protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 0.1f;
gl3dcontroller.ZoomDistance = 40F;
gl3dcontroller.MouseRotateAmountPerPixel = 0.05f;
gl3dcontroller.Start(glwfc, new Vector3(0, 0, 0), new Vector3(135, 0, 0), 1F);
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms / 100.0f);
};
items.Add(new GLColorShaderWorld(), "COSW");
GLRenderState rl1 = GLRenderState.Lines(1);
{
rObjects.Add(items.Shader("COSW"), "L1", // horizontal
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 0, -100), new Vector3(-100, 0, 100), new Vector3(10, 0, 0), 21),
new Color4[] { Color.Gray })
);
rObjects.Add(items.Shader("COSW"), // vertical
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 0, -100), new Vector3(100, 0, -100), new Vector3(0, 0, 10), 21),
new Color4[] { Color.Gray })
);
}
// Number markers using instancing and 2d arrays, each with its own transform
{
Bitmap[] numbers = new Bitmap[20];
Matrix4[] numberpos = new Matrix4[20];
Font fnt = new Font("Arial", 44);
for (int i = 0; i < numbers.Length; i++)
{
int v = -100 + i * 10;
numbers[i] = new Bitmap(100, 100);
GLOFC.Utils.BitMapHelpers.DrawTextCentreIntoBitmap(ref numbers[i], v.ToString(), fnt, System.Drawing.Text.TextRenderingHint.ClearTypeGridFit, Color.Red, Color.AliceBlue);
numberpos[i] = Matrix4.CreateScale(1);
numberpos[i] *= Matrix4.CreateRotationX(-80f.Radians());
numberpos[i] *= Matrix4.CreateTranslation(new Vector3(20, 0, v));
}
GLTexture2DArray array = new GLTexture2DArray(numbers, SizedInternalFormat.Rgba8, ownbmp: true);
items.Add(array, "Nums");
items.Add(new GLShaderPipeline(new GLPLVertexShaderModelMatrixTexture(), new GLPLFragmentShaderTexture2DIndexed(0)), "IC-2");
GLRenderState rq = GLRenderState.Quads(cullface: false);
GLRenderDataTexture rt = new GLRenderDataTexture(items.Tex("Nums"));
rObjects.Add(items.Shader("IC-2"), "1-b",
GLRenderableItem.CreateVector4Vector2Matrix4(items, PrimitiveType.Quads, rq,
GLShapeObjectFactory.CreateQuad(1.0f), GLShapeObjectFactory.TexQuadCW, numberpos, rt,
numberpos.Length));
}
{
int left = -40, right = 40, bottom = -20, top = +20, front = -40, back = 40;
Vector4[] lines2 = new Vector4[]
{
new Vector4(left, bottom, front, 1), new Vector4(left, top, front, 1),
new Vector4(left, top, front, 1), new Vector4(right, top, front, 1),
new Vector4(right, top, front, 1), new Vector4(right, bottom, front, 1),
new Vector4(right, bottom, front, 1), new Vector4(left, bottom, front, 1),
new Vector4(left, bottom, back, 1), new Vector4(left, top, back, 1),
new Vector4(left, top, back, 1), new Vector4(right, top, back, 1),
new Vector4(right, top, back, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, bottom, back, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, bottom, front, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, top, front, 1), new Vector4(left, top, back, 1),
new Vector4(right, bottom, front, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, top, front, 1), new Vector4(right, top, back, 1),
};
items.Add(new GLFixedShader(System.Drawing.Color.Yellow), "LINEYELLOW");
rObjects.Add(items.Shader("LINEYELLOW"),
GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rl1, lines2));
}
items.Add(new ShaderV2(), "V2");
Vector4[] points = new Vector4[]
{
new Vector4(-40, -20, -40, 1),
new Vector4(+40, +20, +40, 1),
};
GLRenderState rltot = GLRenderState.Tri();
rObjects.Add(items.Shader("V2"), GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rltot, points, ic: 1));
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // create a matrix uniform block
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead); // 32 vec4 back
atomicbuffer = items.NewAtomicBlock(6);
atomicbuffer.AllocateBytes(sizeof(float) * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicCopy);
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 0.1f;
gl3dcontroller.ZoomDistance = 40F;
gl3dcontroller.Start(glwfc, new Vector3(30, 0, 0), new Vector3(135f, 0, 0), 1F);
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms / 100.0f);
};
items.Add(new GLColorShaderWorld(), "COSW");
GLRenderState rl1 = GLRenderState.Lines(1);
{
rObjects.Add(items.Shader("COSW"), "L1", // horizontal
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 0, -100), new Vector3(-100, 0, 100), new Vector3(10, 0, 0), 21),
new Color4[] { Color.Gray })
);
rObjects.Add(items.Shader("COSW"), // vertical
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 0, -100), new Vector3(100, 0, -100), new Vector3(0, 0, 10), 21),
new Color4[] { Color.Gray })
);
}
// New geo shader
Vector4[] points = new Vector4[]
{
new Vector4(20, -5, -10, 1), //PT1
new Vector4(40, +5, +10, 1), //PT7
};
items.Add(new ShaderV2(), "V2");
GLRenderState rltot = GLRenderState.Tri();
rObjects.Add(items.Shader("V2"), GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rltot, points, ic: 9)); // ic select number of slices
int left = 20, right = 40, bottom = -5, top = +5, front = -10, back = 10;
Vector4[] lines2 = new Vector4[]
{
new Vector4(left, bottom, front, 1), new Vector4(left, top, front, 1),
new Vector4(left, top, front, 1), new Vector4(right, top, front, 1),
new Vector4(right, top, front, 1), new Vector4(right, bottom, front, 1),
new Vector4(right, bottom, front, 1), new Vector4(left, bottom, front, 1),
new Vector4(left, bottom, back, 1), new Vector4(left, top, back, 1),
new Vector4(left, top, back, 1), new Vector4(right, top, back, 1),
new Vector4(right, top, back, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, bottom, back, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, bottom, front, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, top, front, 1), new Vector4(left, top, back, 1),
new Vector4(right, bottom, front, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, top, front, 1), new Vector4(right, top, back, 1),
};
items.Add(new GLFixedShader(System.Drawing.Color.Yellow), "LINEYELLOW");
rObjects.Add(items.Shader("LINEYELLOW"),
GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rl1, lines2));
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead);
atomicbuffer = items.NewAtomicBlock(6);
atomicbuffer.AllocateBytes(sizeof(float) * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicCopy);
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // create a matrix uniform block
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
//GLStatics.EnableDebug(DebugProc);
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 1f;
gl3dcontroller.MatrixCalc.PerspectiveFarZDistance = 500000f;
gl3dcontroller.ZoomDistance = 5000F;
gl3dcontroller.YHoldMovement = true;
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms * 10.0f);
};
gl3dcontroller.MatrixCalc.InPerspectiveMode = true;
gl3dcontroller.Start(glwfc, new Vector3(0, 0, -35000), new Vector3(135f, 0, 0), 0.31622F);
items.Add(new GLColorShaderWorld(), "COSW");
GLRenderState rl1 = GLRenderState.Lines(1);
float h = -1;
if (h != -1)
{
Color cr = Color.FromArgb(60, Color.Gray);
rObjects.Add(items.Shader("COS-1L"), // horizontal
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-35000, h, -35000), new Vector3(-35000, h, 35000), new Vector3(1000, 0, 0), 70),
new Color4[] { cr })
);
rObjects.Add(items.Shader("COS-1L"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-35000, h, -35000), new Vector3(35000, h, -35000), new Vector3(0, 0, 1000), 70),
new Color4[] { cr })
);
}
int hsize = 35000, vsize = 2000, zsize = 35000;
{
int left = -hsize, right = hsize, bottom = -vsize, top = +vsize, front = -zsize, back = zsize;
Vector4[] lines2 = new Vector4[]
{
new Vector4(left, bottom, front, 1), new Vector4(left, top, front, 1),
new Vector4(left, top, front, 1), new Vector4(right, top, front, 1),
new Vector4(right, top, front, 1), new Vector4(right, bottom, front, 1),
new Vector4(right, bottom, front, 1), new Vector4(left, bottom, front, 1),
new Vector4(left, bottom, back, 1), new Vector4(left, top, back, 1),
new Vector4(left, top, back, 1), new Vector4(right, top, back, 1),
new Vector4(right, top, back, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, bottom, back, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, bottom, front, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, top, front, 1), new Vector4(left, top, back, 1),
new Vector4(right, bottom, front, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, top, front, 1), new Vector4(right, top, back, 1),
};
items.Add(new GLFixedShader(System.Drawing.Color.Yellow), "LINEYELLOW");
rObjects.Add(items.Shader("LINEYELLOW"),
GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rl1, lines2));
}
// bounding box
boundingbox = new Vector4[]
{
new Vector4(-hsize, -vsize, -zsize, 1),
new Vector4(-hsize, vsize, -zsize, 1),
new Vector4(hsize, vsize, -zsize, 1),
new Vector4(hsize, -vsize, -zsize, 1),
new Vector4(-hsize, -vsize, zsize, 1),
new Vector4(-hsize, vsize, zsize, 1),
new Vector4(hsize, vsize, zsize, 1),
new Vector4(hsize, -vsize, zsize, 1),
};
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // create a matrix uniform block
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead); // 32 vec4 back
atomicbuffer = items.NewAtomicBlock(6);
atomicbuffer.AllocateBytes(sizeof(float) * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicCopy);
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 256, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead); // 32 vec4 back
volumetricblock = new GLVolumetricUniformBlock();
items.Add(volumetricblock, "VB");
{
Bitmap[] numbers = new Bitmap[70];
Matrix4[] numberpos = new Matrix4[numbers.Length];
Matrix4[] numberpos2 = new Matrix4[numbers.Length];
Font fnt = new Font("Arial", 20);
for (int i = 0; i < numbers.Length; i++)
{
int v = -35000 + i * 1000;
numbers[i] = new Bitmap(100, 100);
GLOFC.Utils.BitMapHelpers.DrawTextCentreIntoBitmap(ref numbers[i], v.ToString(), fnt, System.Drawing.Text.TextRenderingHint.ClearTypeGridFit, Color.Red, Color.AliceBlue);
numberpos[i] = Matrix4.CreateScale(1);
numberpos[i] *= Matrix4.CreateRotationX(-25f.Radians());
numberpos[i] *= Matrix4.CreateTranslation(new Vector3(35500, 0, v));
numberpos2[i] = Matrix4.CreateScale(1);
numberpos2[i] *= Matrix4.CreateRotationX(-25f.Radians());
numberpos2[i] *= Matrix4.CreateTranslation(new Vector3(v, 0, -35500));
}
GLTexture2DArray array = new GLTexture2DArray(numbers, SizedInternalFormat.Rgba8, ownbmp: true);
items.Add(array, "Nums");
items.Add(new GLShaderPipeline(new GLPLVertexShaderModelMatrixTexture(), new GLPLFragmentShaderTexture2DIndexed(0)), "IC-2");
GLRenderState rq = GLRenderState.Quads(cullface: false);
GLRenderDataTexture rt = new GLRenderDataTexture(items.Tex("Nums"));
rObjects.Add(items.Shader("IC-2"), "1-b",
GLRenderableItem.CreateVector4Vector2Matrix4(items, PrimitiveType.Quads, rq,
GLShapeObjectFactory.CreateQuad(500.0f), GLShapeObjectFactory.TexQuadCW, numberpos,
rt, numberpos.Length));
rObjects.Add(items.Shader("IC-2"), "1-b2",
GLRenderableItem.CreateVector4Vector2Matrix4(items, PrimitiveType.Quads, rq,
GLShapeObjectFactory.CreateQuad(500.0f), GLShapeObjectFactory.TexQuadCW, numberpos2,
rt, numberpos.Length));
}
GLTexture3D noise3d = new GLTexture3D(1024, 64, 1024, OpenTK.Graphics.OpenGL4.SizedInternalFormat.R32f); // red channel only
//{ // shows program fill
// for (int ly = 0; ly < noise3d.Depth; ly++)
// {
// float[] fd = new float[noise3d.Width * noise3d.Height];
// float[] fdi = new float[noise3d.Width * noise3d.Height];
// for (int x = 0; x < noise3d.Width; x++)
// {
// for (int y = 0; y < noise3d.Height; y++)
// {
// int p = (y * noise3d.Width + x) * 1;
// float xv = (float)x / (float)noise3d.Width;
// float yv = (float)y / (float)noise3d.Height;
// var c = ((Math.Sin(2 * Math.PI * xv) / 2) + 0.5);
// c += ((Math.Cos(2 * Math.PI * yv) / 2) + 0.5);
// c /= 2;
// fd[p + 0] = (float)(c);
// fdi[p + 0] = 1.0f-(float)(c);
// }
// }
// noise3d.StoreZPlane(ly, 0, 0, noise3d.Width, noise3d.Height, fd, OpenTK.Graphics.OpenGL4.PixelFormat.Red); // only a single float per pixel, stored in RED
// }
//}
ShaderNoiseDisplay ns = new ShaderNoiseDisplay();
ns.StartAction += (a, m) => { noise3d.Bind(3); };
items.Add(ns, "NS");
GLRenderState rv = GLRenderState.Tri();
noisebox = GLRenderableItem.CreateNullVertex(OpenTK.Graphics.OpenGL4.PrimitiveType.Points, rv); // no vertexes, all data from bound volumetric uniform, no instances as yet
rObjects.Add(items.Shader("NS"), noisebox);
// make a compute shader noise and run it, to fill up noise3d buffer
ComputeShaderNoise csn = new ComputeShaderNoise(noise3d.Width, noise3d.Height, noise3d.Depth, 32, 4, 32); // must be a multiple of localgroupsize in csn
csn.StartAction += (A, m) => { noise3d.BindImage(3); };
items.Add(csn, "CE1");
GLComputeShaderList p = new GLComputeShaderList(); // demonstrate a render list holding a compute shader.
p.Add(csn);
p.Run(); // run the shader to compute into the noise3d block the noise.
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
//GLStatics.EnableDebug(DebugProc);
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 1f;
gl3dcontroller.MatrixCalc.PerspectiveFarZDistance = 500000f;
gl3dcontroller.ZoomDistance = 500F;
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms * 20.0f);
};
//gl3dcontroller.MatrixCalc.InPerspectiveMode = false;
gl3dcontroller.Start(glwfc, new Vector3(0, 0, 0), new Vector3(135f, 0, 0), 0.01F);
items.Add(new GLColorShaderWorld(), "COSW");
GLRenderState rl1 = GLRenderState.Lines(1);
float h = 0;
{
rObjects.Add(items.Shader("COSW"), // horizontal
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-35000, h, -35000), new Vector3(-35000, h, 35000), new Vector3(1000, 0, 0), 70),
new Color4[] { Color.Gray })
);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, rl1,
GLShapeObjectFactory.CreateLines(new Vector3(-35000, h, -35000), new Vector3(35000, h, -35000), new Vector3(0, 0, 1000), 70),
new Color4[] { Color.Gray })
);
}
int hsize = 35000, vsize = 2000, zsize = 35000;
{
int left = -hsize, right = hsize, bottom = -vsize, top = +vsize, front = -zsize, back = zsize;
Vector4[] lines2 = new Vector4[]
{
new Vector4(left, bottom, front, 1), new Vector4(left, top, front, 1),
new Vector4(left, top, front, 1), new Vector4(right, top, front, 1),
new Vector4(right, top, front, 1), new Vector4(right, bottom, front, 1),
new Vector4(right, bottom, front, 1), new Vector4(left, bottom, front, 1),
new Vector4(left, bottom, back, 1), new Vector4(left, top, back, 1),
new Vector4(left, top, back, 1), new Vector4(right, top, back, 1),
new Vector4(right, top, back, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, bottom, back, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, bottom, front, 1), new Vector4(left, bottom, back, 1),
new Vector4(left, top, front, 1), new Vector4(left, top, back, 1),
new Vector4(right, bottom, front, 1), new Vector4(right, bottom, back, 1),
new Vector4(right, top, front, 1), new Vector4(right, top, back, 1),
};
items.Add(new GLFixedShader(System.Drawing.Color.Yellow), "LINEYELLOW");
rObjects.Add(items.Shader("LINEYELLOW"),
GLRenderableItem.CreateVector4(items, PrimitiveType.Lines, rl1, lines2));
}
{
Bitmap[] numbers = new Bitmap[70];
Matrix4[] numberpos = new Matrix4[numbers.Length];
Font fnt = new Font("Arial", 20);
for (int i = 0; i < numbers.Length; i++)
{
int v = -35000 + i * 1000;
numbers[i] = new Bitmap(100, 100);
GLOFC.Utils.BitMapHelpers.DrawTextCentreIntoBitmap(ref numbers[i], v.ToString(), fnt, System.Drawing.Text.TextRenderingHint.ClearTypeGridFit, Color.Red, Color.AliceBlue);
numberpos[i] = Matrix4.CreateScale(1);
numberpos[i] *= Matrix4.CreateRotationX(-25f.Radians());
numberpos[i] *= Matrix4.CreateTranslation(new Vector3(35500, 0, v));
}
GLTexture2DArray array = new GLTexture2DArray(numbers, SizedInternalFormat.Rgba8, ownbmp: true);
items.Add(array, "Nums");
items.Add(new GLShaderPipeline(new GLPLVertexShaderModelMatrixTexture(), new GLPLFragmentShaderTexture2DIndexed(0)), "IC-2");
items.Shader("IC-2").StartAction += (s, m) => { items.Tex("Nums").Bind(1); GL.Disable(EnableCap.CullFace); };
items.Shader("IC-2").FinishAction += (s) => { GL.Enable(EnableCap.CullFace); };
// investigate why its wrapping when we asked for it TexQUAD 1 which should interpolate over surface..
GLRenderState rq = GLRenderState.Quads(cullface: false);
GLRenderDataTexture rt = new GLRenderDataTexture(items.Tex("Nums"));
rObjects.Add(items.Shader("IC-2"), "1-b",
GLRenderableItem.CreateVector4Vector2Matrix4(items, PrimitiveType.Quads, rq,
GLShapeObjectFactory.CreateQuad(500.0f), GLShapeObjectFactory.TexQuadCW, numberpos, rt,
numberpos.Length));
}
// bounding box
boundingbox = new Vector4[]
{
new Vector4(-hsize, -vsize, -zsize, 1),
new Vector4(-hsize, vsize, -zsize, 1),
new Vector4(hsize, vsize, -zsize, 1),
new Vector4(hsize, -vsize, -zsize, 1),
new Vector4(-hsize, -vsize, zsize, 1),
new Vector4(-hsize, vsize, zsize, 1),
new Vector4(hsize, vsize, zsize, 1),
new Vector4(hsize, -vsize, zsize, 1),
};
items.Add(new ShaderV2(), "V2");
GLRenderState rv = GLRenderState.Tri();
galaxy = GLRenderableItem.CreateNullVertex(PrimitiveType.Points, rv); // no vertexes, all data from bound volumetric uniform, no instances as yet
rObjects.Add(items.Shader("V2"), galaxy);
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead); // 32 vec4 back
atomicbuffer = items.NewAtomicBlock(6);
atomicbuffer.AllocateBytes(sizeof(float) * 32, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicCopy);
dataoutbuffer = items.NewStorageBlock(5);
dataoutbuffer.AllocateBytes(sizeof(float) * 4 * 256, OpenTK.Graphics.OpenGL4.BufferUsageHint.DynamicRead); // 32 vec4 back
volumetricblock = new GLVolumetricUniformBlock();
items.Add(volumetricblock, "VB");
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // create a matrix uniform block
}