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Texture - Texture handle. Blend - Blend mode of texture. 0: Do not blend 1: No blend, or Alpha (alpha when texture loaded with alpha flag - not recommended for multitexturing - see below) 2: Multiply (default) 3: Add 4: Dot3 5: Multiply 2 |
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Sets the blending mode for a texture. The texture blend mode determines how the texture will blend with the texture or polygon which is 'below' it. Texture 0 will blend with the polygons of the entity it is applied to. Texture 1 will blend with texture 0. Texture 2 will blend with texture 1. And so on. Texture blending in Blitz effectively takes the highest order texture (the one with the highest index) and it blends with the texture below it, then that result to the texture directly below again, and so on until texture 0 which is blended with the polygons of the entity it is applied to and thus the world, depending on the dxEntityBlend of the object. Each of the blend modes are identical to their dxEntityBlend counterparts. In the case of multitexturing (more than one texture applied to an entity), it is not recommended you blend textures that have been loaded with the alpha flag, as this can cause unpredictable results on a variety of different graphics cards. Use dxEntityTexture to set the index number of a texture. See also: dxEntityBlend, dxEntityTexture. |
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; dxTextureBlend Example ; -------------------- dxGraphics3D 640,480 dxSetBuffer dxBackBuffer() camera=dxCreateCamera() ; Choose a background colour which isn't the same colour as anything else, to avoid confusion dxCameraClsColor camera,255,0,0 light=dxCreateLight() dxRotateEntity light,90,0,0 cube=dxCreateCube() dxPositionEntity cube,0,0,5 ; Load textures tex0=dxLoadTexture( "media/b3dlogo.jpg" ) tex1=dxLoadTexture( "media/chorme-2.bmp" ) ; Texture cube with textures dxEntityTexture cube,tex0,0,0 dxEntityTexture cube,tex1,0,1 tex0_blend_info$="no texture" tex1_blend_info$="no texture" While Not dxKeyDown( 1 ) ; Change texture 0 blending mode If dxKeyHit( 11 )=True tex0_blend=tex0_blend+1 If tex0_blend=4 Then tex0_blend=0 If tex0_blend=0 Then tex0_blend_info$="no texture" If tex0_blend=1 Then tex0_blend_info$="no blend" If tex0_blend=2 Then tex0_blend_info$="multiply" If tex0_blend=3 Then tex0_blend_info$="add" EndIf ; Change texture 1 blending mode If dxKeyHit( 2 )=True tex1_blend=tex1_blend+1 If tex1_blend=4 Then tex1_blend=0 If tex1_blend=0 Then tex1_blend_info$="no texture" If tex1_blend=1 Then tex1_blend_info$="no blend" If tex1_blend=2 Then tex1_blend_info$="multiply" If tex1_blend=3 Then tex1_blend_info$="add" EndIf ; Set texture blend modes dxTextureBlend tex0,tex0_blend dxTextureBlend tex1,tex1_blend dxTurnEntity cube,0.1,0.1,0.1 dxRenderWorld dxText 0,0,"Press 0 to change texture 0's blending mode" dxText 0,20,"Press 1 to change texture 1's blending mode" dxText 0,40,"dxTextureBlend tex0,"+tex0_blend+" ("+tex0_blend_info$+")" dxText 0,60,"dxTextureBlend tex1,"+tex1_blend+" ("+tex1_blend_info$+")" dxFlip Wend End |