//Save VAO to gobject
public bool saveVAO(ulong hash, GLVao vao)
{
//Double check tha the VAO is not already in the dictinary
if (GLVaos.ContainsKey(hash))
{
Console.WriteLine("Vao already in the dictinary, nothing to do...");
return(false);
}
//Save to dictionary
GLVaos[hash] = vao;
return(true);
}
public void renderBSphere(GLSLHelper.GLSLShaderConfig shader)
{
for (int i = 0; i < instance_count; i++)
{
GLVao bsh_Vao = setupBSphere(i);
//Rendering
GL.UseProgram(shader.program_id);
//Step 2 Bind & Render Vao
//Render Bounding Sphere
GL.BindVertexArray(bsh_Vao.vao_id);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
GL.DrawElements(PrimitiveType.Triangles, 600, DrawElementsType.UnsignedInt, (IntPtr)0);
GL.BindVertexArray(0);
bsh_Vao.Dispose();
}
}
public GLMeshVao(MeshMetaData data)
{
vao = new GLVao();
metaData = new MeshMetaData(data);
}
//Constructor
public GLMeshVao()
{
vao = new GLVao();
}
public GLVao generateVAO()
{
GLVao vao = new GLVao();
//Generate VAO
vao.vao_id = GL.GenVertexArray();
GL.BindVertexArray(vao.vao_id);
//Generate VBOs
int[] vbo_buffers = new int[2];
GL.GenBuffers(2, vbo_buffers);
vao.vertex_buffer_object = vbo_buffers[0];
vao.element_buffer_object = vbo_buffers[1];
ErrorCode err = GL.GetError();
if (err != ErrorCode.NoError)
{
Console.WriteLine(GL.GetError());
}
//Bind vertex buffer
int size;
//Upload Vertex Buffer
GL.BindBuffer(BufferTarget.ArrayBuffer, vao.vertex_buffer_object);
GL.BufferData(BufferTarget.ArrayBuffer, vbuffer.Length,
vbuffer, BufferUsageHint.StaticDraw);
GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize,
out size);
if (size != vbuffer.Length)
{
throw new ApplicationException(String.Format("Problem with vertex buffer"));
}
//Upload index buffer
GL.BindBuffer(BufferTarget.ElementArrayBuffer, vao.element_buffer_object);
GL.BufferData(BufferTarget.ElementArrayBuffer, ibuffer.Length,
ibuffer, BufferUsageHint.StaticDraw);
//Assign VertexAttribPointers
for (int i = 0; i < 7; i++)
{
if (this.bufInfo[i] == null)
{
continue;
}
bufInfo buf = this.bufInfo[i];
GL.VertexAttribPointer(i, buf.count, buf.type, false, buf.stride, buf.offset);
GL.EnableVertexAttribArray(i);
}
//Unbind
GL.BindVertexArray(0);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
for (int i = 0; i < 7; i++)
{
GL.DisableVertexAttribArray(i);
}
return(vao);
}
//Fetch main VAO
public GLVao generateVAO(Mesh so)
{
//Generate VAO
GLVao vao = new GLVao();
vao.vao_id = GL.GenVertexArray();
GL.BindVertexArray(vao.vao_id);
//Generate VBOs
int[] vbo_buffers = new int[2];
GL.GenBuffers(2, vbo_buffers);
vao.vertex_buffer_object = vbo_buffers[0];
vao.element_buffer_object = vbo_buffers[1];
//Bind vertex buffer
int size;
GL.BindBuffer(BufferTarget.ArrayBuffer, vao.vertex_buffer_object);
//Upload Vertex Buffer
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)meshMetaDataDict[so.metaData.Hash].vs_size,
meshDataDict[so.metaData.Hash].vs_buffer, BufferUsageHint.StaticDraw);
GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize,
out size);
if (size != vx_size * (so.metaData.vertrend_graphics + 1))
{
//throw new ApplicationException(String.Format("Problem with vertex buffer"));
Util.showError("Mesh metadata does not match the vertex buffer size from the geometry file", "Error");
}
Common.RenderStats.vertNum += so.metaData.vertrend_graphics + 1; //Accumulate settings
//Assign VertexAttribPointers
for (int i = 0; i < 7; i++)
{
if (bufInfo[i] == null)
{
continue;
}
bufInfo buf = bufInfo[i];
GL.VertexAttribPointer(i, buf.count, buf.type, buf.normalize, vx_size, buf.offset);
GL.EnableVertexAttribArray(i);
}
//Upload index buffer
GL.BindBuffer(BufferTarget.ElementArrayBuffer, vao.element_buffer_object);
GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)meshMetaDataDict[so.metaData.Hash].is_size,
meshDataDict[so.metaData.Hash].is_buffer, BufferUsageHint.StaticDraw);
GL.GetBufferParameter(BufferTarget.ElementArrayBuffer, BufferParameterName.BufferSize,
out size);
if (size != meshMetaDataDict[so.metaData.Hash].is_size)
{
Util.showError("Mesh metadata does not match the index buffer size from the geometry file", "Error");
//throw new ApplicationException(String.Format("Problem with vertex buffer"));
}
RenderStats.trisNum += (int)(so.metaData.batchcount / 3); //Accumulate settings
//Unbind
GL.BindVertexArray(0);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
for (int i = 0; i < 7; i++)
{
GL.DisableVertexAttribArray(i);
}
return(vao);
}
