protected RenderPipeline(IRenderable renderable, ACamera camera)
{
Renderable = renderable;
Camera = camera;
if (_uniformBuffer != null)
{
return;
}
_uniformBuffer = new GLUniformBuffer(Marshal.SizeOf <Matrix4>() * 2, 0);
_uniformBuffer.GpuAllocateDeferred();
}
private unsafe void CreateMiscGLObjects()
{
// Quad drawing.
{
Span <Vertex2D> quadVertices = stackalloc[]
{
new Vertex2D(1, 0, 1, 1),
new Vertex2D(0, 0, 0, 1),
new Vertex2D(1, 1, 1, 0),
new Vertex2D(0, 1, 0, 0)
};
QuadVBO = new GLBuffer <Vertex2D>(this, BufferTarget.ArrayBuffer, BufferUsageHint.StaticDraw,
quadVertices,
nameof(QuadVBO));
QuadVAO = MakeQuadVao();
CheckGlError();
}
// Window VBO
{
Span <Vertex2D> winVertices = stackalloc[]
{
new Vertex2D(-1, 1, 0, 1),
new Vertex2D(-1, -1, 0, 0),
new Vertex2D(1, 1, 1, 1),
new Vertex2D(1, -1, 1, 0),
};
WindowVBO = new GLBuffer <Vertex2D>(
this,
BufferTarget.ArrayBuffer,
BufferUsageHint.StaticDraw,
winVertices,
nameof(WindowVBO));
CheckGlError();
}
// Batch rendering
{
BatchVBO = new GLBuffer(this, BufferTarget.ArrayBuffer, BufferUsageHint.DynamicDraw,
Vertex2D.SizeOf * BatchVertexData.Length, nameof(BatchVBO));
BatchVAO = new GLHandle(GenVertexArray());
BindVertexArray(BatchVAO.Handle);
ObjectLabelMaybe(ObjectLabelIdentifier.VertexArray, BatchVAO, nameof(BatchVAO));
// Vertex Coords
GL.VertexAttribPointer(0, 2, VertexAttribPointerType.Float, false, Vertex2D.SizeOf, 0);
GL.EnableVertexAttribArray(0);
// Texture Coords.
GL.VertexAttribPointer(1, 2, VertexAttribPointerType.Float, false, Vertex2D.SizeOf, 2 * sizeof(float));
GL.EnableVertexAttribArray(1);
CheckGlError();
BatchEBO = new GLBuffer(this, BufferTarget.ElementArrayBuffer, BufferUsageHint.DynamicDraw,
sizeof(ushort) * BatchIndexData.Length, nameof(BatchEBO));
}
ProjViewUBO = new GLUniformBuffer <ProjViewMatrices>(this, BindingIndexProjView, nameof(ProjViewUBO));
UniformConstantsUBO = new GLUniformBuffer <UniformConstants>(this, BindingIndexUniformConstants, nameof(UniformConstantsUBO));
screenBufferHandle = new GLHandle(GL.GenTexture());
GL.BindTexture(TextureTarget.Texture2D, screenBufferHandle.Handle);
ApplySampleParameters(TextureSampleParameters.Default);
ScreenBufferTexture = GenTexture(screenBufferHandle, _windowing !.MainWindow !.FramebufferSize, true, null, TexturePixelType.Rgba32);
}
