///<summary> Vector4, Vector2 and Matrix4 in buffers. First is model, second is coords, third is instance matrix translation
/// if separbuffer = true and instancematrix is null, it makes a buffer for you to fill up externally.
/// if separbuffer = true it makes as separate buffer for instancematrix
/// if separbuffer = true and instancematrix is null, you fill up the separbuffer yourself outside of this (maybe auto generated).
/// You can get this buffer using items.LastBuffer()
/// Attributes in 0,1,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Vector2Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt,
Vector4[] vectors, Vector2[] coords, Matrix4[] instancematrix,
IGLRenderItemData id = null, int ic = 1,
bool separbuf = false, int matrixdivisor = 1)
{
var va = items.NewArray();
GLBuffer vbuf1 = items.NewBuffer();
GLBuffer vbuf2 = vbuf1;
int posi = 2;
if (separbuf)
{
vbuf1.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * coords.Length);
vbuf2 = items.NewBuffer();
if (instancematrix != null)
{
vbuf2.AllocateBytes(GLBuffer.Mat4size * instancematrix.Length);
}
posi = 0;
}
else
{
vbuf1.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * coords.Length + GLBuffer.Vec4size + GLBuffer.Mat4size * instancematrix.Length); // due to alignment, add on a little
}
vbuf1.Fill(vectors);
vbuf1.Fill(coords);
if (instancematrix != null)
{
vbuf2.Fill(instancematrix);
}
vbuf1.Bind(va, 0, vbuf1.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at 0
vbuf1.Bind(va, 1, vbuf1.Positions[1], 8);
va.Attribute(1, 1, 2, VertexAttribType.Float); // bp 1 at 1
va.MatrixAttribute(2, 4); // bp 2 at 4-7
vbuf2.Bind(va, 2, instancematrix != null ? vbuf2.Positions[posi]: 0, 64, matrixdivisor); // use a binding
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary> Vector4 and Vector2 and index array in a tuple. Element index is created. In attributes 0,1. No primitive restart</summary>
public static GLRenderableItem CreateVector4Vector2Indexed(GLItemsList items, PrimitiveType prim, GLRenderState pt, Tuple <Vector4[], Vector2[], uint[]> vectors,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var dt = GL4Statics.DrawElementsTypeFromMaxEID((uint)vectors.Item1.Length - 1);
var ri = CreateVector4Vector2(items, prim, pt, vectors.Item1, vectors.Item2, id, ic, seconddivisor);
ri.CreateElementIndex(items.NewBuffer(), vectors.Item3, dt);
return(ri);
}
/// <summary> Two Vector4s, in separate buffers. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector4Buf2(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, Vector4[] secondvector,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var v1 = items.NewBuffer();
v1.AllocateBytes(GLBuffer.Vec4size * vectors.Length);
v1.Fill(vectors);
var v2 = items.NewBuffer();
v2.AllocateBytes(GLBuffer.Vec4size * secondvector.Length);
v2.Fill(secondvector);
var va = items.NewArray();
v1.Bind(va, 0, v1.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
v2.Bind(va, 1, v2.Positions[0], 16, seconddivisor);
va.Attribute(1, 1, 4, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary>Vector4, in attribute 0</summary>
public static GLRenderableItem CreateVector4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors,
IGLRenderItemData id = null, int ic = 1)
{
var vb = items.NewBuffer();
vb.AllocateFill(vectors);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16); // bind buffer to binding point 0
va.Attribute(0, 0, 4, VertexAttribType.Float); // bind binding point 0 to attribute point 0 with 4 float components
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
///<summary> Floats packed into buffer with configurable component number (1,2,4)
/// Attributes in 0.</summary>
public static GLRenderableItem CreateFloats(GLItemsList items, PrimitiveType prim, GLRenderState pt, float[] floats, int components,
IGLRenderItemData id = null, int ic = 1)
{
var vb = items.NewBuffer();
vb.AllocateFill(floats);
//float[] ouwt = vb.ReadFloats(0, floats.Length); // test read back
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], sizeof(float) * components);
va.Attribute(0, 0, components, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, floats.Length / components, va, id, ic));
}
///<summary> Vector3 packed using GLBuffer.FillPacked2vec. Offsets and mult specify range
/// Attributes in 0.</summary>
public static GLRenderableItem CreateVector3Packed2(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector3[] vectors, Vector3 offsets, float mult,
IGLRenderItemData id = null, int ic = 1)
{
var vb = items.NewBuffer();
vb.AllocateBytes(sizeof(uint) * 2 * vectors.Length);
vb.FillPacked2vec(vectors, offsets, mult);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 8);
va.AttributeI(0, 0, 2, VertexAttribType.UnsignedInt);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
///<summary> Matrix4.
/// Attributes in 4-7 set up.</summary>
public static GLRenderableItem CreateMatrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Matrix4[] matrix, int drawcount,
IGLRenderItemData id = null, int ic = 1, int matrixdivisor = 1)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Mat4size * matrix.Length);
vb.Fill(matrix);
var va = items.NewArray();
vb.Bind(va, 2, vb.Positions[0], 64, matrixdivisor); // use a binding
va.MatrixAttribute(2, 4); // bp 2 at attribs 4-7
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
///<summary> Vector4 and Matrix4. Matrix4 is a buffer reference.
/// Attributes in 0,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, GLBuffer matrix,
IGLRenderItemData id = null, int ic = 1, int matrixdivisor = 1)
{
var vb = items.NewBuffer();
vb.AllocateFill(vectors); // push in model vectors
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at attrib 0
matrix.Bind(va, 2, matrix.Positions[0], 64, matrixdivisor); // use a binding
va.MatrixAttribute(2, 4); // bp 2 at attribs 4-7
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary> Vector4 and Vector2. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector2(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, Vector2[] coords,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * coords.Length);
vb.Fill(vectors);
vb.Fill(coords);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
vb.Bind(va, 1, vb.Positions[1], 8, seconddivisor);
va.Attribute(1, 1, 2, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary>Vector4, Color4, optional instance data and count
/// in attribute 0 and 1 setup vector4 and vector4 colours</summary>
public static GLRenderableItem CreateVector4Color4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, Color4[] colours, IGLRenderItemData id = null, int ic = 1)
{
var vb = items.NewBuffer(); // they all follow this pattern, grab a buffer (unless supplied)
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length * 2); // allocate
vb.Fill(vectors); // fill
vb.Fill(colours, vectors.Length);
var va = items.NewArray(); // vertex array
vb.Bind(va, 0, vb.Positions[0], 16); // buffer bind to vertex array at bindingpoint 0, bufferpos, stride
va.Attribute(0, 0, 4, VertexAttribType.Float); // bind bindingpoint 0 to attribute index 0 (in shader), 4 components, float
vb.Bind(va, 1, vb.Positions[1], 16); // buffer bind to vertex array at bindingpoint 1, bufferpos, stride
va.Attribute(1, 1, 4, VertexAttribType.Float); // bind bindingpoint 1 to attribute index 1 (in shader), 4 components, float
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic)); // create new RI
}