public void AttachColorTexture(int index, DeviceTexture2D texture)
{
Bind();
Debug.Assert(texture is OpenGLTexture2D);
OpenGLTexture2D glTex = (OpenGLTexture2D)texture;
_colorTextures[index] = glTex;
GL.ActiveTexture(TextureUnit.Texture0);
glTex.Bind();
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.ColorAttachment0,
TextureTarget.Texture2D,
glTex.ID,
0);
GL.BindTexture(TextureTarget.Texture2D, 0);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0 + index);
Unbind();
}
public void AttachColorTexture(int index, DeviceTexture2D texture)
{
Bind();
Debug.Assert(texture is OpenGLTexture2D);
OpenGLTexture2D glTex = (OpenGLTexture2D)texture;
_colorTextures[index] = glTex;
GL.ActiveTexture(TextureUnit.Texture0);
glTex.Bind();
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.ColorAttachment0 + index,
TextureTarget.Texture2D,
glTex.ID,
0);
GL.BindTexture(TextureTarget.Texture2D, 0);
// TODO: I'm pretty sure this is supposed to be using glDrawBuffers (plural).
GL.DrawBuffer(DrawBufferMode.ColorAttachment0 + index);
Unbind();
}
public static OpenGLTexture2D Create <T>(T[] pixelData, int width, int height, int pixelSizeInBytes, PixelFormat format) where T : struct
{
var internalFormat = OpenGLFormats.MapPixelInternalFormat(format);
var pixelFormat = OpenGLFormats.MapPixelFormat(format);
var pixelType = OpenGLFormats.MapPixelType(format);
OpenGLTexture2D texture = new OpenGLTexture2D(
width,
height,
format,
internalFormat,
pixelFormat,
pixelType);
texture.Bind();
GL.TexImage2D(TextureTarget.Texture2D, 0, internalFormat, width, height, 0, pixelFormat, pixelType, pixelData);
GL.BindTexture(TextureTarget.Texture2D, 0);
return(texture);
}
private void AttachDepthTexture()
{
Bind();
int depthTextureID;
if (_depthTexture != null)
{
_depthTexture.Bind();
depthTextureID = _depthTexture.ID;
}
else
{
depthTextureID = 0;
}
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferAttachment.DepthAttachment,
TextureTarget.Texture2D,
depthTextureID,
0);
Unbind();
}
