static WebGLTexture InternalConstructor(WebGLRenderingContext gl)
{
// X:\jsc.svn\examples\javascript\chrome\apps\WebGL\ChromeWebGLFrameBuffer\ChromeWebGLFrameBuffer\Application.cs
// X:\jsc.svn\examples\javascript\chrome\apps\WebGL\ChromeShaderToyColumns\ChromeShaderToyColumns\Library\ShaderToy.cs
var p = gl.createTexture();
return(p);
}
public void onSurfaceCreated(GL10 glUnused, javax.microedition.khronos.egl.EGLConfig config)
{
// Set the background clear color to black.
gl.clearColor(0.0f, 0.0f, 0.0f, 0.0f);
// Use culling to remove back faces.
gl.enable(gl.CULL_FACE);
// Enable depth testing
gl.enable(gl.DEPTH_TEST);
// Enable texture mapping
gl.enable(gl.TEXTURE_2D);
// Position the eye in front of the origin.
float eyeX = 0.0f;
float eyeY = 0.0f;
float eyeZ = -0.5f;
// We are looking toward the distance
float lookX = 0.0f;
float lookY = 0.0f;
float lookZ = -5.0f;
// Set our up vector. This is where our head would be pointing were we holding the camera.
float upX = 0.0f;
float upY = 1.0f;
float upZ = 0.0f;
// Set the view matrix. This matrix can be said to represent the camera position.
// NOTE: In OpenGL 1, a ModelView matrix is used, which is a combination of a model and
// view matrix. In OpenGL 2, we can keep track of these matrices separately if we choose.
Matrix.setLookAtM(mViewMatrix, 0, eyeX, eyeY, eyeZ, lookX, lookY, lookZ, upX, upY, upZ);
mProgramHandle = gl.createProgram(
new Shaders.per_pixelVertexShader(),
new Shaders.per_pixelFragmentShader()
);
gl.bindAttribLocation(mProgramHandle, 0, "a_Position");
gl.bindAttribLocation(mProgramHandle, 1, "a_Color");
gl.bindAttribLocation(mProgramHandle, 2, "a_Normal");
gl.bindAttribLocation(mProgramHandle, 3, "a_TexCoordinate");
gl.linkProgram(mProgramHandle);
// Define a simple shader program for our point.
mPointProgramHandle = gl.createProgram(
new Shaders.pointVertexShader(),
new Shaders.pointFragmentShader()
);
gl.bindAttribLocation(mPointProgramHandle, 0, "a_Position");
gl.linkProgram(mPointProgramHandle);
#region loadTexture
Func <android.graphics.Bitmap, WebGLTexture> loadTexture = (bitmap) =>
{
var textureHandle = gl.createTexture();
// Bind to the texture in OpenGL
gl.bindTexture(gl.TEXTURE_2D, textureHandle);
// Set filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, (int)gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, (int)gl.NEAREST);
// Load the bitmap into the bound texture.
//gl.texImage2D(
GLUtils.texImage2D((int)gl.TEXTURE_2D, 0, bitmap, 0);
// Recycle the bitmap, since its data has been loaded into OpenGL.
bitmap.recycle();
return(textureHandle);
};
#endregion
#region openFileFromAssets
Func <string, InputStream> openFileFromAssets = (string spath) =>
{
InputStream value = null;
try
{
value = this.mActivityContext.getResources().getAssets().open(spath);
}
catch
{
}
return(value);
};
#endregion
// Read in the resource
var bumpy_bricks_public_domain = android.graphics.BitmapFactory.decodeStream(
openFileFromAssets("bumpy_bricks_public_domain.jpg")
);
// Load the texture
mTextureDataHandle = loadTexture(
bumpy_bricks_public_domain
);
gl.generateMipmap(gl.TEXTURE_2D);
}