private void Draw()
{
if (!renderTargetDrawn)
{
renderTexture.Use();
renderTexture.Clear(Color4.Gray);
vab.Bind();
vao.Bind();
pipeline.Bind();
worldMatrix.Matrix = renderTexture.WorldMatrix;
worldMatrix.Set(pipeline);
vab.DrawDirect(3);
var imageData = renderTexture.Framebuffer.Read(800, 600);
var image = Image.LoadPixelData <Rgba32>(imageData, 800, 600);
image.Save("Screenshot.png");
renderTargetDrawn = true;
var sprite = SpriteDrawer.Draw(renderTexture, 0f, 0f);
spriteRenderer.SetRenderItems(new SpriteRenderItem[] { sprite });
spriteRenderer.RenderToData((data, count, tex) =>
{
spriteDisplayList.SetVertices(data);
spriteDisplayList.SetIndices(SpriteRenderer.GetIndices(1));
resourceSet.Texture = tex;
});
}
defaultFramebuffer.Bind();
normal.Set();
rotation += 0.001f;
spriteDisplayList.Draw(resourceSet);
}
protected void Draw()
{
worldMatrix.Matrix = Matrix4x4.CreateOrthographic(2.0f, 2.0f, -1.0f, +1.0f);
pipeline.Bind();
worldMatrix.Set(pipeline);
buffer.Bind();
indexBuffer.Bind();
vao.Bind();
texture.Set(pipeline);
indexBuffer.DrawIndexed(buffer, 6);
}
private void Setup()
{
pipeline = new ShaderPipeline(DefaultShader.FromType(typeof(VertexPositionColor), ShaderType.Vertex), DefaultShader.FromType(typeof(VertexPositionColor), ShaderType.Fragment));
vab = new VertexArrayBuffer <VertexPositionColor>(VertexPositionColor.Size, OpenGL.BufferUsage.StaticDraw);
vao = new VertexArrayObject <VertexPositionColor>(vab, pipeline, DefaultVertexDefinition.FromType(typeof(VertexPositionColor)));
renderTexture = new RenderTexture(400, 400);
vab.Bind();
vao.Bind();
pipeline.Bind();
vab.CopyData(vertices);
worldMatrix = new Matrix4fUniform(DefaultShader.MVP_UNIFORM_NAME);
pipeline.Unbind();
vao.Unbind();
vab.Unbind();
spriteRenderer = new SpriteRenderer();
defaultFramebuffer = Framebuffer.GetDefault();
spriteDisplayList = new DynamicDisplayList <VertexPositionColorTexture>(VertexPositionColorTexture.Size);
resourceSet = new TextureResourceSet(window);
}