out[2] = v->z + (out[2] * iw + 1.0f) * v->depth * 0.5f;
}
+static int bboxedges[12][2] =
+{
+ // top
+ {0, 1}, // +X
+ {0, 2}, // +Y
+ {1, 3}, // Y, +X
+ {2, 3}, // X, +Y
+ // bottom
+ {4, 5}, // +X
+ {4, 6}, // +Y
+ {5, 7}, // Y, +X
+ {6, 7}, // X, +Y
+ // verticals
+ {0, 4}, // +Z
+ {1, 5}, // X, +Z
+ {2, 6}, // Y, +Z
+ {3, 7}, // XY, +Z
+};
+
+qboolean R_ScissorForBBox(const float *mins, const float *maxs, int *scissor)
+{
+ int i, ix1, iy1, ix2, iy2;
+ float x1, y1, x2, y2;
+ vec4_t v, v2;
+ float vertex[20][3];
+ int j, k;
+ vec4_t plane4f;
+ int numvertices;
+ float corner[8][4];
+ float dist[8];
+ int sign[8];
+ float f;
+
+ scissor[0] = r_refdef.view.viewport.x;
+ scissor[1] = r_refdef.view.viewport.y;
+ scissor[2] = r_refdef.view.viewport.width;
+ scissor[3] = r_refdef.view.viewport.height;
+
+ // if view is inside the box, just say yes it's visible
+ if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs))
+ return false;
+
+ x1 = y1 = x2 = y2 = 0;
+
+ // transform all corners that are infront of the nearclip plane
+ VectorNegate(r_refdef.view.frustum[4].normal, plane4f);
+ plane4f[3] = r_refdef.view.frustum[4].dist;
+ numvertices = 0;
+ for (i = 0;i < 8;i++)
+ {
+ Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1);
+ dist[i] = DotProduct4(corner[i], plane4f);
+ sign[i] = dist[i] > 0;
+ if (!sign[i])
+ {
+ VectorCopy(corner[i], vertex[numvertices]);
+ numvertices++;
+ }
+ }
+ // if some points are behind the nearclip, add clipped edge points to make
+ // sure that the scissor boundary is complete
+ if (numvertices > 0 && numvertices < 8)
+ {
+ // add clipped edge points
+ for (i = 0;i < 12;i++)
+ {
+ j = bboxedges[i][0];
+ k = bboxedges[i][1];
+ if (sign[j] != sign[k])
+ {
+ f = dist[j] / (dist[j] - dist[k]);
+ VectorLerp(corner[j], f, corner[k], vertex[numvertices]);
+ numvertices++;
+ }
+ }
+ }
+
+ // if we have no points to check, it is behind the view plane
+ if (!numvertices)
+ return true;
+
+ // if we have some points to transform, check what screen area is covered
+ x1 = y1 = x2 = y2 = 0;
+ v[3] = 1.0f;
+ //Con_Printf("%i vertices to transform...\n", numvertices);
+ for (i = 0;i < numvertices;i++)
+ {
+ VectorCopy(vertex[i], v);
+ R_Viewport_TransformToScreen(&r_refdef.view.viewport, v, v2);
+ //Con_Printf("%.3f %.3f %.3f %.3f transformed to %.3f %.3f %.3f %.3f\n", v[0], v[1], v[2], v[3], v2[0], v2[1], v2[2], v2[3]);
+ if (i)
+ {
+ if (x1 > v2[0]) x1 = v2[0];
+ if (x2 < v2[0]) x2 = v2[0];
+ if (y1 > v2[1]) y1 = v2[1];
+ if (y2 < v2[1]) y2 = v2[1];
+ }
+ else
+ {
+ x1 = x2 = v2[0];
+ y1 = y2 = v2[1];
+ }
+ }
+
+ // now convert the scissor rectangle to integer screen coordinates
+ ix1 = (int)(x1 - 1.0f);
+ //iy1 = vid.height - (int)(y2 - 1.0f);
+ //iy1 = r_refdef.view.viewport.width + 2 * r_refdef.view.viewport.x - (int)(y2 - 1.0f);
+ iy1 = (int)(y1 - 1.0f);
+ ix2 = (int)(x2 + 1.0f);
+ //iy2 = vid.height - (int)(y1 + 1.0f);
+ //iy2 = r_refdef.view.viewport.height + 2 * r_refdef.view.viewport.y - (int)(y1 + 1.0f);
+ iy2 = (int)(y2 + 1.0f);
+ //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2);
+
+ // clamp it to the screen
+ if (ix1 < r_refdef.view.viewport.x) ix1 = r_refdef.view.viewport.x;
+ if (iy1 < r_refdef.view.viewport.y) iy1 = r_refdef.view.viewport.y;
+ if (ix2 > r_refdef.view.viewport.x + r_refdef.view.viewport.width) ix2 = r_refdef.view.viewport.x + r_refdef.view.viewport.width;
+ if (iy2 > r_refdef.view.viewport.y + r_refdef.view.viewport.height) iy2 = r_refdef.view.viewport.y + r_refdef.view.viewport.height;
+
+ // if it is inside out, it's not visible
+ if (ix2 <= ix1 || iy2 <= iy1)
+ return true;
+
+ // the light area is visible, set up the scissor rectangle
+ scissor[0] = ix1;
+ scissor[1] = iy1;
+ scissor[2] = ix2 - ix1;
+ scissor[3] = iy2 - iy1;
+
+ // D3D Y coordinate is top to bottom, OpenGL is bottom to top, fix the D3D one
+ switch(vid.renderpath)
+ {
+ case RENDERPATH_D3D9:
+ case RENDERPATH_D3D10:
+ case RENDERPATH_D3D11:
+ scissor[1] = vid.height - scissor[1] - scissor[3];
+ break;
+ case RENDERPATH_GL11:
+ case RENDERPATH_GL13:
+ case RENDERPATH_GL20:
+ case RENDERPATH_CGGL:
+ break;
+ }
+
+ return false;
+}
+
+
static void R_Viewport_ApplyNearClipPlaneFloatGL(const r_viewport_t *v, float *m, float normalx, float normaly, float normalz, float dist)
{
float q[4];
cvar_t r_water_resolutionmultiplier = {CVAR_SAVE, "r_water_resolutionmultiplier", "0.5", "multiplier for screen resolution when rendering refracted/reflected scenes, 1 is full quality, lower values are faster"};
cvar_t r_water_refractdistort = {CVAR_SAVE, "r_water_refractdistort", "0.01", "how much water refractions shimmer"};
cvar_t r_water_reflectdistort = {CVAR_SAVE, "r_water_reflectdistort", "0.01", "how much water reflections shimmer"};
+cvar_t r_water_scissormode = {CVAR_SAVE, "r_water_scissormode", "2", "scissor (1) and cull (2) water renders"};
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"};
Cvar_RegisterVariable(&r_water_clippingplanebias);
Cvar_RegisterVariable(&r_water_refractdistort);
Cvar_RegisterVariable(&r_water_reflectdistort);
+ Cvar_RegisterVariable(&r_water_scissormode);
Cvar_RegisterVariable(&r_lerpsprites);
Cvar_RegisterVariable(&r_lerpmodels);
Cvar_RegisterVariable(&r_lerplightstyles);
}
}
-static void R_View_SetFrustum(void)
+static void R_View_SetFrustum(const int *scissor)
{
int i;
- double slopex, slopey;
+ double fpx, fnx, fpy, fny;
vec3_t forward, left, up, origin;
+ if(scissor)
+ {
+ // flipped x coordinates (because x points left here)
+ fpx = 1.0 - 2.0 * (scissor[0] - r_refdef.view.viewport.x) / (double) (r_refdef.view.viewport.width);
+ fnx = 1.0 - 2.0 * (scissor[0] + scissor[2] - r_refdef.view.viewport.x) / (double) (r_refdef.view.viewport.width);
+
+ // non-flipped y coordinates
+ fny = -1.0 + 2.0 * (scissor[1] - r_refdef.view.viewport.y) / (double) (r_refdef.view.viewport.height);
+ fpy = -1.0 + 2.0 * (scissor[1] + scissor[3] - r_refdef.view.viewport.y) / (double) (r_refdef.view.viewport.height);
+ }
+ else
+ {
+ fnx = fny = -1;
+ fpx = fpy = +1;
+ }
+
// we can't trust r_refdef.view.forward and friends in reflected scenes
Matrix4x4_ToVectors(&r_refdef.view.matrix, forward, left, up, origin);
if (r_refdef.view.useperspective)
{
- slopex = 1.0 / r_refdef.view.frustum_x;
- slopey = 1.0 / r_refdef.view.frustum_y;
- VectorMA(forward, -slopex, left, r_refdef.view.frustum[0].normal);
- VectorMA(forward, slopex, left, r_refdef.view.frustum[1].normal);
- VectorMA(forward, -slopey, up , r_refdef.view.frustum[2].normal);
- VectorMA(forward, slopey, up , r_refdef.view.frustum[3].normal);
- VectorCopy(forward, r_refdef.view.frustum[4].normal);
+ // calculate frustum corners, which are used to calculate deformed frustum planes for shadow caster culling
+ VectorMAMAM(1024, forward, fnx * 1024.0 * r_refdef.view.frustum_x, left, fny * 1024.0 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[0]);
+ VectorMAMAM(1024, forward, fpx * 1024.0 * r_refdef.view.frustum_x, left, fny * 1024.0 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[1]);
+ VectorMAMAM(1024, forward, fnx * 1024.0 * r_refdef.view.frustum_x, left, fpy * 1024.0 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[2]);
+ VectorMAMAM(1024, forward, fpx * 1024.0 * r_refdef.view.frustum_x, left, fpy * 1024.0 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[3]);
+
+ // then the normals from the corners relative to origin
+ CrossProduct(r_refdef.view.frustumcorner[2], r_refdef.view.frustumcorner[0], r_refdef.view.frustum[0].normal);
+ CrossProduct(r_refdef.view.frustumcorner[1], r_refdef.view.frustumcorner[3], r_refdef.view.frustum[1].normal);
+ CrossProduct(r_refdef.view.frustumcorner[0], r_refdef.view.frustumcorner[1], r_refdef.view.frustum[2].normal);
+ CrossProduct(r_refdef.view.frustumcorner[3], r_refdef.view.frustumcorner[2], r_refdef.view.frustum[3].normal);
// Leaving those out was a mistake, those were in the old code, and they
// fix a reproducable bug in this one: frustum culling got fucked up when viewmatrix was an identity matrix
VectorNormalize(r_refdef.view.frustum[2].normal);
VectorNormalize(r_refdef.view.frustum[3].normal);
- // calculate frustum corners, which are used to calculate deformed frustum planes for shadow caster culling
- VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, -1024 * r_refdef.view.frustum_x, left, -1024 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[0]);
- VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, 1024 * r_refdef.view.frustum_x, left, -1024 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[1]);
- VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, -1024 * r_refdef.view.frustum_x, left, 1024 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[2]);
- VectorMAMAMAM(1, r_refdef.view.origin, 1024, forward, 1024 * r_refdef.view.frustum_x, left, 1024 * r_refdef.view.frustum_y, up, r_refdef.view.frustumcorner[3]);
+ // make the corners absolute
+ VectorAdd(r_refdef.view.frustumcorner[0], r_refdef.view.origin, r_refdef.view.frustumcorner[0]);
+ VectorAdd(r_refdef.view.frustumcorner[1], r_refdef.view.origin, r_refdef.view.frustumcorner[1]);
+ VectorAdd(r_refdef.view.frustumcorner[2], r_refdef.view.origin, r_refdef.view.frustumcorner[2]);
+ VectorAdd(r_refdef.view.frustumcorner[3], r_refdef.view.origin, r_refdef.view.frustumcorner[3]);
+
+ // one more normal
+ VectorCopy(forward, r_refdef.view.frustum[4].normal);
r_refdef.view.frustum[0].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[0].normal);
r_refdef.view.frustum[1].dist = DotProduct (r_refdef.view.origin, r_refdef.view.frustum[1].normal);
//PlaneClassify(&frustum[4]);
}
+void R_View_UpdateWithScissor(const int *myscissor)
+{
+ R_Main_ResizeViewCache();
+ R_View_SetFrustum(myscissor);
+ R_View_WorldVisibility(r_refdef.view.useclipplane);
+ R_View_UpdateEntityVisible();
+ R_View_UpdateEntityLighting();
+}
+
void R_View_Update(void)
{
R_Main_ResizeViewCache();
- R_View_SetFrustum();
+ R_View_SetFrustum(NULL);
R_View_WorldVisibility(r_refdef.view.useclipplane);
R_View_UpdateEntityVisible();
R_View_UpdateEntityLighting();
p->materialflags = 0;
p->pvsvalid = false;
p->camera_entity = t->camera_entity;
+ VectorCopy(surface->mins, p->mins);
+ VectorCopy(surface->maxs, p->maxs);
+ }
+ else
+ {
+ // merge mins/maxs
+ p->mins[0] = min(p->mins[0], surface->mins[0]);
+ p->mins[1] = min(p->mins[1], surface->mins[1]);
+ p->mins[2] = min(p->mins[2], surface->mins[2]);
+ p->maxs[0] = min(p->maxs[0], surface->maxs[0]);
+ p->maxs[1] = min(p->maxs[1], surface->maxs[1]);
+ p->maxs[2] = min(p->maxs[2], surface->maxs[2]);
}
// merge this surface's materialflags into the waterplane
p->materialflags |= t->currentmaterialflags;
static void R_Water_ProcessPlanes(void)
{
+ int myscissor[4];
r_refdef_view_t originalview;
r_refdef_view_t myview;
int planeindex;
if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFLECTION))
{
r_refdef.view = myview;
+ if(r_water_scissormode.integer)
+ {
+ R_SetupView(true);
+ if(R_ScissorForBBox(p->mins, p->maxs, myscissor))
+ continue; // FIXME the plane then still may get rendered but with broken texture, but it sure won't be visible
+ }
+
// render reflected scene and copy into texture
Matrix4x4_Reflect(&r_refdef.view.matrix, p->plane.normal[0], p->plane.normal[1], p->plane.normal[2], p->plane.dist, -2);
// update the r_refdef.view.origin because otherwise the sky renders at the wrong location (amongst other problems)
Matrix4x4_OriginFromMatrix(&r_refdef.view.matrix, r_refdef.view.origin);
r_refdef.view.clipplane = p->plane;
+
// reverse the cullface settings for this render
r_refdef.view.cullface_front = GL_FRONT;
r_refdef.view.cullface_back = GL_BACK;
R_ResetViewRendering3D();
R_ClearScreen(r_refdef.fogenabled);
- R_View_Update();
+ if(r_water_scissormode.integer >= 2)
+ R_View_UpdateWithScissor(myscissor);
+ else
+ R_View_Update();
+ if(r_water_scissormode.integer)
+ GL_Scissor(myscissor[0], myscissor[1], myscissor[2], myscissor[3]);
R_RenderScene();
R_Mesh_CopyToTexture(p->texture_reflection, 0, 0, r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height);
// (except that a clipping plane should be used to hide everything on one side of the water, and the viewer's weapon model should be omitted)
if (p->materialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION))
{
- r_waterstate.renderingrefraction = true;
r_refdef.view = myview;
+ if(r_water_scissormode.integer)
+ {
+ R_SetupView(true);
+ if(R_ScissorForBBox(p->mins, p->maxs, myscissor))
+ continue; // FIXME the plane then still may get rendered but with broken texture, but it sure won't be visible
+ }
+
+ r_waterstate.renderingrefraction = true;
r_refdef.view.clipplane = p->plane;
VectorNegate(r_refdef.view.clipplane.normal, r_refdef.view.clipplane.normal);
R_ResetViewRendering3D();
R_ClearScreen(r_refdef.fogenabled);
- R_View_Update();
+ if(r_water_scissormode.integer >= 2)
+ R_View_UpdateWithScissor(myscissor);
+ else
+ R_View_Update();
+ if(r_water_scissormode.integer)
+ GL_Scissor(myscissor[0], myscissor[1], myscissor[2], myscissor[3]);
R_RenderScene();
R_Mesh_CopyToTexture(p->texture_refraction, 0, 0, r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height);
CL_VM_TransformView(p->camera_entity - MAX_EDICTS, &r_refdef.view.matrix, &r_refdef.view.clipplane, visorigin);
}
+ // note: all of the view is used for displaying... so
+ // there is no use in scissoring
+
// reverse the cullface settings for this render
r_refdef.view.cullface_front = GL_FRONT;
r_refdef.view.cullface_back = GL_BACK;
GL_Scissor(0, 0, vid.width, vid.height);
GL_ScissorTest(false);
+
CHECKGLERROR
}
R_TimeReport("coronas");
}
+#if 0
+ {
+ GL_DepthTest(false);
+ qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ GL_Color(1, 1, 1, 1);
+ qglBegin(GL_POLYGON);
+ qglVertex3f(r_refdef.view.frustumcorner[0][0], r_refdef.view.frustumcorner[0][1], r_refdef.view.frustumcorner[0][2]);
+ qglVertex3f(r_refdef.view.frustumcorner[1][0], r_refdef.view.frustumcorner[1][1], r_refdef.view.frustumcorner[1][2]);
+ qglVertex3f(r_refdef.view.frustumcorner[3][0], r_refdef.view.frustumcorner[3][1], r_refdef.view.frustumcorner[3][2]);
+ qglVertex3f(r_refdef.view.frustumcorner[2][0], r_refdef.view.frustumcorner[2][1], r_refdef.view.frustumcorner[2][2]);
+ qglEnd();
+ qglBegin(GL_POLYGON);
+ qglVertex3f(r_refdef.view.frustumcorner[0][0] + 1000 * r_refdef.view.forward[0], r_refdef.view.frustumcorner[0][1] + 1000 * r_refdef.view.forward[1], r_refdef.view.frustumcorner[0][2] + 1000 * r_refdef.view.forward[2]);
+ qglVertex3f(r_refdef.view.frustumcorner[1][0] + 1000 * r_refdef.view.forward[0], r_refdef.view.frustumcorner[1][1] + 1000 * r_refdef.view.forward[1], r_refdef.view.frustumcorner[1][2] + 1000 * r_refdef.view.forward[2]);
+ qglVertex3f(r_refdef.view.frustumcorner[3][0] + 1000 * r_refdef.view.forward[0], r_refdef.view.frustumcorner[3][1] + 1000 * r_refdef.view.forward[1], r_refdef.view.frustumcorner[3][2] + 1000 * r_refdef.view.forward[2]);
+ qglVertex3f(r_refdef.view.frustumcorner[2][0] + 1000 * r_refdef.view.forward[0], r_refdef.view.frustumcorner[2][1] + 1000 * r_refdef.view.forward[1], r_refdef.view.frustumcorner[2][2] + 1000 * r_refdef.view.forward[2]);
+ qglEnd();
+ qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+ }
+#endif
+
// don't let sound skip if going slow
if (r_refdef.scene.extraupdate)
S_ExtraUpdate ();
r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
}
-int bboxedges[12][2] =
-{
- // top
- {0, 1}, // +X
- {0, 2}, // +Y
- {1, 3}, // Y, +X
- {2, 3}, // X, +Y
- // bottom
- {4, 5}, // +X
- {4, 6}, // +Y
- {5, 7}, // Y, +X
- {6, 7}, // X, +Y
- // verticals
- {0, 4}, // +Z
- {1, 5}, // X, +Z
- {2, 6}, // Y, +Z
- {3, 7}, // XY, +Z
-};
-
qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs)
{
- int i, ix1, iy1, ix2, iy2;
- float x1, y1, x2, y2;
- vec4_t v, v2;
- float vertex[20][3];
- int j, k;
- vec4_t plane4f;
- int numvertices;
- float corner[8][4];
- float dist[8];
- int sign[8];
- float f;
-
- 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;
-
if (!r_shadow_scissor.integer)
- return false;
-
- // if view is inside the light box, just say yes it's visible
- if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs))
- return false;
-
- x1 = y1 = x2 = y2 = 0;
-
- // transform all corners that are infront of the nearclip plane
- VectorNegate(r_refdef.view.frustum[4].normal, plane4f);
- plane4f[3] = r_refdef.view.frustum[4].dist;
- numvertices = 0;
- for (i = 0;i < 8;i++)
- {
- Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1);
- dist[i] = DotProduct4(corner[i], plane4f);
- sign[i] = dist[i] > 0;
- if (!sign[i])
- {
- VectorCopy(corner[i], vertex[numvertices]);
- numvertices++;
- }
- }
- // if some points are behind the nearclip, add clipped edge points to make
- // sure that the scissor boundary is complete
- if (numvertices > 0 && numvertices < 8)
{
- // add clipped edge points
- for (i = 0;i < 12;i++)
- {
- j = bboxedges[i][0];
- k = bboxedges[i][1];
- if (sign[j] != sign[k])
- {
- f = dist[j] / (dist[j] - dist[k]);
- VectorLerp(corner[j], f, corner[k], vertex[numvertices]);
- numvertices++;
- }
- }
+ 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;
+ return false;
}
- // if we have no points to check, the light is behind the view plane
- if (!numvertices)
- return true;
-
- // if we have some points to transform, check what screen area is covered
- x1 = y1 = x2 = y2 = 0;
- v[3] = 1.0f;
- //Con_Printf("%i vertices to transform...\n", numvertices);
- for (i = 0;i < numvertices;i++)
+ if(R_ScissorForBBox(mins, maxs, r_shadow_lightscissor))
{
- VectorCopy(vertex[i], v);
- R_Viewport_TransformToScreen(&r_refdef.view.viewport, v, v2);
- //Con_Printf("%.3f %.3f %.3f %.3f transformed to %.3f %.3f %.3f %.3f\n", v[0], v[1], v[2], v[3], v2[0], v2[1], v2[2], v2[3]);
- if (i)
- {
- if (x1 > v2[0]) x1 = v2[0];
- if (x2 < v2[0]) x2 = v2[0];
- if (y1 > v2[1]) y1 = v2[1];
- if (y2 < v2[1]) y2 = v2[1];
- }
- else
- {
- x1 = x2 = v2[0];
- y1 = y2 = v2[1];
- }
+ if(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)
+ r_refdef.stats.lights_scissored++;
+ return false;
}
-
- // now convert the scissor rectangle to integer screen coordinates
- ix1 = (int)(x1 - 1.0f);
- //iy1 = vid.height - (int)(y2 - 1.0f);
- //iy1 = r_refdef.view.viewport.width + 2 * r_refdef.view.viewport.x - (int)(y2 - 1.0f);
- iy1 = (int)(y1 - 1.0f);
- ix2 = (int)(x2 + 1.0f);
- //iy2 = vid.height - (int)(y1 + 1.0f);
- //iy2 = r_refdef.view.viewport.height + 2 * r_refdef.view.viewport.y - (int)(y1 + 1.0f);
- iy2 = (int)(y2 + 1.0f);
- //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2);
-
- // clamp it to the screen
- if (ix1 < r_refdef.view.viewport.x) ix1 = r_refdef.view.viewport.x;
- if (iy1 < r_refdef.view.viewport.y) iy1 = r_refdef.view.viewport.y;
- if (ix2 > r_refdef.view.viewport.x + r_refdef.view.viewport.width) ix2 = r_refdef.view.viewport.x + r_refdef.view.viewport.width;
- if (iy2 > r_refdef.view.viewport.y + r_refdef.view.viewport.height) iy2 = r_refdef.view.viewport.y + r_refdef.view.viewport.height;
-
- // if it is inside out, it's not visible
- if (ix2 <= ix1 || iy2 <= iy1)
- return true;
-
- // the light area is visible, set up the scissor rectangle
- r_shadow_lightscissor[0] = ix1;
- r_shadow_lightscissor[1] = iy1;
- r_shadow_lightscissor[2] = ix2 - ix1;
- r_shadow_lightscissor[3] = iy2 - iy1;
-
- r_refdef.stats.lights_scissored++;
- return false;
+ else
+ return true; // invisible
}
static void R_Shadow_RenderLighting_Light_Vertex_Shading(int firstvertex, int numverts, int numtriangles, const int *element3i, const float *diffusecolor, const float *ambientcolor)
projects / xonotic / darkplaces.git / commitdiff