forked from bartvdbraak/blender
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
145 lines
3.3 KiB
C++
145 lines
3.3 KiB
C++
#ifndef __KX_BLENDER_MATERIAL_H__
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#define __KX_BLENDER_MATERIAL_H__
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#include <vector>
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#include "RAS_IPolygonMaterial.h"
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#include "BL_Material.h"
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#include "BL_Texture.h"
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#include "BL_Shader.h"
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#include "BL_BlenderShader.h"
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#include "PyObjectPlus.h"
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#include "MT_Vector3.h"
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#include "MT_Vector4.h"
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struct MTFace;
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class KX_Scene;
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class KX_BlenderMaterial : public PyObjectPlus, public RAS_IPolyMaterial
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{
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Py_Header;
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public:
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// --------------------------------
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KX_BlenderMaterial(
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class KX_Scene* scene,
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BL_Material* mat,
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bool skin,
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int lightlayer,
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PyTypeObject* T=&Type
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);
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virtual ~KX_BlenderMaterial();
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// --------------------------------
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virtual TCachingInfo GetCachingInfo(void) const {
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return (void*) this;
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}
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virtual
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bool Activate(
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RAS_IRasterizer* rasty,
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TCachingInfo& cachingInfo
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) const;
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virtual
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void ActivateMeshSlot(
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const RAS_MeshSlot & ms,
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RAS_IRasterizer* rasty
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) const;
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void ActivateMat(
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RAS_IRasterizer* rasty,
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TCachingInfo& cachingInfo
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)const;
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void ActivatShaders(
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RAS_IRasterizer* rasty,
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TCachingInfo& cachingInfo
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)const;
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void ActivateBlenderShaders(
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RAS_IRasterizer* rasty,
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TCachingInfo& cachingInfo
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)const;
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MTFace* GetMTFace(void) const;
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unsigned int* GetMCol(void) const;
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BL_Texture * getTex (unsigned int idx) {
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return (idx < MAXTEX) ? mTextures + idx : NULL;
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}
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Image * getImage (unsigned int idx) {
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return (idx < MAXTEX && mMaterial) ? mMaterial->img[idx] : NULL;
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}
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// for ipos
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void UpdateIPO(
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MT_Vector4 rgba, MT_Vector3 specrgb,
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MT_Scalar hard, MT_Scalar spec,
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MT_Scalar ref, MT_Scalar emit, MT_Scalar alpha
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);
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// --------------------------------
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virtual PyObject* py_getattro(PyObject *attr);
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virtual PyObject* py_getattro_dict();
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virtual int py_setattro(PyObject *attr, PyObject *pyvalue);
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virtual PyObject* py_repr(void) { return PyString_FromString(mMaterial->matname.ReadPtr()); }
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KX_PYMETHOD_DOC( KX_BlenderMaterial, getShader );
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KX_PYMETHOD_DOC( KX_BlenderMaterial, getMaterialIndex );
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KX_PYMETHOD_DOC( KX_BlenderMaterial, getTexture );
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KX_PYMETHOD_DOC( KX_BlenderMaterial, setTexture );
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KX_PYMETHOD_DOC( KX_BlenderMaterial, setBlending );
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// --------------------------------
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// pre calculate to avoid pops/lag at startup
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virtual void OnConstruction( );
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static void EndFrame();
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private:
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BL_Material* mMaterial;
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BL_Shader* mShader;
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BL_BlenderShader* mBlenderShader;
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KX_Scene* mScene;
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BL_Texture mTextures[MAXTEX]; // texture array
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bool mUserDefBlend;
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unsigned int mBlendFunc[2];
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bool mModified;
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bool mConstructed; // if false, don't clean on exit
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void SetBlenderGLSLShader();
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void ActivatGLMaterials( RAS_IRasterizer* rasty )const;
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void ActivateTexGen( RAS_IRasterizer *ras ) const;
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bool UsesLighting(RAS_IRasterizer *rasty) const;
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void GetMaterialRGBAColor(unsigned char *rgba) const;
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Material* GetBlenderMaterial() const;
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Scene* GetBlenderScene() const;
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// message centers
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void setTexData( bool enable,RAS_IRasterizer *ras);
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void setBlenderShaderData( bool enable, RAS_IRasterizer *ras);
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void setShaderData( bool enable, RAS_IRasterizer *ras);
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void setObjectMatrixData(int i, RAS_IRasterizer *ras);
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void setTexMatrixData(int i);
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void setLightData();
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// cleanup stuff
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void OnExit();
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// shader chacing
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static BL_BlenderShader *mLastBlenderShader;
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static BL_Shader *mLastShader;
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mutable int mPass;
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};
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#endif
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