cyberarm/i-mic-fps
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Stubbed out VBOs for model

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Cyberarm
2019-12-05 20:43:54 -06:00
parent 6aeee41a71
commit e076ce8612
2 changed files with 49 additions and 56 deletions
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102
lib/model.rb
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@@ -6,9 +6,7 @@ class IMICFPS
attr_accessor :scale, :entity, :material_file, :current_material, :current_object, :vertex_count, :smoothing
attr_reader :position, :bounding_box, :textured_material, :file_path
attr_reader :vertices_buffer_id
attr_reader :vertices_buffer_data
attr_reader :vertices_buffer_size
attr_reader :positions_buffer_id, :colors_buffer_id, :normals_buffer_id, :uvs_buffer_id, :textures_buffer_id
attr_reader :vertex_array_id
attr_reader :aabb_tree
@@ -90,22 +88,37 @@ class IMICFPS
# Allocate arrays for future use
@vertex_array_id = nil
buffer = " " * 4
glGenVertexArrays(1, buffer)
@vertex_array_id = buffer.unpack('L2').first
# Allocate buffers for future use
@vertices_buffer_id = nil
@positions_buffer_id = nil
buffer = " " * 4
glGenBuffers(1, buffer)
@vertices_buffer_id = buffer.unpack('L2').first
@positions_buffer_id = buffer.unpack('L2').first
@colors_buffer_id = nil
buffer = " " * 4
glGenBuffers(1, buffer)
@colors_buffer_id = buffer.unpack('L2').first
@normals_buffer_id = nil
buffer = " " * 4
glGenBuffers(1, buffer)
@normals_buffer_id = buffer.unpack('L2').first
@uvs_buffer_id = nil
buffer = " " * 4
glGenBuffers(1, buffer)
@uvs_buffer_id = buffer.unpack('L2').first
@textures_buffer_id = nil
buffer = " " * 4
glGenBuffers(1, buffer)
@textures_buffer_id = buffer.unpack('L2').first
end
def populate_vertex_buffer
@vertices_buffer_size = 0
@vertices_buffer_data = []
verts = []
colors = []
norms = []
@@ -117,44 +130,33 @@ class IMICFPS
colors << face.colors.map { |vert| [vert.x, vert.y, vert.z] }
norms << face.normals.map { |vert| [vert.x, vert.y, vert.z, vert.weight] }
if @has_texture
if has_texture?
uvs << face.uvs.map { |vert| [vert.x, vert.y, vert.z] }
tex_ids << face.material.texture_id ? face.material.texture_id.to_f : -1.0
end
end
verts.each_with_index do |vert, i|
@vertices_buffer_data << vert
@vertices_buffer_data << colors[i]
@vertices_buffer_data << norms[i]
glBindBuffer(GL_ARRAY_BUFFER, @positions_buffer_id)
glBufferData(GL_ARRAY_BUFFER, 3 * verts.size * Fiddle::SIZEOF_FLOAT, verts.flatten.pack("f*"), GL_STATIC_DRAW)
# if @has_texture
# @vertices_buffer_data << uvs[i] if uvs.size > 0
# @vertices_buffer_data << tex_ids[i] if tex_ids.size > 0
# end
glBindBuffer(GL_ARRAY_BUFFER, @colors_buffer_id)
glBufferData(GL_ARRAY_BUFFER, 3 * colors.size * Fiddle::SIZEOF_FLOAT, colors.flatten.pack("f*"), GL_STATIC_DRAW)
glBindBuffer(GL_ARRAY_BUFFER, @normals_buffer_id)
glBufferData(GL_ARRAY_BUFFER, 4 * norms.size * Fiddle::SIZEOF_FLOAT, norms.flatten.pack("f*"), GL_STATIC_DRAW)
if has_texture?
glBindBuffer(GL_ARRAY_BUFFER, @uvs_buffer_id)
glBufferData(GL_ARRAY_BUFFER, 3 * uvs.size * Fiddle::SIZEOF_FLOAT, uvs.flatten.pack("f*"), GL_STATIC_DRAW)
glBindBuffer(GL_ARRAY_BUFFER, @textures_buffer_id)
glBufferData(GL_ARRAY_BUFFER, 1 * tex_ids.size * Fiddle::SIZEOF_FLOAT, tex_ids.flatten.pack("f*"), GL_STATIC_DRAW)
end
data_size = 0
data_size += Fiddle::SIZEOF_FLOAT * 3 * verts.size
data_size += Fiddle::SIZEOF_FLOAT * 3 * colors.size
data_size += Fiddle::SIZEOF_FLOAT * 4 * norms.size
if @has_texture
data_size += Fiddle::SIZEOF_FLOAT * 3 * uvs.size
data_size += Fiddle::SIZEOF_FLOAT * 1 * tex_ids.size
end
@vertices_buffer_size = data_size
data = @vertices_buffer_data.flatten
glBindBuffer(GL_ARRAY_BUFFER, @vertices_buffer_id)
glBufferData(GL_ARRAY_BUFFER, @vertices_buffer_size, data.pack("f*"), GL_STATIC_DRAW)
glBindBuffer(GL_ARRAY_BUFFER, 0)
end
def configure_vao
glBindBuffer(GL_ARRAY_BUFFER, @vertices_buffer_id)
glBindVertexArray(@vertex_array_id)
glEnableVertexAttribArray(0)
@@ -165,34 +167,26 @@ class IMICFPS
program = Shader.get("default").program
stride = 0
position_stride = Fiddle::SIZEOF_FLOAT * 3
color_stride = Fiddle::SIZEOF_FLOAT * 3
normal_stride = Fiddle::SIZEOF_FLOAT * 4
uv_stride = Fiddle::SIZEOF_FLOAT * 3
texture_id_stride = Fiddle::SIZEOF_FLOAT
if @has_texture
stride = position_stride + color_stride + normal_stride + uv_stride + texture_id_stride
else
stride = position_stride + color_stride + normal_stride
end
# index, size, type, normalized, stride, pointer
# vertices (positions)
glVertexAttribPointer(glGetAttribLocation(program, "inPosition"), 3, GL_FLOAT, GL_FALSE, stride, nil)
glBindBuffer(GL_ARRAY_BUFFER, @positions_buffer_id)
glVertexAttribPointer(glGetAttribLocation(program, "inPosition"), 3, GL_FLOAT, GL_FALSE, 0, nil)
handleGlError
# colors
glVertexAttribPointer(glGetAttribLocation(program, "inColor"), 3, GL_FLOAT, GL_FALSE, stride + position_stride, nil)
glBindBuffer(GL_ARRAY_BUFFER, @colors_buffer_id)
glVertexAttribPointer(glGetAttribLocation(program, "inColor"), 3, GL_FLOAT, GL_FALSE, 0, nil)
handleGlError
# normals
glVertexAttribPointer(glGetAttribLocation(program, "inNormal"), 4, GL_FLOAT, GL_FALSE, stride + position_stride + color_stride, nil)
glBindBuffer(GL_ARRAY_BUFFER, @normals_buffer_id)
glVertexAttribPointer(glGetAttribLocation(program, "inNormal"), 4, GL_FLOAT, GL_FALSE, 0, nil)
handleGlError
# uvs
glVertexAttribPointer(glGetAttribLocation(program, "inUV"), 3, GL_FLOAT, GL_FALSE, stride + position_stride + color_stride + normal_stride, nil)
glBindBuffer(GL_ARRAY_BUFFER, @uvs_buffer_id)
glVertexAttribPointer(glGetAttribLocation(program, "inUV"), 3, GL_FLOAT, GL_FALSE, 0, nil)
handleGlError
# texture ids
glVertexAttribPointer(glGetAttribLocation(program, "inTextureID"), 1, GL_FLOAT, GL_FALSE, stride + position_stride + color_stride + normal_stride + uv_stride, nil)
glBindBuffer(GL_ARRAY_BUFFER, @textures_buffer_id)
glVertexAttribPointer(glGetAttribLocation(program, "inTextureID"), 1, GL_FLOAT, GL_FALSE, 0, nil)
handleGlError
glDisableVertexAttribArray(4)