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draw tank object using shader from model file

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This commit is contained in:
Josh Holtrop 2012-09-08 00:12:36 -04:00
parent c70cc450cc
commit abb0d99553
2 changed files with 35 additions and 38 deletions
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71
src/client/Client.cc
View File

@ -65,7 +65,7 @@ Client::Client(bool fullscreen, bool compatibility_context,
{ {
cerr << "Error creating obj program" << endl; cerr << "Error creating obj program" << endl;
} }
if (!tank_obj.load("models/tank.obj", load_file)) if (!m_tank_obj.load("models/tank.obj", load_file))
{ {
cerr << "Error loading tank model" << endl; cerr << "Error loading tank model" << endl;
} }
@ -183,53 +183,50 @@ void Client::update(double elapsed_time)
void Client::draw_players() void Client::draw_players()
{ {
static const float vertices[][3] = { GLint uniform_locations[4];
{1, 1, 1}, const char *uniforms[] = { "ambient", "diffuse", "specular", "shininess" };
{-1, 1, 1}, m_obj_program.get_uniform_locations(uniforms, 4, uniform_locations);
{-1, -1, 1},
{1, -1, 1},
{1, 1, -1},
{-1, 1, -1},
{-1, -1, -1},
{1, -1, -1}
};
static const int quads[][4] = {
{0, 1, 2, 3},
{0, 3, 7, 4},
{2, 1, 5, 6},
{3, 2, 6, 7},
{1, 0, 4, 5},
{5, 4, 7, 6}
};
glPushMatrix(); glPushMatrix();
glTranslatef(m_player->x, m_player->y, 40); glTranslatef(m_player->x, m_player->y, 40);
glRotatef(m_player->direction * 180.0 / M_PI, 0, 0, 1); glRotatef(m_player->direction * 180.0 / M_PI, 0, 0, 1);
glPushAttrib(GL_POLYGON_BIT); glUseProgram(m_obj_program.get_id());
glEnable(GL_POLYGON_OFFSET_LINE); m_tank_obj.bindBuffers();
for (int t = 0; t <= 1; t++) glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
int stride = m_tank_obj.getStride();
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,
stride, (GLvoid *) m_tank_obj.getVertexOffset());
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE,
stride, (GLvoid *) m_tank_obj.getNormalOffset());
for (map<string, WFObj::Material>::iterator it =
m_tank_obj.getMaterials().begin();
it != m_tank_obj.getMaterials().end();
it++)
{ {
if (t == 0) WFObj::Material & m = it->second;
if (m.flags & WFObj::Material::SHININESS_BIT)
{ {
glColor3f(0.8, 0, 0); glUniform1f(uniform_locations[3], m.shininess);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
} }
else if (m.flags & WFObj::Material::AMBIENT_BIT)
{ {
glColor3f(0, 0, 0); glUniform4fv(uniform_locations[0], 1, &m.ambient[0]);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
} }
for (unsigned int i = 0; i < sizeof(quads) / sizeof(quads[0]); i++) if (m.flags & WFObj::Material::DIFFUSE_BIT)
{ {
glBegin(GL_QUADS); glUniform4fv(uniform_locations[1], 1, &m.diffuse[0]);
for (int j = 0; j < 4; j++)
{
const float * vertex = &vertices[quads[i][j]][0];
glVertex3f(vertex[0] * 20, vertex[1] * 10, vertex[2] * 6);
}
glEnd();
} }
if (m.flags & WFObj::Material::SPECULAR_BIT)
{
glUniform4fv(uniform_locations[2], 1, &m.specular[0]);
}
glDrawElements(GL_TRIANGLES, m.num_vertices,
GL_UNSIGNED_SHORT,
(GLvoid *) (sizeof(GLushort) * m.first_vertex));
} }
glPopAttrib(); glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
glPopMatrix(); glPopMatrix();
} }

2
src/client/Client.h
View File

@ -28,7 +28,7 @@ class Client
int m_width; int m_width;
int m_height; int m_height;
GLProgram m_obj_program; GLProgram m_obj_program;
WFObj tank_obj; WFObj m_tank_obj;
}; };
#endif #endif