///<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> Two Vector4s, second in a given buffer. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, GLBuffer buf2, int bufoff = 0,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length);
vb.Fill(vectors);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
buf2.Bind(va, 1, bufoff, 16, seconddivisor);
va.Attribute(1, 1, 4, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
///<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, Vector2 and Matrix4 in buffers. First is model, second is coords, third is instance matrix translation
/// All are supplied by buffer references
/// Attributes in 0,1,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Vector2Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt,
GLBuffer vbuf1, GLBuffer vbuf2, GLBuffer vbuf3,
int vertexcount,
IGLRenderItemData id = null, int ic = 1,
int matrixdivisor = 1,
int buf1pos = 0, int buf2pos = 0, int buf3pos = 0)
{
var va = items.NewArray();
vbuf1.Bind(va, 0, buf1pos, 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at 0
vbuf2.Bind(va, 1, buf2pos, 8);
va.Attribute(1, 1, 2, VertexAttribType.Float); // bp 1 at 1
va.MatrixAttribute(2, 4); // bp 2 at 4-7
vbuf3.Bind(va, 2, buf3pos, 64, matrixdivisor); // use a binding
return(new GLRenderableItem(prim, pt, vertexcount, va, id, ic));
}
/// <summary> Two Vector4s, and a Vector2. Second given in buffer. First/Second in one buffer. Second and Third vector can be instance divided. In attributes 0,1,2</summary>
public static GLRenderableItem CreateVector4Vector4Vector2(GLItemsList items, PrimitiveType prim, GLRenderState pt,
Vector4[] vectors, GLBuffer secondvector, int secondoffset, Vector2[] thirdvector,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0, int thirddivisor = 0)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * thirdvector.Length); // vec2 aligned vec4
vb.Fill(vectors);
vb.Fill(thirdvector);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
secondvector.Bind(va, 1, secondoffset, 16, seconddivisor);
va.Attribute(1, 1, 4, VertexAttribType.Float);
vb.Bind(va, 2, vb.Positions[1], 8, thirddivisor);
va.Attribute(2, 2, 2, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
