TheGameCreators - CodeBase - Several Vertex Manipulation Functions

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Category: Animation

Version: 1.0

Information

Uploaded: 3rd Jan 2004 20:13

Modified: 1st Jan 1970 01:00

Author: Preston C

Summary

Manipulate your objects vertices with these functions!

Full Description

This code was programmed by Preston "NWC_Omega" Chaderton. Special Thanks To TheDarthster for assisting me in the creation of this library and explaining to me what format the make memblock from mesh command uses. This library will give you direct access to your objects vertex data. It does this by making a mesh, then memblock from the mesh, then editing the mesh data in the Memblock. The Library Contains the Following Functions PositionVertex(Object Number,Vertex Number,X Position,Y Position,Z Position) -Positions Vertex at Specified Coordinate SetVertexNormals(Object Number,Vertex Number,X Normal,Y Normal,Z Normal) -Sets the Vertices Current Normals SetVertexUV(Object Number,Vertex Number,U Coordinate,Y Coordinate) -Sets the Vertices Current UV Texture Coordinates VertexPositionX(Object Number,Vertex Number) -Returns the Vertices X Position VertexPositionY(Object Number,Vertex Number) -Returns the Vertices Y Position VertexPositionZ(Object Number,Vertex Number) -Returns the Vertices Z Position VertexNormalX(Object Number,Vertex Number) -Returns the Vertices X Normal VertexNormalY(Object Number,Vertex Number) -Returns the Vertices Y Normal VertexNormalZ(Object Number,Vertex Number) -Returns the Vertices Z Normal VertexU(Object Number,Vertex Number) -Returns the Vertices Current U Texture Coordinate VertexV(Object Number,Vertex Number) -Returns the Vertices Current V Texture Coordinate

DarkBASIC Professional Source Code

` This code was downloaded from The Game Creators

` It is reproduced here with full permission

` http://www.thegamecreators.com

Rem Vertice Editing Function Library

Rem By Preston "NWC_Omega" Chaderton

Rem Special Thanks To TheDarthster For Helping Me Through The Creation of This Library

RemStart

This library will give you direct access to your objects vertex data.

It does this by making a mesh, then memblock from the mesh, then editing

the mesh data in the Memblock.

The Library Contains the Following Functions

PositionVertex(Object Number,Vertex Number,X Position,Y Position,Z Position)

-Positions Vertex at Specified Coordinate

SetVertexNormals(Object Number,Vertex Number,X Normal,Y Normal,Z Normal)

-Sets the Vertices Current Normals

SetVertexUV(Object Number,Vertex Number,U Coordinate,Y Coordinate)

-Sets the Vertices Current UV Texture Coordinates

VertexPositionX(Object Number,Vertex Number)

-Returns the Vertices X Position

VertexPositionY(Object Number,Vertex Number)

-Returns the Vertices Y Position

VertexPositionZ(Object Number,Vertex Number)

-Returns the Vertices Z Position

VertexNormalX(Object Number,Vertex Number)

-Returns the Vertices X Normal

VertexNormalY(Object Number,Vertex Number)

-Returns the Vertices Y Normal

VertexNormalZ(Object Number,Vertex Number)

-Returns the Vertices Z Normal

VertexU(Object Number,Vertex Number)

-Returns the Vertices Current U Texture Coordinate

VertexV(Object Number,Vertex Number)

-Returns the Vertices Current V Texture Coordinate

RemEnd

`**********************************************

`               Library Setup!

`Please Copy and Paste this Following Code Into

`         The Top of Your Program.

`**********************************************

cls rgb(255,255,255)

get image 15000,0,0,1,1

`**********************************************

`   Please Do Not Use Image Number 15000

`     Please Do Not Use Mesh Number 10

`   Please Do Not Use Memblock Number 10

`**********************************************

`************************************************

`Documentation

`************************************************

RemStart

Memblock Mesh Format (338):

Make a Memblock of the right size (3 vertices, 36 bytes of data each)

make memblock 1,(polys*3*36)+12

Write FVF Header

write memblock dword 1,0,338

Write FVF Size

write memblock dword 1,4,36

Number of Vertices

write memblock dword 1,8,polys*3

Vertice Positions

write memblock float 1,12,x1#

write memblock float 1,16,y1#

write memblock float 1,20,z1#

Normals

write memblock float 1,24,0

write memblock float 1,28,0

write memblock float 1,32,-1.00

Colors

write memblock dword 1,36,rgb(255,0,0)

UV Coordinates

write memblock float 1,40,0.00

write memblock float 1,44,0.00

Memblock Mesh Format (274):

Make a Memblock of the right size (3 vertices, 32 bytes of data each)

make memblock 1,(polys*3*36)+12

Write FVF Header

write memblock dword 1,0,274

Write FVF Size

write memblock dword 1,4,32

Number of Vertices

write memblock dword 1,8,polys*3

Vertice Positions

write memblock float 1,12,x1#

write memblock float 1,16,y1#

write memblock float 1,20,z1#

Normals

write memblock float 1,24,0

write memblock float 1,28,0

write memblock float 1,32,-1.00

UV Coordinates

write memblock float 1,36,0.00

write memblock float 1,40,0.00

The make memblock from mesh command creates memblock meshes in the 274 format.  Please

remember this.

RemEnd

`*********************************************

`Functions

`*********************************************

Function PositionVertex(object,vertex,x#,y#,z#)

make mesh from object 10,object

make memblock from mesh 10,10

write memblock float 10,12+((32*vertex)-32),x#

write memblock float 10,(12+((32*vertex))-32)+4,y#

write memblock float 10,(12+((32*vertex))-32)+8,z#

delete mesh 10

delete object object

make mesh from memblock 10,10

make object object,10,15000

delete mesh 10

delete memblock 10

endfunction

Function SetVertexNormals(object,vertex,x#,y#,z#)

make mesh from object 10,object

make memblock from mesh 10,10

write memblock float 10,24+((32*vertex)-32),x#

write memblock float 10,(24+((32*vertex))-32)+4,y#

write memblock float 10,(24+((32*vertex))-32)+8,z#

delete mesh 10

delete object object

make mesh from memblock 10,10

make object object,10,15000

delete mesh 10

delete memblock 10

endfunction

Function SetVertexUV(object,vertex,u#,v#)

make mesh from object 10,object

make memblock from mesh 10,10

write memblock float 10,12+((32*vertex)-32),u#

write memblock float 10,(12+((32*vertex))-32)+4,v#

delete mesh 10

delete object object

make mesh from memblock 10,10

make object object,10,15000

delete mesh 10

delete memblock 10

endfunction

Function VertexPositionX(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

xpos=memblock float(10,12+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction xpos

Function VertexPositionY(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

ypos=memblock float(10,16+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction ypos

Function VertexPositionZ(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

zpos=memblock float(10,20+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction zpos

Function VertexNormalX(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

xpos=memblock float(10,24+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction xpos

Function VertexNormalY(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

ypos=memblock float(10,28+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction ypos

Function VertexNormalZ(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

zpos=memblock float(10,32+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction zpos

Function VertexU(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

upos=memblock float(10,36+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction upos

Function VertexV(object,vertex)

make mesh from object 10,object

make memblock from mesh 10,10

vpos=memblock float(10,40+((32*vertex)-32))

delete mesh 10

delete memblock 10

endfunction vpos

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Author Name:	Preston C
CodeBase Entries:	3

CodeBase - Several Vertex Manipulation Functions

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