From 0fe5e8ce16bf03a06a4d76cc4a7182c2a6294350 Mon Sep 17 00:00:00 2001
From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Tue, 29 Oct 2002 18:31:12 +0000
Subject: [PATCH] bumpscale is now adjustable (r_shadow_bumpscale) for
 experimenting (it's not saved to config) .lights loading now has the correct
 light intensity torchs now spawn lights above their location so the shadow is
 cast down, not up

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@2583 d7cf8633-e32d-0410-b094-e92efae38249
---
 image.c    |  3 ++-
 r_shadow.c | 36 +++++++++++++++++++++++++++++++++---
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/image.c b/image.c
index 0ce0886a..13120cee 100644
--- a/image.c
+++ b/image.c
@@ -1288,6 +1288,7 @@ void Image_MipReduce(const qbyte *in, qbyte *out, int *width, int *height, int *
 	}
 }
 
+extern cvar_t r_shadow_bumpscale;
 void Image_HeightmapToNormalmap(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale)
 {
 	int x, y;
@@ -1296,7 +1297,7 @@ void Image_HeightmapToNormalmap(const unsigned char *inpixels, unsigned char *ou
 	float iwidth, iheight, ibumpscale, n[3];
 	iwidth = 1.0f / width;
 	iheight = 1.0f / height;
-	ibumpscale = (255.0f * 3.0f) / (bumpscale * 8.0f);
+	ibumpscale = (255.0f * 3.0f) / (bumpscale * r_shadow_bumpscale.value);
 	out = outpixels;
 	for (y = 0;y < height;y++)
 	{
diff --git a/r_shadow.c b/r_shadow.c
index 932b63c9..a438837a 100644
--- a/r_shadow.c
+++ b/r_shadow.c
@@ -38,6 +38,7 @@ cvar_t r_shadow_texture3d = {0, "r_shadow_texture3d", "0"};
 cvar_t r_shadow_gloss = {0, "r_shadow_gloss", "1"};
 cvar_t r_shadow_debuglight = {0, "r_shadow_debuglight", "-1"};
 cvar_t r_shadow_scissor = {0, "r_shadow_scissor", "1"};
+cvar_t r_shadow_bumpscale = {0, "r_shadow_bumpscale", "4"};
 
 void R_Shadow_ClearWorldLights(void);
 void R_Shadow_SaveWorldLights(void);
@@ -98,6 +99,7 @@ void R_Shadow_Init(void)
 	Cvar_RegisterVariable(&r_shadow_debuglight);
 	Cvar_RegisterVariable(&r_shadow_erasebydrawing);
 	Cvar_RegisterVariable(&r_shadow_scissor);
+	Cvar_RegisterVariable(&r_shadow_bumpscale);
 	R_Shadow_EditLights_Init();
 	R_RegisterModule("R_Shadow", r_shadow_start, r_shadow_shutdown, r_shadow_newmap);
 }
@@ -1524,9 +1526,9 @@ void R_Shadow_LoadLightsFile(void)
 				Con_Printf("invalid lights file, found %d parameters on line %i, should be 14 parameters (origin[0] origin[1] origin[2] falloff light[0] light[1] light[2] subtract spotdir[0] spotdir[1] spotdir[2] spotcone distancebias style)\n", a, n + 1);
 				break;
 			}
-			radius = sqrt(DotProduct(color, color) / (falloff * falloff * 16384.0f * 16384.0f));
+			radius = sqrt(DotProduct(color, color) / (falloff * falloff * 8192.0f * 8192.0f));
 			radius = bound(15, radius, 4096);
-			VectorScale(color, (1.0f / 32768.0f), color);
+			VectorScale(color, (1.0f / (8388608.0f)), color);
 			R_Shadow_NewWorldLight(origin, radius, color, style, NULL);
 			s++;
 			n++;
@@ -1541,7 +1543,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
 {
 	int entnum, style, islight;
 	char key[256], value[1024];
-	float origin[3], radius, color[3], light, scale;
+	float origin[3], radius, color[3], light, scale, originhack[3];
 	const char *data;
 
 	data = cl.worldmodel->entities;
@@ -1551,6 +1553,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
 	{
 		light = 0;
 		origin[0] = origin[1] = origin[2] = 0;
+		originhack[0] = originhack[1] = originhack[2] = 0;
 		color[0] = color[1] = color[2] = 1;
 		scale = 1;
 		style = 0;
@@ -1583,7 +1586,33 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
 			else if (!strcmp("classname", key))
 			{
 				if (!strncmp(value, "light", 5))
+				{
 					islight = true;
+					if (!strcmp(value, "light_flame_large_yellow"))
+					{
+						originhack[0] = 0;
+						originhack[1] = 0;
+						originhack[2] = 40;
+					}
+					if (!strcmp(value, "light_flame_small_yellow"))
+					{
+						originhack[0] = 0;
+						originhack[1] = 0;
+						originhack[2] = 40;
+					}
+					if (!strcmp(value, "light_torch_small_white"))
+					{
+						originhack[0] = 0;
+						originhack[1] = 0;
+						originhack[2] = 40;
+					}
+					if (!strcmp(value, "light_torch_small_walltorch"))
+					{
+						originhack[0] = 0;
+						originhack[1] = 0;
+						originhack[2] = 40;
+					}
+				}
 			}
 			else if (!strcmp("style", key))
 				style = atoi(value);
@@ -1593,6 +1622,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
 		radius = bound(0, light / scale, 1048576) + 15.0f;
 		light = bound(0, light, 1048576) * (1.0f / 256.0f);
 		VectorScale(color, light, color);
+		VectorAdd(origin, originhack, origin);
 		if (radius >= 15)
 			R_Shadow_NewWorldLight(origin, radius, color, style, NULL);
 	}
-- 
2.39.2