- only pass if the mesh has vertex colors to drawParams() rather then the mcol its self, this saves a lookup on the color.
- drawing textures in editmode with no vertex colors would still lookup vertex colors on each face, instead cache this info for all faces.
Summary:
========
The idea here is to move the texface options into the material panel.
For images with the change please visit:
http://code.blender.org/index.php/2011/09/bge-material-texface-changes
1 - Some of the legacy problems 2.49 and 2.5x has with the texface system:
==========================================================================
1.1) Shadow, Bilboard and Halo are mutual exclusive (in the code), yet you can
select a face to be more than one mode.
1.2) Sort only works for blend Alpha yet it's an option regardless of the
Transparency Blend you pick.
1.3) Shared doesn't affect anything in BGE.
1.4) ObColor only works for Text objects (old bitmap texts) when using Texture
Face Materials. (not address yet, I so far ignored obcolor)
2 - Notes:
============
2.1) Now "Use Face Textures" in material Option panel will work in Multitexture
even if there is no texture channel.
2.2) In FaceTexture mode it will use TexFace all the time, even if you don't
check the "Use Texture Face" option in the UI. It's a matter of decision, since
the code for either way is there. I decided by the solution that makes the
creation of a material fast - in this mode the user doesn't need to mess with
textures or this "Use Texture Face" option at all. I'm not strong in my opinion
here. But I think if we don't have this then what is the point of the Texture
Face mode?
2.3) I kept references for tface only when we need the image, UV or the tiling
setting. It should help later when/if we split the Image and UV layers from the
tface struct (Campbell and Brecht proposal).
3 - Changes in a Nutshell:
==========================
3.1) "Texture Face" panel (in the Mesh/Object Data panel) no longer exists. Those settings are all part of the material properties, visible when Game Render is set.
3.2) "Texture Face" Shading mode (in the Render panel) is now called “Single Texture”, it needs a material for special settings (e.g. Billboard, Alpha Sort, …).
3.3) New options in the Material Panel
* Shadeless option in the Material panel is now supported for all three Shading modes.
* Physics is now toggleable, this is the old Collision option.
* Two Side (on) is now called Back Culling (off).
* Alpha Sort is one of the Alpha options, together (and mutually exclusive) to Alpha Blend, Alpha Clip, Add and Opaque (i.e. solid).
* Shadow, Billboard and Halo are grouped in the “Face Orientation” property.
* "Face Textures" and "Face Textures Alpha" (under Options) can be used for all but GLSL shading mode (to be supported in GLSL eventually).
* The backend in the game engine is still the same as before. The only changes are in the interface and in the way you need to think your materials. The bottomline is: It’s no longer possible to share materials between faces that do not share the same game properties.
4 - Acknowledgment:
==================
Mike Pan for the design discussions, and testing along the whole development process.
Vitor Balbio for the first hands-on code with the interface changes. That helped me a lot to push me into work on that.
Benoit Bolsee and Brecht van Lommel for patch review (* no one reviewed the whole patch, or the latest iteractions, so I still hold liability for any problems).
Blender artists that gave feedback and helped testing the patch.
Patch review and original documentation can be found here:
http://wiki.blender.org/index.php/User:Dfelinto/TexFacehttp://codereview.appspot.com/4289041/
- removed some unused functions.
- renamed vars to make more sense paint_vertex.c 'flags' --> 'lock_flags'
- some odd modifications were made in unrealted, commented code, copy these back from trunk.
- rename vertex_group_fix 'cp' property to 'accuracy'
- make style more consistant with trunk.
- remove 'Radish' comments.
Removed the drawSelectedVerts and added drawSelectedVertices, which uses dm->foreachMappedVert.
In calc_weightpaint_vert_color():
Made the weight paint color black and return instead of input=-1
Made the pose bone selection normal when multi-paint is inactive.
Name fix for functions using mv instead of mvert.
Used vector functions provided by the math lib.
Changed some MEM_callocN references to be stacks.
Changed dm_deform_clear to use ob->derivedDeform primarily
Made the variable "float **changes" into "float (*changes)[2]"
Used CTX_data_active_object() in place of CTX_data_pointer_get_type()
Added the invert selection hotkey "Ctrl+I" to weight paint's vertex mask.
- move get_selected_defgroups & count_selected_defgroups into blenkernel
- split calc_weightpaint_vert_color() logic so its more obvious whats default and multipaint behavior
- avoid needless context switching quad/tri, flat/smooth.
- dont call glNormal3vf() lighting is disabled.
gives ~2x speedup with a subdivided cube, but thats probably the best case, quad/tri smooth/flat mix will slow down a bit.
Problem was caused by unneeded call of CDDM_calc_normals when
creating derived mesh for object which duplicated mvert array.
It shouldn't happen unless object has got shapekeys or deformation
modifiers on the top of stack.
Added callback to drawMappedFaces which checks if two faces have got equal draw options.
After discussion with Brecht we found it's nicest solution for now:
- Disabling VBOs in edit mode for this case wouldn't be nicer for this case -
some additional flag stored in DM should be added in this case.
- Adding new callback in DM isn't nicer that this solution.
- Handling face selection in drawobject would lead to duplicated code
which is also not nice.
Hopefully, this callback could handle all cases in the future.
Also, Brecht mentioned current VBO implementation isn't perfect, so maybe
when we'll redesign this area dealing with edit mode wouldn't be so tricky.
Normalize, Normalize All, Invert, Clean, and Levels.
Face mask and vertex select/mask are now mutually exclusive options.
Went ahead and allowed vertex selection support and masking for vertex paint.
* Canvas and brush can be now enabled simultaneously. This way it's possible for two canvases to interact.
* Added basic anti-aliasing support for vertex surfaces.
* 3D-view color preview now works even when there's subsurf modifier after Dynamic Paint in modifier stack.
* Added a new brush option to use proximity from object center.
* Default surface frame range now use scene's start and end values.
* Improved ray checks for volume brushes.
* Added new "non-closed" option for volume brushes. This way it's possible to use planar meshes as "volume" brushes with predefined ray direction.
* New carrot branch splash image by CGEffex.
* Improved brush affection code.
* Lots of smaller improvements.
* Fixed: Weight paint didn't work with particles.
* Fixed: Point cache didn't work for non-wave surfaces anymore since last commit.
(an if statement surrounding Multi-Paint still checks the lock flags to see if it should bother changing anything)
Also, I changed lock's redistribution method so that if there was no enough space
on other unlocked groups, it tries to keep the new weights' ratios to each other
Removed the DerivedMesh face iterators (they sucked).
This should make subsurf faster. Also sped up multires
a bit (not sure if it's strictly correct, need to look
at it later).
Also, the color display now only shows colors for the areas that are shared by the selected groups.
Finally, Multi-Paint responds to auto normalize, it determines when it can not be edited.
Added a basic multiple bone group paint feature "Multi-Paint" and its corresponding checkbox next to "Auto Normalize," but I need to access the ToolSettings for it in armature to make bone selection function/draw correctly
When you multi-paint, it paints on selected bones while keeping the weight ratios on a vertex of the selected groups the same. You can't currently multi-paint on a vertex with a locked deform group.
