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unit V3DSceneShadows;
{$I v3dsceneconf.inc}
interface
uses CastleWindow, CastleScene, CastleTransform, CastleVectors, CastleViewport,
CastleRenderOptions;
{ Compile also with CGE branches that don't yet have new-cameras work merged.
Once new-cameras merged -> master, we can remove this. }
{$if not declared(TCastleAutoNavigationViewport)}
{$define TCastleAutoNavigationViewport:=TCastleViewport}
{$endif}
type
{ Takes care of setting shadow volume properties, and modifies a little
shadow volume rendering to work nicely with all view3dscene
configurations (bump mapping, fill modes etc.) }
TV3DShadowsViewport = class(TCastleAutoNavigationViewport)
protected
procedure RenderOnePass(const Params: TRenderParams); override;
end;
var
ShadowVolumes: boolean = true;
ShadowVolumesRender: boolean = false;
procedure ViewportShadowsProperties(Viewport: TCastleViewport);
implementation
uses SysUtils, CastleConfig, CastleGLUtils, V3DSceneFillMode;
procedure ViewportShadowsProperties(Viewport: TCastleViewport);
begin
Viewport.ShadowVolumes := ShadowVolumes;
Viewport.ShadowVolumesRender := ShadowVolumesRender;
end;
procedure TV3DShadowsViewport.RenderOnePass(const Params: TRenderParams);
procedure RenderOnePassShadowsBegin(Scene: TCastleScene);
begin
{ Thanks to using SolidShadowColor, shadow is visible
even when rmSolidColor is used }
Scene.RenderOptions.SolidColor := SolidShadowColor;
end;
procedure RenderOnePassNoShadowsBegin(Scene: TCastleScene);
begin
Scene.RenderOptions.SolidColor := SolidColor;
end;
begin
if Params.InShadow then
begin
RenderOnePassShadowsBegin(Items.MainScene);
inherited;
end else
begin
RenderOnePassNoShadowsBegin(Items.MainScene);
inherited;
end;
end;
end.
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