Stellarium ist extrem langsam

[h_c_greier]

Mesa ist eine OpenGL Grafikbibliothek. Ich vermute mal, dass die Mesaversion von Stellarium damit OpenGL emuliert und das dass dann sehr langsam wird.

Genau so ist es. Ich habe jetzt das hier gefunden, was endlich mal für Nicht-Experten halbwegs erklärt, was diese Modi sind.

MESA-Modus
ANGLE-Modus

Weiter unten bei v0.13, OpenGL issues, schreiben sie:
For systems without hardware capable of supporting OpenGL2.1 with GLSL1.30 or DirectX/ps_3_0, we provide a Windows 32 build that includes the MESA software OpenGL library (providing the required minimum of OpenGL2.1 and GLSL1.30) as optional item to be selected during installation. MESA totally circumvents the GPU, all graphics is rendered with the CPU (Central Processing Unit; this is the device referred to as "Pentium", "Celeron", "Athlon", "Xeon", "Core i5", "Atom", etc.) only. Of course, this lack of dedicated hardware means a severe slowdown, but a slow system with good graphics may still be preferrable to a dysfunctional one. MESA can make use of multicore CPUs, so if you have e.g. an older multicore CPU system with only Intel GMA graphics, performance may still be OK.

Naja. cs,
hc

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