/*
=============
R_DrawPic
=============
*/
void R_DrawImage (int32_t x, int32_t y, image_t *gl)
{
static const vec4_t color[4] = {
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0},
{1.0, 1.0, 1.0, 1.0}
};
if (scrap_dirty)
Scrap_Upload ();
GL_Bind (gl->texnum);
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], gl->sl, gl->tl);
VA_SetElem2(texCoordArray[0][1], gl->sh, gl->tl);
VA_SetElem2(texCoordArray[0][2], gl->sh, gl->th);
VA_SetElem2(texCoordArray[0][3], gl->sl, gl->th);
VA_SetElem3(vertexArray[0], x, y, 0);
VA_SetElem3(vertexArray[1], x+gl->width, y, 0);
VA_SetElem3(vertexArray[2], x+gl->width, y+gl->height, 0);
VA_SetElem3(vertexArray[3], x, y+gl->height, 0);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
}
/*
* =================
* R_Bloom_DrawEffect
* =================
*/
void R_Bloom_DrawEffect(void)
{
GL_Bind(r_bloomeffecttexture->texnum);
GL_Enable(GL_BLEND);
GL_BlendFunc(GL_ONE, GL_ONE);
GL_TexEnv(GL_MODULATE);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex + 0;
indexArray[rb_index++] = rb_vertex + 1;
indexArray[rb_index++] = rb_vertex + 2;
indexArray[rb_index++] = rb_vertex + 0;
indexArray[rb_index++] = rb_vertex + 2;
indexArray[rb_index++] = rb_vertex + 3;
VA_SetElem2(texCoordArray[0][rb_vertex], 0, sampleText_tch);
VA_SetElem3(vertexArray[rb_vertex], curView_x, curView_y, 0);
VA_SetElem4(colorArray[rb_vertex], r_bloom_alpha->value, r_bloom_alpha->value, r_bloom_alpha->value, 1.0f);
rb_vertex++;
VA_SetElem2(texCoordArray[0][rb_vertex], 0, 0);
VA_SetElem3(vertexArray[rb_vertex], curView_x, curView_y + curView_height, 0);
VA_SetElem4(colorArray[rb_vertex], r_bloom_alpha->value, r_bloom_alpha->value, r_bloom_alpha->value, 1.0f);
rb_vertex++;
VA_SetElem2(texCoordArray[0][rb_vertex], sampleText_tcw, 0);
VA_SetElem3(vertexArray[rb_vertex], curView_x + curView_width, curView_y + curView_height, 0);
VA_SetElem4(colorArray[rb_vertex], r_bloom_alpha->value, r_bloom_alpha->value, r_bloom_alpha->value, 1.0f);
rb_vertex++;
VA_SetElem2(texCoordArray[0][rb_vertex], sampleText_tcw, sampleText_tch);
VA_SetElem3(vertexArray[rb_vertex], curView_x + curView_width, curView_y, 0);
VA_SetElem4(colorArray[rb_vertex], r_bloom_alpha->value, r_bloom_alpha->value, r_bloom_alpha->value, 1.0f);
rb_vertex++;
RB_DrawArrays();
rb_vertex = rb_index = 0;
GL_Disable(GL_BLEND);
}
/*
================
DrawGLFlowingPoly -- version of DrawGLPoly that handles scrolling texture
================
*/
void DrawGLFlowingPoly (msurface_t *fa)
{
int i;
float *v;
glpoly_t *p;
float scroll;
p = fa->polys;
scroll = -64 * ((r_newrefdef.time / 40.0) - (int)(r_newrefdef.time / 40.0));
if (scroll == 0.0)
scroll = -64.0;
#ifdef BEEFQUAKERENDER // jit3dfx
v = p->verts[0];
for (i=0; i<p->numverts; i++, v+= VERTEXSIZE)
{
VA_SetElem2(tex_array[i],(v[3]+scroll),v[4]);
VA_SetElem3(vert_array[i],v[0],v[1],v[2]);
}
// if (qgl.LockArraysEXT != 0) qgl.LockArraysEXT(0,p->numverts);
qgl.DrawArrays (GL_POLYGON, 0, p->numverts);
// if (qgl.UnlockArraysEXT != 0) qgl.UnlockArraysEXT();
#else
qgl.Begin (GL_POLYGON);
v = p->verts[0];
for (i=0; i<p->numverts; i++, v+= VERTEXSIZE)
{
qgl.TexCoord2f ((v[3] + scroll), v[4]);
qgl.Vertex3fv (v);
}
qgl.End ();
#endif
}
/*
=============
R_DrawPic
=============
*/
void R_DrawImage (int32_t x, int32_t y, image_t *gl)
{
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
GL_Bind (gl->texnum);
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+gl->width, y);
Vector2Set(verts[2], x+gl->width, y+gl->height);
Vector2Set(verts[3], x, y+gl->height);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, 1.0);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
/*
=================
R_DrawAliasPlanarShadow
=================
*/
void R_DrawAliasPlanarShadow (maliasmodel_t *paliashdr)
{
maliasmesh_t mesh;
float height, lheight, thisAlpha;
vec3_t point, shadevector;
int i, j;
R_ShadowLight (currententity->origin, shadevector);
lheight = currententity->origin[2] - lightspot[2];
height = -lheight + 0.1f;
if (currententity->flags & RF_TRANSLUCENT)
thisAlpha = aliasShadowAlpha * currententity->alpha; // was r_shadowalpha->value
else
thisAlpha = aliasShadowAlpha; // was r_shadowalpha->value
// don't draw shadows above view origin, thnx to MrG
if (r_newrefdef.vieworg[2] < (currententity->origin[2] + height))
return;
GL_Stencil (true, false);
GL_BlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE_MINUS_SRC_ALPHA);
rb_vertex = rb_index = 0;
for (i=0; i<paliashdr->num_meshes; i++)
{
mesh = paliashdr->meshes[i];
if (mesh.skins[currententity->skinnum].renderparms.nodraw
|| mesh.skins[currententity->skinnum].renderparms.alphatest
|| mesh.skins[currententity->skinnum].renderparms.noshadow)
continue;
for (j=0; j<mesh.num_verts; j++)
{
VectorCopy(tempVertexArray[i][j], point);
point[0] -= shadevector[0]*(point[2]+lheight);
point[1] -= shadevector[1]*(point[2]+lheight);
point[2] = height;
VA_SetElem3(vertexArray[rb_vertex], point[0], point[1], point[2]);
VA_SetElem4(colorArray[rb_vertex], 0, 0, 0, thisAlpha);
rb_vertex++;
}
for (j=0; j < mesh.num_tris; j++)
{
indexArray[rb_index++] = mesh.indexes[3*j+0];
indexArray[rb_index++] = mesh.indexes[3*j+1];
indexArray[rb_index++] = mesh.indexes[3*j+2];
}
}
RB_DrawArrays (GL_TRIANGLES);
GL_Stencil (false, false);
}
/*
=============
R_DrawStretchImage
=============
*/
void R_DrawStretchImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *gl, float alpha)
{
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
// Psychospaz's transparent console support
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST);
}
}
void DrawGLPolyChain(glpoly_t *p, float soffset, float toffset)
{
if (soffset == 0 && toffset == 0)
{
for (; p != 0; p = p->chain)
{
float *v;
int j;
v = p->verts[0];
for (j=0; j<p->numverts; j++, v+= VERTEXSIZE)
{
VA_SetElem2(tex_array[j],v[5],v[6]);
VA_SetElem3(vert_array[j],v[0],v[1],v[2]);
}
// if (qgl.LockArraysEXT) qgl.LockArraysEXT(0,p->numverts);
qgl.DrawArrays (GL_POLYGON, 0, p->numverts);
// if (qgl.UnlockArraysEXT) qgl.UnlockArraysEXT();
}
}
else
{
for (; p != 0; p = p->chain)
{
float *v;
int j;
v = p->verts[0];
for (j=0; j<p->numverts; j++, v+= VERTEXSIZE)
{
VA_SetElem2(tex_array[j],(v[5]-soffset),(v[6]-toffset));
VA_SetElem3(vert_array[j],v[0],v[1],v[2]);
}
// if (qgl.LockArraysEXT) qgl.LockArraysEXT(0,p->numverts);
qgl.DrawArrays (GL_POLYGON, 0, p->numverts);
// if (qgl.UnlockArraysEXT) qgl.UnlockArraysEXT();
}
}
}
void R_DrawStretchRaw (int32_t x, int32_t y, int32_t w, int32_t h, const byte *raw, int32_t rawWidth, int32_t rawHeight) //qboolean noDraw)
{
int32_t i;
vec2_t texCoord[4], verts[4];
// Make sure everything is flushed if needed
//if (!noDraw)
// RB_RenderMesh();
// Update the texture as appropriate
GL_Bind(glMedia.rawtexture->texnum);
if (rawWidth == glMedia.rawtexture->upload_width && rawHeight == glMedia.rawtexture->upload_height)
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rawWidth, rawHeight, GL_RGBA, GL_UNSIGNED_BYTE, raw);
else {
glMedia.rawtexture->upload_width = rawWidth;
glMedia.rawtexture->upload_height = rawHeight;
glTexImage2D(GL_TEXTURE_2D, 0, gl_raw_tex_solid_format, rawWidth, rawHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, raw);
}
//if (noDraw)
// return;
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// Draw it
Vector2Set(texCoord[0], 0, 0);
Vector2Set(texCoord[1], 1, 0);
Vector2Set(texCoord[2], 1, 1);
Vector2Set(texCoord[3], 0, 1);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1, 1, 1, 1);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
/*
======================
R_DrawFill
Fills a box of pixels with a
24-bit color w/ alpha
===========================
*/
void R_DrawFill (int32_t x, int32_t y, int32_t w, int32_t h, int32_t red, int32_t green, int32_t blue, int32_t alpha)
{
int32_t i;
vec2_t verts[4];
red = min(red, 255);
green = min(green, 255);
blue = min(blue, 255);
alpha = max(min(alpha, 255), 1);
// GL_DisableTexture (0);
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
GL_Bind (glMedia.whitetexture->texnum);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], red*DIV255, green*DIV255, blue*DIV255, alpha*DIV255);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
GL_DepthMask (true);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
// GL_EnableTexture (0);
}
void MakeSkyVec (float s, float t, int axis)
{
vec3_t v, b;
int j, k;
//Knightmare- 12/26/2001- variable back clipping plane distance
b[0] = s * r_skydistance->value;
b[1] = t * r_skydistance->value;
b[2] = r_skydistance->value;
//end Knightmare
for (j=0 ; j<3 ; j++)
{
k = st_to_vec[axis][j];
if (k < 0)
v[j] = -b[-k - 1];
else
v[j] = b[k - 1];
}
// avoid bilerp seam
s = (s+1)*0.5;
t = (t+1)*0.5;
if (s < sky_min)
s = sky_min;
else if (s > sky_max)
s = sky_max;
if (t < sky_min)
t = sky_min;
else if (t > sky_max)
t = sky_max;
t = 1.0 - t;
VA_SetElem2(texCoordArray[0][rb_vertex], s, t);
VA_SetElem3(vertexArray[rb_vertex], v[0], v[1], v[2]);
VA_SetElem4(colorArray[rb_vertex], 1.0f, 1.0f, 1.0f, 1.0f);
rb_vertex++;
}
/*
=============
R_DrawTileImage
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void R_DrawTileImage (int32_t x, int32_t y, int32_t w, int32_t h, image_t *image)
{
int32_t i;
vec2_t texCoord[4], verts[4];
GL_Bind (image->texnum);
/*
Vector2Set(texCoord[0], x/64.0, y/64.0);
Vector2Set(texCoord[1], (x+w)/64.0, y/64.0);
Vector2Set(texCoord[2], (x+w)/64.0, (y+h)/64.0);
Vector2Set(texCoord[3], x/64.0, (y+h)/64.0);
*/
Vector2Set(texCoord[0], (float)x/(float)image->width, (float)y/(float)image->height);
Vector2Set(texCoord[1], (float)(x+w)/(float)image->width, (float)y/(float)image->height);
Vector2Set(texCoord[2], (float)(x+w)/(float)image->width, (float)(y+h)/(float)image->height);
Vector2Set(texCoord[3], (float)x/(float)image->width, (float)(y+h)/(float)image->height);
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+w, y);
Vector2Set(verts[2], x+w, y+h);
Vector2Set(verts[3], x, y+h);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, 1.0);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
}
/*
=============
R_DrawWarpSurface
Does a water warp on the pre-fragmented glpoly_t chain.
added Psychospaz's lightmaps on alpha surfaces
=============
*/
void R_DrawWarpSurface (msurface_t *fa, float alpha, qboolean render)
{
glpoly_t *p, *bp;
float *v, s, t, scroll, dstscroll, rdt = r_newrefdef.time;
vec3_t point;
int i;
qboolean light = r_warp_lighting->value && !r_fullbright->value && !(fa->texinfo->flags & SURF_NOLIGHTENV);
qboolean texShaderNV = glConfig.NV_texshaders && glConfig.multitexture
&& ( (!glConfig.arb_fragment_program && r_pixel_shader_warp->value)
|| (glConfig.arb_fragment_program && r_pixel_shader_warp->value > 1) );
c_brush_surfs++;
dstscroll = -64 * ( (r_newrefdef.time*0.15) - (int)(r_newrefdef.time*0.15) );
if (fa->texinfo->flags & SURF_FLOWING)
scroll = -64 * ( (r_newrefdef.time*0.5) - (int)(r_newrefdef.time*0.5) );
else
scroll = 0.0f;
// rb_vertex = rb_index = 0;
for (bp = fa->polys; bp; bp = bp->next)
{
c_brush_polys += (bp->numverts-2);
p = bp;
if (RB_CheckArrayOverflow (p->numverts, (p->numverts-2)*3))
RB_RenderWarpSurface (fa);
for (i = 0; i < p->numverts-2; i++) {
indexArray[rb_index++] = rb_vertex;
indexArray[rb_index++] = rb_vertex+i+1;
indexArray[rb_index++] = rb_vertex+i+2;
}
for (i=0, v=p->verts[0]; i<p->numverts; i++, v+=VERTEXSIZE)
{
#if !id386
s = v[3] + r_turbsin[(int)((v[4]*0.125+rdt) * TURBSCALE) & 255];
t = v[4] + r_turbsin[(int)((v[3]*0.125+rdt) * TURBSCALE) & 255];
#else
s = v[3] + r_turbsin[Q_ftol( ((v[4]*0.125+rdt) * TURBSCALE) ) & 255];
t = v[4] + r_turbsin[Q_ftol( ((v[3]*0.125+rdt) * TURBSCALE) ) & 255];
#endif
s += scroll;
s *= DIV64;
t *= DIV64;
//=============== Water waves ========================
VectorCopy(v, point);
if ( r_waterwave->value > 0 && !(fa->texinfo->flags & SURF_FLOWING)
&& fa->plane->normal[2] > 0
&& fa->plane->normal[2] > fa->plane->normal[0]
&& fa->plane->normal[2] > fa->plane->normal[1] )
point[2] = v[2] + r_waterwave->value * sin(v[0]*0.025+rdt) * sin(v[2]*0.05+rdt);
//=============== End water waves ====================
// MrG - texture shader waterwarp
if (texShaderNV) {
VA_SetElem2(texCoordArray[0][rb_vertex], (v[3]+dstscroll)*DIV64, v[4]*DIV64);
VA_SetElem2(texCoordArray[1][rb_vertex], s, t);
}
else {
VA_SetElem2(texCoordArray[0][rb_vertex], s, t);
VA_SetElem2(texCoordArray[1][rb_vertex], (v[3]+dstscroll)*DIV64, v[4]*DIV64);
}
if (light && p->vertexlight && p->vertexlightset)
VA_SetElem4(colorArray[rb_vertex],
(float)(p->vertexlight[i*3+0]*DIV255),
(float)(p->vertexlight[i*3+1]*DIV255),
(float)(p->vertexlight[i*3+2]*DIV255), alpha);
else
VA_SetElem4(colorArray[rb_vertex], glState.inverse_intensity, glState.inverse_intensity, glState.inverse_intensity, alpha);
VA_SetElem3(vertexArray[rb_vertex], point[0], point[1], point[2]);
rb_vertex++;
}
}
if (render)
RB_RenderWarpSurface (fa);
}
void R_DrawCameraEffect (void)
{
image_t *image[2];
int32_t x, y, w, h, i, j;
float texparms[2][4];
vec2_t texCoord[4];
vec3_t verts[4];
renderparms_t cameraParms;
image[0] = R_DrawFindPic ("/gfx/2d/screenstatic.tga");
image[1] = R_DrawFindPic ("/gfx/2d/scanlines.tga");
if (!image[0] || !image[1])
return;
x = y = 0; w = vid.width; h = vid.height;
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_BlendFunc (GL_DST_COLOR, GL_SRC_COLOR);
GL_DepthMask (false);
VectorSet(verts[0], x, y, 0);
VectorSet(verts[1], x+w, y, 0);
VectorSet(verts[2], x+w, y+h, 0);
VectorSet(verts[3], x, y+h, 0);
Vector4Set(texparms[0], 2, 2, -30, 10);
Vector4Set(texparms[1], 1, 10, 0, 0);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
rb_vertex = 4;
for (i=0; i<2; i++)
{
GL_Bind (image[i]->texnum);
Vector2Set(texCoord[0], x/image[i]->width, y/image[i]->height);
Vector2Set(texCoord[1], (x+w)/image[i]->width, y/image[i]->height);
Vector2Set(texCoord[2], (x+w)/image[i]->width, (y+h)/image[i]->height);
Vector2Set(texCoord[3], x/image[i]->width, (y+h)/image[i]->height);
Mod_SetRenderParmsDefaults (&cameraParms);
cameraParms.scale_x = texparms[i][0];
cameraParms.scale_y = texparms[i][1];
cameraParms.scroll_x = texparms[i][2];
cameraParms.scroll_y = texparms[i][3];
RB_ModifyTextureCoords (&texCoord[0][0], &verts[0][0], 4, cameraParms);
for (j=0; j<4; j++) {
VA_SetElem2(texCoordArray[0][j], texCoord[j][0], texCoord[j][1]);
VA_SetElem3(vertexArray[j], verts[j][0], verts[j][1], verts[j][2]);
VA_SetElem4(colorArray[j], 1, 1, 1, 1);
}
RB_DrawArrays ();
}
rb_vertex = rb_index = 0;
GL_DepthMask (true);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Disable (GL_BLEND);
GL_TexEnv (GL_REPLACE);
GL_Enable (GL_ALPHA_TEST);
}
/*
=================
R_DrawAliasFrameLerp
=================
*/
void R_DrawAliasFrameLerp (maliasmodel_t *paliashdr, entity_t *e)
{
int i, j, k, meshnum;
maliasframe_t *frame, *oldframe;
maliasmesh_t mesh;
maliasvertex_t *v, *ov;
vec3_t move, delta, vectors[3];
vec3_t curScale, oldScale, curNormal, oldNormal;
vec3_t tempNormalsArray[MD3_MAX_VERTS];
vec2_t tempSkinCoord;
vec3_t meshlight, lightcolor;
float alpha, meshalpha, thisalpha, shellscale, frontlerp, backlerp = e->backlerp;
image_t *skin;
renderparms_t skinParms;
qboolean shellModel = e->flags & ( RF_SHELL_RED | RF_SHELL_GREEN | RF_SHELL_BLUE | RF_SHELL_DOUBLE | RF_SHELL_HALF_DAM);
frontlerp = 1.0 - backlerp;
if (e->flags & RF_TRANSLUCENT)
alpha = e->alpha;
else
alpha = 1.0;
frame = paliashdr->frames + e->frame;
oldframe = paliashdr->frames + e->oldframe;
VectorScale(frame->scale, frontlerp, curScale);
VectorScale(oldframe->scale, backlerp, oldScale);
// move should be the delta back to the previous frame * backlerp
VectorSubtract (e->oldorigin, e->origin, delta);
AngleVectors (e->angles, vectors[0], vectors[1], vectors[2]);
move[0] = DotProduct (delta, vectors[0]); // forward
move[1] = -DotProduct (delta, vectors[1]); // left
move[2] = DotProduct (delta, vectors[2]); // up
VectorAdd (move, oldframe->translate, move);
for (i=0 ; i<3 ; i++)
move[i] = backlerp*move[i] + frontlerp*frame->translate[i];
R_SetVertexOverbrights(true);
R_SetShellBlend (true);
// new outer loop for whole model
for (k=0, meshnum=0; k < paliashdr->num_meshes; k++, meshnum++)
{
mesh = paliashdr->meshes[k];
skinParms = mesh.skins[e->skinnum].renderparms;
// select skin
if (e->skin)
skin = e->skin; // custom player skin
else
skin = currentmodel->skins[k][e->skinnum];
if (!skin)
skin = r_notexture;
if ( !shellModel )
GL_Bind(skin->texnum);
else if (FlowingShell())
alpha = 0.7;
// md3 skin scripting
if (skinParms.nodraw)
continue; // skip this mesh for this skin
if (skinParms.twosided)
GL_Disable(GL_CULL_FACE);
if (skinParms.alphatest && !shellModel)
GL_Enable(GL_ALPHA_TEST);
if (skinParms.fullbright)
VectorSet(meshlight, 1.0f, 1.0f, 1.0f);
else
VectorCopy(shadelight, meshlight);
meshalpha = alpha * skinParms.basealpha;
if (meshalpha < 1.0f || skinParms.blend)
GL_Enable (GL_BLEND);
else
GL_Disable (GL_BLEND);
if (skinParms.blend && !shellModel)
GL_BlendFunc (skinParms.blendfunc_src, skinParms.blendfunc_dst);
else
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// md3 skin scripting
v = mesh.vertexes + e->frame*mesh.num_verts;
ov = mesh.vertexes + e->oldframe*mesh.num_verts;
rb_vertex = 0;
for (i=0; i<mesh.num_verts; i++, v++, ov++)
{
// lerp verts
curNormal[0] = r_sinTable[v->normal[0]] * r_cosTable[v->normal[1]];
curNormal[1] = r_sinTable[v->normal[0]] * r_sinTable[v->normal[1]];
curNormal[2] = r_cosTable[v->normal[0]];
oldNormal[0] = r_sinTable[ov->normal[0]] * r_cosTable[ov->normal[1]];
oldNormal[1] = r_sinTable[ov->normal[0]] * r_sinTable[ov->normal[1]];
oldNormal[2] = r_cosTable[ov->normal[0]];
VectorSet ( tempNormalsArray[i],
curNormal[0] + (oldNormal[0] - curNormal[0])*backlerp,
curNormal[1] + (oldNormal[1] - curNormal[1])*backlerp,
curNormal[2] + (oldNormal[2] - curNormal[2])*backlerp );
if (shellModel)
shellscale = (e->flags & RF_WEAPONMODEL) ? WEAPON_SHELL_SCALE: POWERSUIT_SCALE;
else
shellscale = 0.0;
VectorSet ( tempVertexArray[meshnum][i],
move[0] + ov->point[0]*oldScale[0] + v->point[0]*curScale[0] + tempNormalsArray[i][0]*shellscale,
move[1] + ov->point[1]*oldScale[1] + v->point[1]*curScale[1] + tempNormalsArray[i][1]*shellscale,
move[2] + ov->point[2]*oldScale[2] + v->point[2]*curScale[2] + tempNormalsArray[i][2]*shellscale );
// calc lighting and alpha
if (shellModel)
VectorCopy(meshlight, lightcolor);
else
R_LightAliasModel(meshlight, tempNormalsArray[i], lightcolor, v->lightnormalindex, !skinParms.nodiffuse);
//thisalpha = R_CalcEntAlpha(meshalpha, tempVertexArray[meshnum][i]);
thisalpha = meshalpha;
// get tex coords
if (shellModel && FlowingShell()) {
tempSkinCoord[0] = (tempVertexArray[meshnum][i][0] + tempVertexArray[meshnum][i][1]) / 40.0 + shellFlowH;
tempSkinCoord[1] = tempVertexArray[meshnum][i][2] / 40.0 + shellFlowV;
} else {
tempSkinCoord[0] = mesh.stcoords[i].st[0];
tempSkinCoord[1] = mesh.stcoords[i].st[1];
}
// add to arrays
VA_SetElem2(texCoordArray[0][rb_vertex], tempSkinCoord[0], tempSkinCoord[1]);
VA_SetElem3(vertexArray[rb_vertex], tempVertexArray[meshnum][i][0], tempVertexArray[meshnum][i][1], tempVertexArray[meshnum][i][2]);
VA_SetElem4(colorArray[rb_vertex], lightcolor[0], lightcolor[1], lightcolor[2], thisalpha);
rb_vertex++;
}
if (!shellModel)
RB_ModifyTextureCoords (&texCoordArray[0][0][0], &vertexArray[0][0], rb_vertex, skinParms);
// set indices for each triangle and draw
rb_index = 0;
for (j=0; j < mesh.num_tris; j++)
{
indexArray[rb_index++] = mesh.indexes[3*j+0];
indexArray[rb_index++] = mesh.indexes[3*j+1];
indexArray[rb_index++] = mesh.indexes[3*j+2];
}
RB_DrawArrays (GL_TRIANGLES);
// glow pass
if (mesh.skins[e->skinnum].glowimage && !shellModel)
{
float glowcolor;
if (skinParms.glow.type > -1)
glowcolor = RB_CalcGlowColor (skinParms);
else
glowcolor = 1.0;
qglDisableClientState (GL_COLOR_ARRAY);
qglColor4f(glowcolor, glowcolor, glowcolor, 1.0);
GL_Enable (GL_BLEND);
GL_BlendFunc (GL_ONE, GL_ONE);
GL_Bind(mesh.skins[e->skinnum].glowimage->texnum);
RB_DrawArrays (GL_TRIANGLES);
qglEnableClientState (GL_COLOR_ARRAY);
qglColor4f(1.0, 1.0, 1.0, 1.0);
}
// envmap pass
if (skinParms.envmap > 0.0f && !shellModel)
{
GL_Enable (GL_BLEND);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
qglTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
// apply alpha to array
for (i=0; i<mesh.num_verts; i++)
//colorArray[i][3] = R_CalcEntAlpha(meshalpha*skinParms.envmap, tempVertexArray[meshnum][i]);
colorArray[i][3] = meshalpha*skinParms.envmap;
GL_Bind(r_envmappic->texnum);
qglEnable(GL_TEXTURE_GEN_S);
qglEnable(GL_TEXTURE_GEN_T);
RB_DrawArrays (GL_TRIANGLES);
qglDisable(GL_TEXTURE_GEN_S);
qglDisable(GL_TEXTURE_GEN_T);
}
RB_DrawMeshTris (GL_TRIANGLES, 1);
// md3 skin scripting
if (skinParms.twosided)
GL_Enable(GL_CULL_FACE);
if (skinParms.alphatest && !shellModel)
GL_Disable(GL_ALPHA_TEST);
GL_Disable (GL_BLEND);
// md3 skin scripting
} // end new outer loop
R_SetShellBlend (false);
R_SetVertexOverbrights(false);
}
/*
================
R_DrawChar
Draws one variable sized graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void R_DrawChar (float x, float y, int32_t num, float scale,
int32_t red, int32_t green, int32_t blue, int32_t alpha, qboolean italic, qboolean last)
{
int32_t row, col;
float frow, fcol, size, cscale, italicAdd;
qboolean addChar = true;
const vec_t r = min(red, 255)*DIV255;
const vec_t g = min(green, 255)*DIV255;
const vec_t b = min(blue, 255)*DIV255;
const vec_t a = max(min(alpha, 255), 1)*DIV255;
const vec4_t color[4] = {
{r,g,b,a},
{r,g,b,a},
{r,g,b,a},
{r,g,b,a}
};
num &= 255;
if ((num & 127) == 32) // space
addChar = false;
if (y <= -(scale * DEFAULT_FONT_SIZE)) // totally off screen
addChar = false;
row = num >> 4;
col = num&15;
frow = row*0.0625;
fcol = col*0.0625;
size = 0.0625;
cscale = scale * DEFAULT_FONT_SIZE;
italicAdd = (italic) ? (cscale*0.25) : 0;
if (addChar)
{
if (char_count == 0)
rb_vertex = rb_index = 0;
if (rb_vertex + 4 >= MAX_VERTICES || rb_index + 6 >= MAX_INDICES)
R_FlushChars ();
indexArray[rb_index] = rb_vertex+0;
indexArray[rb_index+1] = rb_vertex+1;
indexArray[rb_index+2] = rb_vertex+2;
indexArray[rb_index+3] = rb_vertex+0;
indexArray[rb_index+4] = rb_vertex+2;
indexArray[rb_index+5] = rb_vertex+3;
rb_index += 6;
VA_SetElem2(texCoordArray[0][rb_vertex], fcol, frow);
VA_SetElem2(texCoordArray[0][rb_vertex+1], fcol + size, frow);
VA_SetElem2(texCoordArray[0][rb_vertex+2], fcol + size, frow + size);
VA_SetElem2(texCoordArray[0][rb_vertex+3], fcol, frow + size);
VA_SetElem3(vertexArray[rb_vertex], x+italicAdd, y, 0);
VA_SetElem3(vertexArray[rb_vertex+1], x+cscale+italicAdd, y, 0);
VA_SetElem3(vertexArray[rb_vertex+2], x+cscale-italicAdd, y+cscale, 0);
VA_SetElem3(vertexArray[rb_vertex+3], x-italicAdd, y+cscale, 0);
memcpy(colorArray[rb_vertex], color, sizeof(vec4_t) * 4);
rb_vertex += 4;
char_count++;
}
if (last)
R_FlushChars ();
}
/*
=================
R_DrawSpriteModel
=================
*/
void R_DrawSpriteModel (entity_t *e)
{
float alpha = 1.0f;
vec2_t texCoord[4];
vec3_t point[4];
dsprite_t *psprite;
dsprframe_t *frame;
float *up, *right;
int i;
// don't even bother culling, because it's just a single
// polygon without a surface cache
psprite = (dsprite_t *)currentmodel->extradata;
e->frame %= psprite->numframes;
frame = &psprite->frames[e->frame];
if (!frame) return;
c_alias_polys += 2;
// normal sprite
up = vup;
right = vright;
if (e->flags & RF_TRANSLUCENT)
alpha = e->alpha;
R_SetVertexRGBScale (true);
// Psychospaz's additive transparency
if ((currententity->flags & RF_TRANS_ADDITIVE) && (alpha != 1.0f))
{
GL_Enable (GL_BLEND);
GL_TexEnv (GL_MODULATE);
GL_Disable (GL_ALPHA_TEST);
GL_DepthMask (false);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE);
}
else
{
GL_TexEnv (GL_MODULATE);
if (alpha == 1.0f) {
GL_Enable (GL_ALPHA_TEST);
GL_DepthMask (true);
}
else {
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_DepthMask (false);
GL_Enable (GL_BLEND);
GL_Disable (GL_ALPHA_TEST);
}
}
GL_Bind(currentmodel->skins[0][e->frame]->texnum);
Vector2Set(texCoord[0], 0, 1);
Vector2Set(texCoord[1], 0, 0);
Vector2Set(texCoord[2], 1, 0);
Vector2Set(texCoord[3], 1, 1);
VectorMA (e->origin, -frame->origin_y, up, point[0]);
VectorMA (point[0], -frame->origin_x, right, point[0]);
VectorMA (e->origin, frame->height - frame->origin_y, up, point[1]);
VectorMA (point[1], -frame->origin_x, right, point[1]);
VectorMA (e->origin, frame->height - frame->origin_y, up, point[2]);
VectorMA (point[2], frame->width - frame->origin_x, right, point[2]);
VectorMA (e->origin, -frame->origin_y, up, point[3]);
VectorMA (point[3], frame->width - frame->origin_x, right, point[3]);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], point[i][0], point[i][1], point[i][2]);
VA_SetElem4(colorArray[rb_vertex], 1.0f, 1.0f, 1.0f, alpha);
rb_vertex++;
}
RB_DrawArrays ();
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_TexEnv (GL_REPLACE);
GL_DepthMask (true);
GL_Disable (GL_ALPHA_TEST);
GL_Disable (GL_BLEND);
R_SetVertexRGBScale (false);
RB_DrawMeshTris ();
rb_vertex = rb_index = 0;
}
/*
================
R_DrawChar
Draws one variable sized graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void R_DrawChar (float x, float y, int32_t num, float scale,
int32_t red, int32_t green, int32_t blue, int32_t alpha, qboolean italic, qboolean last)
{
int32_t row, col, i;
float frow, fcol, size, cscale, italicAdd;
vec2_t texCoord[4], verts[4];
qboolean addChar = true;
num &= 255;
if (alpha > 255)
alpha = 255;
else if (alpha < 1)
alpha = 1;
if ((num & 127) == 32) // space
addChar = false;
if (y <= -(scale * DEFAULT_FONT_SIZE)) // totally off screen
addChar = false;
row = num >> 4;
col = num&15;
frow = row*0.0625;
fcol = col*0.0625;
size = 0.0625;
cscale = scale * DEFAULT_FONT_SIZE;
italicAdd = (italic) ? (cscale*0.25) : 0;
if (addChar)
{
Vector2Set(texCoord[0], fcol, frow);
Vector2Set(texCoord[1], fcol + size, frow);
Vector2Set(texCoord[2], fcol + size, frow + size);
Vector2Set(texCoord[3], fcol, frow + size);
Vector2Set(verts[0], x+italicAdd, y);
Vector2Set(verts[1], x+cscale+italicAdd, y);
Vector2Set(verts[2], x+cscale-italicAdd, y+cscale);
Vector2Set(verts[3], x-italicAdd, y+cscale);
if (char_count == 0)
rb_vertex = rb_index = 0;
if (rb_vertex + 4 >= MAX_VERTICES || rb_index + 6 >= MAX_INDICES)
R_FlushChars ();
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], red*DIV255, green*DIV255, blue*DIV255, alpha*DIV255);
rb_vertex++;
}
char_count++;
}
if (last)
R_FlushChars ();
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
const vec4_t color[4] = {
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha},
{1.0, 1.0, 1.0, alpha}
};
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
rb_index = 6;
VA_SetElem2(texCoordArray[0][0], gl->sl, gl->tl);
VA_SetElem2(texCoordArray[0][1], gl->sh, gl->tl);
VA_SetElem2(texCoordArray[0][2], gl->sh, gl->th);
VA_SetElem2(texCoordArray[0][3], gl->sl, gl->th);
VA_SetElem3(vertexArray[0], x, y, 0);
VA_SetElem3(vertexArray[1], x+gl->width+xoff, y, 0);
VA_SetElem3(vertexArray[2], x+gl->width+xoff, y+gl->height+yoff, 0);
VA_SetElem3(vertexArray[3], x, y+gl->height+yoff, 0);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_vertex = 4;
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}
/*
=============
R_DrawScaledImage
Psychospaz's code for drawing stretched crosshairs
=============
*/
void R_DrawScaledImage (int32_t x, int32_t y, float scale, float alpha, image_t *gl)
{
float xoff, yoff;
float scale_x, scale_y;
int32_t i;
vec2_t texCoord[4], verts[4];
if (scrap_dirty)
Scrap_Upload ();
// add alpha support
if (gl->has_alpha || alpha < 1.0)
{
GL_Disable (GL_ALPHA_TEST);
GL_TexEnv (GL_MODULATE);
GL_Enable (GL_BLEND);
GL_DepthMask (false);
}
GL_Bind (gl->texnum);
scale_x = scale_y = scale;
scale_x *= gl->replace_scale_w; // scale down if replacing a pcx image
scale_y *= gl->replace_scale_h; // scale down if replacing a pcx image
Vector2Set(texCoord[0], gl->sl, gl->tl);
Vector2Set(texCoord[1], gl->sh, gl->tl);
Vector2Set(texCoord[2], gl->sh, gl->th);
Vector2Set(texCoord[3], gl->sl, gl->th);
xoff = gl->width*scale_x-gl->width;
yoff = gl->height*scale_y-gl->height;
Vector2Set(verts[0], x, y);
Vector2Set(verts[1], x+gl->width+xoff, y);
Vector2Set(verts[2], x+gl->width+xoff, y+gl->height+yoff);
Vector2Set(verts[3], x, y+gl->height+yoff);
rb_vertex = rb_index = 0;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], 1.0, 1.0, 1.0, alpha);
rb_vertex++;
}
RB_RenderMeshGeneric (false);
if (gl->has_alpha || alpha < 1.0)
{
GL_DepthMask (true);
GL_TexEnv (GL_REPLACE);
GL_Disable (GL_BLEND);
GL_Enable (GL_ALPHA_TEST); // add alpha support
}
}
/*
=============
R_BuildShadowVolume
based on code from BeefQuake R6
=============
*/
void R_BuildShadowVolume (maliasmodel_t *hdr, int meshnum, vec3_t light, float projectdistance, qboolean nocap)
{
int i, j, baseindex;
qboolean trianglefacinglight[MD3_MAX_TRIANGLES];
vec3_t v0, v1, v2, v3;
float thisAlpha;
maliasmesh_t mesh;
maliasvertex_t *verts;
mesh = hdr->meshes[meshnum];
if (mesh.skins[currententity->skinnum].renderparms.nodraw
|| mesh.skins[currententity->skinnum].renderparms.alphatest
|| mesh.skins[currententity->skinnum].renderparms.noshadow)
return;
verts = mesh.vertexes;
thisAlpha = aliasShadowAlpha; // was r_shadowalpha->value
for (i=0; i<mesh.num_tris; i++)
{
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+0]], v0);
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+1]], v1);
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+2]], v2);
trianglefacinglight[i] =
(light[0] - v0[0]) * ((v0[1] - v1[1]) * (v2[2] - v1[2]) - (v0[2] - v1[2]) * (v2[1] - v1[1]))
+ (light[1] - v0[1]) * ((v0[2] - v1[2]) * (v2[0] - v1[0]) - (v0[0] - v1[0]) * (v2[2] - v1[2]))
+ (light[2] - v0[2]) * ((v0[0] - v1[0]) * (v2[1] - v1[1]) - (v0[1] - v1[1]) * (v2[0] - v1[0])) > 0;
}
shadow_va = shadow_index = 0;
for (i=0; i<mesh.num_tris; i++)
{
if (!trianglefacinglight[i])
continue;
if (mesh.trneighbors[i*3+0] < 0 || !trianglefacinglight[mesh.trneighbors[i*3+0]])
{
baseindex = shadow_va;
for (j=0; j<3; j++)
{
v0[j]=tempVertexArray[meshnum][mesh.indexes[3*i+1]][j];
v1[j]=tempVertexArray[meshnum][mesh.indexes[3*i+0]][j];
v2[j]=v1[j]+((v1[j]-light[j]) * projectdistance);
v3[j]=v0[j]+((v0[j]-light[j]) * projectdistance);
}
VA_SetElem3(vertexArray[shadow_va], v0[0], v0[1], v0[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v1[0], v1[1], v1[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v2[0], v2[1], v2[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v3[0], v3[1], v3[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+1;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+3;
}
if (mesh.trneighbors[i*3+1] < 0 || !trianglefacinglight[mesh.trneighbors[i*3+1]])
{
baseindex = shadow_va;
for (j=0; j<3; j++)
{
v0[j]=tempVertexArray[meshnum][mesh.indexes[3*i+2]][j];
v1[j]=tempVertexArray[meshnum][mesh.indexes[3*i+1]][j];
v2[j]=v1[j]+((v1[j]-light[j]) * projectdistance);
v3[j]=v0[j]+((v0[j]-light[j]) * projectdistance);
}
VA_SetElem3(vertexArray[shadow_va], v0[0], v0[1], v0[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v1[0], v1[1], v1[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v2[0], v2[1], v2[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v3[0], v3[1], v3[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+1;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+3;
}
if (mesh.trneighbors[i*3+2] < 0 || !trianglefacinglight[mesh.trneighbors[i*3+2]])
{
baseindex = shadow_va;
for (j=0; j<3; j++)
{
v0[j]=tempVertexArray[meshnum][mesh.indexes[3*i+0]][j];
v1[j]=tempVertexArray[meshnum][mesh.indexes[3*i+2]][j];
v2[j]=v1[j]+((v1[j]-light[j]) * projectdistance);
v3[j]=v0[j]+((v0[j]-light[j]) * projectdistance);
}
VA_SetElem3(vertexArray[shadow_va], v0[0], v0[1], v0[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v1[0], v1[1], v1[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v2[0], v2[1], v2[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v3[0], v3[1], v3[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
shadow_va++;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+1;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+0;
indexArray[shadow_index++] = baseindex+2;
indexArray[shadow_index++] = baseindex+3;
}
}
if (nocap) return;
// cap the volume
for (i=0; i<mesh.num_tris; i++)
{
if (trianglefacinglight[i])
{
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+0]], v0);
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+1]], v1);
VectorCopy(tempVertexArray[meshnum][mesh.indexes[3*i+2]], v2);
VA_SetElem3(vertexArray[shadow_va], v0[0], v0[1], v0[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v1[0], v1[1], v1[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v2[0], v2[1], v2[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
continue;
}
for (j=0; j<3; j++)
{
v0[j]=tempVertexArray[meshnum][mesh.indexes[3*i+0]][j];
v1[j]=tempVertexArray[meshnum][mesh.indexes[3*i+1]][j];
v2[j]=tempVertexArray[meshnum][mesh.indexes[3*i+2]][j];
v0[j]=v0[j]+((v0[j]-light[j]) * projectdistance);
v1[j]=v1[j]+((v1[j]-light[j]) * projectdistance);
v2[j]=v2[j]+((v2[j]-light[j]) * projectdistance);
}
VA_SetElem3(vertexArray[shadow_va], v0[0], v0[1], v0[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v1[0], v1[1], v1[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
VA_SetElem3(vertexArray[shadow_va], v2[0], v2[1], v2[2]);
VA_SetElem4(colorArray[shadow_va], 0, 0, 0, thisAlpha);
indexArray[shadow_index++] = shadow_va;
shadow_va++;
}
}