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Remove hacks for ancient video cards

pull/110/head
Hleb Valoshka 2018-09-26 11:47:19 +03:00
parent 2ef2df3b80
commit 451ecfd12e
1 changed files with 0 additions and 54 deletions
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54
src/celengine/render.cpp
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@ -192,8 +192,6 @@ static const Color compassColor(0.4f, 0.4f, 1.0f);
static const float CoronaHeight = 0.2f;
static bool buggyVertexProgramEmulation = true;
static const int MaxSkyRings = 32;
static const int MaxSkySlices = 180;
static const int MinSkySlices = 30;
@ -1195,58 +1193,6 @@ bool Renderer::init(GLContext* _context,
glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL_EXT, GL_SEPARATE_SPECULAR_COLOR_EXT);
}
// Ugly renderer-specific bug workarounds follow . . .
auto* glRenderer = (char*) glGetString(GL_RENDERER);
if (glRenderer != nullptr)
{
// Fog is broken with vertex program emulation in most versions of
// the GF 1 and 2 drivers; we need to detect this and disable
// vertex programs which output fog coordinates
if (strstr(glRenderer, "GeForce3") != nullptr ||
strstr(glRenderer, "GeForce4") != nullptr)
{
buggyVertexProgramEmulation = false;
}
if (strstr(glRenderer, "Savage4") != nullptr ||
strstr(glRenderer, "ProSavage") != nullptr)
{
// S3 Savage4 drivers appear to rescale normals without reporting
// EXT_rescale_normal. Lighting will be messed up unless
// we set the useRescaleNormal flag.
useRescaleNormal = true;
}
#ifdef TARGET_OS_MAC
if (strstr(glRenderer, "ATI") != nullptr ||
strstr(glRenderer, "GMA 900") != nullptr)
{
// Some drivers on the Mac appear to limit point sprite size.
// This causes an abrupt size transition when going from billboards
// to sprites. Rather than incur overhead accounting for the size limit,
// do not use sprites on these renderers.
// Affected cards: ATI (various), etc
// Renderer strings are not unique.
usePointSprite = false;
}
#endif
}
// More ugly hacks; according to Matt Craighead at NVIDIA, an NVIDIA
// OpenGL driver that reports version 1.3.1 or greater will have working
// fog in emulated vertex programs.
auto* glVersion = (char*) glGetString(GL_VERSION);
if (glVersion != nullptr)
{
int major = 0, minor = 0, extra = 0;
int nScanned = sscanf(glVersion, "%d.%d.%d", &major, &minor, &extra);
if (nScanned >= 2)
{
if (major > 1 || minor > 3 || (minor == 3 && extra >= 1))
buggyVertexProgramEmulation = false;
}
}
#ifdef USE_HDR
useBlendSubtract = GLEW_EXT_blend_subtract;
Image *testImg = new Image(GL_LUMINANCE_ALPHA, 1, 1);