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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@932 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
Lee Salzman
2007-04-06 08:59:50 +00:00
parent 960e89416f
commit 3f200a7009
12 changed files with 266 additions and 110 deletions
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source/src/rendergl.cpp
+133 -38
View File
@@ -194,6 +194,10 @@ void blendbox(int x1, int y1, int x2, int y2, bool border, int tex)
glDepthMask(GL_TRUE);
}
VARP(fov, 90, 100, 120);
VAR(fog, 64, 180, 1024);
VAR(fogcolour, 0, 0x8099B3, 0xFFFFFF);
physent *camera1 = NULL;
void trypitch(int i) { camera1->pitch = (float)i; }
@@ -231,6 +235,112 @@ void transplayer()
glTranslatef(-camera1->o.x, -camera1->o.z, -camera1->o.y);
}
void genclipmatrix(float a, float b, float c, float d, GLfloat matrix[16])
{
// transform the clip plane into camera space
GLdouble clip[4] = {a, b, c, d};
glClipPlane(GL_CLIP_PLANE0, clip);
glGetClipPlane(GL_CLIP_PLANE0, clip);
glGetFloatv(GL_PROJECTION_MATRIX, matrix);
float x = ((clip[0]<0 ? -1 : (clip[0]>0 ? 1 : 0)) + matrix[8]) / matrix[0],
y = ((clip[1]<0 ? -1 : (clip[1]>0 ? 1 : 0)) + matrix[9]) / matrix[5],
w = (1 + matrix[10]) / matrix[14],
scale = 2 / (x*clip[0] + y*clip[1] - clip[2] + w*clip[3]);
matrix[2] = clip[0]*scale;
matrix[6] = clip[1]*scale;
matrix[10] = clip[2]*scale + 1.0f;
matrix[14] = clip[3]*scale;
}
bool reflecting = false;
GLuint reflecttex = 0;
int reflectlastsize = 0;
VARP(reflectres, 6, 7, 10);
VARP(waterreflect, 0, 1, 1);
void drawreflection(float hf, int w, int h, float changelod)
{
reflecting = true;
int size = 1<<reflectres;
while(size > w || size > h) size /= 2;
if(size!=reflectlastsize)
{
glDeleteTextures(1, &reflecttex);
reflecttex = 0;
}
if(!reflecttex)
{
glGenTextures(1, &reflecttex);
createtexture(reflecttex, size, size, NULL, 3, false, GL_RGB);
reflectlastsize = size;
}
resetcubes();
render_world(camera1->o.x, camera1->o.y, hf, changelod,
(int)camera1->yaw, -(int)camera1->pitch, (float)fov, size, size);
setupstrips();
glCullFace(GL_BACK);
glViewport(0, 0, size, size);
glClear(GL_DEPTH_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
transplayer();
glTranslatef(0, 2*hf, 0);
glScalef(1, -1, 1);
GLfloat clipmat[16];
genclipmatrix(0, 1, 0, 0.1f-hf, clipmat);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadMatrixf(clipmat);
glMatrixMode(GL_MODELVIEW);
renderstripssky();
glPushMatrix();
glLoadIdentity();
glRotatef(camera1->pitch, -1, 0, 0);
glRotatef(camera1->yaw, 0, 1, 0);
glRotatef(90, 1, 0, 0);
glScalef(1, 1, -1);
glColor3f(1, 1, 1);
glDisable(GL_FOG);
glDepthFunc(GL_GREATER);
draw_envbox(fog*4/3);
glDepthFunc(GL_LESS);
glEnable(GL_FOG);
glPopMatrix();
overbright(2);
renderstrips();
renderentities();
renderclients();
overbright(1);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glCullFace(GL_FRONT);
glViewport(0, 0, w, h);
glBindTexture(GL_TEXTURE_2D, reflecttex);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, size, size);
glDisable(GL_TEXTURE_2D);
reflecting = false;
}
bool minimap = false, minimapdirty = true;
int minimaplastsize = 0;
GLuint minimaptex = 0;
@@ -244,13 +354,12 @@ COMMAND(clearminimap, ARG_NONE);
VARFP(minimapres, 7, 9, 10, clearminimap());
void drawminimap()
void drawminimap(int w, int h)
{
if(!minimapdirty) return;
extern int scr_w, scr_h;
int size = 1<<minimapres;
while(size > scr_w || size > scr_h) size /= 2;
while(size > w || size > h) size /= 2;
if(size!=minimaplastsize)
{
glDeleteTextures(1, &minimaptex);
@@ -304,7 +413,7 @@ void drawminimap()
overbright(1);
float hf = hdr.waterlevel-0.3f;
renderwater(hf);
renderwater(hf, 0);
minimap = false;
@@ -316,17 +425,12 @@ void drawminimap()
glEnable(GL_FOG);
glDisable(GL_TEXTURE_2D);
glViewport(0, 0, scr_w, scr_h);
glViewport(0, 0, w, h);
glClearDepth(1.0);
}
VARP(fov, 90, 100, 120);
int xtraverts;
VAR(fog, 64, 180, 1024);
VAR(fogcolour, 0, 0x8099B3, 0xFFFFFF);
void drawhudgun(int w, int h, float aspect, int farplane)
{
if(scoped && player1->gunselect==GUN_SNIPER) return;
@@ -391,24 +495,9 @@ void readdepth(int w, int h, vec &pos)
pos.z = (float)worldz;
}
void invertperspective()
{
// This only generates a valid inverse matrix for matrices generated by gluPerspective()
GLdouble inv[16];
memset(inv, 0, sizeof(inv));
inv[0*4+0] = 1.0/pm[0*4+0];
inv[1*4+1] = 1.0/pm[1*4+1];
inv[2*4+3] = 1.0/pm[3*4+2];
inv[3*4+2] = -1.0;
inv[3*4+3] = pm[2*4+2]/pm[3*4+2];
glLoadMatrixd(inv);
}
void gl_drawframe(int w, int h, float changelod, float curfps)
{
drawminimap();
drawminimap(w, h);
recomputecamera();
@@ -423,22 +512,29 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
glFogfv(GL_FOG_COLOR, fogc);
glClearColor(fogc[0], fogc[1], fogc[2], 1.0f);
if(underwater)
{
fovy += sinf(lastmillis/1000.0f)*2.0f;
aspect += sinf(lastmillis/1000.0f+PI)*0.1f;
glFogi(GL_FOG_START, 0);
glFogi(GL_FOG_END, (fog+96)/8);
}
glClear((outsidemap(camera1) ? GL_COLOR_BUFFER_BIT : 0) | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
int farplane = fog*5/2;
gluPerspective(fovy, aspect, 0.15f, farplane);
glMatrixMode(GL_MODELVIEW);
if(underwater)
{
fovy += sinf(lastmillis/1000.0f)*2.0f;
aspect += sinf(lastmillis/1000.0f+PI)*0.1f;
float wfogc[4] = { hdr.watercolor[0]/255.0f, hdr.watercolor[1]/255.0f, hdr.watercolor[2]/255.0f, 1.0f };
glFogfv(GL_FOG_COLOR, wfogc);
glFogi(GL_FOG_START, 0);
glFogi(GL_FOG_END, (fog+96)/8);
}
else if(waterreflect)
{
extern int wx1;
if(wx1>=0) drawreflection(hf, w, h, changelod);
}
glClear((outsidemap(camera1) ? GL_COLOR_BUFFER_BIT : 0) | GL_DEPTH_BUFFER_BIT);
transplayer();
glEnable(GL_TEXTURE_2D);
@@ -495,7 +591,7 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
render_particles(curtime);
glDisable(GL_CULL_FACE);
int nquads = renderwater(hf);
int nquads = renderwater(hf, !waterreflect || underwater ? 0 : reflecttex);
glDisable(GL_FOG);
glDisable(GL_TEXTURE_2D);
@@ -508,7 +604,6 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
invertperspective();
extern vector<vertex> verts;
gl_drawhud(w, h, (int)curfps, nquads, verts.length(), underwater);