuffer(vb);
cubeCommand.SetIndexBuffer(ib);
Nml.Matrix4x4 cubeTransform = Nml.Matrix4x4.Identity;
// Rotate it to make look pretty
Nml.Quaternion rotQuat;
Nml.Quaternion.RotateEuler(animTime + x * 0.21f, animTime + y * 0.37f, animTime + y * 0.13f, out rotQuat);
Nml.Quaternion.GetMatrix4x4(ref rotQuat, out cubeTransform);
// Set translation part
cubeTransform.M14 = initial.x + x * 0.8f;
cubeTransform.M24 = initial.y + y * 0.8f;
cubeTransform.M34 = initial.z + z * 0.8f;
// Slightly faster to set the transform via the individual matrix components as we can avoid a memory allocation of a temporary array.
cubeCommand.SetTransform(
cubeTransform.M11, cubeTransform.M12, cubeTransform.M13, cubeTransform.M14,
cubeTransform.M21, cubeTransform.M22, cubeTransform.M23, cubeTransform.M24,
cubeTransform.M31, cubeTransform.M32, cubeTransform.M33, cubeTransform.M34,
cubeTransform.M41, cubeTransform.M42, cubeTransform.M43, cubeTransform.M44);
}
}
}
//);
// Submit current commands queued to the renderer for rendering.
renderer.EndFrame();
}
canvas.Resize += () =>
{
Resize(canvas.Width, canvas.Height);
};
canvas.Closing += () =>
{
Cleanup();
};
ExampleBase.Application.Run(canvas, () =>
{
Update();
});
}