diff options
Diffstat (limited to 'render.c')
| -rw-r--r-- | render.c | 173 |
1 files changed, 102 insertions, 71 deletions
@@ -1,69 +1,22 @@ -#include <GL/gl.h> +#include <stdlib.h> #include <math.h> -#include <zoom/render.h> -#include <zoom/player.h> -#include <zoom/level.h> -#include <zoom/texture.h> +#include <GL/gl.h> #include <neofx/math.h> +#include <zoom/level.h> +#include <zoom/light.h> +#include <zoom/player.h> +#include <zoom/render.h> + extern PLAYER player; extern LEVEL level; extern GLuint sphere; -extern LIGHT light; +extern int nLights; +extern LIGHT *lights; +extern GLuint lightmap; -void RenderWall(WALL w, GLuint *textures) { - int i; - float d, s, t; - VECTOR v, v1, v2; - VERTEX p; - - glBindTexture(GL_TEXTURE_2D, textures[w.texture]); - - d = VectorDot(w.normal, VectorSub(w.vertices[0], light.pos)); - - if(d >= 0) { - glActiveTexture(GL_TEXTURE0); - glDisable(GL_TEXTURE_2D); - - glBegin(GL_TRIANGLES); - - for(i = 0; i < 3; i++) { - glMultiTexCoord2fv(GL_TEXTURE1, (GLfloat*)&w.texcoords[i]); - glVertex3fv((GLfloat*)&w.vertices[i]); - } - - glEnd(); - - glEnable(GL_TEXTURE_2D); - glActiveTexture(GL_TEXTURE1); - - return; - } - - p = VectorAdd(light.pos, VectorMul(w.normal, d)); - - v1 = VectorNormalize(VectorSub(w.vertices[0], w.vertices[1])); - v2 = VectorCross(v1, w.normal); - - glBegin(GL_TRIANGLES); - - glNormal3fv((GLfloat*)&w.normal); - - for(i = 0; i < 3; i++) { - v = VectorSub(w.vertices[i], p); - s = VectorDot(v, v1)*0.005 / d + 0.5; - t = VectorDot(v, v2)*0.005 / d + 0.5; - glMultiTexCoord2f(GL_TEXTURE0, s, t); - glMultiTexCoord2fv(GL_TEXTURE1, (GLfloat*)&w.texcoords[i]); - glVertex3fv((GLfloat*)&w.vertices[i]); - } - - glEnd(); -} void Render() { - //GLfloat light_position[] = { 0.0, 0.0, 0.0, 1.0 }; - //GLfloat light_emission[] = {1.0, 1.0, 1.0, 1.0}; GLfloat std_emission[] = {0.0, 0.0, 0.0, 1.0}; MATRIX rotate = { player.rotycos, 0.0, -player.rotysin, 0.0, @@ -71,10 +24,14 @@ void Render() { player.rotysin, 0.0, player.rotycos, 0.0, 0.0, 0.0, 0.0, 1.0 }; - COLOR color_light = {1.0, 1.0, 1.0}; - COLOR color_ambient = {0.1, 0.1, 0.1}; + POLYGON_LIST *room; + int i, j, k; + float d; + VECTOR v, v1, v2; + VERTEX p; + COLOR c; + - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glRotatef(player.rotx, 1.0, 0.0, 0.0); @@ -83,21 +40,95 @@ void Render() { glTranslatef(-player.pos.x, -player.pos.y, -player.pos.z); - //glLightfv(GL_LIGHT0, GL_POSITION, light_position); - glPushMatrix(); + room = DrawRoom(&level, player.room); + + glDepthMask(GL_TRUE); + glDepthFunc(GL_LESS); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); + + glBlendFunc(GL_ONE, GL_ONE); + + glColor3f(0.0, 0.0, 0.0); + glTexCoord2f(0.0, 0.0); + + glBegin(GL_TRIANGLES); + + for(i = 0; i < room->nPolygons; i++) { + glVertex3fv((GLfloat*)&room->polygons[i].vertices[0]); + glVertex3fv((GLfloat*)&room->polygons[i].vertices[1]); + glVertex3fv((GLfloat*)&room->polygons[i].vertices[2]); + } + + glEnd(); + + glDepthFunc(GL_EQUAL); + glDepthMask(GL_FALSE); + + glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + + glBindTexture(GL_TEXTURE_2D, lightmap); + + for(i = 0; i < nLights; i++) { + glBegin(GL_TRIANGLES); + + for(j = 0; j < room->nPolygons; j++) { + d = VectorDot(room->polygons[j].normal, VectorSub(room->polygons[j].vertices[0], lights[i].pos)); + + if(d >= 0) continue; + + c = VectorMul(lights[i].diffuse, 1.0/((nLights+1)*d*d)); + glColor3fv((GLfloat*)&c); + + p = VectorAdd(lights[i].pos, VectorMul(room->polygons[j].normal, d)); + + v1 = VectorNormalize(VectorSub(room->polygons[j].vertices[0], room->polygons[j].vertices[1])); + v2 = VectorCross(v1, room->polygons[j].normal); + + for(k = 0; k < 3; k++) { + v = VectorSub(room->polygons[j].vertices[k], p); + + glTexCoord2f(VectorDot(v, v1)*0.04 / d + 0.5, VectorDot(v, v2)*0.04 / d + 0.5); + glVertex3fv((GLfloat*)&room->polygons[j].vertices[k]); + } + } + + glEnd(); + } + + glBlendFunc(GL_DST_COLOR, GL_ZERO); + + glColor3f(1.0, 1.0, 1.0); + + /*for(i = 0; i < room->nPolygons; i++) { + glBindTexture(GL_TEXTURE_2D, room->polygons[i].texture); + + glBegin(GL_TRIANGLES); + + glTexCoord2fv((GLfloat*)&room->polygons[i].texcoords[0]); + glVertex3fv((GLfloat*)&room->polygons[i].vertices[0]); + glTexCoord2fv((GLfloat*)&room->polygons[i].texcoords[1]); + glVertex3fv((GLfloat*)&room->polygons[i].vertices[1]); + glTexCoord2fv((GLfloat*)&room->polygons[i].texcoords[2]); + glVertex3fv((GLfloat*)&room->polygons[i].vertices[2]); + + glEnd(); + }*/ + + free(room); + + ApplyLightScale(); + + /*glPushMatrix(); glDisable(GL_TEXTURE_2D); - glColor3fv((GLfloat*)&color_light); - //glMaterialfv(GL_FRONT, GL_EMISSION, light_emission); - glTranslatef(light.pos.x, light.pos.y, light.pos.z); + glColor3f(1.0, 1.0, 1.0); + glTranslatef(lights[0].pos.x, lights[0].pos.y, lights[0].pos.z); glScalef(0.1, 0.1, 0.1); glCallList(sphere); - //glMaterialfv(GL_FRONT, GL_EMISSION, std_emission); glEnable(GL_TEXTURE_2D); - glPopMatrix(); - - glColor3fv((GLfloat*)&color_ambient); - - DrawRoom(&level, player.room); + glPopMatrix();*/ glFlush(); } |