added automatic conversion from legacy entity angles/avelocity to

[xonotic/darkplaces.git] / r_shadow.c

diff --git a/r_shadow.c b/r_shadow.c
index 7d4abfda442387a01b7b7fcb65913e4c55d3da46..938f28e1e1943e8062b517d1a24edefbba614e2e 100644 (file)
--- a/r_shadow.c
+++ b/r_shadow.c
@@ -260,6 +260,7 @@ rtexturepool_t *r_shadow_filters_texturepool;
 cvar_t r_shadow_bumpscale_basetexture = {0, "r_shadow_bumpscale_basetexture", "0", "generate fake bumpmaps from diffuse textures at this bumpyness, try 4 to match tenebrae, higher values increase depth, requires r_restart to take effect"};
 cvar_t r_shadow_bumpscale_bumpmap = {0, "r_shadow_bumpscale_bumpmap", "4", "what magnitude to interpret _bump.tga textures as, higher values increase depth, requires r_restart to take effect"};
 cvar_t r_shadow_debuglight = {0, "r_shadow_debuglight", "-1", "renders only one light, for level design purposes or debugging"};
+cvar_t r_shadow_dot3 = {CVAR_SAVE, "r_shadow_dot3", "0", "enables use of (slow) per pixel lighting on GL1.3 hardware"};
 cvar_t r_shadow_usenormalmap = {CVAR_SAVE, "r_shadow_usenormalmap", "1", "enables use of directional shading on lights"};
 cvar_t r_shadow_gloss = {CVAR_SAVE, "r_shadow_gloss", "1", "0 disables gloss (specularity) rendering, 1 uses gloss if textures are found, 2 forces a flat metallic specular effect on everything without textures (similar to tenebrae)"};
 cvar_t r_shadow_gloss2intensity = {0, "r_shadow_gloss2intensity", "0.125", "how bright the forced flat gloss should look if r_shadow_gloss is 2"};
@@ -366,10 +367,11 @@ cachepic_t *r_editlights_sprnoshadowlight;
 cachepic_t *r_editlights_sprcubemaplight;
 cachepic_t *r_editlights_sprcubemapnoshadowlight;
 cachepic_t *r_editlights_sprselection;
+extern cvar_t gl_max_size;
 
 void R_Shadow_SetShadowMode(void)
 {
-       r_shadow_shadowmapmaxsize = bound(1, r_shadow_shadowmapping_maxsize.integer, 2048);
+       r_shadow_shadowmapmaxsize = bound(1, r_shadow_shadowmapping_maxsize.integer, gl_max_size.integer / 4);
        r_shadow_shadowmapvsdct = r_shadow_shadowmapping_vsdct.integer != 0;
        r_shadow_shadowmapfilterquality = r_shadow_shadowmapping_filterquality.integer;
        r_shadow_shadowmaptexturetype = r_shadow_shadowmapping_texturetype.integer;
@@ -660,6 +662,7 @@ void R_Shadow_Init(void)
 {
        Cvar_RegisterVariable(&r_shadow_bumpscale_basetexture);
        Cvar_RegisterVariable(&r_shadow_bumpscale_bumpmap);
+       Cvar_RegisterVariable(&r_shadow_dot3);
        Cvar_RegisterVariable(&r_shadow_usenormalmap);
        Cvar_RegisterVariable(&r_shadow_debuglight);
        Cvar_RegisterVariable(&r_shadow_gloss);
@@ -1691,6 +1694,7 @@ static void R_Shadow_MakeTextures(void)
        int x, y, z;
        float intensity, dist;
        unsigned int *data;
+       R_Shadow_FreeShadowMaps();
        R_FreeTexturePool(&r_shadow_texturepool);
        r_shadow_texturepool = R_AllocTexturePool();
        r_shadow_attenlinearscale = r_shadow_lightattenuationlinearscale.value;
@@ -1791,7 +1795,7 @@ void R_Shadow_RenderMode_Begin(void)
 
        if (r_glsl.integer && gl_support_fragment_shader)
                r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_GLSL;
-       else if (gl_dot3arb && gl_texturecubemap && r_textureunits.integer >= 2 && gl_combine.integer && gl_stencil)
+       else if (gl_dot3arb && gl_texturecubemap && r_shadow_dot3.integer && gl_stencil)
                r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_DOT3;
        else
                r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX;
@@ -2087,6 +2091,13 @@ init_done:
 
 void R_Shadow_RenderMode_Lighting(qboolean stenciltest, qboolean transparent, qboolean shadowmapping)
 {
+       if (transparent)
+       {
+               r_shadow_lightscissor[0] = r_refdef.view.viewport.x;
+               r_shadow_lightscissor[1] = r_refdef.view.viewport.y;
+               r_shadow_lightscissor[2] = r_refdef.view.viewport.width;
+               r_shadow_lightscissor[3] = r_refdef.view.viewport.height;
+       }
        CHECKGLERROR
        R_Shadow_RenderMode_Reset();
        GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
@@ -3291,7 +3302,7 @@ static void R_Shadow_RenderLighting_Light_Vertex(int firstvertex, int numvertice
                m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
                if (r_textureunits.integer >= 3)
                {
-                       // Voodoo4 or Kyro (or Geforce3/Radeon with gl_combine off)
+                       // Voodoo4 or Kyro (or Geforce3/Radeon with r_shadow_dot3 off)
                        m.tex[2] = R_GetTexture(r_shadow_attenuation2dtexture);
                        m.texmatrix[2] = rsurface.entitytoattenuationz;
                        m.pointer_texcoord3f[2] = rsurface.vertex3f;
@@ -4161,7 +4172,7 @@ void R_DrawRTLight(rtlight_t *rtlight, qboolean visible)
 
        lodlinear = (rtlight->radius * r_shadow_shadowmapping_precision.value) / sqrt(max(1.0f, distance/rtlight->radius));
        //lodlinear = (int)(r_shadow_shadowmapping_lod_bias.value + r_shadow_shadowmapping_lod_scale.value * rtlight->radius / max(1.0f, distance));
-       lodlinear = bound(r_shadow_shadowmapping_minsize.integer, lodlinear, r_shadow_shadowmapping_maxsize.integer);
+       lodlinear = bound(r_shadow_shadowmapping_minsize.integer, lodlinear, r_shadow_shadowmapmaxsize);
 
        if (castshadows && (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE))
        {
@@ -4175,11 +4186,11 @@ void R_DrawRTLight(rtlight_t *rtlight, qboolean visible)
 
                r_shadow_shadowmaplod = 0;
                for (i = 1;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++)
-                       if ((r_shadow_shadowmapping_maxsize.integer >> i) > lodlinear)
+                       if ((r_shadow_shadowmapmaxsize >> i) > lodlinear)
                                r_shadow_shadowmaplod = i;
 
-               size = r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE ? r_shadow_shadowmapping_maxsize.integer >> r_shadow_shadowmaplod : lodlinear;
-               size = bound(1, size, 2048);
+               size = r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE ? r_shadow_shadowmapmaxsize >> r_shadow_shadowmaplod : lodlinear;
+               size = bound(1, size, r_shadow_shadowmapmaxsize);
                borderbias = r_shadow_shadowmapborder / (float)(size - r_shadow_shadowmapborder);
 
                if (numsurfaces)
@@ -4325,7 +4336,7 @@ void R_ShadowVolumeLighting(qboolean visible)
        dlight_t *light;
        size_t range;
 
-       if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, 2048) || 
+       if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, gl_max_size.integer / 4) ||
                (r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL) != (r_shadow_shadowmapping.integer && r_glsl.integer && gl_support_fragment_shader && gl_support_ext_framebuffer_object) || 
                r_shadow_shadowmapvsdct != (r_shadow_shadowmapping_vsdct.integer != 0) || 
                r_shadow_shadowmaptexturetype != r_shadow_shadowmapping_texturetype.integer ||
@@ -4499,7 +4510,7 @@ void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
        float zdist;
        vec3_t centerorigin;
        // if it's too close, skip it
-       if (VectorLength(rtlight->color) < (1.0f / 256.0f))
+       if (VectorLength(rtlight->currentcolor) < (1.0f / 256.0f))
                return;
        zdist = (DotProduct(rtlight->shadoworigin, r_refdef.view.forward) - DotProduct(r_refdef.view.origin, r_refdef.view.forward));
        if (zdist < 32)
@@ -4548,7 +4559,7 @@ void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
                if (CL_TraceLine(r_refdef.view.origin, rtlight->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction < 1)
                        return;
        }
-       VectorScale(rtlight->color, cscale, color);
+       VectorScale(rtlight->currentcolor, cscale, color);
        if (VectorLength(color) > (1.0f / 256.0f))
                R_DrawSprite(GL_ONE, GL_ONE, r_shadow_lightcorona, NULL, true, false, rtlight->shadoworigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale, color[0], color[1], color[2], 1);
 }