VertexColor

VertexColor

Command Index · Blitz3D · Surfaces

VertexColor:Void surface:Int32, index:Int32, red:Float32, green:Float32, blue:Float32, alpha:Float32=1

Parameter	Mode	Type	Default	Description
surface	In	Int32	required	Surface handle.
index	In	Int32	required	Index of the vertex, from 0.
red	In	Float32	required	Red part, 0 to 255.
green	In	Float32	required	Green part, 0 to 255.
blue	In	Float32	required	Blue part, 0 to 255.
alpha	In	Float32	1	Opacity, 0 to 1. Defaults to 1.

Description

Sets the color of a vertex and its alpha. The color is blended smoothly across each triangle between its three vertices, which gives gradients and cheap baked lighting. It is multiplied with the entity color. Colors go from 0 to 255 and the alpha from 0, invisible, to 1, solid. The values can be floats and are kept exactly, instead of being rounded to whole numbers. Alpha per vertex needs EntityFX 32 on the entity in the original.

Examples

Graphics3D 320, 240, 0, 2
SetBuffer BackBuffer()
camera = CreateCamera()
PositionEntity camera, 0, 0, -4
mesh = CreateMesh()
surf = CreateSurface(mesh)
a = AddVertex(surf, -1.5, -1.2, 0)
b = AddVertex(surf, 0, 1.4, 0)
c = AddVertex(surf, 1.5, -1.2, 0)
AddTriangle surf, a, b, c
VertexColor surf, a, 255, 40, 40
VertexColor surf, b, 40, 255, 40
VertexColor surf, c, 40, 40, 255
; Show the vertex colors without light.
EntityFX mesh, 1 + 2
RenderWorld
Flip
WaitKey

Media

Related Commands

VertexAlpha, VertexBlue, VertexCoords, VertexGreen, VertexNormal, VertexNX, VertexNY, VertexNZ

Command Index · Blitz3D · Surfaces