TextureStripH

TextureStripH ImageIndex, x1, u1, v1, x2, u2, v2, ypos

Parameters:     ImageIndex = The Index of the image you wish to read the pixels from     x1 = The starting X coordinate of the strip     u1 = The starting U coord on the source image     v1 = The starting V coord on the source image     x2 = The ending X coordinate of the strip     u2 = The ending U coord on the source image     v2 = The ending V coord on the source image     ypos = The Y position of this strip

Returns: NONE

TextureStripH draws a horizontal texture mapped strip to the current surface.       NOTE: UV coords need to be multed by $10000 to ensure they're in the correct position for use with texture stip commands. (See bellow for reason) FACTS:       * UV coords (the X/Y coords on the image) need to be in 16:16 format. Which means that their a 32bit integer, broken up into two halves. The upper 16bits are the whole number part, and the lower 16bit is the fractional part. This is useful when doing your own edge/effects calculations and then feeding the result directly into the strip render routine as it avoid truncating the UV values.       * UV coords should always be positive.       *UV coords should range between 0 and the source textures width/height minus 1. So To the set the U to the images right hand edge you'd go U= (Width-1) * $10000       * TextureStripH will render to the current surface, except when the user has either CaptureToScene, or CaptureToWorld activated. In either situation the drawing request will be added to the scene or world qeues. Mini Tutorial:       This example draw a bunch of texture mapped strips from a source image.       ; create a fx image for us to render texture strips from   CreateImage 1,100,100   RenderToImage 1   For lp=0 To 100      CircleC Rnd(100),Rnd(100),Rnd(10),1,RndRGB()   Next   RenderToScreen   PrepareFXImage 1      DrawImage 1,50,50,0       ; draw 100 strips   For lp =0 To 100    ; calc the UV coords on the source image          ; remember UV coords are stored in 16:16 format.          ; So the whole part, is in the top 16bits an    ; the fractional part is in the lower 16bits.          ; If you don't know what that means, then just    ; mult your UV's by $10000.  Which will give the    ; texture routines the correct texture coords in    ; most cases          ; Set the Left Strip X coord to 0  and mult it by $10000    ; to convert it to 16:16 format            u1=0 * $10000          ; Set the Left Strip V coord to lp  and mult it by $10000    ; to convert it to 16:16 format      V1=lp * $10000                  u2=100 * $10000      V2=lp * $10000      TextureStripH 1,300-lp,u1,v1,400+lp,u2,v2,50+lp   Next    ; Display the Screen and wait for the user to press a key   Sync   WaitKey

Related Info:	GouraudQuad | GouraudStripH | GouraudStripV | GouraudTri | TextureQuad | TextureStripV | TextureTri :

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