public void Render()
{
for (int i = 0; i < Shaders.Count; i++)
{
Shader shader = Shaders[i];
mesh.Use();
shader.Use();
shader.SetInt("sourceTexture", 0);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, framebuffer.GetTexture(FramebufferAttachment.ColorAttachment0));
shader.SetInt("sourceDepth", 1);
GL.ActiveTexture(TextureUnit.Texture1);
GL.BindTexture(TextureTarget.Texture2D, framebuffer.GetTexture(FramebufferAttachment.DepthAttachment));
if (i != 0)
{
shader.SetInt("lastStageTexture", 2);
GL.ActiveTexture(TextureUnit.Texture2);
GL.BindTexture(TextureTarget.Texture2D, stageReadFramebuffer.GetTexture(FramebufferAttachment.ColorAttachment0));
}
if (i != Shaders.Count - 1)
{
stageDrawFramebuffer.Begin();
GL.Clear(ClearBufferMask.ColorBufferBit);
}
GL.DrawElements(PrimitiveType.Triangles, mesh.IndicesCount, DrawElementsType.UnsignedInt, 0);
if (i != Shaders.Count - 1)
{
stageDrawFramebuffer.End();
}
{
Framebuffer temp = stageDrawFramebuffer;
stageDrawFramebuffer = stageReadFramebuffer;
stageReadFramebuffer = temp;
}
}
}
public void End()
{
framebuffer.End();
}
public override void Render()
{
if (Camera.Main == null)
{
return;
}
DataManager.CurrentScene.SceneRootEntities.ForEach(en => en.Transform.CalculateModelMatrixRecursively());
DataManager.EngineReservedEntities.ForEach(en => en.Transform.CalculateModelMatrixRecursively());
//shadow mapping
if (DirectionalLight.Main == null)
{
goto RenderOpaque;
}
Matrix4 lView;
Matrix4 lProjection;
DirectionalLight.Main.CalculateViewProjection(out lView, out lProjection, shadowMapSize, Camera.Main.BaseTransform.Position);
LightingGlobals.LightView = lView;
LightingGlobals.LightProjection = lProjection;
DataManager.CurrentScene.SceneRootEntities.ForEach(en => en.RecursivelyRenderShadowMap(LightingGlobals.LightView, LightingGlobals.LightProjection));
DataManager.EngineReservedEntities.ForEach(en => en.RecursivelyRenderShadowMap(LightingGlobals.LightView, LightingGlobals.LightProjection));
GL.Viewport(0, 0, shadowMapRes, shadowMapRes);
shadowMapFramebuffer.Begin();
GL.Clear(ClearBufferMask.DepthBufferBit);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.CullFace(CullFaceMode.Back);
GL.FrontFace(FrontFaceDirection.Ccw);
DrawDrawList(drawLists[DrawType.ShadowMap]);
shadowMapFramebuffer.End();
LightingGlobals.ShadowMap = shadowMapFramebuffer.GetTexture(FramebufferAttachment.DepthAttachment);
//render opaque
RenderOpaque:
Camera.Main.CalculateViewProjection(out Matrix4 view, out Matrix4 projection);
//call all render funcs
DataManager.CurrentScene.SceneRootEntities.ForEach(en => en.RecursivelyRender(view, projection));
DataManager.EngineReservedEntities.ForEach(en => en.RecursivelyRender(view, projection));
GL.Viewport(0, 0, ViewportSize.X, ViewportSize.Y);
postProcessor.Begin();
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.CullFace(CullFaceMode.Back);
GL.FrontFace(FrontFaceDirection.Ccw);
DrawDrawList(drawLists[DrawType.Opaque]);
//render transparent
GL.DepthMask(false);
GL.Disable(EnableCap.CullFace);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
DrawDrawList(drawLists[DrawType.Transparent]);
postProcessor.End();
//reset states
GL.DepthMask(true);
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
postProcessor.Render();
ClearDrawList();
}
