d11a5bbef2
Realtime modifiers applied on mesh objects will be supported in the game engine with the following limitations: - Only real time modifiers are supported (basically all of them!) - Virtual modifiers resulting from parenting are not supported: armature, curve, lattice. You can still use these modifiers (armature is really not recommended) but in non parent mode. The BGE has it's own parenting capability for armature. - Modifiers are computed on the host (using blender modifier stack). - Modifiers are statically evaluated: any possible time dependency in the modifiers is not supported (don't know enough about modifiers to be more specific). - Modifiers are reevaluated if the underlying mesh is deformed due to shape action or armature action. Beware that this is very CPU intensive; modifiers should really be used for static objects only. - Physics is still based on the original mesh: if you have a mirror modifier, the physic shape will be limited to one half of the resulting object. Therefore, the modifiers should preferably be used on graphic objects. - Scripts have no access to the modified mesh. - Modifiers that are based on objects interaction (boolean,..) will not be dependent on the objects position in the GE. What you see in the 3D view is what you get in the GE regardless on the object position, velocity, etc. Besides that, the feature is compatible with all the BGE features that affect meshes: armature action, shape action, relace mesh, VideoTexture, add object, dupligroup. Known problems: - This feature is a bit hacky: the BGE uses the derived mesh draw functions to display the object. This drawing method is a bit slow and is not 100% compatible with the BGE. There may be some problems in multi-texture mode: the multi-texture coordinates are not sent to the GPU. Texface and GLSL on the other hand should be fully supported. - Culling is still based on the extend of the original mesh. If you have a modifer that extends the size of the mesh, the object may disappear while still in the view frustrum. - Derived mesh is not shared between replicas. The derived mesh is allocated and computed for each object with modifiers, regardless if they are static replicas. - Display list are not created on objects with modifiers. I should be able to fix the above problems before release. However, the feature is already useful for game development. Once you are ready to release the game, you can apply the modifiers to get back display list support and mesh sharing capability. MSVC, scons, Cmake, makefile updated. Enjoy /benoit
180 lines
3.1 KiB
C++
180 lines
3.1 KiB
C++
#ifndef __BL_MATERIAL_H__
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#define __BL_MATERIAL_H__
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#include "STR_String.h"
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#include "MT_Point2.h"
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// --
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struct MTex;
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struct Material;
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struct Image;
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struct MTFace;
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struct MTex;
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struct Material;
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struct EnvMap;
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// --
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/** max units
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this will default to users available units
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to build with more available, just increment this value
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although the more you add the slower the search time will be.
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we will go for eight, which should be enough
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*/
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#define MAXTEX 8 //match in RAS_TexVert & RAS_OpenGLRasterizer
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// different mapping modes
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class BL_Mapping
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{
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public:
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int mapping;
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float scale[3];
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float offsets[3];
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int projplane[3];
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STR_String objconame;
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STR_String uvCoName;
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};
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// base material struct
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class BL_Material
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{
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private:
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int num_users;
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bool share;
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public:
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// -----------------------------------
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BL_Material();
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int IdMode;
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unsigned int ras_mode;
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bool glslmat;
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STR_String texname[MAXTEX];
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unsigned int flag[MAXTEX];
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int tile,tilexrep[MAXTEX],tileyrep[MAXTEX];
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STR_String matname;
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STR_String mtexname[MAXTEX];
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int materialindex;
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float matcolor[4];
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float speccolor[3];
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short transp, pad;
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float hard, spec_f;
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float alpha, emit, color_blend[MAXTEX], ref;
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float amb;
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int blend_mode[MAXTEX];
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int mode;
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int num_enabled;
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BL_Mapping mapping[MAXTEX];
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STR_String imageId[MAXTEX];
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Material* material;
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MTFace* tface;
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Image* img[MAXTEX];
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EnvMap* cubemap[MAXTEX];
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unsigned int rgb[4];
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MT_Point2 uv[4];
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MT_Point2 uv2[4];
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STR_String uvName;
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STR_String uv2Name;
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void SetConversionRGB(unsigned int *rgb);
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void GetConversionRGB(unsigned int *rgb);
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void SetConversionUV(const STR_String& name, MT_Point2 *uv);
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void GetConversionUV(MT_Point2 *uv);
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void SetConversionUV2(const STR_String& name, MT_Point2 *uv);
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void GetConversionUV2(MT_Point2 *uv);
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void SetSharedMaterial(bool v);
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bool IsShared();
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void SetUsers(int num);
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};
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// BL_Material::IdMode
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enum BL_IdMode {
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DEFAULT_BLENDER=-1,
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TEXFACE,
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ONETEX,
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TWOTEX,
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GREATERTHAN2
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};
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// BL_Material::blend_mode[index]
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enum BL_BlendMode
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{
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BLEND_MIX=1,
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BLEND_ADD,
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BLEND_SUB,
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BLEND_MUL,
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BLEND_SCR
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};
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// -------------------------------------
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// BL_Material::flag[index]
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enum BL_flag
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{
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MIPMAP=1, // set to use mipmaps
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CALCALPHA=2, // additive
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USEALPHA=4, // use actual alpha channel
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TEXALPHA=8, // use alpha combiner functions
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TEXNEG=16, // negate blending
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HASIPO=32,
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USENEGALPHA=64
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};
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// BL_Material::ras_mode
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enum BL_ras_mode
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{
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POLY_VIS=1,
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COLLIDER=2,
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ZSORT=4,
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ALPHA=8,
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// TRIANGLE=16,
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USE_LIGHT=32,
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WIRE=64
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};
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// -------------------------------------
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// BL_Material::mapping[index]::mapping
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enum BL_MappingFlag
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{
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USEENV =1,
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// --
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USEREFL =2,
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USEOBJ =4,
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USENORM =8,
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USEORCO =16,
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USEUV =32,
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USETANG =64,
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DISABLE =128,
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USECUSTOMUV=256
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};
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// BL_Material::BL_Mapping::projplane
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enum BL_MappingProj
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{
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PROJN=0,
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PROJX,
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PROJY,
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PROJZ
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};
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// ------------------------------------
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//extern void initBL_Material(BL_Material* mat);
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extern MTex* getImageFromMaterial(Material *mat, int index);
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extern int getNumTexChannels( Material *mat );
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// ------------------------------------
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#endif
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