private int setupRenderTextureAndRenderbuffer(int width, int height)
{
if (mTextureId != -1)
{
GLES20.GlDeleteTextures(1, new int[] { mTextureId }, 0);
}
if (mRenderbufferId != -1)
{
GLES20.GlDeleteRenderbuffers(1, new int[] { mRenderbufferId }, 0);
}
if (mFramebufferId != -1)
{
GLES20.GlDeleteFramebuffers(1, new int[] { mFramebufferId }, 0);
}
mTextureId = createTexture(width, height);
checkGlError("setupRenderTextureAndRenderbuffer: create texture");
int[] renderbufferIds = new int[1];
GLES20.GlGenRenderbuffers(1, renderbufferIds, 0);
GLES20.GlBindRenderbuffer(36161, renderbufferIds[0]);
GLES20.GlRenderbufferStorage(36161, 33189, width, height);
mRenderbufferId = renderbufferIds[0];
checkGlError("setupRenderTextureAndRenderbuffer: create renderbuffer");
int[] framebufferIds = new int[1];
GLES20.GlGenFramebuffers(1, framebufferIds, 0);
GLES20.GlBindFramebuffer(36160, framebufferIds[0]);
mFramebufferId = framebufferIds[0];
GLES20.GlFramebufferTexture2D(36160, 36064, 3553, mTextureId, 0);
GLES20.GlFramebufferRenderbuffer(36160, 36096, 36161, renderbufferIds[0]);
int status = GLES20.GlCheckFramebufferStatus(36160);
if (status != 36053)
{
throw new Java.Lang.RuntimeException("Framebuffer is not complete: " + Java.Lang.Integer.ToHexString(status));
}
GLES20.GlBindFramebuffer(36160, 0);
return(framebufferIds[0]);
}
/**
* Initializes FBO with given parameters. Width and height are used to
* generate textures out of which all are sized same to this FBO. If you
* give genRenderBuffer a value 'true', depth buffer will be generated also.
*
* @param width
* FBO width in pixels
* @param height
* FBO height in pixels
* @param textureCount
* Number of textures to generate
* @param genDepthBuffer
* If true, depth buffer is allocated for this FBO @ param
* genStencilBuffer If true, stencil buffer is allocated for this
* FBO
*/
public void init(int width, int height, int textureCount,
bool textureExternalOES)
{
// Just in case.
Reset();
// Store FBO size.
_width = width;
_height = height;
// Genereta FBO.
var handle = new int[] { 0 };
GLES20.GlGenFramebuffers(1, handle, 0);
_frameBufferHandle = handle[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, _frameBufferHandle);
// Generate textures.
_textureHandles = new int[textureCount];
GLES20.GlGenTextures(textureCount, _textureHandles, 0);
var target = textureExternalOES ? GLES11Ext.GlTextureExternalOes
: GLES20.GlTexture2d;
foreach (var texture in _textureHandles)
{
GLES20.GlBindTexture(target, texture);
GLES20.GlTexParameteri(GLES20.GlTexture2d,
GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(target, GLES20.GlTextureWrapT,
GLES20.GlClampToEdge);
GLES20.GlTexParameteri(target, GLES20.GlTextureMinFilter,
GLES20.GlNearest);
GLES20.GlTexParameteri(target, GLES20.GlTextureMagFilter,
GLES20.GlLinear);
if (target == GLES20.GlTexture2d)
{
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba,
_width, _height, 0, GLES20.GlRgba,
GLES20.GlUnsignedByte, null);
}
}
}
private void create(int width, int height)
{
// FBO
int[] ret = new int[1];
// frame buffer
GLES20.GlGenFramebuffers(1, ret, 0);
FBO = ret[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, FBO);
// depth buffer
GLES20.GlGenRenderbuffers(1, ret, 0);
RBOD = ret[0];
GLES20.GlBindRenderbuffer(GLES20.GlFramebuffer, RBOD);
GLES20.GlRenderbufferStorage(GLES20.GlRenderbuffer, GLES20.GlDepthComponent16, width, height);
GLES20.GlFramebufferRenderbuffer(GLES20.GlFramebuffer, GLES20.GlDepthAttachment, GLES20.GlRenderbuffer, RBOD);
// color buffer (is texture)
GLES20.GlPixelStorei(GLES20.GlUnpackAlignment, 1);
GLES20.GlGenTextures(1, ret, 0);
RBOC = ret[0];
GLES20.GlBindTexture(GLES20.GlTexture2d, RBOC);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMagFilter, GLES20.GlLinear);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMinFilter, GLES20.GlLinear);
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba, width, height, 0, GLES20.GlRgba, GLES20.GlUnsignedByte, null);
GLES20.GlFramebufferTexture2D(GLES20.GlFramebuffer, GLES20.GlColorAttachment0, GLES20.GlTexture2d, RBOC, 0);
if (GLES20.GlCheckFramebufferStatus(GLES20.GlFramebuffer) != GLES20.GlFramebufferComplete)
{
Log.Debug(TAG, "Fail to create FBO.");
FBO = 0;
RBOD = 0;
RBOC = 0;
}
}
public void OnSurfaceCreated(IGL10 gl, Javax.Microedition.Khronos.Egl.EGLConfig config)
{
GLES20.GlClearColor(0.9f, 0.1f, 0.1f, 1.0f);
// GLES20.GlViewport(0, 0, glSurfaceView.Width, glSurfaceView.Height);
textureSize = arSession.CameraConfig.TextureSize;
arSession.SetDisplayGeometry(1, targetResolution.Width, targetResolution.Height);
int[] glObjs = new int[1];
GLES20.GlGenFramebuffers(1, glObjs, 0);
fboId = glObjs[0];
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, fboId);
GLES20.GlViewport(0, 0, targetResolution.Width, targetResolution.Height);
GLES20.GlGenTextures(1, glObjs, 0);
renderTextureId = glObjs[0];;
GLES20.GlBindTexture(GLES20.GlTexture2d, renderTextureId);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapS, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureWrapT, GLES20.GlClampToEdge);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMinFilter, GLES20.GlNearest);
GLES20.GlTexParameteri(GLES20.GlTexture2d, GLES20.GlTextureMagFilter, GLES20.GlNearest);
GLES20.GlTexImage2D(GLES20.GlTexture2d, 0, GLES20.GlRgba, targetResolution.Width, targetResolution.Height, 0, GLES20.GlRgba, GLES20.GlUnsignedByte, null);
GLES20.GlBindTexture(GLES20.GlTexture2d, 0);
GLES20.GlFramebufferTexture2D(GLES20.GlFramebuffer, GLES20.GlColorAttachment0, GLES20.GlTexture2d, renderTextureId, 0);
GLES20.GlBindFramebuffer(GLES20.GlFramebuffer, 0);
GlUtil.CheckNoGLES2Error("Create render texture.");
// Create the texture and pass it to ARCore session to be filled during update().
backgroundRenderer.CreateOnGlThread(/*context=*/ this);
if (arSession != null)
{
arSession.SetCameraTextureName(BackgroundRenderer.TextureId);
}
// Prepare the other rendering objects.
try
{
virtualObject.CreateOnGlThread(/*context=*/ this, "andy.obj", "andy.png");
virtualObject.setMaterialProperties(0.0f, 3.5f, 1.0f, 6.0f);
virtualObjectShadow.CreateOnGlThread(/*context=*/ this,
"andy_shadow.obj", "andy_shadow.png");
virtualObjectShadow.SetBlendMode(ObjectRenderer.BlendMode.Shadow);
virtualObjectShadow.setMaterialProperties(1.0f, 0.0f, 0.0f, 1.0f);
}
catch (Java.IO.IOException e)
{
Log.Error(TAG, "Failed to read obj file");
}
try
{
planeRenderer.CreateOnGlThread(/*context=*/ this, "trigrid.png");
}
catch (Java.IO.IOException e)
{
Log.Error(TAG, "Failed to read plane texture");
}
pointCloudRenderer.CreateOnGlThread(/*context=*/ this);
}