added r_water_fbo cvar to enable fbo rendering of water by default

regardless of r_viewfbo

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11427 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=c8794d1a8f249133f880ec44919f2c2f4577d6e7

diff --git a/gl_rmain.c b/gl_rmain.c
index 6c3af4a7847ab01f2156fcd4b4f4489e54fbe085..6bd982bcc25552d91ef2016a79b05a6f5122fc78 100644 (file)
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -183,6 +183,7 @@ cvar_t r_water_reflectdistort = {CVAR_SAVE, "r_water_reflectdistort", "0.01", "h
 cvar_t r_water_scissormode = {0, "r_water_scissormode", "3", "scissor (1) or cull (2) or both (3) water renders"};
 cvar_t r_water_lowquality = {0, "r_water_lowquality", "0", "special option to accelerate water rendering, 1 disables shadows and particles, 2 disables all dynamic lights"};
 cvar_t r_water_hideplayer = {CVAR_SAVE, "r_water_hideplayer", "0", "if set to 1 then player will be hidden in refraction views, if set to 2 then player will also be hidden in reflection views, player is always visible in camera views"};
+cvar_t r_water_fbo = {CVAR_SAVE, "r_water_fbo", "1", "enables use of render to texture for water effects, otherwise copy to texture is used (slower)"};
 
 cvar_t r_lerpsprites = {CVAR_SAVE, "r_lerpsprites", "0", "enables animation smoothing on sprites"};
 cvar_t r_lerpmodels = {CVAR_SAVE, "r_lerpmodels", "1", "enables animation smoothing on models"};
@@ -4298,6 +4299,7 @@ void GL_Main_Init(void)
        Cvar_RegisterVariable(&r_water_scissormode);
        Cvar_RegisterVariable(&r_water_lowquality);
        Cvar_RegisterVariable(&r_water_hideplayer);
+       Cvar_RegisterVariable(&r_water_fbo);
 
        Cvar_RegisterVariable(&r_lerpsprites);
        Cvar_RegisterVariable(&r_lerpmodels);
@@ -5766,7 +5768,7 @@ static void R_Water_ProcessPlanes(int fbo, rtexture_t *depthtexture, rtexture_t
                                p->texture_refraction = R_LoadTexture2D(r_main_texturepool, va("waterplane%i_refraction", planeindex), r_fb.water.texturewidth, r_fb.water.textureheight, NULL, r_fb.textype, TEXF_RENDERTARGET | TEXF_FORCELINEAR | TEXF_CLAMP, -1, NULL);
                        if (!p->texture_refraction)
                                goto error;
-                       if (r_viewfbo.integer >= 1 && vid.support.ext_framebuffer_object)
+                       if (r_water_fbo.integer >= 1 && vid.support.ext_framebuffer_object)
                        {
                                if (r_fb.water.depthtexture == NULL)
                                        r_fb.water.depthtexture = R_LoadTextureShadowMap2D(r_main_texturepool, "waterviewdepth", r_fb.water.texturewidth, r_fb.water.textureheight, 24, false);
@@ -5780,7 +5782,7 @@ static void R_Water_ProcessPlanes(int fbo, rtexture_t *depthtexture, rtexture_t
                                p->texture_camera = R_LoadTexture2D(r_main_texturepool, va("waterplane%i_camera", planeindex), r_fb.water.camerawidth, r_fb.water.cameraheight, NULL, r_fb.textype, TEXF_RENDERTARGET | TEXF_FORCELINEAR, -1, NULL);
                        if (!p->texture_camera)
                                goto error;
-                       if (r_viewfbo.integer >= 1 && vid.support.ext_framebuffer_object)
+                       if (r_water_fbo.integer >= 1 && vid.support.ext_framebuffer_object)
                        {
                                if (r_fb.water.depthtexture == NULL)
                                        r_fb.water.depthtexture = R_LoadTextureShadowMap2D(r_main_texturepool, "waterviewdepth", r_fb.water.texturewidth, r_fb.water.textureheight, 24, false);
@@ -5795,7 +5797,7 @@ static void R_Water_ProcessPlanes(int fbo, rtexture_t *depthtexture, rtexture_t
                                p->texture_reflection = R_LoadTexture2D(r_main_texturepool, va("waterplane%i_reflection", planeindex), r_fb.water.texturewidth, r_fb.water.textureheight, NULL, r_fb.textype, TEXF_RENDERTARGET | TEXF_FORCELINEAR | TEXF_CLAMP, -1, NULL);
                        if (!p->texture_reflection)
                                goto error;
-                       if (r_viewfbo.integer >= 1 && vid.support.ext_framebuffer_object)
+                       if (r_water_fbo.integer >= 1 && vid.support.ext_framebuffer_object)
                        {
                                if (r_fb.water.depthtexture == NULL)
                                        r_fb.water.depthtexture = R_LoadTextureShadowMap2D(r_main_texturepool, "waterviewdepth", r_fb.water.texturewidth, r_fb.water.textureheight, 24, false);