public void DrawEntityShadowVolume(DynamicLight Light, ShaderMaterial ShadowVolume)
{
RenderAPI.DbgPushGroup("Entity DrawShadowVolume");
for (int i = 0; i < Entities.Length; i++)
{
Entities[i].DrawShadowVolume(Light.GetBoundingSphere(), ShadowVolume);
}
RenderAPI.DbgPopGroup();
}
public void DrawShadowVolume(ShaderMaterial ShadowVolume)
{
RenderAPI.DbgPushGroup("Map DrawShadowVolume");
for (int ModelIdx = 0; ModelIdx < MapModels.Length; ModelIdx++)
{
MapModels[ModelIdx].DrawShadowVolume(ShadowVolume);
}
RenderAPI.DbgPopGroup();
}
public virtual void DrawViewModel()
{
RenderAPI.DbgPushGroup("Player DrawViewModel");
ViewModelCamera.Position = Camera.Position;
ViewModelCamera.Rotation = Camera.Rotation;
Camera OldCam = ShaderUniforms.Current.Camera;
ShaderUniforms.Current.Camera = ViewModelCamera;
CurrentWeapon?.DrawViewModel(this);
ShaderUniforms.Current.Camera = OldCam;
RenderAPI.DbgPopGroup();
}
public void DrawTransparent()
{
RenderAPI.DbgPushGroup("Map DrawTransparent");
for (int ModelIdx = 0; ModelIdx < MapModels.Length; ModelIdx++)
{
MapModels[ModelIdx].DrawTransparent();
}
RenderAPI.DbgPopGroup();
RenderAPI.DbgPushGroup("Entity DrawTransparent");
for (int EntityIdx = 0; EntityIdx < Entities.Length; EntityIdx++)
{
Entities[EntityIdx]?.DrawTransparent();
}
RenderAPI.DbgPopGroup();
}
public override void DrawMesh(Mesh3D Mesh)
{
RenderAPI.DbgPushGroup("Fog DrawMesh");
RenderAPI.DbgPushGroup("Depth capture");
DepthCapture.Push();
{
Gfx.Clear(Color.Transparent);
RenderState RS = Gfx.PeekRenderState();
RS.EnableBlend = true;
RS.BlendFunc(BlendFactor.One, BlendFactor.One);
RS.EnableDepthTest = false;
RS.EnableCullFace = true;
RS.CullFace = CullFace.Back;
RS.SetColorMask(true, true, false, false);
DepthThicknessShader.Bind(ShaderUniforms.Current);
// First pass
RenderAPI.DbgPushGroup("Draw front face");
Gfx.PushRenderState(RS);
{
DepthThicknessShader.Uniform1f("Scale", 1.0f);
Mesh.Draw();
}
Gfx.PopRenderState();
RenderAPI.DbgPopGroup();
// Second pass
RS.CullFace = CullFace.Front;
RS.SetColorMask(true, false, false, false);
RenderAPI.DbgPushGroup("Draw back face");
Gfx.PushRenderState(RS);
{
DepthThicknessShader.Uniform1f("Scale", -1.0f);
Mesh.Draw();
}
Gfx.PopRenderState();
RenderAPI.DbgPopGroup();
DepthThicknessShader.Unbind();
}
DepthCapture.Pop();
RenderAPI.DbgPopGroup();
RenderAPI.DbgPushGroup("Fog render");
FogShader.Bind(ShaderUniforms.Current);
ThicknessTex.BindTextureUnit();
// Final pass
{
/*// Depth sort to make sure fragment shader executes only once
* RenderState RS = Gfx.PeekRenderState();
* RS.SetColorMask(false);
* RS.EnableDepthMask = true;
* Gfx.PushRenderState(RS);
* Mesh.Draw();
* Gfx.PopRenderState();
*
* // Actual shading
* RS.SetColorMask(true);
* RS.EnableDepthMask = false;
* RS.DepthFunc = DepthFunc.Equal;
* Gfx.PushRenderState(RS);
* Mesh.Draw();
* Gfx.PopRenderState();*/
EngineRenderer.BeginDrawStencilMask(StencilMaskMode.AnyFaceDepthTested);
Mesh.Draw();
EngineRenderer.EndDrawStencilMask();
EngineRenderer.BeginUseStencilMask(StencilFunction.Equal, 0xFF, 0xFF, false);
Mesh.Draw();
EngineRenderer.EndUseStencilMask();
}
ThicknessTex.UnbindTextureUnit();
FogShader.Unbind();
RenderAPI.DbgPopGroup();
RenderAPI.DbgPopGroup();
}
public static void EndUseStencilMask()
{
Gfx.PopRenderState();
RenderAPI.DbgPopGroup();
}
public static void Draw(float Dt, bool AmbientLighting = true, bool PointLighting = true)
{
RenderDoc.StartFrame();
Engine.GetTexture("skybox").BindTextureUnit(10);
DbgDraw.Enabled = Engine.DebugDraw;
ShaderUniforms.Current.Resolution = Engine.Window.WindowSize;
// Deferred opaque pass
RenderAPI.DbgPushGroup("Deferred opaque pass");
Engine.GBuffer.Push();
{
RenderState RS = Gfx.PeekRenderState();
RS.EnableBlend = false;
Gfx.PushRenderState(RS);
Gfx.Clear(Color.Transparent);
ShaderUniforms.Current.Camera = Engine.Camera3D;
Engine.Map?.DrawOpaque();
Engine.Game.DrawOpaque();
Gfx.PopRenderState();
}
Engine.GBuffer.Pop();
RenderAPI.DbgPopGroup();
// Lighting/transparency pass
RenderAPI.DbgPushGroup("Lighting/transparency pass");
Engine.ScreenRT.Push();
{
// Clear canvas, copy depth buffer, draw skybox
RenderAPI.DbgMessage("Lighting/transparency pass");
Gfx.Clear(Color.Black);
Engine.GBuffer.Framebuffer.Blit(false, true, false, Destination: Engine.ScreenRT.Framebuffer);
Engine.Map?.DrawSkybox();
Engine.GBuffer.Color.BindTextureUnit(0);
Engine.GBuffer.Position.BindTextureUnit(1);
Engine.GBuffer.Normal.BindTextureUnit(2);
Engine.GBuffer.DepthStencil.BindTextureUnit(3);
{
RenderState State = Gfx.PeekRenderState();
State.FrontFace = FrontFace.CounterClockwise;
State.EnableBlend = true;
State.BlendFunc_Src = BlendFactor.SrcAlpha;
State.BlendFunc_Dst = BlendFactor.One;
State.EnableDepthTest = false;
Gfx.PushRenderState(State);
ShaderUniforms.Current.Camera = Engine.Camera2D;
if (AmbientLighting)
{
RenderAPI.DbgPushGroup("Deferred ambient");
// Ambient lighting
ShaderProgram AmbientShader = Engine.GetShader("deferred_ambient");
AmbientShader.Bind(ShaderUniforms.Current);
Engine.ScreenQuad.Draw();
AmbientShader.Unbind();
RenderAPI.DbgPopGroup();
}
// Point lighting
Gfx.PopRenderState();
State.FrontFace = FrontFace.CounterClockwise;
State.EnableDepthMask = false;
State.EnableDepthTest = true;
State.EnableStencilTest = true;
Gfx.PushRenderState(State);
ShaderUniforms.Current.Camera = Engine.Camera3D;
if (Engine.Map != null && PointLighting)
{
DynamicLight[] Lights = Engine.Map.GetLights();
RenderAPI.DbgPushGroup("Point lighting");
for (int i = 0; i < Lights.Length; i++)
{
DbgDraw.DrawCross(Lights[i].Position);
State.SetColorMask(false);
State.EnableBlend = false;
State.EnableDepthTest = true;
State.EnableCullFace = false;
State.StencilFunc(StencilFunction.Always, 0, 0);
State.StencilOpSeparate(StencilFace.Front, StencilOperation.Keep, StencilOperation.IncrWrap, StencilOperation.Keep);
State.StencilOpSeparate(StencilFace.Back, StencilOperation.Keep, StencilOperation.DecrWrap, StencilOperation.Keep);
State.DepthFunc = DepthFunc.LessOrEqual;
Gfx.PushRenderState(State);
Gfx.ClearStencil();
DrawPointLightMask(Lights[i]);
DrawPointLightShadow(Lights[i]);
Gfx.PopRenderState();
State.EnableBlend = true;
State.SetColorMask(true);
State.EnableDepthTest = false;
State.EnableCullFace = true;
State.StencilFunc(StencilFunction.Equal, 1, 0xFF);
State.StencilOp(StencilOperation.Keep, StencilOperation.Keep, StencilOperation.Keep);
Gfx.PushRenderState(State);
ShadePointLight(Lights[i]);
Gfx.PopRenderState();
}
RenderAPI.DbgPopGroup();
}
Gfx.PopRenderState();
}
Engine.GBuffer.DepthStencil.UnbindTextureUnit(3);
Engine.GBuffer.Normal.UnbindTextureUnit(2);
Engine.GBuffer.Position.UnbindTextureUnit(1);
Engine.GBuffer.Color.UnbindTextureUnit(0);
// Draw transparent items
RenderAPI.DbgPushGroup("Transparent items");
Engine.Map?.DrawTransparent();
Engine.Game.DrawTransparent();
RenderAPI.DbgPopGroup();
// Draw debug lines
DbgDraw.FinalizeDraw((long)(Engine.Time * 1000));
}
Engine.ScreenRT.Pop();
RenderAPI.DbgPopGroup();
RenderAPI.DbgPushGroup("2D pass");
{
RenderState State = Gfx.PeekRenderState();
State.EnableDepthTest = false;
Gfx.PushRenderState(State);
{
Gfx.Clear();
ShaderUniforms.Current.Camera = Engine.Camera2D;
ShaderUniforms.Current.TextureSize = Engine.ScreenRT.Color.Size;
ShaderUniforms.Current.MultisampleCount = Engine.ScreenRT.Color.Multisamples;
Gfx.TexturedRectangle(0, 0, Engine.Window.WindowWidth, Engine.Window.WindowHeight, Texture: Engine.ScreenRT.Color, Shader: Engine.GetShader("framebuffer"));
Engine.GUI.Draw(() => {
float FT = Engine.FrameTime.Average();
float FPS = 1.0f / FT;
string DebugString = string.Format("{0} ms\n{1} FPS\n{2} Lights", FT, FPS, Engine.Map.GetLights().Length);
int Lines = 3;
Gfx.DrawText(Engine.UI.DebugFont, new Vector2(2, Engine.WindowHeight - Engine.UI.DebugFont.ScaledLineHeight * Lines - 2), DebugString, Color.White);
Engine.UI.Draw();
Engine.Game.DrawGUI(Dt);
});
}
Gfx.PopRenderState();
}
RenderAPI.DbgPopGroup();
Engine.Window.SwapBuffers();
RenderDoc.EndFrame();
}
