public void Draw(ITexture2D resolvedTexture, Color4 color)
{
var prevShader = glContext.Bindings.Program.Get();
var prevVao = glContext.Bindings.VertexArray.Get();
var prevUb = glContext.Bindings.Buffers.UniformIndexed[0].Get();
var prevDepthMask = glContext.States.DepthStencil.DepthMask.Get();
var prevDepthTestEnable = glContext.States.DepthStencil.DepthTestEnable.Get();
var prevCullFaceEnable = glContext.States.Rasterizer.CullFaceEnable.Get();
glContext.Bindings.Program.Set(program);
glContext.Bindings.VertexArray.Set(vao);
glContext.States.DepthStencil.DepthMask.Set(false);
glContext.States.DepthStencil.DepthTestEnable.Set(false);
glContext.States.Rasterizer.CullFaceEnable.Set(false);
glContext.Bindings.Textures.ActiveUnit.Set(0);
glContext.Bindings.Textures.Units[0].Set(resolvedTexture);
paramsUb.SetData(color);
paramsUb.Bind(glContext, 0);
glContext.Actions.Draw.Arrays(BeginMode.TriangleStrip, 0, 4);
glContext.States.DepthStencil.DepthMask.Set(prevDepthMask);
glContext.States.DepthStencil.DepthTestEnable.Set(prevDepthTestEnable);
glContext.States.Rasterizer.CullFaceEnable.Set(prevCullFaceEnable);
glContext.Bindings.Program.Set(prevShader);
glContext.Bindings.VertexArray.Set(prevVao);
glContext.Bindings.Buffers.UniformIndexed[0].Set(prevUb);
}
public void Draw(ITextureCubemap gltextureCubemap, CameraFrame cameraFrame, float fieldOfView, float aspectRatio)
{
glContext.States.DepthStencil.DepthTestEnable.Set(false);
glContext.States.DepthStencil.DepthMask.Set(false);
// todo: to ObjectGL
glContext.GL.Enable((int)All.TextureCubeMapSeamless);
glContext.Bindings.Program.Set(shaderProgram);
glContext.Bindings.VertexArray.Set(vao);
var simplifiedViewFrame = new CameraFrame(Vector3.Zero, cameraFrame.Forward, cameraFrame.Up, cameraFrame.Right);
var viewMat = simplifiedViewFrame.GetViewMat();
var projMat = Matrix4x4.PerspectiveFovDx(fieldOfView, aspectRatio, 0.1f, 100f);
cameraUb.SetData(viewMat * projMat);
cameraUb.Bind(glContext, 0);
glContext.Bindings.Textures.ActiveUnit.Set(0);
glContext.Bindings.Textures.Units[0].Set(gltextureCubemap);
glContext.Bindings.Samplers[0].Set(sampler);
glContext.States.Rasterizer.CullFaceEnable.Set(false);
glContext.Actions.Draw.Elements(BeginMode.Triangles, 36, DrawElementsType.UnsignedInt, 0);
}
public void Draw(Color4 color4)
{
glContext.Bindings.Program.Set(shaderProgram);
glContext.Bindings.VertexArray.Set(vao);
glContext.States.DepthStencil.DepthTestEnable.Set(false);
glContext.States.Blend.BlendEnable.Set(true);
glContext.States.Blend.United.Equation.Set(BlendMode.Add);
glContext.States.Blend.United.Function.Set(BlendFactor.SrcAlpha, BlendFactor.OneMinusSrcAlpha);
colorUb.SetData(color4);
colorUb.Bind(glContext, 0);
glContext.Actions.Draw.Arrays(BeginMode.TriangleStrip, 0, 4);
glContext.States.Blend.BlendEnable.Set(false);
glContext.States.DepthStencil.DepthTestEnable.Set(true);
}