- enable use of vertex buffer for sprite rendering.

src/gl/data/gl_vertexbuffer.h

@@ -26,6 +26,14 @@ struct FFlatVertex
 	float u,v;		// texture coordinates
 
 	void SetFlatVertex(vertex_t *vt, const secplane_t &plane);
+	void Set(float xx, float zz, float yy, float uu, float vv)
+	{
+		x = xx;
+		z = zz;
+		y = yy;
+		u = uu;
+		v = vv;
+	}
 };
 
 #define VTO ((FFlatVertex*)NULL)

src/gl/dynlights/a_dynlight.cpp

@@ -528,7 +528,7 @@ void ADynamicLight::CollectWithinRadius(subsector_t *subSec, float radius)
 	touching_subsectors = AddLightNode(&subSec->lighthead[additive], subSec, this, touching_subsectors);
 	if (subSec->sector->validcount != ::validcount)
 	{
-		touching_sector = AddLightNode(&subSec->sector->lighthead[additive], subSec->sector, this, touching_sector);
+		touching_sector = AddLightNode(&subSec->render_sector->lighthead[additive], subSec->sector, this, touching_sector);
 		subSec->sector->validcount = ::validcount;
 	}
 

src/gl/scene/gl_sprite.cpp

@@ -52,6 +52,7 @@
 #include "gl/system/gl_cvars.h"
 #include "gl/renderer/gl_lightdata.h"
 #include "gl/renderer/gl_renderstate.h"
+#include "gl/renderer/gl_renderer.h"
 #include "gl/data/gl_data.h"
 #include "gl/dynlights/gl_glow.h"
 #include "gl/scene/gl_drawinfo.h"
@@ -60,6 +61,7 @@
 #include "gl/shaders/gl_shader.h"
 #include "gl/textures/gl_material.h"
 #include "gl/utility/gl_clock.h"
+#include "gl/data/gl_vertexbuffer.h"
 
 CVAR(Bool, gl_usecolorblending, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
 CVAR(Bool, gl_spritebrightfog, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
@@ -265,33 +267,10 @@ void GLSprite::Draw(int pass)
 			v4 = Vector(x2, z2, y2);
 		}
 
-		glBegin(GL_TRIANGLE_STRIP);
+		FFlatVertex *ptr;
-		if (gltexture)
+		unsigned int offset, count;
+		if (!gl_usevbo)
 		{
-			glTexCoord2f(ul, vt); glVertex3fv(&v1[0]);
-			glTexCoord2f(ur, vt); glVertex3fv(&v2[0]);
-			glTexCoord2f(ul, vb); glVertex3fv(&v3[0]);
-			glTexCoord2f(ur, vb); glVertex3fv(&v4[0]);
-		}
-		else	// Particle
-		{
-			glVertex3fv(&v1[0]);
-			glVertex3fv(&v2[0]);
-			glVertex3fv(&v3[0]);
-			glVertex3fv(&v4[0]);
-		}
-
-		glEnd();
-
-		if (foglayer)
-		{
-			// If we get here we know that we have colored fog and no fixed colormap.
-			gl_SetFog(foglevel, rel, &Colormap, additivefog);
-			gl_RenderState.SetFixedColormap(CM_FOGLAYER);
-			gl_RenderState.BlendEquation(GL_FUNC_ADD);
-			gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-			gl_RenderState.Apply();
-
 			glBegin(GL_TRIANGLE_STRIP);
 			if (gltexture)
 			{
@@ -307,7 +286,56 @@ void GLSprite::Draw(int pass)
 				glVertex3fv(&v3[0]);
 				glVertex3fv(&v4[0]);
 			}
+
 			glEnd();
+		}
+		else
+		{
+			ptr = GLRenderer->mVBO->GetBuffer();
+			ptr->Set(v1[0], v1[1], v1[2], ul, vt);
+			ptr++;
+			ptr->Set(v2[0], v2[1], v2[2], ur, vt);
+			ptr++;
+			ptr->Set(v3[0], v3[1], v3[2], ul, vb);
+			ptr++;
+			ptr->Set(v4[0], v4[1], v4[2], ur, vb);
+			ptr++;
+			count = GLRenderer->mVBO->GetCount(ptr, &offset);
+			glDrawArrays(GL_TRIANGLE_STRIP, offset, count);
+		}
+
+		if (foglayer)
+		{
+			// If we get here we know that we have colored fog and no fixed colormap.
+			gl_SetFog(foglevel, rel, &Colormap, additivefog);
+			gl_RenderState.SetFixedColormap(CM_FOGLAYER);
+			gl_RenderState.BlendEquation(GL_FUNC_ADD);
+			gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			gl_RenderState.Apply();
+
+			if (!gl_usevbo)
+			{
+				glBegin(GL_TRIANGLE_STRIP);
+				if (gltexture)
+				{
+					glTexCoord2f(ul, vt); glVertex3fv(&v1[0]);
+					glTexCoord2f(ur, vt); glVertex3fv(&v2[0]);
+					glTexCoord2f(ul, vb); glVertex3fv(&v3[0]);
+					glTexCoord2f(ur, vb); glVertex3fv(&v4[0]);
+				}
+				else	// Particle
+				{
+					glVertex3fv(&v1[0]);
+					glVertex3fv(&v2[0]);
+					glVertex3fv(&v3[0]);
+					glVertex3fv(&v4[0]);
+				}
+				glEnd();
+			}
+			else
+			{
+				glDrawArrays(GL_TRIANGLE_STRIP, offset, count);
+			}
 			gl_RenderState.SetFixedColormap(CM_DEFAULT);
 		}
 	}

src/gl/scene/gl_walls_draw.cpp

@@ -290,32 +290,16 @@ void GLWall::RenderWall(int textured, float * color2, ADynamicLight * light)
 	{
 		FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
 
-		ptr->x = glseg.x1;
+		ptr->Set(glseg.x1, zbottom[0], glseg.y1, tcs[0].u, tcs[0].v);
-		ptr->y = glseg.y1;
-		ptr->z = zbottom[0];
-		ptr->u = tcs[0].u;
-		ptr->v = tcs[0].v;
 		ptr++;
 		if (split && glseg.fracleft == 0) SplitLeftEdge(tcs, ptr);
-		ptr->x = glseg.x1;
+		ptr->Set(glseg.x1, ztop[0], glseg.y1, tcs[1].u, tcs[1].v);
-		ptr->y = glseg.y1;
-		ptr->z = ztop[0];
-		ptr->u = tcs[1].u;
-		ptr->v = tcs[1].v;
 		ptr++;
 		if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(tcs, ptr);
-		ptr->x = glseg.x2;
+		ptr->Set(glseg.x2, ztop[1], glseg.y2, tcs[2].u, tcs[2].v);
-		ptr->y = glseg.y2;
-		ptr->z = ztop[1];
-		ptr->u = tcs[2].u;
-		ptr->v = tcs[2].v;
 		ptr++;
 		if (split && glseg.fracright == 1) SplitRightEdge(tcs, ptr);
-		ptr->x = glseg.x2;
+		ptr->Set(glseg.x2, zbottom[1], glseg.y2, tcs[3].u, tcs[3].v);
-		ptr->y = glseg.y2;
-		ptr->z = zbottom[1];
-		ptr->u = tcs[3].u;
-		ptr->v = tcs[3].v;
 		ptr++;
 		if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(tcs, ptr);
 		unsigned int offset;