cyberarm/i-mic-fps
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Modern 'GL now renders properly, camera works as expected, added fallback to immediate mode if shader fails to compile.

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Cyberarm
2019-12-08 17:50:20 -06:00
parent e076ce8612
commit af19166af2
9 changed files with 68 additions and 67 deletions
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24
lib/game_objects/camera.rb
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@@ -72,7 +72,7 @@ class IMICFPS
# Calculates aspect ratio of the window. Gets perspective view. 45 is degree viewing angle, (0.1, 100) are ranges how deep can we draw into the screen
gluPerspective(@field_of_view, window.width / window.height, 0.1, @max_view_distance)
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
glRotatef(@orientation.z, 1, 0, 0)
glRotatef(@orientation.x, 1, 0, 0)
glRotatef(@orientation.y, 0, 1, 0)
glTranslatef(-@position.x, -@position.y, -@position.z)
glMatrixMode(GL_MODELVIEW) # The modelview matrix is where object information is stored.
@@ -87,8 +87,8 @@ class IMICFPS
@orientation.y -= delta
@orientation.y %= 360.0
@orientation.z -= Float(@true_mouse.y - self.mouse_y) / (@mouse_sensitivity * @field_of_view) * 70
@orientation.z = @orientation.z.clamp(-90.0, 90.0)
@orientation.x -= Float(@true_mouse.y - self.mouse_y) / (@mouse_sensitivity * @field_of_view) * 70
@orientation.x = @orientation.x.clamp(-90.0, 90.0)
if @entity
@entity.orientation.y += delta
@@ -170,27 +170,15 @@ class IMICFPS
end
def aspect_ratio
window.width / window.height
window.width / window.height.to_f
end
def projection_matrix
fov = 1 / Math.tan(@field_of_view / 2) # field of view
zn = @max_view_distance - @min_view_distance # near plane
zf = @max_view_distance + @min_view_distance # far plane
z_num = -(2 * @max_view_distance * @min_view_distance) / zn # something
Transform.new(
[
fov / aspect_ratio, 0, 0, 0,
0, fov, 0, 0,
0, 0, -zf / zn, z_num,
0, 0, -1, 0
]
)
Transform.perspective(@field_of_view, aspect_ratio, @min_view_distance, @max_view_distance)
end
def view_matrix
Transform.identity# Transform.rotate_3d(@orientation) * Transform.translate_3d(@position)
Transform.translate_3d(@position * -1) * Transform.rotate_3d(@orientation)
end
end
end