public void AttachColorTexture(int index, DeviceTexture2D texture)
{
Bind();
Debug.Assert(texture is OpenGLESTexture2D);
OpenGLESTexture2D glTex = (OpenGLESTexture2D)texture;
_colorTextures[index] = glTex;
GL.ActiveTexture(TextureUnit.Texture0);
Utilities.CheckLastGLES3Error();
glTex.Bind();
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.ColorAttachment0,
TextureTarget2d.Texture2D,
glTex.ID,
0);
GL.BindTexture(TextureTarget.Texture2D, 0);
Utilities.CheckLastGLES3Error();
DrawBufferMode mode = DrawBufferMode.ColorAttachment0 + index;
GL.DrawBuffers(1, ref mode);
Utilities.CheckLastGLES3Error();
Unbind();
}
private void AttachDepthTexture()
{
Bind();
int depthTextureID;
if (_depthTexture != null)
{
_depthTexture.Bind();
depthTextureID = _depthTexture.ID;
}
else
{
depthTextureID = 0;
}
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.DepthAttachment,
TextureTarget2d.Texture2D,
depthTextureID,
0);
Unbind();
}