/// <summary> Called by render list and executes the operation </summary>
public override void Execute(GLMatrixCalc c)
{
TransformFeedback.Bind(); // bind this transformfeedback to target transform feedback
GLStatics.Check();
// bind these buffer at offset/set and binding index starting at 0
for (int i = 0; i < VaryingBuffers.Length; i++)
{
//System.Diagnostics.Debug.WriteLine($"TF {TransformFeedback.Id} bp {i} to buf {VaryingBuffers[i].Id}");
VaryingBuffers[i].BindTransformFeedback(i, TransformFeedback.Id, Offsets == null ? 0 : Offsets[i], Sizes == null ? 0 : Sizes[i]);
}
GLStatics.Check();
GLTransformFeedback.Begin(PrimitiveType); // and start
GLStatics.Check();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Closed += ShaderTest_Closed;
gl3dcontroller = new Controller3D();
gl3dcontroller.PaintObjects = ControllerDraw;
gl3dcontroller.MatrixCalc.PerspectiveNearZDistance = 1f;
gl3dcontroller.MatrixCalc.PerspectiveFarZDistance = 1000f;
gl3dcontroller.ZoomDistance = 20F;
gl3dcontroller.Start(glwfc, new Vector3(0, 0, 0), new Vector3(110f, 0, 0f), 1F);
gl3dcontroller.KeyboardTravelSpeed = (ms, eyedist) =>
{
return((float)ms / 100.0f);
};
items.Add(new GLColorShaderWorld(), "COSW");
var vs = new GLPLVertexShaderColorModelObjectTranslation(new string[] { "modelpos" }, TransformFeedbackMode.InterleavedAttribs);
var fs = new GLPLFragmentShaderVSColor();
var cosot = new GLShaderPipeline(vs, fs);
items.Add(cosot, "COSOT");
varyingbuffer = new GLBuffer(10000, true, BufferUsageHint.DynamicCopy);
cosot.StartAction += (a, s) => { varyingbuffer.BindTransformFeedback(0); GLTransformFeedback.Begin(TransformFeedbackPrimitiveType.Triangles); };
cosot.FinishAction += (s) => { GLTransformFeedback.End(); GLBuffer.UnbindTransformFeedback(0); };
ts1 = new GLOperationQueryTimeStamp();
ts2 = new GLOperationQueryTimeStamp();
rObjects.Add(ts1);
#region coloured lines
GLRenderState def = new GLRenderState()
{
DepthTest = true
}; // set up default state for fixed values - no depth test, rely on stencil
#region Coloured triangles
if (true)
{
GLRenderState rc = GLRenderState.Tri(def);
rc.CullFace = true;
shape = GLCubeObjectFactory.CreateSolidCubeFromTriangles(5f);
rObjects.Add(cosot, "Tri1",
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Triangles, rc,
shape,
new Color4[] { Color4.Red, Color4.Red, Color4.Red, Color4.Red, Color4.Yellow, Color4.Yellow },
new GLRenderDataTranslationRotation(new Vector3(10, 3, 20))
));
}
for (int i = 0; i < 1; i++)
{
GLRenderState lines = GLRenderState.Lines(def, 5);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, lines,
GLShapeObjectFactory.CreateLines(new Vector3(-100, -0, -100), new Vector3(-100, -0, 100), new Vector3(10, 0, 0), 21),
new Color4[] { Color.White, Color.Red, Color.DarkRed, Color.DarkRed })
);
GLRenderState lines2 = GLRenderState.Lines(def, 1);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, lines2,
GLShapeObjectFactory.CreateLines(new Vector3(-100, -0, -100), new Vector3(100, -0, -100), new Vector3(0, 0, 10), 21),
new Color4[] { Color.Orange, Color.Blue, Color.DarkRed, Color.DarkRed }));
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, lines2,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 10, -100), new Vector3(-100, 10, 100), new Vector3(10, 0, 0), 21),
new Color4[] { Color.Yellow, Color.Orange, Color.Yellow, Color.Orange })
);
rObjects.Add(items.Shader("COSW"),
GLRenderableItem.CreateVector4Color4(items, PrimitiveType.Lines, lines2,
GLShapeObjectFactory.CreateLines(new Vector3(-100, 10, -100), new Vector3(100, 10, -100), new Vector3(0, 0, 10), 21),
new Color4[] { Color.Yellow, Color.Orange, Color.Yellow, Color.Orange })
);
}
rObjects.Add(ts2);
#endregion
#endregion
#region Matrix Calc Uniform
items.Add(new GLMatrixCalcUniformBlock(), "MCUB"); // def binding of 0
#endregion
}