[SOLVED] how to use addColor() function work of ObjectMeshDynamic class

[jiaxin]

Hello,

 

I use unigine sim 2.0, when i use addColor() function of ObjectMeshDynamic class it can not work,the code like below:

int init() { ObjectMeshDynamic mesh = new ObjectMeshDynamic(); // Create a dynamic mesh and add it into the editor. engine.editor.addNode(node_remove(mesh));     mesh.setWorldTransform(translate(Vec3(0.0f,0.0f,2.0f))); mesh.setMaterial("mesh_base","*"); mesh.setProperty("surface_base","*");        mesh.addTriangleQuads(1); // Allocate space in a vertex buffer and create vertex indices.   mesh.addVertex(vec3(-1.0f,-1.0f,0.0f)); // Add vertices and assign texture coordinates, if necessary. mesh.addColor(vec4(1,0,0,1));     mesh.addVertex(vec3(1.0f,-1.0f,0.0f)); mesh.addColor(vec4(1,1,0,1));     mesh.addVertex(vec3(1.0f,1.0f,0.0f)); mesh.addColor(vec4(1,1,1,1));     mesh.addVertex(vec3(-1.0f,1.0f,0.0f)); mesh.addColor(vec4(0,0,0,1));     mesh.updateTangents(); // Calculate tangent vectors. mesh.updateIndices(); // Optimize vertex and index buffers, if necessary.       mesh.updateBounds(); // Calculate a mesh bounding box.     return 1;}

How can i use it for work?

 

Thanks.

[maxi]

Hi Jiaxin,

 

Your code is correct, but you need to tune up an assigned material. Firstly assign an editable material to ObjectDynamic, then enable its state: "vertex_color" and set "vertex_albedo" state to rgb.

[jiaxin]

Hi Jiaxin,

 

Your code is correct, but you need to tune up an assigned material. Firstly assign an editable material to ObjectDynamic, then enable its state: "vertex_color" and set "vertex_albedo" state to rgb.

Hi maxi,

 

Thanks very much for you reply,i could not find the "vertex_color" state  parameter, or  do I need to customize and configure this parameter?

 

 

Thanks.

[maxi]

Hi jiaxin,

 

Sorry, i didn't mention, that this state was introduced with latest 2.2 release. The only way to visualize this in 2.0 is to write custom shader. Sorry for the inconvenience caused.

[jiaxin]

Hi maxi,

 

 

Well, then,i will consider use other methods. but still thanks.