multiple object with different colors

i'm drawing 3 object, they are created from the same class so they are identical.

i try to alter the color, so they have 3 different colors.

the result is that the color of the first object is used for the other object aswell.

this is some of the render function

myGraph[0].GraphBorderColor = Color.Red;

myGraph[1].GraphBorderColor = Color.Green;

myGraph[2].GraphBorderColor = Color.Gray;

for(int i=0;i<3;i++)

{

Vector3 grafdist = new Vector3((float)i*10,(float)i*0,(float)i*10);

Vector2 mousepos = new Vector2(MouseMovedPoint.X,MouseMovedPoint.Y);

SetupMatrices(grafdist, mousepos);//this sets up the view

myGraph Idea .StreamNum = i;//this sets up the stream for device.SetStreamSource

myGraph Idea .MakeScene();//this makes the scene

}

device.Present();

this is the function MakeScene():

this.device.BeginScene();

device.VertexFormat = CustomVertex.PositionColored.Format;

device.SetStreamSource(this.StreamNum, this.vBuffer, 0);

device.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 5);//window

device.DrawPrimitives(PrimitiveType.LineList, 6, 4);//axis

device.DrawPrimitives(PrimitiveType.LineList, 10, 40);//axis markers

device.EndScene();

I look forward to hear from you.

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multiple object with different colors

scjconsulting
thanks it works perfectly.
Holzberg
here it is, i hope you can help:

public class LineInterpolation2DGraph : Graph2DInterface

{

private const int numVerts = 100;

public LineInterpolation2DGraph(Device dev)

{

this.device = dev;

this.InitGraf();

}

public override bool InitGraf()

{

this.XBins = 100;

this.YBins = 30;

this.BackGroundColor = Color.LightGray;

this.GraphAboveColor = Color.WhiteSmoke;

this.GraphUnderColor = Color.Brown;

this.GraphBorderColor = Color.Black;

this.AxisColor = Color.Green;

this.GraphPlotDimention = new Rectangle(new Point(0,0),new Size(80,30));

this.GraphWindowDimention = new Rectangle(new Point(0,0),new Size(100,55));

this.PlotDistFromWindow_X = (GraphWindowDimention.Width - GraphPlotDimention.Width)/2;

this.PlotDistFromWindow_Y = (GraphWindowDimention.Height - GraphPlotDimention.Height)/2;

this.vBuffer = new VertexBuffer(typeof(CustomVertex.PositionColored), numVerts, this.device, Usage.Dynamic | Usage.WriteOnly, CustomVertex.PositionColored.Format, Pool.Default);

return true;

}

public override void CreateDefaultVertex()

{

int vertisCount = 2;

CustomVertex.PositionColored[] verts = new CustomVertex.PositionColored[4];

verts[0].Color = Color.FromArgb(128,GraphBorderColor).ToArgb();

verts[0].Position = new Vector3(0,0,0);

verts[1].Color = Color.FromArgb(128,GraphBorderColor).ToArgb();

verts[1].Position = new Vector3(0,GraphWindowDimention.Height,0);

verts[2].Color = Color.FromArgb(128,GraphBorderColor).ToArgb();

verts[2].Position = new Vector3(GraphWindowDimention.Width,0,0);

verts[3].Color = Color.FromArgb(128,GraphBorderColor).ToArgb();

verts[3].Position = new Vector3 (GraphWindowDimention.Width,GraphWindowDimention.Height,0);

this.vBuffer.SetData(verts,0,LockFlags.None);

vertisCount += 4;

}

public override void MakeScene()

{

try

{

this.CreateDefaultVertex();

this.device.BeginScene();

device.VertexFormat = CustomVertex.PositionColored.Format;

device.SetStreamSource(this.StreamNum, this.vBuffer, 0);

device.SetRenderState( RenderStates.AlphaBlendEnable, true );

device.SetRenderState( RenderStates.SourceBlend, (int)Blend.SourceAlpha );

device.SetRenderState( RenderStates.DestinationBlend, (int)Blend.InvSourceAlpha );

device.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 5);

device.EndScene();

}

catch(InvalidCallException IvCEx)

{

throw IvCEx;

}

}

}
snibbets
The problem is that you're setting streamnum to something other than 0, yet are using a FVF vertex format. StreamNum is NOT the "order of the stream within the scene"; it's the "index of the stream, indexed in parallel, during a single draw call". When you're using FVF vertex buffers, you always want the stream index to be 0, because all the FVF codes map to stream 0.
Ashok Debnath
It would be beneficial to show us your myGraph class. Somehow the colors are not being set correctly.
multiple object with different colors

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