①: AGAL ----3D 步骤整理
1,contextd3D.configureBackBuffer(swfWidth,swfHeight,0,true);
说明: 3D后备缓冲区的像素的大小
2,initShaders()
Ps: var vertexShaderAssembler : AGALMiniAssembler = new AGALMiniAssembler();
vertexShaderAssembler.assemble(
Context3DProgramType.VERTEX,
“m44 op,va0,vc0\n” +
“mov v0, va0\n”+
“mov v1,va1\n”
);
var fragmentShaderAssembler : AGALMiniAssembler = new AGALMiniAssembler();
fragmentSahderAssembler.assemble(
Context3DProgramType.FRAGMENT,
“tex ft0, v1,fs0<2d,repeat,miplinear>\n”+
“mov oc, ft0\n”
);
shaderProgram = context3D.createProgram();
shaderProgram.upload(vertexShaderAssembler.agal,fragmentShaderAssembler.agal);
3,indexBuffer3D = context3D.createIndexBuffer(meshIndexData.lenght);
indexBuffer3D.uploadFromVector(meshIndexData,0,meshIndexData.lenght);
vertexBuffer3D= context3D.createVertexBuffer(meshVertexData.lenght/8,8);
vertexBuffer3D.uploadFromVector(meshVertexData,0,meshIndexData.lenght/8);
4,Texture
myTexture= context3D.createTexture(textureSize,textureSize,Context3DTextureFormat.BGRA,false);
uploadTextureWithMipmaps(myTexture,myTextureData.bitmapData);//产生Map映射
5,3D透视矩阵
PrespectiveMatrix3D.indentity();
PrespectiveMatrix3D.perspectiveFieldOfViewRH(
45.0,
swfWidth/swfHeight,
0.01,
100
);
//定义相机位置的矩阵
viewMatrix.indentity();
viewMatrix.appendTranslation(0,0,-4);//相机后移
6,适时地渲染
//添加新的角度 --目标
modelViewProjection.identify();
modelViewProjection.append(modelMatrix);
modelViewProjection.append(veiwMatrix);
modelViewProjection.append(PrespectiveMatrix3D);
Context3D.setProgramConstantsFromMatrix(Context3DProgramType.VERTEX,0,modelViewProjection,true);//制造vc0
①://设置各个渲染时的数据:
Context3D.setVertexBufferAt(0,vertexBuffer3D,0,Context3DVertexBufferFormat.FLOAT_3);//三角形的3个顶点 ---va0
②://绘制三角形
Context3D.drawTrianggles(indexBuffer3D,0,meshIndexData.length/3);
Context3D,present();
