forked from Mirrorlandia_minetest/irrlicht
2928a632a4
This breaks compiling. To have old values replace false with EZW_OFF and true with EWZ_AUTO. There's a bit history to this change. ZWriteFineControl got introduced after 1.8 so it was never in a released version. Basically it was needed after some changes had been made to allow shaders to have zwrite enabled independent of the material-type (which worked badly for shaders). This had caused other problems as it was then enabled too often instead. So to quickly fix those bugs and avoid breaking compatibility I had introduced a new enum ZWriteFineControl in SMaterial. This worked and didn't break compiling - but I noticed by now that introducing a second flag for this made maintainance for an already very hard to understand problem (figuring out the implementation of transparency and zwriting) even more complicated. So to keep maintance somewhat sane I decided to break compiling now and merge those two flags. The behavior should not be affected by this commit - except for users which set this flag already in their code and have to switch to the enum now. Serialization is switched on loading old files (so SMaterial has enum already and writes that out). git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6026 dfc29bdd-3216-0410-991c-e03cc46cb475
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __C_OPENGL_SHADER_MATERIAL_RENDERER_H_INCLUDED__
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#define __C_OPENGL_SHADER_MATERIAL_RENDERER_H_INCLUDED__
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#include "IrrCompileConfig.h"
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#ifdef _IRR_COMPILE_WITH_OPENGL_
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#include "IMaterialRenderer.h"
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#include "COpenGLCommon.h"
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namespace irr
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{
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namespace video
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{
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class COpenGLDriver;
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class IShaderConstantSetCallBack;
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//! Class for using vertex and pixel shaders with OpenGL
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class COpenGLShaderMaterialRenderer : public IMaterialRenderer
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{
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public:
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//! Constructor
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COpenGLShaderMaterialRenderer(COpenGLDriver* driver,
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s32& outMaterialTypeNr, const c8* vertexShaderProgram, const c8* pixelShaderProgram,
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IShaderConstantSetCallBack* callback, E_MATERIAL_TYPE baseMaterial, s32 userData);
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//! Destructor
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virtual ~COpenGLShaderMaterialRenderer();
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virtual void OnSetMaterial(const SMaterial& material, const SMaterial& lastMaterial,
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bool resetAllRenderstates, IMaterialRendererServices* services) _IRR_OVERRIDE_;
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virtual bool OnRender(IMaterialRendererServices* service, E_VERTEX_TYPE vtxtype) _IRR_OVERRIDE_;
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virtual void OnUnsetMaterial() _IRR_OVERRIDE_;
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//! Returns if the material is transparent.
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virtual bool isTransparent() const _IRR_OVERRIDE_;
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//! Access the callback provided by the users when creating shader materials
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virtual IShaderConstantSetCallBack* getShaderConstantSetCallBack() const _IRR_OVERRIDE_
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{
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return CallBack;
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}
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protected:
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//! constructor only for use by derived classes who want to
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//! create a fall back material for example.
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COpenGLShaderMaterialRenderer(COpenGLDriver* driver,
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IShaderConstantSetCallBack* callback,
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E_MATERIAL_TYPE baseMaterial, s32 userData=0);
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// must not be called more than once!
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void init(s32& outMaterialTypeNr, const c8* vertexShaderProgram,
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const c8* pixelShaderProgram, E_VERTEX_TYPE type);
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bool createPixelShader(const c8* pxsh);
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bool createVertexShader(const c8* vtxsh);
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bool checkError(const irr::c8* type);
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COpenGLDriver* Driver;
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IShaderConstantSetCallBack* CallBack;
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// I didn't write this, but here's my understanding:
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// Those flags seem to be exclusive so far (so could be an enum).
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// Maybe the idea was to make them non-exclusive in future (basically having a shader-material)
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// Actually currently there's not even any need to cache them (probably even slower than not doing so).
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// They seem to be mostly for downward compatibility.
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// I suppose the idea is to use SMaterial.BlendOperation + SMaterial.BlendFactor and a simple non-transparent type as base for more flexibility in the future.
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// Note that SMaterial.BlendOperation + SMaterial.BlendFactor are in some drivers already evaluated before OnSetMaterial.
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bool Alpha;
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bool Blending;
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bool FixedBlending;
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bool AlphaTest;
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GLuint VertexShader;
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// We have 4 values here, [0] is the non-fog version, the other three are
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// ARB_fog_linear, ARB_fog_exp, and ARB_fog_exp2 in that order
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core::array<GLuint> PixelShader;
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s32 UserData;
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};
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} // end namespace video
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} // end namespace irr
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#endif
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#endif
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