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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@936 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
Lee Salzman
2007-04-07 01:27:15 +00:00
parent b37bd5a9f1
commit 13de086fc6
6 changed files with 101 additions and 43 deletions
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source/src/rendergl.cpp
+62 -21
View File
@@ -253,50 +253,65 @@ void genclipmatrix(float a, float b, float c, float d, GLfloat matrix[16])
matrix[14] = clip[3]*scale;
}
bool reflecting = false;
GLuint reflecttex = 0;
bool reflecting = false, refracting = false;
GLuint reflecttex = 0, refracttex = 0;
int reflectlastsize = 0;
VARP(reflectres, 6, 7, 10);
VAR(reflectclip, 0, 3, 100);
VARP(waterreflect, 0, 1, 1);
VARP(waterrefract, 0, 0, 1);
void drawreflection(float hf, int w, int h, float changelod)
void drawreflection(float hf, int w, int h, float changelod, bool refract)
{
reflecting = true;
refracting = refract;
int size = 1<<reflectres;
while(size > w || size > h) size /= 2;
if(size!=reflectlastsize)
{
glDeleteTextures(1, &reflecttex);
reflecttex = 0;
if(reflecttex) glDeleteTextures(1, &reflecttex);
if(refracttex) glDeleteTextures(1, &refracttex);
reflecttex = refracttex = 0;
}
if(!reflecttex)
if(!reflecttex || (waterrefract && !refracttex))
{
glGenTextures(1, &reflecttex);
createtexture(reflecttex, size, size, NULL, 3, false, GL_RGB);
if(!reflecttex)
{
glGenTextures(1, &reflecttex);
createtexture(reflecttex, size, size, NULL, 3, false, GL_RGB);
}
if(!refracttex)
{
glGenTextures(1, &refracttex);
createtexture(refracttex, 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);
render_world(camera1->o.x, camera1->o.y, refract ? camera1->o.z : hf, changelod,
(int)camera1->yaw, (refract ? 1 : -1)*(int)camera1->pitch, (float)fov, size, size);
setupstrips();
glCullFace(GL_BACK);
if(!refract) 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);
if(!refract)
{
glTranslatef(0, 2*hf, 0);
glScalef(1, -1, 1);
}
GLfloat clipmat[16];
genclipmatrix(0, 1, 0, 0.1f-hf, clipmat);
genclipmatrix(0, refract ? -1 : 1, 0, refract ? 0.1f*reflectclip+hf : 0.1f*reflectclip-hf, clipmat);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadMatrixf(clipmat);
@@ -309,7 +324,7 @@ void drawreflection(float hf, int w, int h, float changelod)
glRotatef(camera1->pitch, -1, 0, 0);
glRotatef(camera1->yaw, 0, 1, 0);
glRotatef(90, 1, 0, 0);
glScalef(1, 1, -1);
if(!refract) glScalef(1, 1, -1);
glColor3f(1, 1, 1);
glDisable(GL_FOG);
glDepthFunc(GL_GREATER);
@@ -326,19 +341,41 @@ void drawreflection(float hf, int w, int h, float changelod)
overbright(1);
render_particles(0);
if(refract) glLoadIdentity();
glMatrixMode(GL_PROJECTION);
if(refract)
{
glLoadIdentity();
glOrtho(0, 1, 0, 1, -1, 1);
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4ubv(hdr.watercolor);
glBegin(GL_QUADS);
glVertex2i(0, 1);
glVertex2i(1, 1);
glVertex2i(1, 0);
glVertex2i(0, 0);
glEnd();
glDisable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glEnable(GL_DEPTH_TEST);
}
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glCullFace(GL_FRONT);
if(!refract) glCullFace(GL_FRONT);
glViewport(0, 0, w, h);
glBindTexture(GL_TEXTURE_2D, reflecttex);
glBindTexture(GL_TEXTURE_2D, refract ? refracttex : reflecttex);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, size, size);
glDisable(GL_TEXTURE_2D);
reflecting = false;
reflecting = refracting = false;
}
bool minimap = false, minimapdirty = true;
@@ -413,7 +450,7 @@ void drawminimap(int w, int h)
overbright(1);
float hf = hdr.waterlevel-0.3f;
renderwater(hf, 0);
renderwater(hf, 0, 0);
minimap = false;
@@ -530,7 +567,11 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
else if(waterreflect)
{
extern int wx1;
if(wx1>=0) drawreflection(hf, w, h, changelod);
if(wx1>=0)
{
drawreflection(hf, w, h, changelod, false);
if(waterrefract) drawreflection(hf, w, h, changelod, true);
}
}
glClear((outsidemap(camera1) ? GL_COLOR_BUFFER_BIT : 0) | GL_DEPTH_BUFFER_BIT);
@@ -591,7 +632,7 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
render_particles(curtime);
glDisable(GL_CULL_FACE);
int nquads = renderwater(hf, !waterreflect || underwater ? 0 : reflecttex);
int nquads = renderwater(hf, !waterreflect || underwater ? 0 : reflecttex, !waterreflect || !waterrefract || underwater ? 0 : refracttex);
glDisable(GL_FOG);
glDisable(GL_TEXTURE_2D);