tomius / lod Goto Github PK
View Code? Open in Web Editor NEWA simple OpenGL 2.1 game engine, written in C++.
License: MIT License
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Terrain does not show textures
The terrain seems to be loaded as expected, i collide with it( i can for example go up, as if i'm going up a hill).
But the textures are not applied to it, so it seems flat.
The files seem to be loaded correctly as i get no errors on the console, but if I remove the files from the textures folder, i get the correct file not found message from magick++ and the rendered result is the same.
I will keep looking around to see if i can find something more specific :)
Shader linking problems
I'm trying to run the latest version ( fd17337 ) and i'm getting this error at runtime.
Creating the OpenGL context: 249 ms
- Depth bits: 24
- Stencil bits: 0
- Anti-aliasing level: 0
- OpenGL version: 3.1
Initializing the skybox: 200 ms
Initializing the resources for the bloom effect: 13 ms
Initializing the terrain: 186 ms
Initializing the shadow maps: 1 ms
Initializing the trees: OpenGL failed to link the following shaders together: - tree_shadow.vert
- tree_shadow.frag
The error message:
Vertex and Fragment shader(s) were not successfully compiled before glLinkProgram() was called. Link failed.
Maybe those Shaders are from an older version?
Strage shadow coloration
Sometimes especially when the sun is low or I stand near a tree, shadows flicker like this:
When the sun is high enough and I stand in an open space, no artifacts occur.
Assertions on Release builds!
looking around in the oglwrap code i saw this line.
assert(glewInit() == GLEW_OK);
If the build is set on Release mode and NDEBUG is defined then assert will be compiled to a NOOP and glewinit() will not be called.
it should be safer to do:
GLenum err = glewInit();
ASSERT( GLEW_OK == err, "Error: %s\n", glewGetErrorString(err) );
Uhm now that I think about it, I should had reported this on the OGLWRAP page.
Small problem with ayumi shaders ( with fix )
I'm getting this error
Initializing the Ayumi: Compile failure in vertexshader 'ayumi_shadow.vert' :
Vertex shader failed to compile with the following errors:
ERROR: 0:8: error(#187) Cannot declare arrays of this qualifier: in 4-component vector of ivec4
ERROR: 0:9: error(#187) Cannot declare arrays of this qualifier: in 4-component vector of vec4
ERROR: 0:18: error(#143) Undeclared identifier: aBoneIDs
ERROR: 0:18: error(#145) Left of "[" is not of type array, matrix, or vector: aBoneIDs
ERROR: 0:18: error(#145) Left of "[" is not of type array, matrix, or vector: expression
ERROR: 0:18: error(#166) Integer expression required: []
ERROR: 0:18: error(#143) Undeclared identifier: aWeights
ERROR: 0:18: error(#145) Left of "[" is not of type array, matrix, or vector: aWeights
ERROR: 0:18: error(#145) Left of "[" is not of type array, matrix, or vector: expression
ERROR: error(#273) 9 compilation errors. No code generated
Now after reading for a while i found the fix.
Section 4.3.4 Inputs (GLSL 1.4) States.
Vertex shader input variables (or attributes) receive per-vertex data.
(...)They cannot be arrays or structures.
So changing the version from #140 to #150 Fixes the issue.
Pach follows
diff --git a/LoD b/LoD
index 8165121..e0ddc44 100755
Binary files a/LoD and b/LoD differ
diff --git a/shaders/ayumi.vert b/shaders/ayumi.vert
index 50b0742..9ce1881 100644
--- a/shaders/ayumi.vert
+++ b/shaders/ayumi.vert
@@ -1,4 +1,4 @@
-#version 140
+#version 150
// External macros
#define BONE_NUM
diff --git a/shaders/ayumi_shadow.vert b/shaders/ayumi_shadow.vert
index b7f72c2..dd2bd56 100644
--- a/shaders/ayumi_shadow.vert
+++ b/shaders/ayumi_shadow.vert
@@ -1,4 +1,4 @@
-#version 140
+#version 150
Segmentation fault in libsfml-window.so.2
When I try to run LoD master with oglwrap master, I get the following SIGSEGV:
$ optirun gdb ./LoD
GNU gdb (GDB) 7.6.1
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/kris/urandom/LoD/LoD...(no debugging symbols found)...done.
(gdb) r
Starting program: /home/kris/urandom/LoD/./LoD
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff716c3f4 in ?? () from /usr/lib/libsfml-window.so.2
(gdb) ba
#0 0x00007ffff716c3f4 in ?? () from /usr/lib/libsfml-window.so.2
#1 0x00007ffff716893d in ?? () from /usr/lib/libsfml-window.so.2
#2 0x00007ffff7168e87 in sf::GlResource::GlResource() () from /usr/lib/libsfml-window.so.2
#3 0x00007ffff716aaf3 in sf::Window::Window(sf::VideoMode, sf::String const&, unsigned int, sf::ContextSettings const&) () from /usr/lib/libsfml-window.so.2
#4 0x00000000004064cb in main ()
Versions of relevant packages and kernel:
$ yaourt -Q sfml
community/sfml 2.1-1
$ yaourt -Q bumblebee
community/bumblebee 3.2.1-3
$ yaourt -Q nvidia-utils
extra/nvidia-utils 325.15-1
$ uname -srvo
Linux 3.11.6-1-ice #1 SMP PREEMPT Tue Oct 22 11:00:59 MSK 2013 GNU/Linux
The same thing also happens when I try to run LoD on the Intel GPU of my laptop, so I believe it is not related to Optimus.
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