Hi,
Issue is visible on Intel Gfx, since GPU Caps Viewer 1.39.
It used to work up to 1.38.2.1, and there is no issue on NVidia Gfx.
It happens both on old drivers and new.
To reproduce it:
1. Launch GPU Caps Viewer 1.39 or 1.40 on Intel.
2. Open 3D demos
3. From GeeXLab demos choose "OpenGL - Tessellation v1" and click start.
Result: Torus is shown correctly, but no logos and text is rendered.
It looks like demo issue. I captured apitrace on NVidia and rendered it correctly on Intel.
Looking at scripts, I noticed an error in file:
"GPU_Caps_Viewer_1.40.0.0\GPU_Caps_Viewer\gxldemos\libs\lua\framework_v1\kx_gl.lua"
It is:
local vs = ""
local ps = ""
if (gh_renderer.is_opengl_es() == 1) then
vs = vs_gles2
ps = ps_gles2
else
if (gh_renderer.get_api_version_major() < 3) then
vs = vs_gl2
ps = ps_gl2
else
if (gh_renderer.get_api_version_major() == 3) then
if (gh_renderer.get_api_version_minor() < 2) then
vs = vs_gl30
ps = ps_gl30
else
vs = vs_gl32
ps = ps_gl32
end
end
if (gh_renderer.get_api_version_minor() > 3) then
vs = vs_gl32
ps = ps_gl32
end
// Dorian note: What about 4.0, 4.1, 4.2, 4.3 ??
end
endI think it should be simpler:
local vs = ""
local ps = ""
if (gh_renderer.is_opengl_es() == 1) then
vs = vs_gles2
ps = ps_gles2
else
if (gh_renderer.get_api_version_major() < 3) then
vs = vs_gl2
ps = ps_gl2
else
if (gh_renderer.get_api_version_major() == 3 and
gh_renderer.get_api_version_minor() < 2) then
vs = vs_gl30
ps = ps_gl30
else
vs = vs_gl32
ps = ps_gl32
end
end
end
This enables text.
Searching in apitrace I see that wglCreateContextAttribsARB is called with context 4.0.
Why it works on NVidia? I guess you get context 4.6 on NVidia when you request for 4.0.
It also shows another issue of OpenGL logo rotated and centered in viewport - I haven't looked into it yet.
