Getting data from SHADERLINK
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THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 13/05/2007 at 14:10, xxxxxxxx wrote:
User Information:
Cinema 4D Version: 10
Platform: Windows ;
Language(s) : C++ ;---------
Hi,
i can't find any tutorials about introduction about writing sdk plugins, and i have (propably) realy basics problems.I created a simple SHADERLINK in gui,
(like that: SHADERLINK MATERIAL_ALPHA_SHADER2 { } ), and i'm trying, and trying, and trying to read data and everything gone for nothing.example:
BaseDocument *doc;
BaseLink *tekstura;
BaseList2D *bl;// in InitRender
PluginShader *shader = NULL;
tekstura = data->GetBaseLink(MATERIAL_ALPHA_SHADER2);
if(tekstura!=NULL){
bl = tekstura->ForceGetLink(); // when i trying to use tekstura- >GetLink(doc);, the methon returns null
shader = bl->GetFirstShader(); // < --- here i always get null -- why??
PluginShader *ge = (PluginShader * )bl; // < -- is this correct?
}// in CalcSurface
if(tekstura!=NULL){
PluginShader *shader = NULL;
bl = tekstura->ForceGetLink();
shader = bl->GetFirstShader(); // always null
PluginShader *ge = (PluginShader * )bl;
Vector btm = ge->Sample((ChannelData * )vd); // always nullGePrint("Name: "+ge- >GetName()); // functions works fine, that's why i thing that at least some of this code is correct
I would be very gratefull for any help, or pice of good code.
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THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 19/05/2007 at 06:37, xxxxxxxx wrote:
Can somebody help me?
This is very important for me. -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 21/05/2007 at 01:45, xxxxxxxx wrote:
What are you trying to achieve, simply loading a shader in your own shader? Take a look at the Bitmapdistortion Shader in the SDK examples. It shows how to initialize and use a ShaderLink.
cheers,
Matthias -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 21/05/2007 at 23:45, xxxxxxxx wrote:
Hi,
What I'm trying to achieve is to load a shader in SHADERLINK, and use it as a color of object or as a bump texture - it doesn't matter.
Bitmapdistortion Shader inherit from ShaderData, my plugin inherts from MaterialData - that's why Bitmapdistortion Shader isn't very helpfull example.
i found this
but this is too all about ShaderData. -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 22/05/2007 at 02:08, xxxxxxxx wrote:
Here is a complete example for MaterialData plugin which loads a shader and uses it in CalcSurface
///////////////////////////////////////////////////////////// // CINEMA 4D SDK // ///////////////////////////////////////////////////////////// // (c) 1989-2004 MAXON Computer GmbH, all rights reserved // ///////////////////////////////////////////////////////////// // example for an easy implementation of a volume (surface) shader // It modifies the preview scenes and adds its own scene #include "c4d.h" #include "c4d_symbols.h" #include "msimplematerial.h" // be sure to use a unique ID obtained from www.plugincafe.com #define ID_SIMPLEMAT 1001164 class SimpleMaterial : public MaterialData { INSTANCEOF(SimpleMaterial,MaterialData) private: PluginShader *shader; public: virtual Bool Init (GeListNode *node); virtual void CalcSurface (PluginMaterial *mat, VolumeData *vd); virtual LONG InitRender(PluginMaterial *mat, InitRenderStruct *irs); virtual void FreeRender(PluginMaterial* mat); virtual Bool Message(GeListNode* node, LONG type, void* data); static NodeData *Alloc(void) { return gNew SimpleMaterial; } }; Bool SimpleMaterial::Init(GeListNode *node) { shader = NULL; BaseContainer *data=((PluginMaterial* )node)->GetDataInstance(); data->SetLink(SIMPLEMATERIAL_TEXTURE,NULL); return TRUE; } LONG SimpleMaterial::InitRender(PluginMaterial *mat, InitRenderStruct *irs) { BaseContainer *data=mat->GetDataInstance(); shader = (PluginShader* )data->GetLink(SIMPLEMATERIAL_TEXTURE,irs->doc,Xbase); if (shader) return shader->InitRender(irs); return LOAD_OK; } void SimpleMaterial::FreeRender(PluginMaterial *mat) { if (shader) shader->FreeRender(); shader=NULL; } void SimpleMaterial::CalcSurface(PluginMaterial *mat, VolumeData *vd) { if(shader) { ChannelData cd; cd.vd = vd; cd.d = 0; cd.n = vd->n; cd.off = 0; cd.p = vd->uvw; cd.scale = 0; cd.t = 0; cd.texflag = TEX_TILE; Vector col = shader->Sample(&cd;); vd->col = col; Multipass *buf = vd->multipass; if (!buf) return; // process multipass data *buf->vp_mat_color = col; } else { vd->col = 1.0; Multipass *buf = vd->multipass; if (!buf) return; // process multipass data *buf->vp_mat_color = 1.0; } } Bool SimpleMaterial::Message(GeListNode* node, LONG type, void* data) { BaseContainer *dat = ((PluginShader* )node)->GetDataInstance(); HandleInitialChannel(node,SIMPLEMATERIAL_TEXTURE,type,data); HandleShaderMessage(node,(PluginShader* )dat->GetLink(SIMPLEMATERIAL_TEXTURE,node->GetDocument(),Xbase),type,data); return TRUE; } Bool RegisterSimpleMaterial(void) { // decide by name if the plugin shall be registered - just for user convenience String name=GeLoadString(IDS_SIMPLEMATERIAL); if (!name.Content()) return TRUE; return RegisterMaterialPlugin(ID_SIMPLEMAT,name,0,SimpleMaterial::Alloc,"Msimplematerial",0); }here the description resource
CONTAINER Msimplematerial { NAME Msimplematerial; INCLUDE Mpreview; INCLUDE Mbase; GROUP ID_MATERIALPROPERTIES { SHADERLINK SIMPLEMATERIAL_TEXTURE { } } }also take a look a look at the material examples in the sdk
cheers,
Matthias -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 22/05/2007 at 02:44, xxxxxxxx wrote:
Thank you for help. I was looking sth like this example.
I have last question, only for sure.
there is no difrents between this
ChannelData cd;
cd.vd = vd;
cd.d = 0;
cd.n = vd->n;
cd.off = 0;
cd.p = vd->uvw;
cd.scale = 0;
cd.t = 0;
cd.texflag = TEX_TILE;
Vector col = shader->Sample(&cd;);and this:
ChannelData *cd = new ChannelData(vd);
Vector col = shader->Sample(cd);right?
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THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 22/05/2007 at 02:50, xxxxxxxx wrote:
Quote: there is no difrents between this
>
> * * *
>
>
> ChannelData cd;
> cd.vd = vd;
> cd.d = 0;
> cd.n = vd->n;
> cd.off = 0;
> cd.p = vd->uvw;
> cd.scale = 0;
> cd.t = 0;
> cd.texflag = TEX_TILE;
> Vector col = shader->Sample(&cd;);
>
> and this:
>
> ChannelData *cd = new ChannelData(vd);
> Vector col = shader->Sample(cd);
>
> right?
>
>
>
> * * *no, but still you have to fill the ChanndelData first, like cd->vd = vd etc. also don't forget to free your ChannelData with delete after using it.
cheers,
Matthias -
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 22/05/2007 at 03:16, xxxxxxxx wrote:
Thanks, i'm appreciate for your help.