OpenGL snippets - Revision history

Vegard: add link

2020-02-25T14:48:05Z

add link

← Older revision		Revision as of 14:48, 25 February 2020
Line 69:		Line 69:

	The error handling leaves something to be desired for now.		The error handling leaves something to be desired for now.

			== See also ==

			* [[GLSL snippets]]

	[[Category:Graphics programming]]		[[Category:Graphics programming]]

Vegard: Vegard moved page OpenGL to OpenGL snippets

2020-02-25T14:47:27Z

Vegard moved page OpenGL to OpenGL snippets

← Older revision		Revision as of 14:47, 25 February 2020
(No difference)

Vegard: /* C++/libpng */

2019-12-30T22:49:12Z

C++/libpng

← Older revision		Revision as of 22:49, 30 December 2019
Line 35:		Line 35:

	glReadnPixels(0, 0, buffer_width, height,		glReadnPixels(0, 0, buffer_width, height,
	GL_RGB, GL_UNSIGNED_BYTE, buffer_size, (void *) buffer);		GL_RGB, GL_UNSIGNED_BYTE, buffer_size, (void *) buffer.get());

	FILE *fp = fopen("output.png", "wb");		FILE *fp = fopen("output.png", "wb");

Vegard: C++/libpng

2019-12-30T21:51:04Z

C++/libpng

@@ Line 3: / Line 3: @@
 == Saving the framebuffer to file ==
-=== Python ===
+=== Python/PIL ===
 <source lang="Python">
@@ Line 15: / Line 15: @@
 Note: This should work for any file type/extension that PIL supports.
 [[Category:Graphics programming]]

Vegard: /* Saving the framebuffer */

2019-12-18T19:04:48Z

Saving the framebuffer

← Older revision		Revision as of 19:04, 18 December 2019
Line 1:		Line 1:
	__TOC__		__TOC__

	== Saving the framebuffer ==		== Saving the framebuffer to file ==

	=== Python ===		=== Python ===

Vegard: new page

2019-12-18T19:02:18Z

new page

New page

__TOC__

== Saving the framebuffer ==

=== Python ===

<source lang="Python">
from PIL import Image

pixels = glReadPixels(0, 0, window_width, window_height, GL_RGB, GL_UNSIGNED_BYTE)
image = Image.frombytes(mode="RGB", size=(window_width, window_height), data=pixels)
image = image.transpose(Image.FLIP_TOP_BOTTOM)
image.save('output.png')
</source>

Note: This should work for any file type/extension that PIL supports.

[[Category:Graphics programming]]