Moved OpenGL renderering code into its own class for future optimizations

This commit is contained in:
2018-09-20 09:07:39 -05:00
parent aa4a905bd8
commit 35b5ee948a
9 changed files with 294 additions and 241 deletions

View File

@@ -60,26 +60,8 @@ class IMICFPS
def setup
end
# Not advisable to put OpenGL code here, instead put it in Renderer.
def draw
handleGlError
glEnable(GL_NORMALIZE)
glPushMatrix
# Render bounding boxes before transformation is applied
render_bounding_box(model.bounding_box) if $debug
model.objects.each {|o| render_bounding_box(o.bounding_box, o.debug_color)} if $debug
glTranslatef(@x, @y, @z)
glRotatef(@x_rotation,1.0, 0, 0)
glRotatef(@y_rotation,0, 1.0, 0)
glRotatef(@z_rotation,0, 0, 1.0)
handleGlError
model.draw(@x, @y, @z, @scale, @backface_culling)
handleGlError
glPopMatrix
handleGlError
end
def update
@@ -117,162 +99,6 @@ class IMICFPS
return temp
end
def render_bounding_box(box, color = @debug_color)
box = normalize_bounding_box(box)
glEnableClientState(GL_VERTEX_ARRAY)
glEnableClientState(GL_COLOR_ARRAY)
glEnableClientState(GL_NORMAL_ARRAY)
_normals = [
0,1,0,
0,1,0,
0,1,0,
0,1,0,
0,1,0,
0,1,0,
0,-1,0,
0,-1,0,
0,-1,0,
0,-1,0,
0,-1,0,
0,-1,0,
0,0,1,
0,0,1,
0,0,1,
0,0,1,
0,0,1,
0,0,1,
1,0,0,
1,0,0,
1,0,0,
1,0,0,
1,0,0,
1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0,
-1,0,0
].pack("f*")
_colors = [
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue,
color.red, color.green, color.blue
].pack("f*")
_vertices = [
box.min_x, box.max_y, box.max_z,
box.min_x, box.max_y, box.min_z,
box.max_x, box.max_y, box.min_z,
box.min_x, box.max_y, box.max_z,
box.max_x, box.max_y, box.max_z,
box.max_x, box.max_y, box.min_z,
box.max_x, box.min_y, box.min_z,
box.max_x, box.min_y, box.max_z,
box.min_x, box.min_y, box.max_z,
box.max_x, box.min_y, box.min_z,
box.min_x, box.min_y, box.min_z,
box.min_x, box.min_y, box.max_z,
box.min_x, box.max_y, box.max_z,
box.min_x, box.max_y, box.min_z,
box.min_x, box.min_y, box.min_z,
box.min_x, box.min_y, box.max_z,
box.min_x, box.min_y, box.min_z,
box.min_x, box.max_y, box.max_z,
box.max_x, box.max_y, box.max_z,
box.max_x, box.max_y, box.min_z,
box.max_x, box.min_y, box.min_z,
box.max_x, box.min_y, box.max_z,
box.max_x, box.min_y, box.min_z,
box.max_x, box.max_y, box.max_z,
box.min_x, box.max_y, box.max_z,
box.max_x, box.max_y, box.max_z,
box.max_x, box.min_y, box.max_z,
box.min_x, box.max_y, box.max_z,
box.max_x, box.min_y, box.max_z,
box.min_x, box.min_y, box.max_z,
box.max_x, box.min_y, box.min_z,
box.min_x, box.min_y, box.min_z,
box.min_x, box.max_y, box.min_z,
box.max_x, box.min_y, box.min_z,
box.min_x, box.max_y, box.min_z,
box.max_x, box.max_y, box.min_z
]
_vertices_size = _vertices.size
_vertices = _vertices.pack("f*")
glVertexPointer(3, GL_FLOAT, 0, _vertices)
glColorPointer(3, GL_FLOAT, 0, _colors)
glNormalPointer(GL_FLOAT, 0, _normals)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
glDisable(GL_LIGHTING)
glDrawArrays(GL_TRIANGLES, 0, _vertices_size/3)
glEnable(GL_LIGHTING)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)
glDisableClientState(GL_VERTEX_ARRAY)
glDisableClientState(GL_COLOR_ARRAY)
glDisableClientState(GL_NORMAL_ARRAY)
end
def handleGlError
e = glGetError()
if e != GL_NO_ERROR