X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=r_lightning.c;h=7226b8a1381512aaf1a031155f851977c6756fe6;hb=d159736a199e4043ed98cde48f6d5716ec40845c;hp=74b397bb4b7a8401c5bd52d8fdc5ae47f15f4994;hpb=8b554980f64dffdba3e87209cdc5ab49c4741eca;p=xonotic%2Fdarkplaces.git

diff --git a/r_lightning.c b/r_lightning.c
index 74b397bb..7226b8a1 100644
--- a/r_lightning.c
+++ b/r_lightning.c
@@ -2,13 +2,13 @@
 #include "quakedef.h"
 #include "image.h"
 
-cvar_t r_lightningbeam_thickness = {CVAR_SAVE, "r_lightningbeam_thickness", "4"};
-cvar_t r_lightningbeam_scroll = {CVAR_SAVE, "r_lightningbeam_scroll", "5"};
-cvar_t r_lightningbeam_repeatdistance = {CVAR_SAVE, "r_lightningbeam_repeatdistance", "128"};
-cvar_t r_lightningbeam_color_red = {CVAR_SAVE, "r_lightningbeam_color_red", "1"};
-cvar_t r_lightningbeam_color_green = {CVAR_SAVE, "r_lightningbeam_color_green", "1"};
-cvar_t r_lightningbeam_color_blue = {CVAR_SAVE, "r_lightningbeam_color_blue", "1"};
-cvar_t r_lightningbeam_qmbtexture = {CVAR_SAVE, "r_lightningbeam_qmbtexture", "0"};
+cvar_t r_lightningbeam_thickness = {CVAR_SAVE, "r_lightningbeam_thickness", "4", "thickness of the lightning beam effect"};
+cvar_t r_lightningbeam_scroll = {CVAR_SAVE, "r_lightningbeam_scroll", "5", "speed of texture scrolling on the lightning beam effect"};
+cvar_t r_lightningbeam_repeatdistance = {CVAR_SAVE, "r_lightningbeam_repeatdistance", "128", "how far to stretch the texture along the lightning beam effect"};
+cvar_t r_lightningbeam_color_red = {CVAR_SAVE, "r_lightningbeam_color_red", "1", "color of the lightning beam effect"};
+cvar_t r_lightningbeam_color_green = {CVAR_SAVE, "r_lightningbeam_color_green", "1", "color of the lightning beam effect"};
+cvar_t r_lightningbeam_color_blue = {CVAR_SAVE, "r_lightningbeam_color_blue", "1", "color of the lightning beam effect"};
+cvar_t r_lightningbeam_qmbtexture = {CVAR_SAVE, "r_lightningbeam_qmbtexture", "0", "load the qmb textures/particles/lightning.pcx texture instead of generating one, can look better"};
 
 rtexture_t *r_lightningbeamtexture;
 rtexture_t *r_lightningbeamqmbtexture;
@@ -38,12 +38,16 @@ void r_lightningbeams_setuptexture(void)
 #define PATHPOINTS 8
 	int i, j, px, py, nearestpathindex, imagenumber;
 	float particlex, particley, particlexv, particleyv, dx, dy, s, maxpathstrength;
-	qbyte *pixels;
+	unsigned char *pixels;
 	int *image;
-	struct {float x, y, strength;} path[PATHPOINTS], temppath;
+	struct lightningpathnode_s
+	{
+		float x, y, strength;
+	}
+	path[PATHPOINTS], temppath;
 
 	image = Mem_Alloc(tempmempool, BEAMWIDTH * BEAMHEIGHT * sizeof(int));
-	pixels = Mem_Alloc(tempmempool, BEAMWIDTH * BEAMHEIGHT * sizeof(qbyte[4]));
+	pixels = Mem_Alloc(tempmempool, BEAMWIDTH * BEAMHEIGHT * sizeof(unsigned char[4]));
 
 	for (imagenumber = 0, maxpathstrength = 0.0339476;maxpathstrength < 0.5;imagenumber++, maxpathstrength += 0.01)
 	{
@@ -112,11 +116,11 @@ void r_lightningbeams_setuptexture(void)
 #define BEAMHEIGHT 128
 	float r, g, b, intensity, fx, width, center;
 	int x, y;
-	qbyte *data, *noise1, *noise2;
+	unsigned char *data, *noise1, *noise2;
 
-	data = Mem_Alloc(tempmempool, BEAMWIDTH * BEAMHEIGHT * 4);
-	noise1 = Mem_Alloc(tempmempool, BEAMHEIGHT * BEAMHEIGHT);
-	noise2 = Mem_Alloc(tempmempool, BEAMHEIGHT * BEAMHEIGHT);
+	data = (unsigned char *)Mem_Alloc(tempmempool, BEAMWIDTH * BEAMHEIGHT * 4);
+	noise1 = (unsigned char *)Mem_Alloc(tempmempool, BEAMHEIGHT * BEAMHEIGHT);
+	noise2 = (unsigned char *)Mem_Alloc(tempmempool, BEAMHEIGHT * BEAMHEIGHT);
 	fractalnoise(noise1, BEAMHEIGHT, BEAMHEIGHT / 8);
 	fractalnoise(noise2, BEAMHEIGHT, BEAMHEIGHT / 16);
 
@@ -134,10 +138,10 @@ void r_lightningbeams_setuptexture(void)
 			r = intensity * 1.0f;
 			g = intensity * 1.0f;
 			b = intensity * 1.0f;
-			data[(y * BEAMWIDTH + x) * 4 + 0] = (qbyte)(bound(0, r, 1) * 255.0f);
-			data[(y * BEAMWIDTH + x) * 4 + 1] = (qbyte)(bound(0, g, 1) * 255.0f);
-			data[(y * BEAMWIDTH + x) * 4 + 2] = (qbyte)(bound(0, b, 1) * 255.0f);
-			data[(y * BEAMWIDTH + x) * 4 + 3] = (qbyte)255;
+			data[(y * BEAMWIDTH + x) * 4 + 0] = (unsigned char)(bound(0, r, 1) * 255.0f);
+			data[(y * BEAMWIDTH + x) * 4 + 1] = (unsigned char)(bound(0, g, 1) * 255.0f);
+			data[(y * BEAMWIDTH + x) * 4 + 2] = (unsigned char)(bound(0, b, 1) * 255.0f);
+			data[(y * BEAMWIDTH + x) * 4 + 3] = (unsigned char)255;
 		}
 	}
 
@@ -212,12 +216,10 @@ void R_CalcLightningBeamPolygonTexCoord2f(float *tc, float t1, float t2)
 void R_FogLightningBeam_Vertex3f_Color4f(const float *v, float *c, int numverts, float r, float g, float b, float a)
 {
 	int i;
-	vec3_t fogvec;
 	float ifog;
 	for (i = 0;i < numverts;i++, v += 3, c += 4)
 	{
-		VectorSubtract(v, r_vieworigin, fogvec);
-		ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
+		ifog = 1 - VERTEXFOGTABLE(VectorDistance(v, r_vieworigin));
 		c[0] = r * ifog;
 		c[1] = g * ifog;
 		c[2] = b * ifog;
@@ -227,9 +229,9 @@ void R_FogLightningBeam_Vertex3f_Color4f(const float *v, float *c, int numverts,
 
 float beamrepeatscale;
 
-void R_DrawLightningBeamCallback(const void *calldata1, int calldata2)
+void R_DrawLightningBeam_TransparentCallback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
 {
-	const beam_t *b = calldata1;
+	const beam_t *b = cl_beams + surfacenumber;
 	rmeshstate_t m;
 	vec3_t beamdir, right, up, offset;
 	float length, t1, t2;
@@ -253,11 +255,11 @@ void R_DrawLightningBeamCallback(const void *calldata1, int calldata2)
 	// (this leaves only a vector pointing directly away from the beam)
 	t1 = -DotProduct(up, beamdir);
 	VectorMA(up, t1, beamdir, up);
-	// now we have a vector pointing away from the beam, now we need to normalize it
-	VectorNormalizeFast(up);
-	// generate right vector from forward and up, the result is already normalized
-	// (CrossProduct returns a vector of multiplied length of the two inputs)
+	// generate right vector from forward and up, the result is unnormalized
 	CrossProduct(beamdir, up, right);
+	// now normalize the right vector and up vector
+	VectorNormalize(right);
+	VectorNormalize(up);
 
 	// calculate T coordinate scrolling (start and end texcoord along the beam)
 	t1 = r_refdef.time * -r_lightningbeam_scroll.value;// + beamrepeatscale * DotProduct(b->start, beamdir);
@@ -321,7 +323,7 @@ void R_DrawLightningBeamCallback(const void *calldata1, int calldata2)
 
 	// draw the 3 polygons as one batch of 6 triangles using the 12 vertices
 	GL_LockArrays(0, 12);
-	R_Mesh_Draw(12, 6, r_lightningbeamelements);
+	R_Mesh_Draw(0, 12, 6, r_lightningbeamelements);
 	GL_LockArrays(0, 0);
 }
 
@@ -341,7 +343,7 @@ void R_DrawLightningBeams(void)
 		{
 			VectorAdd(b->start, b->end, org);
 			VectorScale(org, 0.5f, org);
-			R_MeshQueue_AddTransparent(org, R_DrawLightningBeamCallback, b, 0);
+			R_MeshQueue_AddTransparent(org, R_DrawLightningBeam_TransparentCallback, NULL, i, NULL);
 		}
 	}
 }