From: divverent Date: Tue, 29 Jan 2008 08:07:48 +0000 (+0000) Subject: fix bug in skybox render + r_glsl_usegeneric + fog; add gamma to postprocessing shader X-Git-Tag: xonotic-v0.1.0preview~2477 X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=941f1a240b5b55a93e786f8ad22399b95c51aaf2;p=xonotic%2Fdarkplaces.git fix bug in skybox render + r_glsl_usegeneric + fog; add gamma to postprocessing shader git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@8037 d7cf8633-e32d-0410-b094-e92efae38249 --- diff --git a/gl_rmain.c b/gl_rmain.c index b3e82aad..a2f28707 100644 --- a/gl_rmain.c +++ b/gl_rmain.c @@ -83,6 +83,7 @@ cvar_t r_glsl_offsetmapping_reliefmapping = {CVAR_SAVE, "r_glsl_offsetmapping_re cvar_t r_glsl_offsetmapping_scale = {CVAR_SAVE, "r_glsl_offsetmapping_scale", "0.04", "how deep the offset mapping effect is"}; cvar_t r_glsl_postprocess = {CVAR_SAVE, "r_glsl_postprocess", "0", "use a GLSL postprocessing shader"}; cvar_t r_glsl_postprocess_contrastboost = {CVAR_SAVE, "r_glsl_postprocess_contrastboost", "1", "brightening effect (1 is no change, higher values brighten the view)"}; +cvar_t r_glsl_postprocess_gamma = {CVAR_SAVE, "r_glsl_postprocess_gamma", "1", "inverse gamma correction value, a brightness effect that does not affect white or black, and tends to make the image grey and dull"}; cvar_t r_glsl_usegeneric = {CVAR_SAVE, "r_glsl_usegeneric", "1", "use shaders for rendering simple geometry (rather than conventional fixed-function rendering for this purpose)"}; cvar_t r_water = {CVAR_SAVE, "r_water", "0", "whether to use reflections and refraction on water surfaces (note: r_wateralpha must be set below 1)"}; @@ -497,6 +498,9 @@ static const char *builtinshaderstring = "#ifdef USECONTRASTBOOST\n" "uniform float ContrastBoostCoeff;\n" "#endif\n" +"#ifdef USEGAMMA\n" +"uniform float GammaCoeff;\n" +"#endif\n" "void main(void)\n" "{\n" " gl_FragColor = texture2D(Texture_First, gl_TexCoord[0].xy);\n" @@ -507,6 +511,9 @@ static const char *builtinshaderstring = " gl_FragColor.rgb /= (ContrastBoostCoeff * gl_FragColor.rgb + vec3(1.0, 1.0, 1.0));\n" " gl_FragColor.rgb *= (ContrastBoostCoeff + 1.0);\n" "#endif\n" +"#ifdef USEGAMMA\n" +" gl_FragColor.rgb = pow(gl_FragColor.rgb, GammaCoeff);\n" +"#endif\n" "#ifdef USEVERTEXTEXTUREBLEND\n" " gl_FragColor = mix(TintColor, gl_FragColor, TintColor.a);\n" "#endif\n" @@ -1069,8 +1076,9 @@ typedef enum shaderpermutation_e SHADERPERMUTATION_REFLECTION = 1<<8, // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface SHADERPERMUTATION_OFFSETMAPPING = 1<<9, // adjust texcoords to roughly simulate a displacement mapped surface SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING = 1<<10, // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!) - SHADERPERMUTATION_LIMIT = 1<<11, // size of permutations array - SHADERPERMUTATION_COUNT = 11 // size of shaderpermutationinfo array + SHADERPERMUTATION_GAMMA = 1<<11, // gamma (postprocessing only) + SHADERPERMUTATION_LIMIT = 1<<12, // size of permutations array + SHADERPERMUTATION_COUNT = 12 // size of shaderpermutationinfo array } shaderpermutation_t; @@ -1088,6 +1096,7 @@ shaderpermutationinfo_t shaderpermutationinfo[SHADERPERMUTATION_COUNT] = {"#define USEREFLECTION\n", " reflection"}, {"#define USEOFFSETMAPPING\n", " offsetmapping"}, {"#define USEOFFSETMAPPING_RELIEFMAPPING\n", " reliefmapping"}, + {"#define USEGAMMA\n", " gamma"}, }; // this enum is multiplied by SHADERPERMUTATION_MODEBASE @@ -1171,6 +1180,7 @@ typedef struct r_glsl_permutation_s int loc_SpecularColor; int loc_LightDir; int loc_ContrastBoostCoeff; // 1 - 1/ContrastBoost + int loc_GammaCoeff; // 1 / gamma int loc_DistortScaleRefractReflect; int loc_ScreenScaleRefractReflect; int loc_ScreenCenterRefractReflect; @@ -2247,6 +2257,7 @@ void GL_Main_Init(void) Cvar_RegisterVariable(&r_glsl_offsetmapping_scale); Cvar_RegisterVariable(&r_glsl_postprocess); Cvar_RegisterVariable(&r_glsl_postprocess_contrastboost); + Cvar_RegisterVariable(&r_glsl_postprocess_gamma); Cvar_RegisterVariable(&r_glsl_usegeneric); Cvar_RegisterVariable(&r_water); Cvar_RegisterVariable(&r_water_resolutionmultiplier); @@ -3334,7 +3345,13 @@ static void R_BlendView(void) if (r_glsl.integer && gl_support_fragment_shader && (r_bloomstate.texture_screen || r_bloomstate.texture_bloom)) { - unsigned int permutation = (r_bloomstate.texture_bloom ? SHADERPERMUTATION_GLOW : 0) | (r_refdef.viewblend[3] > 0 ? SHADERPERMUTATION_VERTEXTEXTUREBLEND : 0) | (r_glsl_postprocess_contrastboost.value != 1 ? SHADERPERMUTATION_CONTRASTBOOST : 0); + unsigned int permutation = + (r_bloomstate.texture_bloom ? SHADERPERMUTATION_GLOW : 0) + | (r_refdef.viewblend[3] > 0 ? SHADERPERMUTATION_VERTEXTEXTUREBLEND : 0); + if(r_glsl_postprocess.value) + permutation |= + (r_glsl_postprocess_contrastboost.value != 1 ? SHADERPERMUTATION_CONTRASTBOOST : 0) + | (r_glsl_postprocess_gamma.value != 1 ? SHADERPERMUTATION_GAMMA : 0); if (r_bloomstate.texture_bloom && !r_bloomstate.hdr) { @@ -3359,6 +3376,8 @@ static void R_BlendView(void) qglUniform4fARB(r_glsl_permutation->loc_TintColor, r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]); if (r_glsl_permutation->loc_ContrastBoostCoeff >= 0) qglUniform1fARB(r_glsl_permutation->loc_ContrastBoostCoeff, r_glsl_postprocess_contrastboost.value - 1); + if (r_glsl_permutation->loc_GammaCoeff >= 0) + qglUniform1fARB(r_glsl_permutation->loc_GammaCoeff, 1 / r_glsl_postprocess_gamma.value); R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0); r_refdef.stats.bloom_drawpixels += r_refdef.view.width * r_refdef.view.height; return; diff --git a/r_sky.c b/r_sky.c index c771a315..63df9efb 100644 --- a/r_sky.c +++ b/r_sky.c @@ -290,6 +290,7 @@ static void R_SkyBox(void) if(r_refdef.fogenabled) { + R_SetupGenericShader(false); GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); GL_Color(r_refdef.fogcolor[0], r_refdef.fogcolor[1], r_refdef.fogcolor[2], 1 - r_refdef.fogmasktable[FOGMASKTABLEWIDTH-1]); for (i = 0;i < 6;i++)