internal void Draw(PrimitiveType primitiveType, Matrix world)
{
Threading.EnsureUIThread();
GL.FrontFace(FrontFaceDirection.Ccw);
GL.CullFace(CullFaceMode.Back);
GL.Enable(EnableCap.CullFace);
GL.Enable(EnableCap.DepthTest);
GL.DepthFunc(DepthFunction.Less);
Material.Shader.Bind();
Material.Apply();
VertexBuffer.BindVertexArray();
VertexBuffer.Bind();
IndexBuffer.Bind();
VertexBuffer.VertexDeclaration.Apply(Material.Shader, IntPtr.Zero);
REngine.CheckGLError();
Material.Shader.BindSemantics(Matrix.Identity * world, REngine.camera.View, REngine.camera.Projection);
REngine.CheckGLError();
GL.DrawElements(primitiveType, IndexBuffer.IndexCount, DrawElementsType.UnsignedInt, IntPtr.Zero);
Material.Shader.Unbind();
IndexBuffer.Unbind();
VertexBuffer.Unbind();
VertexBuffer.UnbindVertexArray();
}
public override void Render()
{
if (IsDrawable)
{
ApplyState();
base.Render();
/*
* GL.Enable(EnableCap.CullFace);
* REngine.CheckGLError();
* GL.FrontFace(FrontFaceDirection.Ccw);
* REngine.CheckGLError();
* GL.CullFace(CullFaceMode.FrontAndBack);
* REngine.CheckGLError();
*/
_material.Shader.Bind();
_material.Apply();
VertexBuffer.BindVertexArray();
VertexBuffer.Bind();
VertexBuffer.VertexDeclaration.Apply(_material.Shader, IntPtr.Zero);
_material.Shader.BindSemantics(matrix, REngine.camera.viewMatrix, REngine.camera.projMatrix);
if (PrimitiveType == RPrimitiveType.Points)
{
GL.PointParameter(PointParameterName.PointSizeMin, 0.0f);
GL.PointParameter(PointParameterName.PointSizeMax, 1024.0f);
GL.Enable(EnableCap.PointSprite);
GL.Enable(EnableCap.PointSmooth);
GL.Enable(EnableCap.ProgramPointSize);
}
if (_index != null)
{
var shortIndices = _index.IndexElementSize == RIndexElementSize.SixteenBits;
var indexElementType = shortIndices ? DrawElementsType.UnsignedShort : DrawElementsType.UnsignedInt;
var indexElementSize = shortIndices ? 2 : 4;
var indexOffsetInBytes = (IntPtr)(indexElementSize);
var indexElementCount = _index.GetElementCountArray((PrimitiveType)PrimitiveType, vertCount);
_index.Bind();
REngine.CheckGLError();
GL.DrawRangeElements((PrimitiveType)PrimitiveType, 0, 1, _index.IndexCount, indexElementType, indexOffsetInBytes);
REngine.CheckGLError();
_index.Unbind();
REngine.CheckGLError();
}
else
{
GL.DrawArrays((PrimitiveType)PrimitiveType, 0, VertexBuffer.VertexCount);
REngine.CheckGLError();
}
if (PrimitiveType == RPrimitiveType.Points)
{
GL.Disable(EnableCap.PointSprite);
GL.Disable(EnableCap.PointSmooth);
GL.Disable(EnableCap.ProgramPointSize);
}
_material.Shader.Unbind();
VertexBuffer.Unbind();
VertexBuffer.UnbindVertexArray();
}
}
