[SOLVED]Can't get bake function to work

Helper

On 15/05/2017 at 02:01, xxxxxxxx wrote:

I can't get the bake functino to work. I always got a black output. And There is no informations / exemples in the python sdk.

Moreover it would be nice to have in the sdk which option are needed in all cases(like BAKE_TEX_WIDTH, BAKE_TEX_HEIGHT).

illumBMP = c4d.bitmaps.BaseBitmap()
tmp = illumBMP.Init(512, 512, 24, 0)
  
#make sur to init a width/height
bc = c4d.BaseContainer()
bc[c4d.BAKE_TEX_COLOR] = True
bc[c4d.BAKE_TEX_COLOR_ILLUM] = True
bc[c4d.BAKE_TEX_NO_INIT_BITMAP] = True
bc[c4d.BAKE_TEX_WIDTH] = True
bc[c4d.BAKE_TEX_HEIGHT] = True
  
thread = c4d.threading.GeGetCurrentThread()
ibt = c4d.utils.InitBakeTexture(doc, targetTex, targetUVW, targetUVW, bc, thread)
  
#Check if something went wrong
if ibt[1] != c4d.BAKE_TEX_ERR_NONE:
	print ibt
	return
  
#Assign the new render doc
render_doc = ibt[0]
bt = c4d.utils.BakeTexture(render_doc, bc, illumBMP, thread, None)
  
#Check if something went wrong
if bt != c4d.BAKE_TEX_ERR_NONE:
	print bt
	return
  
#save our baked image to somewhere:
f_path = os.path.join(tempfile.gettempdir(),"realTimeIllumBake_buffer_picture.jpg")
illumBMP.Save(f_path, c4d.FILTER_JPG)

Thanks in advance (it's not very important it's just for myself, so take your time support guys ;))

Helper

On 16/05/2017 at 03:33, xxxxxxxx wrote:

Hi,

There's an example in the Python SDK for texture baking functions: https://github.com/PluginCafe/cinema4d_py_sdk/blob/master/plugins/Py-TextureBaker/Py-TextureBaker.pyp
You can see in the example that quite some data has to been set into the baking settings for c4d.utils.InitBakeTexture().

Also you can simply pass None for the custom thread 'th' for the baking operation initialized with c4d.utils.InitBakeTexture(). Note since R18.039 the parameter is optional.
Passing None or nothing means the baking operation will run on the main thread and will block Cinema 4D's GUI.

Helper

On 16/05/2017 at 04:07, xxxxxxxx wrote:

Thanks you unfortually I still can't get it to work.

Here is the scene.
https://www.sendspace.com/file/4t0w5e

Select light null and execute the script you saw a black result. While if you run the bake from the Bake tag it's work properly.

import c4d
import tempfile
import os
  
def main() :
    tag = doc.GetActiveObject()
    targetTex = None
    targetUVW = None
    targetDisp = None
    try:
        targetTex = tag[c4d.ID_USERDATA,2]
        targetUVW = tag[c4d.ID_USERDATA,4]
        targetDisp = tag[c4d.ID_USERDATA,5]
    except:
        return
        
    illumBMP = c4d.bitmaps.MultipassBitmap(512, 512, c4d.COLORMODE_RGB)
    
    
    bc = c4d.BaseContainer()
    bc[c4d.BAKE_TEX_WIDTH] = True
    bc[c4d.BAKE_TEX_HEIGHT] = True
    bc[c4d.BAKE_TEX_CONTINUE_UV] = False
    bc[c4d.BAKE_TEX_SUPERSAMPLING] = 0
    bc[c4d.BAKE_TEX_FILL_COLOR] = c4d.Vector(1)
    bc[c4d.BAKE_TEX_USE_BUMP] = False
    bc[c4d.BAKE_TEX_USE_CAMERA_VECTOR] = False
    bc[c4d.BAKE_TEX_AUTO_SIZE] = False
    bc[c4d.BAKE_TEX_NO_GI] = False
    bc[c4d.BAKE_TEX_GENERATE_UNDO] = False
    bc[c4d.BAKE_TEX_PREVIEW] = False
    bc[c4d.BAKE_TEX_SURFACECOLOR] = True
    bc[c4d.BAKE_TEX_UV_LEFT] = 0.0
    bc[c4d.BAKE_TEX_UV_RIGHT] = 1.0
    bc[c4d.BAKE_TEX_UV_TOP] = 0.0
    bc[c4d.BAKE_TEX_UV_BOTTOM] = 1.0
    bc[c4d.BAKE_TEX_NORMAL_METHOD] = c4d.BAKE_TEX_NORMAL_METHOD_OBJECT 
    
  
    thread = c4d.threading.GeGetCurrentThread()
    ibt = c4d.utils.InitBakeTexture(doc, targetTex, targetUVW, targetUVW, bc, thread)
    
    #Check if something went wrong
    if ibt[1] != c4d.BAKE_TEX_ERR_NONE:
        print ibt
        return
    
    #Assign the new render doc
    render_doc = ibt[0]
    bt = c4d.utils.BakeTexture(render_doc, bc, illumBMP, thread, None)
    
    #Check if something went wrong
    if bt != c4d.BAKE_TEX_ERR_NONE:
        print bt
        return
    
    #save our baked image to somewhere:
    f_path = os.path.join(tempfile.gettempdir(),"realTimeIllumBake_buffer_picture.jpg")
    illumBMP.Save(f_path, c4d.FILTER_JPG)
    c4d.bitmaps.ShowBitmap(illumBMP)
    
    #Set layer to the bmp
    layer_sha = targetDisp[c4d.ID_MG_SHADER_SHADER]
    first_sha_layer = layer_sha.GetFirstLayer()
    shader = first_sha_layer.GetParameter(c4d.LAYER_S_PARAM_SHADER_LINK)
    shader[c4d.BITMAPSHADER_FILENAME] = f_path
    
  
if __name__=='__main__':
    main()

Helper

On 16/05/2017 at 06:30, xxxxxxxx wrote:

The issue is you're passing True for BAKE_TEX_WIDTH/BAKE_TEX_HEIGHT settings whereas they should be set to 512.

Helper

On 16/05/2017 at 06:42, xxxxxxxx wrote:

I feel stupid.

Thanks you.